TIANJIN GOLDEN BRIDGE WELDING MATERIALS GROUP CO.,LTD.
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JQ·MH321
天津市金桥焊材集团股份有限公司
JQ·MH321 is a submerged arc welding wire of ultra-low carbon 19Cr-10Ni-Ti austenitic stainless steel, which has excellent welding performance with optimal bead appearance and good crack resistance. The product is applicable for welding in corrosion-resistant service environment.
Working with special welding flux, the product is applicable for welding 07Cr19Ni11Ti, and is commonly used in the fields such as food and medical treatment, pressure vessel, petrochemical industry and so on.
Chemical components of welding wire (%)
Item | C | Mn | Si | Cr | Ni | Mo | P | S | Ti |
| Example value | 0.046 | 1.81 | 0.43 | 19.47 | 9.57 | — | 0.024 | 0.011 | 0.55 |
Mechanical properties of deposited metal
Test item | Rm (MPa) | A (%) |
| Example value | 578 | 36 |
Reference current (AC, DC+)
Diameter (mm) | Φ2.5 | Φ3.2 | Φ4.0 | Φ5.0 |
| Welding current(A) | 400-500 | 450-550 | 500-600 | 550-650 |
1. It is suggested that the temperature between gaps should be controlled at about 150℃. Pay attention to control the heat input when welding multi-gap and multi-layer in small and medium specifications.
2. The rust layer, moisture, oil stain, dust, etc. on the welding part shall be clearly removed.
3. The welding flux must be baked at 300-350℃ for 2 hours before use.
The above suggestions are for reference only, and specific operation should be made according to the onsite conditions. When necessary, conduct process evaluation before determining the welding scheme.
2. The rust layer, moisture, oil stain, dust, etc. on the welding part shall be clearly removed.
3. The welding flux must be baked at 300-350℃ for 2 hours before use.
The above suggestions are for reference only, and specific operation should be made according to the onsite conditions. When necessary, conduct process evaluation before determining the welding scheme.
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