Chrome Moly Yeeb Nkab & Tube

Chrome moly steel yog ib tsev neeg ntawm qis- thiab nruab nrab- alloy steels uas chromium thiab molybdenum yog siv los txhim kho kev ua tau zoo nyob rau hauv siab siab - kev pabcuam kub.

Chromium pab txhawb oxidation thiab scaling kuj thiab cuam tshuam hardenability thiab siab -kub khoom stability.

Molybdenum pab txhawb kom nce siab - qhov kub thiab txias tsis kam mus rau lub sijhawm - nyob ntawm qhov nkag deformation.

Advanced creep-lub zog- cov qib zoo xws li P91, P92, T91 thiab T92 siv cov alloying ntxiv thiab ua tib zoo tswj kev kho cua sov kom ua tiav cov txheej txheem microstructure uas xav tau ntev - lub sij hawm siab - qhov kub thiab txias.

Chrome moly cov ntaub ntawv yog li no dav siv nyob rau hauv qhov chaw uas cov cuab yeej ua hauj lwm nyob rau hauv ua ke ntawm:

Kub + Siab + Lub neej ua haujlwm ntev + Thermal Cycling + Creep Loading

Cov kev lag luam ib txwm muaj xws li thermal tsim hluav taws xob, boilers, refineries, petrochemical nroj tsuag thiab siab - cov khoom siv kub.

Yam khoom	Muab Scope
Tsev Neeg Khoom	Chromium-Molybdenum / Cr-Mo Alloy Steel
ASTM Tube	ASTM A 335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335) Cov ntawv pov thawj
ASTM EFW Tube	ASTM A691 / ASME SA691 Cov Lus Qhia
ASTM Boiler Tube	ASTM A213 / ASME SA213
European Tube	TS EN 10216-2
A335 Qib	P5, P9, P11, P12, P22, P91, P92
A213 Qib	T5, T9, T11, T12, T22, T91, T92
A691 Alloy Tsev Neeg	1Cr, 2Cr, 5Cr, 9Cr
EN Cr-Mo Qib	13CrMo4-5, 10CrMo5-5, 10CrMo9-10, X10CrMoVNb9-1, X10CrWMoVNb9-2
Kev tsim khoom	Seamless / Kub Tiav / Cold Finished / EFW
Yeeb Nkab Dimensions	NPS + Teem caij lossis OD × WT
Tube Dimensions	OD × Phab ntsa Thickness
Ntev	SRL, DRL, 6 m, 12 m, Taag Length, Txiav - mus rau -Length
Xaus	PE / BE / Machined End
Kev tshuaj xyuas	Chemistry, Mechanical Test, PMI, Hardness, NDT, Hydro/Pressure Test
Daim ntawv pov thawj	MTC / EN 10204 3.1; project-cov ntaub ntawv tshwj xeeb muaj
Thib peb	SGS / BV / TÜV / Cov Neeg Siv Khoom - Nominated Inspector
Daim ntawv thov	Fais fab · Boiler · Refinery · Petrochemical · Chav · Hydrogen Service

 

 

ASTM A335 npog seamless ferritic alloy - cov yeeb nkab steel npaj rau siab - qhov kub thiab txias. Cov kev cai ASTM tam sim no suav nrog tshuaj lom neeg, tensile, hardness, hydrostatic thiab nondestructive kuaj cov cai.

ASTM A335 yog tus qauv tseem ceeb thaum cov neeg yuav khoom nrhiav:

Chrome Moly Yeeb Nkab

Cr-Mo Seamless Pipe

High Temperature Alloy Steel Yeeb Nkab

P11 cev

P22 cev

p91 cev

ASTM A335 Qib Ntau

Qib	General Alloy Tsev Neeg	Cov ntawv thov kev yuav khoom
P5	Kwv yees li . 5Cr-0.5Mo	Refinery thiab petrochemical txheej txheem piping
P9	Kwv yees li . 9Cr-1Mo	High -kub refinery piping
P11	Kwv yees li . 1.25Cr-0.5Mo	Chav, boiler thiab txheej txheem piping
P12	Kwv yees li . 1Cr-0.5Mo	Ua kom siab -kub siab piping
P22	Kwv yees li . 2.25Cr-1Mo	Fais fab, refinery thiab chav tshuab
P91	Hloov kho 9Cr-1Mo-V-Nb	Siab - zog thiab siab - kev ua tau zoo ntawm cov kav dej
P92	Advanced 9Creep-cov tsev neeg tiv taus	Advanced high -kub chav piping

Cov lus piav qhia nominal alloy tsuas yog muab rau kev qhia txog kev yuav khoom xwb. Qhov tseeb chemistry yuav tsum raug kuaj xyuas raws li ASTM / ASME specification thiab MTC.

P11 belongs rau cov pa qis dua -chromium Cr-Mo tsev neeg thiab tau dav dav rau kev siab siab - qhov kub thiab txias kev pab cuam.

Cov ntawv thov muaj xws li chav tshuab, cov txheej txheem refinery kab, boiler -txog piping thiab petrochemical systems.

P11 muaj qhov sib npaug ntawm qhov ua tau zoo ntawm - cov khoom kub, muaj thiab cov khoom yuav tsum tau ua.

P11 yuav tsum tsis txhob raug hloov los ntawm P22 lossis lwm qib vim tias cov khoom siv raug yuav tsum ua raws li qhov project piping material specification.

