Fused Welding Flux for Steel Structure (hj431)

Model NO.: hj431 Welding Flux pH: Acidic Melting Point: >600℃ Function: Protect Weld Metal Manufacturing Method: Smelted Color: Red Brown,Light Yellow Current: AC or DC Payment: Tt or LC Packings: Paper Bag or Pallet Weld: Ship,Boiler Specification: hj431 state: Solid Type: Inorganic Chemical Composition: SiO₂=10%-30% Application: Submerged-arc Welding Kind: Fused Welding Flux Grain Size: 8-40meshes Suitable: Low Carbon Low Alloy Steel Delivery: 15-20 Days Port: Qingdao Trademark: trustworthy Origin: Shandong China Submerged arc welding flux hj431

 

Fit	GB/T5293-1999	F4A3-H08A	F5A2-H08MnA
Equivalent to	AWS-A5.17	F6A2-EL12	F7A3-EM12K

1.it is a kind of high manganese and silicon, low fluorine fused welding 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).

welding flux 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.the welding 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 (-20ºC)(J)
Common results	≥400	≥550	≥22	≥34

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