Agglomerated Welding Fluxes for Steel Structure

Model NO.: sj301 pH: Neutral Melting Point: >600℃ Function: Protect Weld Metal Manufacturing Method: Agglomerted Grain Size: 10-40 Meshes Current: AC or DC Payment: Tt or LC Packings: Woven Bag,Paper Bag or Pallets Welding Seam: Very Good Specification: sj301 state: Solid Type: Inorganic Chemical Composition: SiO₂=10%-30% Application: Submerged-arc Welding Kind: Agglomerated Flux Basicity: 1-1.1 Applications: LPG Cylinder,Pipeline Delvery Time: 15-20 Days Port: Qingdao Trademark: trustworthy Origin: Shandong China Submerged arc Welding Flux sj301

Standard conforming to: 
GB/T5293 F4A0-H08A F5A0-H08MnA
Standard equivalent to: 
AWS-A5.17 F6A0-EL12 F7A0-EM12K
DIN BSC 198AC10SKM
 Description: 
1. SJ301is a kind of silicon-calcium-type sintered flux.  2. Grain size: 10-40(2.0-0.45mm) meshes.  3. Basicity of 1.0-1.1.  4. Either alternating or direct current can be used(welding wires must be connected with the positive electrode when direct current is used).  5. Performance: Fine detachability and fine appearance of weld. 

Usage: 
1. For the submerge-arc welding of low-carbon, low-alloy steels, and thin steel sheets(fast single-way and double-surface welding).  2. For liquefied gas storage tanks, gas bottles and pipeline steels. 
  Cautions: 
1. The oil soil, moisture, iron and other foreign substances must be removed from the welding joint. 
2. It is better to use direct current. 
3. The welding flux must be baked under 300-350ºC for 2 hours.  Chemical Compositions: 

SiO2+TiO2	Al2O3+MnO	CaO+MgO	CaF2	S	P
25~35	25~30	20~30	5~10	≤0.05	≤0.05

Mechanical Performance of the Deposited Metal: 

Wires	Standard Models	6s (Mpa)	6b (Mpa)	Δ5	Akv (J)
HO8A	F4A2-HO8A	≥350	≥420	≥22%	≥27(-20°C)
HO8MnA	F5A4-HO8MnA	≥410	≥500	≥22%	≥27(-20°C)

 

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