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Golden Bridge

Golden Bridge F9AZ-EF1-F1 (JQ-SJ121T) Welding Flux

Golden Bridge F9AZ-EF1-F1 (JQ-SJ121T) Welding Flux

SKU:SJ121T-0055

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JQ-SJ121T




JQ-SJ121T is a fluorine-alkali type sintered flux, which has excellent welding performance with smooth arc, effortless slag removal ability and optimal bead appearance.



Working with proper welding wire (such as JQ-WEF1), the product is applicable for welding base metal with tensile strength of 620MPa, such as WB36 and HY80, and it is mainly used in the fields such as pressure vessels and thermal power.

Chemical components of sintered flux (%)

Item
SiO2+TiO2
Al2O3+MnO
CaF2
S
P
Example value 28-35 36-45 27-32 0.033 0.037
 

Mechanical properties of deposited metal (620℃x4h heat treatment)

ItemCombined welding wire
Rm
(MPa)
ReL/Rp0.2
(MPa)
A
(%)
KV2 (J)
0℃
JQ-WEF1 Example value 685 580 24 120
 




1. The welding-flux must be baked at 300-350℃ for 2 hours before use.
2. Impurities such as rust, oil stain and moisture must be removed from the work piece before welding.