Seamless Stainless Steel Pipe SA213 SA312 SA789 Grade 304 Stainless Steel Tube
We are a professional supplier of stainless steel tubing in China, we provides both stainless steel seamless tubing and stainless steel welded tubing. Our product covers full 300 series such as 304/ 304L, 316/ 316L, 310S, 316Ti, 317L, 347H and duplex SS 2205 and super duplex 2507, nickel-based alloy Monel 400, Hastelloy C276, Inconel 625, Incoloy 825, super austenitic stainless steel 254 SMO (S31254), 904L etc. We are also ability to supply titanium alloy tube and copper alloy tubes in ASME / EN norms. All of our tubings are qualified, as well as third party inspection are available for all of our tubes.
The Manfacturing Process of Stainless Steel Tubing
- Cold Rolling is a preferred production process for high precision seamless tubing. Most of our stainless steel tubing and mechanical tubes are made by cold rolling. This technique provides a high forming rate, narrow tolerances and good turnouts. Now the biggest diameter we can get is 219 mm for this process.
- Cold drawing is the general process for our stainless steel tube and pipe. seamless pipe and tubes from this process can be got a a very narrow tolerance ranges, and keep the chemical element well. Additionally, the cold drawing process is the perfect choice for situations which place high requirements on the quality of the surface structure.
Materials of Stainless Steel Tubing
| Material | Grade |
| Stainless Steel | TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 347, 347H, 321, 321H, 904L, S31254 (mat.1.4301, 1.4307, 1.4948, 1.4401, 1.4404, 1.4571, 1.4438, 1.4833, 1.4841, 1.4845, 1.4845, 1.4450, 1.4541,1.4878, 1.4539 , 1.4547/254 SMO) 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, Cu/Ni 70/30(C71500/B30), Cu/Ni 90/10(C70600/B10) etc. |
(*If your required is not found here, please make a special inquiry immediately.)
Stainless Steel Tube Dimensions
| Materials | Dimension/OD | Dimension/Wall thickness |
| Stainless Steel TP304L, 316L, 310S, 317L, 321, 347H etc. | 6mm ~ 406mm | 0.4mm ~ 30mm |
| Super Stainless Steel 904L, 254 SMO | 6mm ~ 406mm | 1.2mm ~ 30mm |
| Duplex 2205, 2507 | 6mm ~ 406mm | 1.2mm ~ 30mm |
| Nickel-based Alloy | 6mm ~ 406mm | 1.2mm ~ 30mm |
Notes:
*The stainless steel tubing dimension is for seamless tubing only, please click here if you have any requirement for stainless steel welded tubings.
**The dimension is for currently equipment. We may update the equipment and extend the supplying range without notice. Please contact us if you couldn’t find your specification here.
Specification & Manufacturing Standard:
ASTM A269, A213, ASTM A249, ASTM A789
ASTM SB677, SB163, SB622, SB729, SB161
ASTM SB111, ASTM B338, SB359
EN 10216-5
DIN 17456, DIN 17458, DIN 17459 etc.
Surface Finishing of our stainless steel pipe
Pickled Surface Stainless Steel Tube (Mill Finish)
The mill finish of stainless stee tubings is pickled surface. The tubes will be pickled and passivated after solution annealing, then it will get a passivation coating to improve the performance of corrosion resistance. If there is no specific requirement on the surface, the tube will be mill finish.
Polished Stainless Steel Tube
The polished is mechanical polishing here, including internal surface and external surface. The roughness can be min. 0.4 µm (16 µin) or Grit 300 from polishing. Mechanical polishing uses a fully automatic polishing machine to control the surface accuracy and roughness to meet the needs of food grade and bioengineering.
Bright Annealing / BA Tube
BA tube is stainless steel tube with bright annealing, a heat treatment process that is different from ordinary solution annealing of stainless steel, and can obtain a better precision and surface roughness. The BA tube does not need to be pickled again, and its roughness can meet the precision requirements of polishing, but the cost is higher than mechanical polishing stainless steel tubes.
Applications of stainless steel pipe
Stainless Steel tubing is used for incredibly diverse applications. Industries which rely on stainless steel tubing and piping include the automotive, pulp/papermaking, dental, medical, solar, construction, industrial, petrochemical, and semiconductor industries. Applications within these various industries include engine conduits and fuel lines, hydraulic systems, stainless steel hoses, dental implants, braces, medical instruments, gas heating systems, and temporary structural support etc.
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