A841 Grades A Class 1

2023-05-17 18:35:39 來源：鋼鐵之家閱讀量：0

牌號	A841 Grades A Class 1
對應標準	ASTM A841/A841M-2017 通過熱機械控制工藝生產(chǎn)的壓力容器用鋼板 Steel Plates for Pressure Vessels, Produced by ThermoMechanical Control Process (TMCP)
歸類	合金鋼

A841 Grades A Class 1 化學元素成分含量(%)

	成分	C	Si	Mn ^①	P	S	Cr	Ni	Cu	Mo	V	Nb	Al ^②	更多
t≤40mm	最小值	-	0.15	0.7	-	-	-	-	-	-	-	-	0.02	Alt≥0.02或Als≥0.015
t≤40mm	最大值	0.2	0.5	1.35	0.03	0.03	0.25	0.25	0.35	0.08	0.06	0.03	-	Alt≥0.02或Als≥0.015

	成分	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Nb	Al ^②	更多
t＞40mm	最小值	-	0.15	1	-	-	-	-	-	-	-	-	0.02	Alt≥0.02或Als≥0.015
t＞40mm	最大值	0.2	0.5	1.6	0.03	0.03	0.25	0.25	0.35	0.08	0.06	0.03	-	Alt≥0.02或Als≥0.015

① Manganese may exceed 1.35 % on heat analysis, up to a maximum of 1.60 %, provided that the carbon equivalent on heat analysis does not exceed 0.47 %, or the value specified in Supplementary Requirement S77 when that requirement is invoked, when based on the following formula：
CE = C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15%
When this option is exercised, the manganese content on product analysis shall not exceed the heat analysis content by more than 0.12 percentage points.
② By agreement, the steel may be produced with titanium, in which case the minimum aluminum content shall not apply. When this option is exercised, the titanium content, by heat analysis, shall be .006 % to 0.02 %, and the actual titanium content shall be reported on the test report.

碳當量計算

A841 Grades A Class 1 機械性能

	抗拉強度 σ_b Mpa	屈服點 σ_s Mpa	斷后伸長率或延伸率 δ %
t≤65	485~620	≥345	(50mm) ≥22
t＞65	450~585	≥310	≥22

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A841 Grades A Class 1