DENGFENG WELDING -HJ431
Standard : GB/T5293-1999 F4A2-H08A F5A2-H08MnA
Equiv: AWS-A5.17 F6A2-EL12
HJ431 is a kind of fused glassy granulated flux, colored as red-brown to light-yellow, with high manganese and silicon but low fluoride, These are three types of grain size: mesh 8-14(that is 2.5-1.5mm), 8-40(that is 2.5-0.38mm) and 14-40(that is 1.5-0.38mm). Either alternating or direct current can be used while welding wire nust be connected with the positive electrode when direct current is used. With high-standard technology HJ431 has good welding performance.
When applied with welding wire such as H08A, H08MnA, H10Mn2 or H10MnSi, HJ431 can weld low carbon steel and some low alloy steel like 16Mn and 15MnV, as well as ships, boilers and low pressure vessels. And it can be used for electroslag welding and copper welding.
Chemical Compostion of HJ431(%)
Mechnaical properties of the deposited metal
Impact value AKV(-20°C)
1) The oil soil. mositure.iron rust and other foreign substances must be removed from the surface before welding.
2) The welding flux must be baked for 2 hours at the temperautre of 300-400°C before build-up welding.