ASTM A333

ASTM A333: American Society for Testing and Materials
Seamless Steel Pipe for Low-Temperature Service
Application: Oil, Gas and water delivery; Refinery, Boiler and Mechanical equipment manufacturer; structure construction; drilling, ship building and etc.

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ASTM A333: American Society for Testing and Materials
Seamless Steel Pipe for Low-Temperature Service
Application: Oil, Gas and water delivery; Refinery, Boiler and Mechanical equipment manufacturer; structure construction; drilling, ship building 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, %
Grade	C max	Mn	P max	S max	Si	Cr	Mo max	Others
1	0.3	0.40–1.06	0.025	0.025	…	...	...	...
3	0.19	0.31–0.64	0.025	0.025	0.18–0.37	…	...	...
4	0.12	0.50–1.05	0.025	0.025	0.08–0.37	0.44–1.01	...	...
6	0.3	0.29–1.06	0.025	0.025	0.10 min	0.30 max	0.12	...
7	0.19	0.90 max	0.025	0.025	0.13–0.32	…	…	...
8	0.13	0.90 max	0.025	0.025	0.13–0.32	…	...	...
9	0.2	0.40–1.06	0.025	0.025	…	…	...	...
10	0.2	1.15–1.50	0.035	0.015	0.10–0.35	0.15 max	0.05	...
11	0.1	0.60 max	0.025	0.025	0.35 max	0.50 max	0.50 max	...

Mechanical Properties
Grade
	1	3	4	6	7	8	9	10	11
Tensile strength, min:
ksi	55	65	60	60	65	100	63	80	65
Mpa	380	450	415	415	450	690	435	550	450
Yield strength, min:
ksi	30	35	35	35	35	75	46	65	35
MPa	205	240	240	240	240	515	315	450	240

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ASTM A333

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