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Huazhong Aluminium brazing alloy ER4043
SPECIFICATIONS CLASSIFIICATIONS:
AWS A5.10 AWS ER4043
ASME SFA 5.10 UNS A94043
DESCRIPTION/APPLICATION
Huazhong Alloy ER4043 is a 5% silicon aluminium. This alloy is recommended for welding 3003, 3004, 5052, 6061, 6063 and casting alloys 43,335,356 and 214. Our aluminium brazing alloy ER4043 has a melting rang of 573-632°C and a density of .097 lbs./cu.in. The post anodizing color tint of the weld area is gray.
TYPICAL MACHANICAL PROPERTIES
Tensile strength: Above 160MPa
Yield strength: 125MPa
Elongation: 8%
Item Number | Equivalent Remark | Chemical Composition (%) | Temperature (°C) | Advantages and Usage | |||||||
National Mark | AWS | Al | Si | Cu | Mg | Zn | Other | Melting Point | Recommended Temp. | ||
HSALSi4 | S311 | ER4043 | Remain | 4-4.5 | 0.3 | 0.05 | 0.1 | <0.5 | 573-632 | 600-645 | 1.low melting point, good fluidity 2.Used for brazing aluminium and aluminium alloy of electric machine, appliance, refrigerator. |
It has good fluidity and excellent anti--thermal crack ability, but low ductility and toughness. After anodized, the 4043 filler metal would be grey, and grown dark than base metal.
When brazing 5000 series Al-Mg alloy with 4043, it is easy to form fragile Mg2Si compound, and make ductility and resistance lower. So it is not suitable for brazing al-Mg alloy. When brazing 6061-T6 aluminium alloy, the tensile strength would be 167 Mpa above.
Usage: boats and ships, motorcycle, chemical engineering, food, mould, house furnishings,container etc.
Caution:
1) Get rid of the oxide and grease spots on the surface of the brazing alloy, or bad integration will lead to defect of the blowhole and slag inclusion.
2) Sole plate could be used to prop the melting metal when brazing.
Package:
Producing Line:
MIG, TIG Brazing Welding Rod 4043 Aluminum Solder