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ASTM A106B ST37 Carbon Seamless Steel Pipe For Oil And Gas

2023-09-25

Fluid pipe is a steel pipe with a hollow section and no welds from beginning to end. Steel pipes are also an indispensable material for various conventional weapons. Gun barrels, barrels, etc. are all made of steel pipes. Steel pipes can be divided into round pipes and special-shaped pipes according to different cross-sectional area shapes. Since the circle area is the largest when the circumferences are equal, more fluid can be transported with circular tubes.

Specification

Standard	ASTM
Out diameter	21.3 - 610 mm or customized
Wall thickness	2 - 50 mm or customized
Section Shape	Round
Application	Fluid Pipe
Surface Treatment	varnished, cap, marking
Certification	API
Usage	Oil Gas Water Well
ST37/ST44 Precision Seamless Steel Pipe	DIN 2448/2391/1629/17100
DIN 2391/2448/1629,ST37/ST52 steel pipe	ST37/ST52
Hot Rolled Seamless Steel Pipe	ASTM A 53/106/API 5L B
Cold Drawn Seamless Steel Boiler Tube	ASTM A106/DIN 17175/2448
Technology	Hot Rolled Cold Rolled

Dimension Tolerances of Seamless Steel Pipe

Pipe types	Pipe Size(mm)		Tolerances
Hot rolled	OD	<50	±0.50mm
	OD	≥50	±1%
	WT	<4	±12.5%
		≥4～20	+15%, -12.5%
		>20	±12.5%
Cold drawn	OD	6～10	±0.20mm
		10～30	±0.40mm
		30～50	±0.45
		>50	±1%
	WT	<1	±0.15mm
		>1～3	+ 15%, – 10%
		>3	+ 12.5%, – 10%

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