标准：

符合GB SAI1070

相当AWS ER1100

说明：

S301是含铝大于99.5%的纯铝焊丝。具有良好的可焊性和耐蚀性，以及优良的塑性及韧性，但强度较低。

S301 is pure aluminum welding wire with aluminum content greater than 99.5%. It has good weldability and corrosion resistance, as well as excellent plasticity and toughness, but low strength.

用途：

氩弧焊及氧-乙炔气焊焊接纯铝及对接头性能要求不高的铝合金作填充材料，广泛应用于化学工业铝制设备上。

Argon arc welding and oxygen-acetylene gas welding are used as filler materials for pure aluminum and aluminum alloys that do not require high joint performance. They are widely used in aluminum equipment in the chemical industry.

焊丝化学成分：

供应规格（mm）：

注意事项：

1. 焊前应严格清除工件焊接边缘和焊丝表面的氧化膜和油污等污物，否则会使焊缝产生熔合不良并引起气孔、夹渣等缺陷。

2. 为了保证焊透而又不导致塌陷，施焊时可采用垫板以托住熔化金属。

3. 氧-乙炔气焊时必须配铝气焊熔剂共同使用。

1. Strictly remove the oxide film and oil stains on the welding edge of the workpiece and the surface of the welding wire before welding, otherwise it will cause poor fusion of the weld and cause defects such as pores and slag inclusion.

2. In order to ensure penetration without causing collapse, a backing plate can be used to hold the molten metal during welding.

3. Oxygen-acetylene gas welding must be used together with aluminum gas welding flux.