P22 belongs rau kwv yees2.25Cr-1Motsev neeg thiab yog ib qho tseem ceeb tshaj plaws ntawm Chrome Moly piping qib.

Nws yog dav siv nyob rau hauv fais fab nroj tsuag, chav tshuab, boiler sib txuas, refinery txheej txheem piping thiab petrochemical installation.

Rau fabricated P22 systems, WPS / PQR yuav tsum tswj vuam consumables, preheat, interpass kub, tshav kub input thiab PWHT raws li txoj cai kev tsim kho.

P5 belongs rau qhov kwv yees5Cr-0.5Moalloy tsev neeg.

Nws cov ntsiab lus chromium siab dua ua rau nws tseem ceeb rau kev xaiv refinery thiab petrochemical cov kev pabcuam uas yuav tsum muaj alloying ntau dua li cov khoom siv P11 / P22.

P5 yog tshwj xeeb tshaj yog muaj feem xyuam rau refinery- taw qhia Chrome Moly khoom pawg.

P9 belongs rau kwv yees9Cr-1Moalloy tsev neeg.

Nws yuav tsum tsis txhob totaub nrog P91.

Txawm hais tias ob qho tib si feem ntau tau piav qhia tias yog 9% cov ntaub ntawv chromium, P91 yog ib qho creep-lub zog- txhim kho steel nrog kev tswj xyuas ntxiv thiab cov cua sov sib txawv heev- kev kho thiab kev tsim khoom.

P91 yog ib qho creep-lub zog- txhim kho ferritic steel feem ntau piav raws li hloov kho 9Cr-1Mo-V-Nb khoom.

Nws qhov kev yuav khoom yuav tsum tau saib xyuas ntau dua rau:

Khoom Taw Qhia → Thaum tshav kub kub kho → Microstructure → Hardness → Vuam → PWHT → Kev tshuaj xyuas

Rau qhov tseem ceeb P91 tej yaam num, Dongmeng Group tuaj yeem tswj xyuas cov ntaub ntawv traceability, PMI, hardness test, MTC tshuaj xyuas thiab project-cov ntaub ntawv tshuaj xyuas tshwj xeeb.

P91 yuav tsum tsis txhob piav tsuas yog "kho kom zoo dua P22."

Kev hloov ntawm P22 mus rau P91 tuaj yeem cuam tshuam rau cov yeeb nkab-vim phab ntsa, fittings, flanges, vuam consumables, WPS/PQR, PWHT thiab kev soj ntsuam yuav tsum tau.

P92 yog ib qho kev nkag siab siab heev-lub zog- txhim kho ferritic alloy siv feem ntau nyob rau hauv qhov hnyav siab -lub zog kub- tiam ntawv thov.

Nws lub sijhawm ntev - kev ua tau zoo yog nyob ntawm kev tsim khoom raug, kev kho cua sov thiab kev tsim khoom hauv qab.

Rau P92 RFQs, cov neeg yuav khoom yuav tsum qhia meej meej txog cov khoom siv uas xav tau, qhov ntev, phab ntsa tuab, cua sov- kev kho mob, qib tshuaj xyuas thiab pob ntawv pov thawj

 

 

ASTM A691 yog ib qho tseem ceeb ntawm Chrome Moly tus qauv rauhluav taws xob-fusion-welded alloy steel yeeb nkab tsim los ntawm siab- nkoj- zoo phajrau siab - kev pabcuam siab ntawm qhov kub siab. Qhov tshwj xeeb nominally npog cov yeeb nkab 16 in. / 400 mm OD thiab loj dua, txawm tias lwm qhov ntev yuav muab tau thaum lawv ua raws li tus qauv.

A691 yog li tseem ceeb tshwj xeeb rau:

Loj Dia

Phab ntsa hnyav

Siab -siab

Project-Tshwj xeeb Chrome Moly Piping

Feem ntau ASTM A691 Chrome Moly Tsev Neeg

A691 Qib Tsev Neeg	Hom Phaj Tsev Neeg	Kev piav qhia dav dav
1 ¼ Cr	A387 Qib 11 tsev neeg	Kwv yees li . 1.25Cr-0.5Mo
2 ¼ Cr	A387 Qib 22 tsev neeg	Kwv yees li . 2.25Cr-1Mo
5 Cr	A387 Qib 5 tsev neeg	Kwv yees li . 5Cr-0.5Mo
9 cr ua	A387 Qib 9 tsev neeg	Kwv yees li . 9Cr-1Mo

Daim ntawv qhia meej meej, qib, chav kawm thiab qhov project yuav tsum raug txheeb xyuas thaum lub sijhawm hais.

Qhov no yog ib qho ntawm cov ntsiab lus tseem ceeb tshaj plaws ntawm tag nrho Chrome Moly nplooj ntawv.

Rau ASTM A691:

Qib=txheeb xyuas cov khoom siv phaj

Chav kawm=txheeb xyuas qhov tseem ceeb ntawm kev tsim khoom thiab kev tshuaj xyuas

ASTM hais tias Chav Kawm txheeb xyuas cov yeeb nkab kho cua sov, seb lub vuam puas raug kuaj xyuas thiab seb cov yeeb nkab puas raug kuaj.

