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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Introduction
Description

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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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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