3 inch steel pipe

      ASTM A53 RIGID GALVANIZED STEEL PIPE 3 1/2 INCH  Technique Longitudinal Electronic Resistance Welding(ERW) High Frequency Welding(HFW) Material Quality Steel Grade Q195 similar to a283 GR.B, 040a10, ss330, sphc Q235 similar to a283 GR.D, 080a15,CS type B Q345 similar to a737 GR.B, SS400, S235JR Material Type Available in cold rolled and hot rolled    

C max	Mn max	P max	S max
% 0.20	% 1.20	% 0.045	% 0.045

Tensile test			Bend test			Flattening test			Leak tightness test
T.strength Kgf/mm2 (N/mm2)	Yield point Kgf/mm2 (N/mm2)	Elongation %	Category	Angle of bending	Inside radius	Weld position	Weld point	Non-weld point
			Black pipe	180o	6 D	90o	0.75 D	0.60 D
Min. 28 (285)	Min. 20 (196)	Min. 30	Galva. pipe	90o	8 D				51 Kgf/cm2

Remark: D: Outside diameter

		Tolerance
Weight		- 8%	+ 10%
Thickness	- Light -Medium, heavy	-8% -10%	not specified not specified
Length		-0 mm	+ 30 mm