ASTM A572

ASTM A572: American Society for Testing and Materials
High-Strength Low-Alloy Columbium-Vanadium Structural Steel
Application: Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

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ASTM A572: American Society for Testing and Materials
High-Strength Low-Alloy Columbium-Vanadium Structural Steel
Application: Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

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产品分类: 合金钢管不锈钢管无缝碳钢管焊接碳钢管打桩管管件法兰涂层管和管 CRA复合和内衬钢管 OCTG和钻杆管道绕线阀门和压力容器

: 石化海上应用油气管道锅炉＆容器 EPC包（配件＆法兰）

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Chemical Requirements
Grade	Composition %
	C max	Mn max	P max	S max	Si		Others
	C max	Mn max	P max	S max	plates<=1 1/2	plates>1 1/2
42	0.21	1.35	0.04	0.05	0.4max	0.15–0.40	…
50	0.23	1.35	0.04	0.05	0.4max	0.15–0.40	…
55	0.25	1.35	0.04	0.05	0.4max	0.15–0.40	…
60	0.26	1.35	0.04	0.05	0.4max	…	…
65	0.23	1.65	0.04	0.05	0.4max	…	…

Mechanical Properties
Grade
	42	50	55	60	65
Tensile strength,min:
ksi	60	65	70	75	80
Mpa	415	450	485	520	550
Yield strength,min:
ksi	42	50	55	60	65
MPa	290	345	380	415	450

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ASTM A572

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