ASTM A387 Gr.22 CL2 Kub Rolled Steel Phaj Properties

ASTM A387 Gr.22 CL2 Hot Rolled Steel Plate

Hauv ASTM A387 specification, Qib 11 (1.25Cr-0.5Mo) thiab Qib 22 (2.25Cr-1Mo) yog ob qib uas tau teev tseg ntau tshaj plaws. Txawm li cas los xij, ntau tus kws tshaj lij kev muag khoom tsis paub txog tias thaum tus qauv tsim kub tshaj 450 degreehauv kev pabcuam hydrogen, Qib 11 nce mus txog nws txoj haujlwm txwv rauHTHA (High -Tsub Hydrogen Attack) tsis kam, yuav tsum tau hloov mus rau Qib 22. Xaiv cov qib tsis raug tuaj yeem ua rau cov cuab yeej siv tau lub neej zoo tshaj plaws,los yog ua rau muaj kev puas tsuaj rau kev nyab xeeb tsis ua tiav qhov phem tshaj.

ASTM A387 Qib 22 Chav Kawm 2yog chromium -molybdenum alloy steel engineeredrau elevated -kub siab lub nkoj siv. Featuring 2.25% chromium thiab 1% molybdenum, ASTM A387 Gr.22 CL2 siab nkoj phaj xa cov kev pabcuam kub txog 600 degree. Yog li ntawd, peb daim hlau muab kev tiv thaiv corrosion thiab oxidation zoo nyob rau hauv siab - kev ntxhov siab. Peb cov Gr.22 steel phaj tuaj yeem muab rau hauv ntau hom khoom, nrog rau cov phaj hnyav, kub- dov coils, blanks, thiab kev cai profile txiav rau flanges, hau hau, thiab nplhaib. GNEE Steel tuav cov khoom lag luam zoo ntawm A387 Gr.22 CL2 daim hlau hla ntau qhov ntev thiab tuab, npaj rau kev faib thoob ntiaj teb.

Khoom npe	ASTM A387 Gr.22 CL2 Kub Rolled Carbon Steel Phaj
Khoom siv	ASTM A387 Gr.22 CL2
Specification	Dav: 500-2000mm Ntev: 1000-12000mm Thickness: 3 hli --- 16 hli
Pob	Txheem seaworthy pob (ntoo crate pob thiab lwm pob los yog raws li koj xav tau)
Txuj	ASTM A 387 Cov khoom lag luam
Lub sij hawm xa tuaj	A.7 hnub yog tias cov khoom no nyob hauv Tshuag.B.20 hnub yog tias cov khoom no yuav raug tsim tom qab kev txiav txim

A387 / SA387 Qib 22	Chav kawm 2
Tensile zog (ksi)	75-100
Tensile zog (MPa)	515-690
Yield zog (ksi)	45
Yield zog (MPa)	310
Elongation hauv 200mm (%)	–
Elongation hauv 50mm (%)	18
Txo thaj tsam hauv%	45

Qib	C	Mn	P	S	Si	Cr	Mo
A 387 gr . 22	0.04 – 0.15	0.25 – 0.66	0.035	0.035	0.5 max	1.88 – 2.62	0.85 – 1.15

ASTM/ASME	BS	EN	DIN
A387-22-2	622-515B	10 ZPO 910	10 ZPO 910

Nominal thickness	Qhov siab tshaj plaws thickness sib txawv nyob rau hauv ib lub phaj
	Nominal dav
	>2000 < 2500	>600 <2000	>2500 <3000	>3500 <4000	>3000 <3500	> 4000
>5 <8	0.9	0.9	1.0	-	1.0	-
>3 <5	0.9	0.8	0.9	-	-	-
>80 <150	1.4	1.3	1.5	1.6	1.5	1.7
>15 <25	1.1	1.0	1.2	1.3	1.2	1.4
>150 < 250	1.5	1.4	1.6	1.7	1.6	-

Qhov tshwj xeeb nce siab -kev ua haujlwm kub ntawm ASTM A387 Qib 22 Chav Kawm 2 hlau yog ntaus nqi rau nws cov txheej txheem 2.25Cr-1.0Mo alloy. Nrog cov ntsiab lus chromium ntawm 2.00-2.50% thiab molybdenum cov ntsiab lus ntawm 0.90-1.10% (tag nrho ua raws li ASTM A387 / A387M specification), cov hlau no muaj kev tiv thaiv oxidation zoo dua, nkag siab zog, thiab microstructural stability piv rauleaner{0}} alloyCr-Mo steels, xws li Qib 11.

Peb ASTM A387 Gr. 22 Cl. 2 daim hlau feem ntau tau teev tseg rau kev pabcuam txuas ntxiv hauv qhov kub ntawm 350℃txog 550℃. Thaum luv - lub sij hawm raug mus txog kwv yees li 600℃tej zaum yuav tso cai, lubQhov siab tshaj plaws siv kub txwvyuav tsum ua raws li cov kev cai uas tau teev tseg hauv ASME BPVC (Boiler thiab Pressure Vessel Code), Tshooj II, Ntu D.