ASTM A691 Chav Kawm System

Chav Tsev Neeg	Kev kho cua sov yeeb nkab
10–13	Tsis muaj
20–23	Kev ntxhov siab
30–33	Li qub
40–43	Normalized + Tempered
50–53	Quenched + Tempered

Cov lej kawg hauv chav kawm tom qab ntawd paub qhov txawv ntawm radiography thiab siab -kev xeem ua ke.

Piv txwv li:

Chav kawm 22=Stress Relieved + Radiography + Pressure Test

Chav kawm 42=Normalized & Tempered + Radiography + Pressure Test

Chav kawm 52=Quenched & Tempered + Radiography + Kev Ntsuas Siab

ASTM cov chav kawm tam sim no lees paub cov kev sib txuas no.

Yog li ntawd:

"ASTM A691 2¼Cr Pipe" tsis yog ib qho kev qhia ua tiav.

Lub zog RFQ yog:

ASTM A691 / 2¼Cr / Chav Kawm 42 / OD × WT / Length / Ends / Quantity / Inspection / MTC

Kev xav tau	ASTM A335 Cov Lus Qhia Tshwj Xeeb	ASTM A691 Cov Lus Qhia Tshwj Xeeb
Khoom	Yeeb	Yeeb
Kev tsim khoom	Seamless	EFW
Khoom siv hauv paus	Alloy steel billet / raj hollow	Siab- nkoj- phaj zoo
Main Service	High -kub kav	Siab -siab, siab -kub piping
Longitudinal Weld	Tsis muaj	Yog lawm
Loj Dia	Muaj peev xwm nyob ntawm ntau lawm	Thaj chaw thov loj
Main Procurement Control	Qib	Qib + Qib
Weld RT	Tsis siv tau	Chav kawm nyob
Kev kho cua sov yeeb nkab	Qib / specification nyob ntawm	Chav kawm/qib nyob ntawm
Main RFQ Format	Qib + Loj + Teem sijhawm	Qib + Chav Kawm + OD + WT

Tsis yog tus qauv yuav tsum tau piav qhia tias zoo dua thoob ntiaj teb.

Txoj kev tsim khoom raug yog nyob ntawm txoj kab uas hla, phab ntsa thickness, qib, cov cai yuav tsum muaj, muaj, tshuaj xyuas thiab qhov project economics.

 

 

ASTM A213 yog qhov tseem ceeb rau kev ua tiav Chrome Moly cov khoom lag luam.

Tam sim no ASTM A213 / A213M specification npog seamless ferritic thiab austenitic alloy-steelboiler, superheater thiab cua sov-exchanger tubes. Cov raj tuaj yeem ua tiav kub lossis txias tiav raws li tau teev tseg thiab raug rau cov khoom lag luam - cov kev ntsuas tshwj xeeb.

Cov khoom no tsev neeg yuav tsum yog li ntawd yuav tsum tau muab cais los ntawm A335 yeeb nkab es tsis muab sib xyaw rau hauv tib daim ntawv teev npe.

ASTM A213 Chrome Moly Qib Qib

Qib	General Alloy Tsev Neeg	Daim ntawv thov
T5	Kwv yees li . 5Cr-0.5Mo	Refinery heaters thiab high -cov khoom siv kub
T9	Kwv yees li . 9Cr-1Mo	High -kub boiler/cov khoom siv txheej txheem
T11	Cr-Mo low-alloy tsev neeg	Boiler thiab superheater raj
T12	Cr-Mo low-alloy tsev neeg	Kev pabcuam boiler
T22	Kwv yees li . 2.25Cr-1Mo	Boiler, superheater thiab reheater
T91	Hloov kho 9Creep-resistant alloy	High -kub fais fab boiler
T92	Advanced creep-resistant alloy	Ultra/siab-kub fais fab boiler

 

Tom ntej: ASTM A213 T11 Boiler Tube

T11 yog dav siv nyob rau hauv boiler, superheater thiab cua sov- hloov daim ntawv thov yuav tsum tau Cr-Mo elevated- kub khoom.

Tsis zoo li P11 yeeb nkab, T11 raj feem ntau yuav siv:

OD × Phab ntsa Thickness

es tsis yog siv NPS + Teem sijhawm.

Tom ntej: ASTM A213 T22 Boiler Tube

T22 belongs rau kwv yees li 2.25Cr-1Mo cov khoom siv tsev neeg thiab yog ib tug loj Chrome Moly boiler raj qib.

Cov ntawv thov muaj xws li superheaters, reheaters, boiler siab qhov chaw thiab lwm yam siab -kub kub- hloov khoom siv.

Tom ntej: ASTM A213 T91 Boiler Tube

T91 yog ib qho creep-lub zog- txhim kho boiler thiab superheater tube khoom cuam tshuam nrog kev xav tau lub zog niaj hnub- cov khoom siv tiam.

Raws li nrog P91, chemistry ib leeg tsis txaus.

Cov khoom siv, kev kho cua sov, hardness, vuam thiab PWHT tswj yog qhov tseem ceeb rau kev ua haujlwm kawg.

Tom ntej: ASTM A213 T92 Boiler Tube

T92 yog siv nyob rau hauv siab siab -kub boiler systems yuav tsum muaj zog ntev - lub sij hawm creep kev ua tau zoo.

T92 kev yuav khoom ib txwm xav tau kev tswj xyuas cov ntaub ntawv pov thawj, kev kho cua sov, cov txheej txheem tsim khoom thiab cov ntaub ntawv tshuaj xyuas.

