ASTM A135 Gr.B ERW Pipes

Resistance welded pipe is a steel pipe that is welded by applying pressure through electrodes after the welding parts are assembled, and using resistance heat generated by current passing through the contact surface of the joint and adjacent areas.

ASTM A135 Specification

Material:	ASTM A135 GRA GRB	Type:	Electric-Resistance-Welded Steel Pipe
Outer Diameter:	5 - 420 Mm	Production Technology:	Cold Draw/Cold Rolled/Hot Rolled
Surface Treatment:	Black Varnish Painted,oil Painted,Galvanized	Alloy Or Not:	Not Alloy

Chemical Composition of ASTM A135 ERW Pipe

Element	Composition, max, %
	Grade A	Grade B
C	0.25	0.30
Mn	0.95	1.20
P	0.035	0.035
S	0.035	0.035

Mechanical Property of ASTM A135 Welded Pipe

ASTM A135	Grade A	Grade B
Tensile Strength, min, ksi [MPa]	48 [330]	60 [415]
Yield Strength, min, ksi [MPa]	30 [205]	35 [240]
Elongation, min, %	35	30

Tubing Wall Thickness Tolerance Table

Nominal Wall Thickness		Nominal OD Through 22mm ±mm		Nominal OD 22-48mm ±mm		Nominal OD 48-100mm ±mm
0.89		0.05/0.05		0.05/0.05		0.05/0.05
1.00		0.05/0.05		0.05/0.08		0.05/0.08
1.25		0.05/0.05		0.05/0.08		0.05/0.08
1.50		0.05/0.05		0.05/0.08		0.05/0.08
1.65		0.05/0.05		0.05/0.08		0.05/0.08
2.00		0.05/0.05		0.05/0.08		0.05/0.08
2.11		0.05/0.05		0.05/0.08		0.05/0.08
2.410		0.05/0.05		0.05/0.08		0.08/0.08
2.500		0.05/0.08		0.05/0.10		0.08/0.08
2.770		0.05/0.08		0.05/0.10		0.08/0.08
3.000		0.05/0.08		0.05/0.10		0.08/0.08
3.050		0.05/0.08		0.05/0.10		0.08/0.08
3.40		-		0.05/0.10		0.08/0.08
3.75		-		0.05/0.10		0.08/0.08
4.00		-		0.08/0.10		0.08/0.10
4.19		-		0.08/0.10		0.08/0.10
4.57		-		0.10/0.10		0.08/0.13
5.00		-		0.10/0.13		0.10/0.13

A135 ERW Steel Pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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