- Contact Person : Mr. Shang Qingfeng
- Company Name : Laiwu Huifeng Welding Industry Co., Ltd.
- Tel : 86-634-8856786
- Fax : 86-634-8856718
- Address : Shandong,Laiwu,No.016 Yun Taishan Road, Economic Development Zone
- Country/Region : China
- Zip : 271100
Welding Flux JN-HJ431 For boiler
Fit | GB/T5293-1999 | F4A3-H08A | F5A2-H08MnA |
Equivalent to | AWS-A5.17 | F6A2-EL12 | F7A3-EM12K |
1.JN-HJ431 is a kind of high manganese and silicon, low fluorine fused flux
2.Color:red brown to light yellow
3.Grain size:of 8-40(2.5-0.45mm) and 14-40(1.5-0.45mm) meshes
4.Current:alternating or direct current(welding wires must be connected with the positive electrode when direct current is used)
Usage:1.for low-carbon and low-alloy steels like 16Mn and 15MnV, as well as ships, boilers and high-pressure vessels[applied to welding wires such as H08A(AWS EL8), H08MnA(AWS EM12) and H10MnSi(AWS EM13K)] 2.for electro-slag and copper welding.Cautions:1.The oil stain, moisture, iron rust and other impurities must be removed from the surface;2.Flux must be baked under 250~300°C for 2 hours before welding.Chemical Composition:(%)
AL2O3 +MnO | CaO+MgO | SiO2 | CaF2 | FeO | S ,P |
35~44 | 8~13 | 40~44 | 3~8 | ≤ 1.8 | ≤ 0.05 |
Mechanical Performance:Applied to H08A (AWS EL8)
Test item | Yield strength 6s (Mpa) | Tensile strength 6b (Mpa) | Elongation δ5(%) | Impact absorption rate Akv (-20°C)(J) |
Common results | ≥400 | ≥550 | ≥22 | ≥34 |
Welding Flux JN-HJ431 For boiler