 

Qib Qib	Related Tube Qib	Qhov txawv tseem ceeb
A335 P5	A213 T5	Tube vs boiler / superheater raj
A335 P9	A213 T9	Tube vs boiler / superheater raj
A335 P11	A213 T11	Siab piping vs tshav kub-transfer tube
A335 P12	A213 T12	Siab piping vs boiler raj
A335 P22	A213 T22	Siab piping vs boiler / superheater raj
A335 P91	A213 T91	Siab- lub zog yeeb nkab vs qib siab boiler raj
A335 P92	A213 T92	Advanced yeeb nkab vs advanced boiler raj

Tib Alloy Tsev Neeg Tsis txhais tau tib yam khoom

Ib qho yuam kev ntawm kev yuav khoom yog xav tias:

P11 = T11

los yog

P22 = T22

vim hais tias cov chemistry zoo nkaus li cuam tshuam.

Qhov ntawd yog qhov tsis raug los ntawm cov khoom lag luam - qhov kev xav tshwj xeeb.

A335 tswjcev.

A213 tswjboiler, superheater thiab cua sov-exchanger tube.

Yog li cov khoom siv tshwj xeeb hu rau T22 yuav tsum tsis txhob cia li hais tias P22 tsuas yog vim tias ob leeg koom nrog 2.25Cr-1Mo tsev neeg zoo sib xws.

Rau cov haujlwm nyob sab Europe, EN 10216-2 yog lwm qhov tseem ceeb ntawm qhov kub-kub alloy tube specification.

TS EN 10216-2: 2024 qhia cov txheej txheem kev xa khoom rau seamless non- alloy thiab alloy steel hlab nrog cov khoom ntsuas kub siab.

Tseem ceeb EN 10216-2 Cr-Mo Qib

Qib	Khoom No.	Tsev Neeg Khoom Khoom
13CrMo4-5	1.7335	Cr-Mo
10CrMo5-5	1.7338	Cr-Mo
10CrMo9-10	1.738	Kwv yees li . 2.25Cr-1Mo
11CrMo9-10	1.7383	Cr-Mo
X10CrMoVNb9-1	1.4903	Creep-resistant Cr-Mo-V-Nb
X10CrWMoVNb9-2	1.4901	Advanced creep-resistant Cr-W-Mo-V-Nb

Tam sim no EN 10216-2 cov ntaub ntawv suav nrog cov tsev neeg Cr-Mo cov pa thiab qib siab.

EN 10216-2 13CrMo4-5

13CrMo4-5 / 1.7335 yog dav siv rau kev siv siab kub siab xws li boiler thiab cov khoom siv siab.

EN 10216-2 10CrMo5-5

10CrMo5-5 / 1.7338 yog lwm European Cr-Mo alloy qib siv rau kev siv siab nrog cov khoom siv siab-kub.

EN 10216-2 10CrMo9-10

10CrMo9-10 / 1.7380 belongs rau kwv yees li 2.25Cr-1Mo tsev neeg thiab tau lees paub dav hauv European boiler thiab cov khoom siv siab.

EN 10216-2 X10CrMoVNb9-1

X10CrMoVNb9-1 / 1.4903 yog creep-resistant Cr-Mo-V-Nb cov khoom txuam nrog kev thov siab-kub qhov kev pab cuam.

Nws lub tswv yim alloy yog ze dua rau qib siab qib 91 cov tsev neeg cov khoom dua li cov pa 13CrMo4-5 lossis 10CrMo9-10.

Cov neeg yuav khoom feem ntau nrhiav kev sib raug zoo xws li:

P22 sib npaug rau 10CrMo9-10

los yog

P91 sib npaug rau X10CrMoVNb9-1

Cov kev sib piv no yuav muaj txiaj ntsig zoo rau kev nkag siab cov tsev neeg cov ntaub ntawv, tab sis lawv yuav tsum tsis txhob muab nthuav tawm raws li kev hloov pauv tsis siv neeg.

Ob qib yuav muaj qhov dav dav zoo sib xws metallurgy thaum sib txawv hauv:

Kev txwv tshuaj lom neeg, khoom siv hluav taws xob, cua sov- cov kev cai kho mob, qhov ntev, kev kam rau siab, kev sim, qeb tshuaj ntsuam xyuas thiab kev lees paub.

Ib qho ASTM-rau-EN hloov pauv yuav tsum tau pom zoo los ntawm tus kws ua haujlwm lub luag haujlwm lossis txoj haujlwm tshwj xeeb txoj cai.

Yuav tsum tsis muaj lub vev xaib yooj yim lub rooj hais tias:

"Siv P11 hauv qab X℃thiab P22 saum X℃."

Kev xaiv cov khoom siv siab xav tau cov ntaub ntawv ntxiv.

Tsim Kub

Raws li qhov kub thiab txias, kev ntxhov siab, kev coj tus cwj pwm oxidation thiab creep ua qhov tseem ceeb.

Tsim Siab

Kev ntxhov siab cuam tshuam rau qhov xav tau ntawm phab ntsa thickness thiab qhov kev tso cai tsim kev ntxhov siab siv los ntawm engineering code.

Yuav Tsum Tsim Lub Neej

High -kub tshuab ua haujlwm tau ntau xyoo yuav tsum xav txog kev nkag mus thiab ntev - lub sij hawm degradation.

