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Welding Consumables for Marine Projects->All->TY·HJ350
TY·HJ350

Description:
     HJ350 is a kind of smelting-type mid-Mn mid-Si and mid-F flux. It appears brown to light-yellow glassy particlse with the mesh of 8-40(25-0.45mm)and 14-40(1.5-0.45mm). During the course of welding,either direct-current or alternating-current main can be adopted,and welding wires are connected to the positive electrode when the former is adopted. Its welding performance is excellent.
Usage:
     is can be used in the welding of low-alloy steel(such as16Mn, 15MnV,15MnVN,etc) structures in conjunction with welding wires(such as H08MnA,H10Mn2,H08Mn2Mo,etc).It is widely used in the welding of ships,boilers,high-pressure vessels,etc.The flux with fine particle size can be used in the fine-wire submerge-arc welding of thinplate structures.
Cautions:

1.Impurities on the welding surface must be removed before welding,such as oil soil,moisture,iron rust,etc.
2.The flux must be baked for 2 hours under the temperature of 300-400℃ before it is used.


(Chemical Composition)(%)

SiO2
CaF2
Al2O3+MnO
CaO
FeO
S
P
30~35
14~20
27~37
10~18
≤1.0
≤0.06
≤0.07

(Mechanical Performance):
Tested Items
屈服强度бs
(Mpa)
抗拉强度бb
(MPa)
延伸率δ5
冲击功AKV(-20℃)
(J)
Common Results
≥330
≥415~550
≥22%
≥27
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