Product Description
Stainless steel pipes can be divided into Cr series (400 series), Cr-Ni series (300 series), Cr-Mn-Ni (200 series) and precipitation hardening series (600 series) according to the composition.
200 Series—Chromium-Nickel-Manganese Austenitic Stainless Steel 300 Series—Chromium-Nickel Austenitic Stainless Steel.
301-----Good ductility, used for molding products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel.
302-----The corrosion resistance is the same as 304, and the strength is better because of the relatively high carbon content.
303-----By adding a small amount of sulfur and phosphorus, it is easier to cut than 304.
304-----that is, 18/8 stainless steel. The GB grade is 0Cr18Ni9. 309—Compared with 304, it has better temperature resistance.
316-----After 304, the second most widely used steel grade is mainly used in the food industry, pharmaceutical industry and surgical equipment. Adding molybdenum element makes it obtain a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304 stainless steel pipes, it is also used
as "marine steel". SS316 is usually used in nuclear fuel recovery units. Grade 18/10 stainless steel pipe is also generally suitable for this application class.
Model 321—Similar to 304 except that the risk of material weld corrosion is reduced due to the addition of titanium.
Stainless steel welded pipe production process:
Raw material--slitting--welding pipe--repairing--polishing--inspection (printing)--packaging--shipping (warehousing) (decorative welded pipe).
Raw material--slitting--welding pipe--heat treatment--correction--straightening--end trimming--pickling--water pressure test--inspection (printing)-packaging--shipping (warehousing) (Welded pipes for industrial piping).
FAQ：
Q: What kind of work does your company do?
A: We are a business steel industry and trade. We mainly produces carbon steel plate/pipe/coil/round bars, etc.
Q: What are the advantages of your company?
A: (1): Prime quality and Competitive price.
(2): Excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Samples can be provided as your requirements.
Q: What is your terms of payment ?
A: Can be negotiated by both parties. If you have another question, pls feel free to contact us as below.
Q: What about your price?
A: Our price is very competitive.
Pls feel free to contact us if you are interested in our products.
Q: How long is your delivery time?
A: Different products have different delivery time. The products will be delivered as soon as possible on the basis of the quality assurance. Usually the delivery time is within5-15 days after we received your balance.