Txheej Txheem Nruab Nrab

Chav, hydrocarbons, hydrogen-muaj cov kua thiab lwm yam txheej txheem ib puag ncig tsim cov khoom sib txawv- teeb meem xaiv.

Kev tsim kho Code

Txoj cai siv tau tswj cov khoom txais, tso cai rau kev ntxhov siab, tsim thiab tshuaj xyuas cov cai.

Vuam Requirements

P11, P22, P91 thiab P92 tsis muaj cov txheej txheem vuam zoo ib yam.

Khoom Compatibility

Cov yeeb nkab, raj, fittings, flanges, li qub thiab vuam consumables yuav tsum raug soj ntsuam raws li ib feem ntawm tag nrho cov system.

Qib	Alloy tswvyim	Kev xav txog kev yuav khoom
P11	Cov pa qis dua -alloy Cr-Mo	Common high -kub piping qib
P22	Kwv yees li . 2.25Cr-1Mo	Siab dua - alloy pa Cr-Mo
P91	Hloov kho 9Creep-lub zog- txhim kho	Ntau stricter fabrication tswj

P91 yuav tsum tsis txhob saib tsuas yog qib tom ntej saum toj no P22.

Tsiv ntawm P22 mus rau P91 tuaj yeem cuam tshuam rau tag nrho cov kav dej tsim thiab kev tsim khoom.

Chrome Moly cov ntaub ntawv tau pom dav dav hauv cov tshuab ua kom zoo thiab cov khoom siv petrochemical ua haujlwm nrog hydrogen- muaj cov kua dej ntawm qhov kub thiab txias.

Txawm li cas los xij:

Chrome Moly ≠ cia li haum rau txhua qhov kev pabcuam hydrogen.

Kev xaiv cov khoom siv yuav tsum xav txog qhov kub thiab txias, hydrogen ib feem ntawm qhov siab, kev ntxhov siab, metallurgy, kev kho cua sov thiab qhov project- cov cai tshwj xeeb.

API RP 941 hais txog carbon thiab qis- alloy steels hauv siab - kub, siab - kev pabcuam hydrogen thiab yog ib qho tseem ceeb engineering siv rau refinery thiab petrochemical khoom xaiv.

Yog li ntawd, tus kws tsim khoom siv yuav tsum ntsuas hydrogen- kev pabcuam kom haum es tsis yog xaiv qib los ntawm cov ntsiab lus chromium nkaus xwb.

Txoj kev txiav txim sib txawv ntawm tsev neeg cov khoom.

ASTM A335 Yeeb Nkab

Nquag xaj raws li:

NPS + Teem caij

los yog

OD × Phab ntsa Thickness

Cov lus piav qhia ntawm phab ntsa muaj xws li:

SCH 40 · SCH 80 · SCH 120 · SCH 160 · STD · XS · XXS · Heavy Wall

ASTM A691 Yeeb Nkab

Feem ntau qhov project- tshwj xeeb:

OD × Phab ntsa Thickness

tshwj xeeb tshaj yog rau loj - txoj kab uas hla EFW kev tsim kho.

ASTM A213 Tube

Nquag xaj raws li:

OD × Phab ntsa Thickness

Tube tolerances thiab qhov ntev yuav tsum tau lees paub tiv thaiv cov khoom siv tshwj xeeb.

EN 10216-2 Tube

Nquag txiav txim raws li metric OD × phab ntsa tuab ua ke nrog qib steel, kev xa khoom thiab kev soj ntsuam yuav tsum tau ua.

Kev kho cua sov yog ib qho tseem ceeb tshaj plaws ntawm kev tswj hwm hauv Chrome Moly cov khoom ua tau zoo.

Nyob ntawm qib thiab cov qauv khoom, cov khoom siv yuav suav nrog txoj hauv kev xws li annealing, normalizing, normalizing and tempering, stress relieving, quenching and tempering, los yog specifications -txhais cua sov-kub kho.

Rau P91, P92, T91 thiab T92, kev kho cua sov yog qhov tseem ceeb tshwj xeeb vim tias qhov yuav tsum tau nkag mus-cov khoom tiv thaiv nyob ntawm qhov kawg microstructure.

Qhov project RFQs tseem ceeb yuav tsum txhais seb puas muaj cua sov ntxiv - cov ntaub ntawv kho mob yuav tsum tau.

Cov khoom siv Chrome Moly yog weldable, tab sis tsis muaj ib qho txheej txheem vuam tsim nyog rau txhua qib Cr-Mo.

Ib tus tsim nyog WPS / PQR yuav tsum tswj hwm qhov tsis sib xws raws li:

Cov khoom siv qib, thickness, sib koom tsim, muab tub lim hlau, kev pabcuam thiab kev tswj hwm kev tsim kho.

Cov kev tswj no muaj xws li preheat, interpass kub, qis -hydrogen xyaum, tshav kub input, tswj txias thiab PWHT.

Qib 91 thiab Qib 92 cov ntaub ntawv yuav tsum muaj kev tswj hwm kev tsim khoom tshwj xeeb.

