How to Check High-quality 304 Stainless Steel Pipe
There are a lot of 304 stainless steel pipes on the market, it wildely used in many filed, then how to choose the high-quality 304 stainless steel pipes? Here HCADTO will teach you about choose the high-quality 304 stainless steel pipe.
Generally, high-quality 304 stainless steel pipes have its characteristics:
1. Checking if there is "304" printed on the steel pipe, and ask for the quality certificate and quality guarantee.
2. Test with weak acid reagent, put them on steel pipe and check after 30 seconds, material 304 will not change color, and 201 will turn black.
3. Check the outer surface and inner wall of pipe to see if it is bright and smooth, whether the thickness is uniform, or rough etc..
4. When purchasing, choose famous-brand products assessed by the Bureau of Quality and Technical Supervision. Long-term use testimony and good reputation among customers are the most direct and effective way to find good supplier.