Kaysuns Industry Ltd.
Kaysuns Industry Ltd.
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We can offer both duplex stainless steel pipe and super duplex stainless steel pipes and tubes.
Super duplex stainless steel pipe is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel.The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.
Compared to duplex stainless steel pipe, super duplex steel pipe is 2507 duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid.
Applications
Our Strength:
| Dimension | Welded: 8"~48" / 2.11mm~25.4mm | Seamless: 3/8"~16" / 2.11mm~25.4mm |
|---|---|---|
| Grade | UNS S31803, S32205, S32750, S32760, S32304, 1.4462, 1.4410, 1.4501, 1.4362 etc. | |
| Standard | ASTM A789, A790, EN10216-5, EN/DIN17455-2, EN17456-2etc. | |
| Composition | |||||||||
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | N |
| max | max | max | max | max | |||||
| UNS S32750 | 0.03 | 0.8 | 1.2 | 0.03 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.03 | 1 | 2 | 0.02 | 0.02 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| Properties | |||||||
| Grade | Y.S.MPa min | T.S.Mpa min | Elongation % | Hardness HRC | |||
| UNS S32750 | 550 | 800 | 15 | 20 | |||
| UNS S31803 | 450 | 620 | 25 | 20 | |||
Our factory is a leading manufacturer and supplier for qualified duplex stainless steel pipes and super duplex steel pipes and tubes, includes ASME/ASTM, EN/DIN, JIS series stainless steel pipes, and a wide range for material grades.
For more information, please contact us.