Product and Service
Contact Us
Home >> Carbon steel series >>  Carbon steel pipe/tube
ERW Square Welded Steel Pipe

Product Description

ERW Square Welded Steel Pipe

Application: construction,Steel structure, Road sign,Steel frame,light industry,automobile industry, agriculture, etc.

Mechanical character & Chemical element of normal material:
 

Material
Chemical
Composition
(%)
Q195 C Mn Si S P
 
0.06-0.12 0.25-0.50 ≤0.30 ≤0.050 ≤0.045
 
Tensile strength: 315-430(Mpa)
Yield strength:195(Mpa)
Elongation:33
Q235 C Mn Si S P
 
0.12-2.0 0.3-0.70 ≤0.30 ≤0.045 ≤0.045
 
Tensile strength: 375-460(Mpa)
Yield strength:235(Mpa)
Elongation:26
Q345 C Mn Si S P V
≤0.20 ≤1.70 ≤0.55 ≤0.040 ≤0.040 0.02-0.15
Tensile strength: 470-630(Mpa)
Yield strength:345(Mpa)
Elongation:21