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Home > ASTM > ASTM A-542/A-542M Q&T Mo-V alloy steel plates for pressure vessels

ASTM A-542/A-542M Q&T Mo-V alloy steel plates for pressure vessels

A542 in the standard ASTM A-542/A-542M is a kind of Mo-V alloy steel plates material used to fabric high temperature pressure vessels. ASTM A542 have Five grades or levels. They are : grade A, grade B, grade C, grade D, grade E . A542 need to be done the (Quenching + Tempering ) heat-treatment to meet the property requirement in the standard ASTM A-542/A-542M.

Standard: ASTM A-542/A-542M
Steel Grade : A542 GR A, A542 GR B, A542 GR C, A542 GR D, A542 GR E
Thickness :3mm -260mm
Width:1000mm-4000mm
Length :1000mm-18000mm
MOQ: 1 PC
Delivery time : 10-40 days (Production)
MTC: Available
Payment Term : T/T or L/C At sight .

ASTM A542 steel chemical composition : %

Composition		Grade A	Grade B	Grade C	Grade D	Grade E
C	Heat analyse	≤ 0.15	0.11~0.15	0.10~0.15	0.11~0.15	0.10~0.15
C	Product analyse	≤ 0.18 鈶�	0.09~0.18	0.08~0.18	0.09~0.18	0.06~0.18
Mn	Heat analyse	0.30~0.60	0.30~0.60	0.30~0.60	0.30~0.60	0.30~0.60
Mn	Product analyse	0.25~0.66	0.25~0.66	0.25~0.66	0.25~0.66	0.25~0.66
P ≤	Heat analyse	0.025	0.015	0.025	0.015	0.010
P ≤	Product analyse	0.025	0.015	0.025	0.020	0.010
S ≤	Heat analyse	0.025	0.015	0.025	0.010	0.010
S ≤	Product analyse	0.025	0.015	0.025	0.015	0.010
Si ≤	Heat analyse	0.50	0.50	0.13	0.010	0.15
Si ≤	Product analyse	0.50	0.50	0.13	0.013	0.15
Ni ≤	Heat analyse	0.40	0.25	0.25	0.25	0.25
Ni ≤	Product analyse	0.43	0.28	0.28	0.28	0.28
Cr	Heat analyse	2.00~2.50	2.00~2.50	2.75~3.25	2.00~2.50	2.75~3.25
Cr	Product analyse	1.88~2.62	1.88~2.62	2.63~3.37	1.08~2.62	2.63~3.37
Mo	Heat analyse	0.90~1.10	0.90~1.10	0.90~1.10	0.90~1.10	0.90~1.10
Mo	Product analyse	0.85~1.15	0.85~1.15	0.85~1.15	0.85~1.15	0.85~1.15
B	Heat analyse	-	-	0.001~0.003	0.0022	-
B	Product analyse	-	-	-	-	-
V	Heat analyse	≤ 0.03	≤ 0.02	0.20~0.30	0.25~0.354	0.20~0.30
V	Product analyse	≤ 0.04	≤ 0.03	0.18~0.33	0.23~0.37	0.18~0.33
Ti	Heat analyse	-	-	0.015~0.035	≤ 0.030	-
Ti	Product analyse	-	-	0.005~0.045	≤ 0.035	-
Ca		-	-	-	≤ 0.015	0.005~0.0015
Ca		-	-	-	≤ 0.020	-
Cu≤	Heat analyse	0.40	0.25	0.25	0.20	0.25
Cu≤	Product analyse	0.43	0.28	0.28	0.25	0.28
Nb	Heat analyse	-	-	-	≤ 0.07	0.015~0.070
Nb	Product analyse	-	-	-	≤ 0.08	0.010~0.075

Note : ① In A 542/A 542M-82 standard and the earlier standard, the steel plates whose thickness ≤ 125mm, C must be ≤ 0.15%
② Ca can be replace by REM as the agreement with manufacturer and buyer, if like this, then the total amount of REM should be stated

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