 

Kev tshuaj xyuas	Lub Hom Phiaj
Tshuaj ntsuam xyuas	Txheeb xyuas cov alloy muaj pes tsawg leeg
Mechanical Testing	Txheeb xyuas cov khoom uas xav tau
PMI	Tiv thaiv alloy-qib mix-up
Hardness	Txheeb xyuas cov khoom siv / cua sov- kho mob yog tias muaj
Dimensional soj ntsuam	Txheeb xyuas OD, WT, ntev, ncaj thiab kam rau ua
Kev tshuaj xyuas qhov muag	Tshawb xyuas qhov chaw thiab kev ua haujlwm
UAS / NDE	Txheeb xyuas qhov tsis zoo uas cuam tshuam
Hydrostatic / Siab Test	Standard / project pov thawj
Xov tooj cua	Tshwj xeeb muaj feem xyuam rau A691 EFW Chav Kawm yuav tsum
Kev Tshawb Fawb Kub Kub	Khaws cov ntaub ntawv traceability
Kev tshuaj ntsuam xyuas	Txheeb xyuas qib, tus qauv thiab cov khoom siv hluav taws xob
Thib peb-Kev soj ntsuam tog	Kev txheeb xyuas qhov project ywj pheej

P5, P9, P11, P22 thiab P91 tuaj yeem saib yuav luag zoo ib yam.

Tib yam siv rau ntau Cr-Mo boiler raj qib qib.

Kev txheeb xyuas qhov pom tsis txaus rau kev sib xyaw ua ke -alloy project.

Txoj kev traceability kev tshaj lij yuav tsum ua raws li:

Mill → Thaum tshav kub kub tooj → MTC → Pipe / Tube Marking → PMI → Txiav Traceability → Fabrication → Cov ntaub ntawv kawg

Qhov twg cov yeeb nkab raug txiav ua luv luv, qhov ntsuas kub yuav tsum nyob twj ywm traceable raws li cov khoom siv hauv qhov project- tswj cov txheej txheem.

MTC khoom	Neeg yuav khoom
Txuj	Qhov sib txawv ntawm kev yuav khoom
Qib	Yog qib P/T/EN
Kub naj npawb	Sib phim cov khoom siv lub cev
Chemistry	Ua tau raws li qhov txwv
Mechanical Properties	Ua tau raws li qhov xav tau tshwj xeeb
Kev kho cua sov	Kho mob
Qhov ntev	Matches PO
NDE	Yuav tsum tau xeem ntawv tiav
Hydro/Pressure Test	Ua tiav qhov tsim nyog
Daim ntawv pov thawj	Yuav tsum muaj cov ntaub ntawv qib
Traceability	Cov khoom siv lub cev tuaj yeem txuas nrog daim ntawv pov thawj

Rau EPC kev yuav khoom, pob ntawv cov ntaub ntawv yuav tsum raug kho raws li ib feem ntawm cov khoom nws tus kheej.

Chrome Moly tej yaam num ib txwm xav tau ntau tshaj cov yeeb nkab ncaj.

Nyob ntawm cov khoom siv kav dej, cov ntaub ntawv muaj feem xyuam tuaj yeem suav nrog:

ASTM A234 Cr-Mo Butt- Weld Fittings

ASTM A182 Cr-Mo Forged Fittings thiab Flanges

Lub luj tshib · Tees · Reducers · Caps · Flanges

Piv txwv li, P11-tsev neeg cov yeeb nkab tuaj yeem ua ke nrog cov khoom tsim nyog WP11 thiab F11-tsev neeg cov khoom uas tso cai los ntawm cov kav dej hauv chav kawm.

Kev xaiv cov khoom siv yuav tsum ua raws li qhov project specification es tsis yog tsuas yog txuam nrog cov npe lag luam zoo sib xws.

Lub zog tiam

P22, P91, P92, T22, T91 thiab T92 cov ntaub ntawv tseem ceeb hauv kev nce siab -kub thiab boiler systems.

Cov ntawv thov tuaj yeem suav nrog cov kab tseem ceeb, cov tshuab kub reheat, boiler sib txuas, superheaters thiab reheaters.

Roj Refinery

P5, P9, P11, P22 thiab lwm yam Cr-Mo cov ntaub ntawv yog dav ntsib nyob rau hauv elevated -kub refinery piping thiab khoom siv.

Kev xaiv cov khoom nyob ntawm cov txheej txheem ib puag ncig thiab cov kav dej hauv chav kawm.

Petrochemical processing

Cr-Mo alloys yog siv rau hauv thermal- cov txheej txheem ua haujlwm thiab nce siab - cov cuab yeej kub siab uas cov pa roj carbon steel tsis muab cov khoom siv uas xav tau.

Boiler Manufacturing

ASTM A213 T11, T22, T91 thiab T92 yog qhov tseem ceeb tshwj xeeb rau boiler, superheater thiab reheater siv.

EPC Projects

Cov dej num loj tuaj yeem ua ke A335 seamless yeeb nkab, A691 loj - txoj kab uas hla EFW yeeb nkab thiab A213 boiler raj hauv tib qhov chaw.

Cov nplooj ntawv qeb yuav tsum yog li tso cai rau pawg neeg yuav khoom los txheeb xyuas cov qauv khoom raug ua ntej xa RFQ.

Dongmeng Group tuaj yeem koom tes nrog Chrome Moly yeeb nkab thiab raj xaj nrog qhov project -kev npaj tshwj xeeb.

