ASTM A672

ASTM A672: American Society for Testing and Materials
Eletric- Fushion- Welded for High-Pressure Service at Moderate Temperatures
Application: Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

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Introduction
Description

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)
	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	...
C	55	0.18	0.20	0.22	0.24	0.26	0.55–0.98	0.55–1.30	0.035	0.035	0.13–0.45	...
	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
	B60	B65	B70	C55	C60	C65	C70
Tensile strength, min:
ksi	60	65	70	55	60	65	70
Mpa	415	450	485	380	415	450	485
Yield strength, min:
ksi	32	35	38	30	32	35	38
MPa	220	240	260	205	220	240	260

Elongation Requirements: As per standard

Available Dimension Range

OD(mm/inch)

Wall thickness(SCH)

STD

100

120

140

160

XXS

…100mm

21.3 (1/2'')

26.7 (3/4'')

33.4 (1'')

42.2 (1 1/4'')

48.3 (1 1/2'')

60.3 (2'')

73 (2 1/2'')

88.9 (3'')

101.6 (3 1/2'')

114.3 (4'')

141.3 (5'')

168.3 (6'')

219.1 (8'')

273 (10'')

323.8 (12'')

355.6 (14'')

406.4 (16'')

457 (18'')

508 (20'')

559 (22'')

610 (24'')

660 (26'')

711 (28'')

762 (30'')

813 (32'')

864 (34'')

914 (36'')

965.2 (38'')

1016 (40'')

*If the steel grades and size you are looking for are not listed above, please contact us for further information.

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