ASME SA387 GR.22 CL2 Boiler thiab Pressure Vessel Steel phaj

SA 387 GR.22 CL.2 PLATE muaj chromium ntawm 2.25% thiab molybdenum ntawm 1% thiab muaj peev xwm ua haujlwm hauv 600 Deg C qhov kub thiab txias ib puag ncig zoo. Cov molybdenum thiab chromium steel daim hlau ua haujlwm zoo ntawm qhov kub sib txawv txuas ntxiv muab kev ua tau zoo tshaj plaws. Qhov sib ntxiv ntawm molybdenum hauv SA 387 alloy yog ua kom lub zog tensile ntawm daim hlau ntawm qhov kub ntau dua. Tsis tas li ntawd, nws muab kev tiv thaiv corrosion zoo heev thiab oxidation zoo li los ntawm kev ua kom cov kab lattice. Qhov no ua tau zoo txwv tsis pub tus neeg sawv cev corrosive los ntawm cov hlau yaj thiab muab cov cua sov ua kom muaj peev xwm zoo thiab dhau los ua qhov kev xaiv zoo rau cov pa roj ib puag ncig. Tsis tas li ntawd, nws muaj qhov zoo weldability. Yog li, lub phaj no yog xav tau heev thoob ntiaj teb.

SA387 Gr.22 CL.2 Chemical Composition
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Cr	Mo
SA387 Gr.22 Cl.2	0.04-0.15	0.50	0.30-0.60	0.035	0.035	1.88-2.62	0.85-1.15

Qib	SA387 Gr.22 CL.2 Cov Khoom Siv Hluav Taws Xob
	Thickness	Yield	Tensile	Elongation
SA387 Gr.22 Cl.2	mm	Min Mpa	Mpa	Min %
	t 50	310	515-690	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]