A53 Welded Carbon Steel Tube Black Painted ASTM ERW Pipe with 235-630 MPa Tensile Strength and ≤3% Ovality Rate
A53 welded carbon steel tube with black painted finish, manufactured to ASTM standards using Electric Resistance Welding (ERW) process. Available in hollow section carbon square tube configurations.
| Material | C | Si | Mn | P | S | Yield Strength (MPa) | Tensile Strength (MPa) |
|---|---|---|---|---|---|---|---|
| Q195 | 0.06-0.12 | 0.3 | 0.25-0.5 | <0.05 | <0.045 | 195 | 315-390 |
| Q235 | 0.14-0.22 | 0.3 | 0.3-0.8 | <0.05 | <0.045 | 235 | 375-460 |
| Q345 | <0.20 | <0.55 | 1.0-1.6 | <0.045 | <0.045 | 345 | 470-630 |
- Laser cutting technology for precise dimensions
- Excellent perpendicularity with no bevel
- Superior bending technology with out-of-roundness rate ≤ 3%
- Minimal thinning rate ≤ 15% during bending processes
Our products undergo 16+ quality control processes with third-party inspection reports. Professional quality inspection ensures accurate specifications and sufficient weight.
Ideal for structural applications, construction projects, industrial machinery, and various engineering applications requiring durable carbon steel tubing.
Weifang Wilda Machinery Co., Ltd., established in 2003, specializes in high-precision galvanized welded steel pipes. Capable of producing round, square, and custom-shaped steel pipes with comprehensive manufacturing facilities including sheet metal processing, welding, and surface treatment workshops.
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