Structural Tube

Seamless steel pipes for the manufacture of pipes, vessels, equipment, fittings and steel structures.

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Number of views:

1000

Product serial number

Specification Range:

∮6-1100×1-150mm

Use:

Seamless steel pipes for the manufacture of pipes, vessels, equipment, fittings and steel structures

Main Material:

GB/T8162 (10, 20, 35, 45, Q345, Q420, Q460, 27SiMn, 20Cr, 40Cr, 15CrMo, 20CrMo, 30CrMo, 35CrMo, 42CrMo, 12Cr1MoV) DIN 1629 (St37.0, St44.0, St52.0 ) EN 10210-1 (S355J2H, etc.) JIS G3445 (STKM series)

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Product description

Parameters

● Standard

GB/T8162-2009 Main steel grades: 10, 20, 35, 45, Q345

● Uses

For general and mechanical structures

● Size deviation

Steel Tube Types	Tube size mm		Allowable deviation
Steel Tube Types	Tube size mm		Common Grade	High Grade
Hot rolled tube	Outer diameter D	All	± 1% (minimum is ± 0.50mm)	—
Hot rolled tube	Wall thickness S	All	+15%-12.5% (minimum +0.45/ -0.40 mm)	—
Cold-drawn tube	Outer diameter D	6 ~ 10	± 0.20 mm	± 0.15 mm
		> 10 ~ 30	± 0.40 mm	± 0.20 mm
		> 30 ~ 50	± 0.45 mm	± 0.30 mm
		> 50	± 1%	± 0.8%
	Wall thickness S	≤ 1	± 0.15 mm	± 0.12 mm
		> 1 ~ 3	+15%-10%	+12.5%-10%
		＞ 3	+12.5%-10%	± 10%