Stainless Steel Pipes

Stainless Steel Pipes

Kaysuns is a professional 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.


What Is The Technology for Seamless Stainless Steel Pipes

  • Cold Rolling is a preferred production process for high precision seamless stainless steel tube. Most of our heat exchanger tubes and precision tubes are cold rolled tubing. This technique provides a high forming rate, narrow tolerances and good turnouts. At present, the largest diameter we can get is 114.3mm for this processing.
  • Cold drawing is the common process for our ss tubings and pipes. Cold drawn stainless steel pipe will get a very narrow tolerance ranges, and keep the chemical element in a good condition. Additionally, the cold drawing process is the perfect choice for situations which place high requirements on the quality of the surface structure.

Surface Finishes:

  • Pickling finish
  • Bright annealed finish
  • Mirror/ Polished finish
  • Sand blast finish

Materials of Stainless Steel Pipes

Material Grade
Stainless Steel TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 347, 347H, 321, 321H, 904L, S31254(254SMO)
(mat.1.4301,1.4307,1.4948,1.4401,1.4404,1.4571,1.4438,1.4438, 1.4833,1.4841,1.4845,1.4845,1.4450,1.4541,1.4878,1.4539, ,1.4547) etc.
Duplex & Super Duplex Steel UNS S31803, S32205, S32750, S32760, S32304 (Mat.1.4462,1.4410,1.4501,1.4362)etc.
Nickel Alloy Monel 400, Inconel 600, Inconel 625, Incoloy 800, Incoloy 800H, Incoloy 825, Hastelloy B2, Hastelloy C-22, Hastelloy C-276, 15-5PH, 17-7PH, Cu70Ni30(C71500/B30), Cu90Ni10(C70600/B10) etc.
(*If your required is not found here, please make a special inquiry immediately.)

Range Covers - Stainless Steel Pipes Dimensions

Materials Size* Wall Thickness** SMLS Welded
Stainless Steel 304, 304L, 309S, 310S, 310H, 316/L, 316H, 316Ti, 317/L, 347/H,
904L, S31254(254SMO)







Duplex & Super Duplex S31803, S32205, S32750,







Nickel Alloy-Alloy20,28,31,
Inconel 600,601,625,
Incoloy800, 800H, 800HT, 825, Hastelloy C22, C276, B2 etc.







Other materials

Please make a specific enquiry to us, our team will make the best to you asap.


  • *Dimension range is not available for duplex and some special grade(For example,super duplex S32750 ≤16”). Please make a specific inquiry.
  • ** Wall thickness range is not available for duplex and some special grade, please make a specific inquiry.
  • ***For details of dimension range of seamless stainless steel tubing, please click here.


  • Full grades of austenitic stainless steel, duplex stainless steel and nickel based alloy
  • Small order quantity available from 200kgs
  • Large diameter seamless stainless steel pipe, up to 36"
  • Thin wall thickness seamless stainless steel pipe, like o.d.273×w.t.4mm
  • Double quality control system - first from our approved factory, second from our owned QA
  • Fast delivery of 20~40days for general grades
  • Flexible and professional service and operations
  • Both seamless and welded pipe are available

Quality & Inspection:

  • PMI test to verify material grade
  • Dimension controlling during fabricating and finished
  • Visual and surface 100% examination before shipment
  • End protected for shipment
  • Packed in carton box firstly, then in wooden case


  • Ship building,
  • Petrochemical,
  • Steel plant,
  • Refineries,
  • Chemical,
  • Fertilizers,
  • Defence,
  • Power plant,
  • Shipyard,
  • Oil & gas,
  • Offshore,
  • Railway,
  • LNG,
  • etc.

*For more information of stainless steel pipes, please feel free to contact us.

Stainless Steel Pipes Catalog