Stable electric arc, low splashing, high deposition efficiency and good welding seam, It can be welded automatically or semi-automatically.
Application: Low carbon steel and low alloy steel, rolling stock, container, Engineering machinery, and pressure container, etc.
| Type | Model GB | Chemical composition | |||||
| C | Mn | Si | S | P | other | ||
| THQ-50A | ER49-1 | 0.11 | 1.80/2.10 | 0.65/1.95 | 0.03 | 0.030 | Cu0.05 Ni030 Cr0.20 |
| THQ-50C | ER50-6 | 0.06/0.15 | 1.40/1.85 | 0.80/1.15 | 0.035 | 0.025 | Cu0.50 other 0.50 |
| Type | Model GB | Mechanical properties | |||
| Rel / Rp0.2 MPa |
Rm MPa |
A % |
A KV J | ||
| THQ-50A | ER49-1 | 372 | 490 | 20 | Normal temperature 47 |
| THQ-50C | ER50-6 | 420 | 500 | 22 | -30 o C 27 |
Chemical composition / Mechanical properties /Usage
| Type | Model GB | Usage |
| THQ-50A | ER49-1 | Used for welding low carbon steel and some key structures of low-alloy steel. |
| THQ-50C | ER50-6 | Used for welding low carbon steel and 50kgf/mm 2 grade of high-strength steel structures like vechiles,building,boat,bridge and etc.Can also be used for speed welding of sheet and pipes. |