Cov kev pabcuam muaj tuaj yeem suav nrog kev kho-ntev ntev, qhov kawg beveling, machining, cim cim, qib sib cais, cua sov-tus lej tswj, kev tshuaj xyuas kev sib koom tes, kev kho mob thiab seaworthy export packing.

Cov ntaub ntawv tuaj yeem raug teeb tsa raws li:

Qib · Heat Number · Qhov Loj · Cov Khoom Piping · PO Kab · Project Package

Qhov no muaj txiaj ntsig tshwj xeeb rau EPC thiab kev txiav txim tsim khoom uas muaj ntau yam Cr-Mo qib.

Cov ntaub ntawv yuav tsum tau pom zoo ua ntej kev txiav txim pom zoo.

Cov ntaub ntawv muaj tuaj yeem suav nrog:

MTC / EN 10204 3.1

Chemical and Mechanical Test Results

Thaum tshav kub kub Number Traceability

PMI Report

Daim ntawv qhia Hardness

NDT Report

Hydrostatic / Siab Test Report

A691 Weld RT Cov Ntaub Ntawv yog qhov tsim nyog

Dimensional Inspection Report

Thaum tshav kub kub-Cov ntaub ntawv kho mob uas tau teev tseg

Thib peb-Kev Tshawb Fawb Tso Tawm

Packing List thiab Shipping Documentation

Qhov project- tshwj xeeb MDR cov cai yuav raug tshuaj xyuas thaum lub sijhawm hais.

 

Plaub yam khoom siv los ntawm ib tus neeg muab khoom

Dongmeng Group npog:

A335 Tube + A691 EFW Yeeb Nkab + A213 Boiler Tube + EN 10216-2 Tube

Qhov no tso cai rau pawg neeg yuav khoom los muab ntau yam khoom siv Chrome Moly cov tsev neeg los ntawm ib txoj haujlwm muab kev pabcuam.

Pauv thiab Advanced Cr-Mo Qib

Cov khoom siv npog tsoos P11/P22/T11/T22 cov ntaub ntawv ua ke nrog qib siab P91/P92/T91/T92 thiab European Cr-Mo qib.

Seamless + EFW muaj peev xwm

Ob qho tib si pa seamless siab yeeb nkab thiab loj - txoj kab uas hla - cov yeeb nkab EFW tshwj xeeb tuaj yeem ntsuas.

Khoom siv Traceability

Thaum tshav kub kub -tus lej traceability, MTC pov thawj, PMI thiab qhov project cim tuaj yeem muab tso rau hauv qhov kev txiav txim.

Kev Txhawb Kev Tshawb Fawb

PMI, hardness, NDE, kev ntsuas siab thiab thib peb- kev tshuaj xyuas tog tuaj yeem npaj raws li PO thiab ITP.

EPC Cov ntaub ntawv txhawb nqa

Kev soj ntsuam thiab cov ntaub ntawv yuav tsum tau txhais ua ntej ntau lawm los txo cov teeb meem kev pom zoo ua ntej xa khoom.

 

Rau kev tshuaj xyuas sai dua, xa:

Txuj + Qib + Cov Khoom Muag + NPS / OD + Phab Ntsa / Teem sijhawm + Ntev + Ntau + Kev Kho Kub Kub + Xaus + Kev Tshuaj Xyuas + Ntawv Pov Thawj + Xa Mus Los

A335 Ib

ASTM A335 P22 / NPS 8 / SCH 80 / BE / 12 m / 30 MT / EN 10204 3.1 / PMI Yuav tsum tau

A691 Ib

ASTM A691 2¼Cr / Chav Kawm 42 / OD 610 mm × WT 30 mm / 12 m / RT + Kev Ntsuas Siab / MTC 3.1

A213 Piv txwv

ASTM A213 T22 / OD 50.8 × WT 5.0 hli / 12 m / 10 MT / NDE / MTC 3.1

EN Piv txwv

EN 10216-2 10CrMo9-10 / OD × WT / +NT lossis qhov project-yuav tsum tau xa khoom / EN 10204 3.1

Rau EPC tej yaam num, cov neeg muas zaub tuaj yeem xa covMTO, BOM, Piping Material Specification, Daim Ntawv Qhia lossis Kev Xav Taurau kev tshuaj xyuas.

Chrome Moly Pipe yog dab tsi?

Chrome Moly yeeb nkab yog chromium-molybdenum alloy steel yeeb nkab siv feem ntau hauv kev siab siab - qhov kub siab qhov kev pab cuam qhov kev txhim kho siab - kub lub zog, creep zog thiab oxidation cwj pwm yuav tsum tau.

Cov qib ASTM A335 feem ntau yog dab tsi?

Cov qib kev lag luam muaj xws li P5, P9, P11, P12, P22, P91 thiab P92.

Dab tsi yog qhov txawv ntawm ASTM A335 thiab ASTM A213?

ASTM A335 npog seamless siab -kub alloy- hlaucev.

ASTM A213 npog seamless boiler, superheater thiab cua sov-exchangercev.

Puas yog P22 zoo ib yam li T22?

Tsis muaj.

Lawv muaj feem xyuam rau tsev neeg alloy, tab sis P22 yog qib A335 yeeb nkab thaum T22 yog qib A213 raj.

Puas yog P91 zoo ib yam li T91?

Tsis muaj.