Lub siab -kub khoom ntawm Qib 22 Chav Kawm 2 yog nyob ntawm qhov yuav tsum tau Normalized thiab Tempered (N+T) kev xa khoomxav taulos ntawm ASTM A387 tus qauv. Kev kho cua sov kom zoo ua kom zoo dua cov microstructure thiab txhawb nqa nag lossis daus ntawm cov chromium ruaj khov-molybdenum carbides, yog li txhim kho kev nkag siab- tawg tsis kam, toughness, thiab ntev - kev pabcuam kev ntseeg tau.

Ntawm GNEE Steel, tag nrho cov hlau phaj muab raws li ASTM A387 Gr. 22 Chav Kawm 2 yog tsim los siv cov txheej txheem kev kho cua sov kom nruj. Cov khoom siv tau raug txheeb xyuas los ntawm kev ntsuam xyuas tensile, kev ntsuam xyuas qhov cuam tshuam (qhov twg tau teev tseg), thiab kev tshuaj xyuas zoo ua raws li ASTM A387 thiab ASTM A20 cov qauv. Peb kuj tuaj yeem muab tauEN 10204 3.1/3.2 ntawv pov thawj, Thaum tshav kub kub-cov ntaub ntawv kho mob thiab thib peb- kev soj ntsuam tog (SGS, TÜV, BV) kom paub meej cov khoom siv tag nrho rau kev ua haujlwm tseem ceeb ntawm cov hlab ntsha.

ASTM A387 Gr. 22 Cl. 2 certificate

Hu rau tam sim no

Cov khoom sib piv	ASTM A387 Gr.22 Chav Kawm 2	ASTM A387 Gr.11 Chav Kawm 2	ASTM A387 Qib 91
Nominal Cr Cov ntsiab lus	~2.25%	~1.25%	~9.0%
Nominal Mo Cov ntsiab lus	~1.00%	~0.50%	~1.0% + V, Nb
Yam tsawg kawg nkaus Yield Strength	310 MPa	310 MPa	415 MPa rau
Tensile zog	515-690 MPa	515-690 MPa	585-760 MPa
Yam Kev Pab Cuam Siab Tshaj Plaws*	~ 600 degree	~ 550 degree	~ 650 degree
Creep Resistance	★★★★☆	★★★☆☆	★★★★★
Hydrogen Resistance	Zoo heev	Nruab nrab	Zoo heev
Tus nqi ntawm cov khoom siv txheeb ze	Nruab nrab	Tsawg	Siab

01/

Cov ntsiab lus Chromium siab dua (~ 2.25%)- Txhim kho qhov tseem ceebelevated -kub oxidation thiab corrosion kuj, xa premium-tier kev ua tau zoo ntawm qib 91 los ntawm ze li ob npaug ntawm cov ntsiab lus chromium ntawm Qib 11 (~1.25%).

02/

Cov ntsiab lus siab dua Molybdenum (~ 1.00%)- Txhawb nqa zoosiab - kub lub zog, creep tsis kam, thiab thermal stability, ua kom muaj kev ruaj ntseg zoo dua - lub sij hawm kev pab cuam kev cia siab los ntawm ob npaug rau cov ntsiab lus molybdenum piv rau Qib 11 (~0.50%).

03/

Ua haujlwm siab siab tshaj plaws (~ 600 degree)- nthuav davdaim ntawv thov ciam teb kom npog ntau qhov dav ntawm nruab nrab - mus rau - qhov kub thiab txias ua haujlwm los ntawm kev ua haujlwm kwv yees li 50℃siab dua Qib 11 (~ 550℃).

04/

Zoo heev Creep Resistance- Covdeb tshaj rau Qib 11, txo qis kev deformationnyob rau hauv ntev -lub sij hawm, siab - kub structural loads mus cuag cov cuab yeej tsim lub neej.

05/

Tus nqi tshwj xeeb -Kev ua tau zoo- Tswjkev sib tw heev nruab nrab -ntau tus nqi profile piv rau siab - tus nqi Qib 91, xa ib qho txiaj ntsig zoo duarau cov ntawv thov ua haujlwm qis dua 600 degree.

06/

Txhim kho Weldability thiab Fabricability- Muabib qho kev sib npaug ntawm cov chemistry piv rau Qib 91 (uas nta ~ 9.0% Cr ntxiv rau V/Nb micro-alloying). Qhov no ua rauqis dua weld cracking susceptibility thiab tswj tau ntau dua Post-Weld Heat Treatment (PWHT) parameters.

