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Qingdao Yingli Machinery Co., Ltd.
Company Address: High-Tech Industrial Park, Laoshan,Qingdao,China
E-mail: info@yinglimachinery.com
Zip/Postal Code: 266000
Tel Number: 86-532-88910996
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WYL tells you how to deal with 304 stainless steel tube surface blackened?
Time:2023-03-28 12:31:30    Author:yingli


If the inner and outer surfaces of 304 stainless steel tubes are black, there are three ways to avoid this: 
1. Improve the purity of argon used for welding 304 stainless steel tube into pure argon. 
2. Argon gas should be used to protect the back. 
3. Use a backside protector on the back, which is a protector that can save argon gas. 

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