SA387 GR.21 CL1 Siab lub nkoj steel phaj

ASTM A387 Gr 21 CL 1 yog ib qho chromium molybdenum alloy steel phaj tsim feem ntau rau welded boiler thiab siab hlab ntsha tsim los ntawm kev kub siab. Cov ntsiab lus Cr 3.00% thiab Mo cov ntsiab lus 1.00%. Txhua qib tshwj tsis yog qib 21L, Qib 22L, Qib 91 thiab Qib 911 muaj nyob rau hauv ob chav kawm ntawm tensile zog theem.ASTM A387 Qib 5 Qib 1 - Alloy steelASTM A387 Qib 5 Qib 1 A zoo siab ASTM A387 GRADE 5 molybdenum Class 1 lossis alloy steel phaj npaj tshwj xeeb rau kev siv hauv weldable carbon steel siab hlab ntsha ntawm qhov kub siab. Ntxiv molybdenum muab cov khoom kub tensile zog thiab chromium muab kev txhim kho corrosion kuj.ASTM A387 Qib 11 Chav Kawm 1 steel phaj rau siab somalia a387 qib 5 class1ASTM A387 Qib 11 Chav Kawm 1 yog nyob rau hauv tus qauv ASTMA-387 SA-387M DeA3 . 11Class 1 yog ib hom Cr-Mo-alloy steel daim hlau cov khoom siv los fabrics siab kub siab hlab ntsha.A387 muaj kaum qib los yog theem. Lawv yog qib 2, qib 12, qib 11, qib 22, qib 22L, qib 21, qib 21L, qib 5, qib 9, qib 91.

SA387 Gr.21L CL.1 Chemical Composition
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Cr	Mo
SA387 Gr.21L Cl.1	0.12	0.50	0.25-0.66	0.035	0.035	2.63-3.37	0.85-1.15

Qib	SA387 Gr.21L CL.1 Cov Khoom Siv Hluav Taws Xob
	Thickness	Yield	Tensile	Elongation
SA387 Gr.21L Cl.1	mm	Min Mpa	Mpa	Min %
	t 50	205	415-585	18
	50	-	-	-

Raws li cov qauv rau ASME SA387 Alloy Steel Phaj

ASME

• SA20 / A20M: Cov kev cai dav dav rau cov phaj siab siab.
• SA370: Kev ntsuas tshwj xeeb rau cov khoom siv hluav taws xob ntawm cov hlau
• SA435 / A435M: Rau ncaj-beam ultrasonic kuaj ntawm steel daim hlau
• SA577 / A577M: Rau ultrasonic lub kaum sab xis kuaj ntawm cov hlau phaj
• SA578 / A578M: ​​Rau txoj kab ncaj nraim UT kev tshuaj xyuas ntawm cov hlau phaj hauv cov ntawv tshwj xeeb
• SA1017/A1017M: Specification rau siab vessle daim hlau ntawm hlau alloy, chromium-molybdenum-tungsten

AWS Specification

• A5.5 / A5.5M: Tsawg alloy steel electrodes rau shield hlau arc vuam.
• A5.23 / A5.23M: Tsawg alloy steel electrodes rau fulxes rau submerged arc vuam.
• A5.28 / A5.28M: Rau roj shielded arc vuam
• A5.29 / A5.29M: Rau flux cored arc vuam.

Kev kho cua sov rau SA387 Chrom Moly Alloy Steel Phaj

Chrome moly alloy steel phaj nyob rau hauv ASME SA387 yuav tsum raug tua hlau, nrog thermally kho los ntawm annealing, normarlizing thiab tempering. Los yog nyob rau hauv cov ntaub ntawv pom zoo los ntawm buyer, ceev ceev txias los ntawm lub austenitizing kub los ntawm huab cua blasting los yog kua quenching, ua raws li los ntawm tempering, yam tsawg kawg nkaus tempering kub yuav tsum tau raws li hauv qab no cov lus:

Qib	Kub, ° F [° C]
2, 12 thiab 11	1150 [620]
22, 22L, 21, 21L thiab 9	1250 [675]
5	1300 [705]