Ob leeg koom nrog hloov kho 9Creep-lub zog- txhim kho cov tsev neeg cov khoom, tab sis lawv tau tswj hwm los ntawm cov khoom sib txawv thiab siv cov khoom sib txawv.

Qhov txawv ntawm P9 thiab P91 yog dab tsi?

P9 yog ib qho piv txwv kwv yees li 9Cr-1Mo qib.

P91 yog ib qho kev hloov kho creep-lub zog- txhim kho 9Cr alloy nrog kev tswj xyuas ntxiv thiab cov cua sov sib txawv- kev kho mob.

ASTM A691 siv rau dab tsi?

ASTM A691 npog EFW carbon thiab alloy steel yeeb nkab tsim los ntawm siab- nkoj- zoo phaj rau siab - kev pabcuam siab ntawm qhov kub siab.

Nws yog ib qho tseem ceeb tshwj xeeb rau qhov loj -inch Chrome Moly piping.

Vim li cas ASTM A691 xav tau Chav Kawm?

Chav kawm txhais cov kev cai tseem ceeb uas muaj xws li kev kho cua sov yeeb nkab, vuam radiography thiab kev ntsuas siab.

Yog li Qib ib leeg tsis yog ua tiav A691 kev yuav khoom piav qhia.

ASTM A213 T22 siv rau dab tsi?

T22 feem ntau yog siv rau hauv boiler, superheater, reheater thiab lwm yam elevated -kub kub- hloov khoom siv.

Yam twg EN tus qauv npog Chrome Moly seamless siab raj?

TS EN 10216-2 npog seamless uas tsis yog- alloy thiab alloy steel hlab nrog cov khoom ntsuas qhov kub thiab txias.

Puas yog 10CrMo9-10 sib npaug rau P22?

Lawv koom nrog ntau yam sib piv Cr-Mo cov tsev neeg, tab sis lawv yuav tsum tsis txhob raug kho raws li kev hloov pauv tau.

Cov khoom siv raws li tus qauv, chemistry, mechanical xav tau, kev kho cua sov, kev kuaj thiab kev lees paub yuav tsum raug tshuaj xyuas.

Puas yog Chrome Moly yeeb nkab xav tau PWHT?

Yog tsis muaj universal teb.

Cov kev xav tau nyob ntawm qib, thickness, kev tsim kho code, kev pabcuam thiab cov txheej txheem vuam tsim nyog.

Vim li cas PMI thiaj pom zoo?

Sib txawv Cr-Mo qib tuaj yeem pom lub cev zoo ib yam.

PMI pab txheeb xyuas tus kheej ntawm alloy thiab txo qhov kev pheej hmoo ntawm cov khoom sib xyaw- nce.

Cov khoom siv Chrome Moly puas tuaj yeem siv rau hauv kev pabcuam hydrogen?

Siv tau Cr-Mo cov ntaub ntawv yog dav siv nyob rau hauv elevated -kub hydrogen- muaj cov kev pab cuam refinery, tab sis haum nyob ntawm qhov kub thiab txias, hydrogen ib nrab siab thiab engineering xav tau.

API RP 941 yog ib qho tseem ceeb siv rau hom kev ntsuam xyuas no.

Peb puas tuaj yeem npaj kev tshuaj xyuas thib peb?

Yog lawm. Kev tshuaj xyuas los ntawm SGS, BV, TÜV lossis lwm lub koom haum soj ntsuam pom zoo tuaj yeem koom tes thaum tau teev tseg hauv daim ntawv xaj khoom.

Dongmeng Group puas tuaj yeem muab MTC 3.1?

Yog lawm. MTC / EN 10204 3.1 thiab cov ntaub ntawv ntxiv txog qhov project tuaj yeem muab tau raws li qhov kev pom zoo yuav khoom.

 

Xav tauASTM A335 P5, P9, P11, P12, P22, P91 lossis P92 yeeb nkab, ASTM A213 T11, T22, T91 lossis T92 boiler raj, ASTM A691 EFW Chrome Moly yeeb nkab, los yogEN 10216-2 Cr-Mo seamless raj?

Xa koj cov kev xav tau lossis qhov project MTO rau Dongmeng Group.

Peb tuaj yeem tshuaj xyuas:

Standard · Qib · Loj · Phab Ntsa Thickness · Quantity · Inspection · MTC · Processing · Delivery

Xi'an Dongmeng Group Co., Ltd.

Xov tooj: +86 157 6921 4734

WhatsApp pawg:Dong, +86 157 6921 4734

Email: office@dongmjd.com

Chaw Ua Haujlwm:Room 4107, Runfeng Building, Sanqiao Tshiab Street, Weiyang District, Xi'an City, Shaanxi Province

Thov Nqe · MTC Qauv · Qhov Muaj Ntau Yam · Kev Npaj Tshuaj Ntsuam Xyuas · Lub Sijhawm Xa Khoom

 

Xi'an Dongmeng Group Co., Ltd. yog ib qho ntawm chrome moly yeeb nkab (astm a335) manufacturers thiab lwm tus neeg nyob hauv Suav teb. Peb sov siab txais tos koj mus yuav los yog lag luam wholesale pheej yig chrome moly yeeb nkab (astm a335) hauv Tshuag ntawm no los ntawm peb lub hoobkas. Tag nrho cov khoom customized yog nrog cov khoom zoo thiab cov nqi sib tw. Rau cov qauv dawb, tiv tauj peb tam sim no.