Key points for welding stainless steel pipes, medical-grade stainless steel pipes – stainless steel pipes

17 Aug,2020

Key points for welding stainless steel pipes, medical-grade stainless steel pipes – stainless steel pipes

Precision Steel Pipe Recommendations Welding stainless steel pipes Key points:

1. Please use a power supply with a vertical external configuration, and when operating on DC, connect the positive terminal (the welding wire) to the negative terminal.

2. Generally applicable to 6mm In the following sheet‑metal welding, the welds exhibit an aesthetically pleasing appearance and minimal distortion.

3. The shielding gas is argon, with a purity of 99.99 %. The welding current is 50 ~ 50A At that time, the argon flow rate was 8 ~ 0 L/min , the welding current is 50 ~ 250A At that time, the argon flow rate was 2 ~ 5 L/min 。

4. The optimal length of the tungsten electrode protruding from the gas nozzle is 4 ~ 5mm , for areas with poor shielding, such as fillet welds, it is best to 2 ~ 3mm , for deep grooves it is best to be 5 ~ 6mm . The distance between the nozzle and the workpiece is generally no greater than 5mm。

5. To prevent weld porosity, any rust or oil on the workpiece must be thoroughly removed.

6. For the welding arc length, it is best to set it to when welding ordinary steel. 2 ~ 4mm , when welding stainless steel, it is best to ~ 3mm . If the duration is too long, the protective effect will be poor.

7. To prevent oxidation of the back side of the root weld, gas shielding is also required on the reverse side.

Welding stainless steel pipes

8. To ensure effective shielding of the weld pool by argon and facilitate welding operations, the centerline of the tungsten electrode should generally be kept aligned with the workpiece. 80 ~ 85 At an angle of °, the included angle between the welding wires should be maintained at 80-85 °. The surface area of the workpiece should be as small as possible, typically around 0 °.

9. Wind protection and ventilation. In windy areas, take measures to seal gaps in screens, while indoors, ensure adequate ventilation.

That concludes the information compiled by our editor on precision steel tubes. Please contact us if you have any inquiries. Wuxi Precision Steel Tube Co., Ltd. specializes in stainless steel tubing for ventilators. , Stainless steel tubes for food machinery , Seamless stainless steel pipe , Welding stainless steel pipes , Precision stainless steel tubes, welded stainless steel pipes, stainless steel pipes, medical-grade stainless steel tubes, and stainless steel tubes for water heaters, among others. Our company adheres to the development philosophy of “integrity, quality, innovation, and win-win,” upholding the business principle of “quality first, reputation paramount.” We share information and resources with our customers, striving for mutual success and delivering greater value. We extend our heartfelt gratitude to all our new and longstanding customers for their cooperation and support, and warmly welcome you to visit us, offer your guidance, and join us in building a brighter future together!

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