Petrochemical thiab Refining: ASTM A387 Gr.22 CL2 Hot Rolled Steel Plate applications

Hydrocracking Reactors
Catalytic Reformers
Coke Drums
Thermal Separators
Cov Nkoj Siab hauv Hydrogen Service

Kev tsim hluav taws xob:

Boiler Drums
Superheater Headers
Siab -Tsub Chav Piping
Industrial Kub Exchangers

Roj & Roj:

Siab -Kev sib cais siab (Onshore/Offshore)
LPG Cia Tank
Sour Service Piping

Kev ua tshuaj lom neeg:

Ammonia Synthesis Converters
Methanol Reactors
Sulfur Recovery Units (SRU)
High -Tub kub Exchangers

Cov Khoom Muag Muaj Ntau & Muaj peev xwm muab tau yooj yim
Peb ASTM A387 Gr. 22 Cl. 2 steel daim hlau muaj nyob rau hauv ntau yam ntawm thicknesses, dav, thiab ntev. Peb lav kev xa khoom sai rau tus qauv qhov ntev thiab muab kev cai dov raws li qhov yuav tsum tau ua ntawm qhov project.

Tus nqi Precision{0}}Kev Pabcuam Ntxiv
Txhawm rau txo cov sij hawm ua cov hmoov txhuas thiab txo cov nqi qis qis rau peb cov neeg siv khoom, peb muab cov kev pabcuam ua tiav nrog rau CNC oxy- roj txiav, plasma txiav, ntug npaj, beveling, drilling, phaj dov, thiab kev cai profile txiav.

Export-Qib Maritime Ntim
Txhua daim hlau hlau tau siv los ntawm xeb-cov txheej txheem tiv thaivthiab muaj kev ruaj ntseg nrog cov ntaub qhwv tsis muaj dej, hnyav- lub luag haujlwm steel strapping, thiab hiav txwv- tsim nyog ntoo crating / skidding kom ntseeg tau tias cov khoom lag luam siab tshaj plaws thaum hla dej hiav txwv thoob ntiaj teb.

Turnkey Sourcing Solutions
Tshaj li ASTM A387 Qib 22 Chav Kawm 2, GNEE Steel muab cov ntaub ntawv ua tiav ntawm cov phaj siab siab- suav nrog ASTM A387 Qib 11, Qib 5, Qib 9, nrog rau ASTM A516 thiab ASTM A537-ua kom cov neeg siv khoom siv tau yooj yim rau lawv cov saw hlau thiab txhim kho tag nrho cov nqi yuav khoom.

ASTM A387 Gr.22 CL2 Hot Rolled Steel Plate service

Koj puas xav tau cov khoom lag luam customized? GNEE Steel muaj ib qho - nres kev pabcuam xws li los ntawm raw phaj mov mus rau CNC txiav, ntug beveling, kev kho cua sov, kuaj ultrasonic (UT), thib peb- tshuaj xyuas tog (SGS/BV/TÜV), thiab thoob ntiaj teb logistics. Zoo siab txais tos koj tuaj yeem nqa koj cov duab kos rau kev sab laj kom tau txais cov lus qhia ceev.

Tau Txais Daim Ntawv Tso Cai Dawb

Q: Dab tsi yog qhov kev pabcuam kub rau A387 Gr. 22?

A: ASTM A387 Gr. 22 yog cov hlau alloy feem ntau tsim los rau siab kub. Nws qhov kev pabcuam kub ib txwm nyob ntawm 316℃txog 593℃(600℃F txog 1100℃F), nrog rau cov peev txheej tshwj xeeb nyob ntawm cov chav kawm thiab cov muaj pes tsawg leeg.

Q: Qhov txawv ntawm A387 Gr. 22 Chav Kawm 1 thiab Chav Kawm 2 yog dab tsi?

A: Thaum ASTM A387 Qib 22 Chav Kawm 1 thiab Chav Kawm 2 qhia tib yam tshuaj muaj pes tsawg leeg (2.25% Chromium thiab 1.00% Molybdenum), qhov sib txawv tseem ceeb nyob hauv lawv cov khoom siv kho tshuab thiab kev kho cua sov. Chav Kawm 2 muaj qhov muaj zog tensile ntau dua thiab muaj zog tawm los, thaum Chav Kawm 1 muaj qhov zoo dua formability thiab weldability.

Q: Dab tsi yog qhov cuam tshuam toughness ntawm A387 Gr. 22?

A: Qhov cuam tshuam toughness ntawm ASTM A387 Qib 22 nyob ntawm nws qhov kev kho cua sov tshwj xeeb (Class 1 vs. Class 2) thiab ntsuas kub. Feem ntau, rau kev siv lub nkoj siab thiab boiler, Charpy V-notch (CVN) cuam tshuam lub zog rau qhov no 2.25% Cr - 1% Mo alloy steel feem ntau Ntau dua lossis sib npaug rau 27 J ntawm chav sov thiab Ntau dua lossis sib npaug li 20 J ntawm 0℃.

Q: Puas yog A387 Gr. 22 yooj yim rau vuam?

A: A387 Gr. 22 yog nruab nrab nyuaj rau vuam. Vim tias nws yog chromium-molybdenum (chrome-moly) alloy steel, nws muaj kev cuam tshuam rau hydrogen-induced cracking thiab temper embrittlement. Kev vam meej vuam yuav tsum nruj preheating (feem ntau yog 150℃mus rau 250 degree) thiab yuav tsum tau Post-Weld Heat Treatment (PWHT) kom txo tau cov residual stresses thiab restore ductility.