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Welding Rods for Pressure Vessels->All->TY·SJ301 |
| TY·SJ301 |
Description:
TY-SJ301 is a kind of silicon-calcium-type sintered flux,mesh 10-40(2.0-0.45mm) and basicity -- 1.0-1.1. Either alternating or direct current can be used,but welding wires must be connected with the positive electrode when direct current is used.The welding technology has good performance,fine detachability and fine appearance of weld.
Usage:
The flux is fit for the submerge-arc welding of low-carbon steel and low-alloy steel,as well as the fast single-way and double-surface welding of thin steel sheet.And it is usually used for the submerge-arc welding of liquefied gas storage tanks,gas bottles and pipeline steel.
Cautione:
1.The oil soil,moisture,iron rust and other foreign substances must be removed from the welding joint.
2.The welking flux must be baked under 300-350℃ for 2 hours.
3.It’s better to use direct current.
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SiO2+TiO2 |
Al2O3+MnO |
CaO+MgO |
CaF2 |
S |
P |
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30～40 |
25～30 |
20～30 |
5～13 |
≤0.05 |
≤0.05 |
(Mechanical Performance of the Deposited Metal):
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配用焊丝
Wires |
标准型号
Standard Models |
屈服强度бs
(Mpa) |
抗拉强度бb
(Mpa) |
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冲击功Akv
(J) |
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HO8A
HO8MnA
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F4A2-HO8A
F5A4-HO8MnA
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≥350
≥410 |
≥420
≥500 |
≥22%
≥22% |
≥27(-20℃)
≥27(-40℃) |
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