ASTM A671

ASTM A671: American Society for Testing and Materials
Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
Application: Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

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ASTM A671: American Society for Testing and Materials
Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
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
Pipe	Grade	Composition %
Pipe	Grade	C max					Mn		P max	S max	Si	Others
		<=1in (25mm)	>1~2in (25~50mm)	>2~4in (50-100mm)	>4~8in (100~200mm)	>8in (200mm)	<=1/2in (12.5mm)	>1/2in (12.5mm)
CB	60	0.24	0.21	0.29	0.31	0.31	0.98max		0.035	0.035	0.13–0.45	...
	65	0.28	0.31	0.33	0.33	0.33	0.98max		0.035	0.035	0.13–0.45	...
	70	0.31	0.33	0.35	0.35	0.35	1.30max		0.035	0.035	0.13–0.45	...
CC	60	0.21	0.23	0.25	0.27	0.27	0.55–0.98	0.79–1.30	0.035	0.035	0.13–0.45	...
	65	0.24	0.26	0.28	0.29	0.29	0.79–1.30	0.79–1.30	0.035	0.035	0.13–0.45	...
	70	0.27	0.28	0.30	0.31	0.31	0.79–1.30	0.79–1.30	0.035	0.035	0.13–0.45	...

Mechanical Properties
Grade
	CB60	CB65	CB70	CC60	CC65	CC70
Tensile strength, min:
ksi	60	65	70	60	65	70
Mpa	415	450	485	415	450	485
Yield strength, min:
ksi	32	35	38	32	35	38
MPa	220	240	260	220	240	260

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ASTM A671

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