Duplex Welded Large Diameter Stainless Steel Pipe DN150 S31803 / S32750 / S32760 EFW / ERW
Kaysuns is a top supplier of stainless steel pipes and tubings in China, we provides both seamless stainless steel pipes and welded stainless steel tubings and other ss pipes. Austenitic stainless steel has austenite as its primary phase, our product covers full 300 series and duplex stainless steel, nickel-based alloy and super austenitic stainless steel etc. We are also ability to supply titanium alloy tube and copper alloy tubes in ASME / EN norms. All of our tubings are qualified and a third party inspection are available for them.
Welded stainless steel pipe provides us a large diameter but low cost solution. Our welding process mainly is Plasma-Arc Welding(PAW), its biggest diameter could reach 3000mm. If other process is required, please state it in the requirement of stainless steel tubings.
Strength:
Surface Finishes:
Range Covers:
Materials | Size* | Wall Thickness** | SMLS | Welded |
Stainless Steel 304, 304L, 309S, 310S, 310H, 316/L, 316H, 316Ti, 317/L, 347/H, 904L, S31254(254SMO) |
1/2"-24" |
SCH10S~XXS |
√ |
|
1/2"-104" |
SCH5S~80S/XS |
√ |
||
Duplex & Super Duplex S31803, S32205, S32750, S32760,etc. |
1/2"-16" |
SCH10S~XS |
√ |
|
1/2"-104" |
SCH5S~80S/XS |
|
√ |
|
Nickel Alloy-Alloy20,28,31, Monel400,K500, Inconel 600,601,625, Incoloy800, 800H, 800HT, 825, Hastelloy C22, C276, B2 etc. |
1/2"-16" |
SCH10S~120 |
√ |
|
1/2"-104" |
SCH5S~80S/XS |
√ |
||
Other materials |
Please make a specific enquiry to us, our team will make the best to you asap. |
Notes:
UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
max | max | max | max | max | ||||||
S31803 | 0.03 | 1 | 2 | 0.03 | 0.02 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.08 - 0.20 | - |
S32205 | 0.03 | 1 | 2 | 0.03 | 0.02 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | - |
S32750 | 0.03 | 0.8 | 1.2 | 0.035 | 0.02 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.5 max |
S32760 | 0.05 | 1 | 1 | 0.03 | 0.01 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 4.0 | 0.20 - 0.30 | 0.50 -1.00 |
Size: | Outer diameters from 6 up to 3000 mm (0.24 up to 118 inches), wall thicknesses from 0.5 up to 36 mm (0.02 up to 1.42 inches). |
Rate: | SCH5S to SCHXXS |
Standard: |
ASTM A312, A213, A268,A269, A249, A270, A376,A511; |
Our factory is a leading manufacturer and supplier for qualified Large Diameter Stainless Steel Pipe, includes ASME/ASTM, EN/DIN, JIS series stainless steel pipes, and a wide range for material grades.
For more information, please contact us.