A302 GR.B Boiler Siab Vessel Steel

A302 GR.B Alloy Pressure Vessel Steel Phaj

A302 Qib B steel phaj tus qauv tshwj xeeb rau cov phaj siab siab hauv cov hlau hlau, manganese molybdenum thiab manganese-molybdenum-nickel. Cov phaj yuav raug txiav kom normalized los yog kev ntxhov siab, los yog ob qho tib si. Yog A 302 Qib B siab tshaj 50mm hauv thickness yuav tsum normalized.

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A302 GR.B Alloy Pressure Vessel Steel Phaj Nqe lus piav qhia: Chemical Composition thiab Mechanical Properties:

A302 GR.B Alloy Pressure Vessel Steel Phaj Nqe lus piav qhia:

Qhov kev qhia tshwj xeeb no suav nrog manganese-molybdenum thiab manganese-molybdenum-nickel alloy steel daim hlau npaj tshwj xeeb rau welded boilers thiab lwm cov hlab ntsha siab. ASTM A302 yog ib hom qis alloy steel specification npog 4 qib sib txawv (A, B, C, D), Qib C thiab D muaj cov tshuaj muaj pes tsawg leeg Ni, nrog tib lub thickness, yield thiab tensile zog ntawm Qib C yog tib yam ntawm Qib B, thaum elongation tus nqi ntawm qib C yog siab dua.Qhov kev qhia tshwj xeeb no suav nrog manganese-molybdenum thiab manganese-molybdenum-nickel alloy steel daim hlau npaj tshwj xeeb rau welded boilers thiab lwm cov hlab ntsha siab. ASTM A302 yog ib hom qis alloy steel specification npog 4 qib sib txawv (A, B, C, D), Qib C thiab D muaj cov tshuaj muaj pes tsawg leeg Ni, nrog tib lub thickness, yield thiab tensile zog ntawm Qib C yog tib yam ntawm Qib B, thaum elongation tus nqi ntawm qib C yog siab dua. Nws yog tsim rau siab Vessel, Boiler, Cia Tank thiab Kub Exchanger hauv Roj, Gas Project.
Thickness: 6mm-300mm,
Dav: 1500mm txog 4050mm,
Ntev: 3000mm txog 15000mm

Chemical Composition thiab Mechanical Properties:

ASTM A302 Qib B Chemical Composition
Qib	Cov ntsiab lus Max (%)
Qib	C	Si	Mn	P	S	Al	N
A302 Qib B	0.20-0.25	0.13–0.45 dr hab	1.07-1.62	0,035	0,035
	Nb	V	Ti	Cu	Cr	Ni	Mo
							0.41–0.64 Nws

Qib		ASTM A302 Qib B cov cuab yeej cuab tam
Qib	Thickness	Yield	Tensile	Elongation
A302 Qib B	mm	Min Mpa	Mpa	Min %
	6-50	345	550-690	18%
	50-200	345	550-690	15%