Large Diameter Stainless Steel Pipe Grade 304 316L 310S 321 347
904L 2205 2507 254SMO
| Product Name | Stainless steel pipe |
| Standard | ASTM AISI DIN,EN, GB JIS |
| Steel Grade | 200 Series: 201,202
300 Series: 301.304.304L,316,316L316Ti,317L.321.309s,310s
400 Series: 409L410,410s,420j1,420j2,430,444,441,436
Duplex Steel: 904L 2205,2507,21012520,2304 |
| Outer Diameter | 6-600mm(as required) |
| Thickness | 0.3mm-40mm (as required) |
| Length | 2000mm/2500mm/3000mm/6000mm/12000mm(as required) |
| Technique | Welded,Seamless |
| Surface | pickling / polished |
| Tolerance | 土1% |
| Price Terms | FOB.CFR.CIF |
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.
About The Surface Of Stainless Steel Tubing
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.
Electropolishing / EP Tube
Stainless steel EP tube is high purity and high-precision tube,
which is mainly used in demanding environments such as
bioengineering, semiconductors, laboratories, and precision
instruments. Our EP pipe can reach a roughness of 0.2 on the inner
surface to meet the stringent requirements of various working
conditions.
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. |
Stainless Steel Tube Dimensions
| Materials | Dimension/OD | Dimension/Wall thickness |
| Stainless Steel TP304L, 316L, 310S, 317L, 321, 347H etc. | 6mm ~ 204mm | 0.4mm ~ 16mm |
| Super Stainless Steel 904L, 254 SMO | 6mm ~ 204mm | 1.2mm ~ 16mm |
| Duplex 2205, 2507 | 6mm ~ 204mm | 1.2mm ~ 16mm |
| Nickel-based Alloy | 6mm ~ 204mm | 1.2mm ~ 16mm |
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.
OUR STRENGTH:
- Full grades of austenitic stainless steel, duplex stainless steel
and nickel-based alloy
- Ultra long ss tube up to 22 meters
- Small order quantity available from 200kgs
- More than 15 years manufacturing experiences of stainless steel
tubings
- Good supplying experiences for ASTM A213, A269 tubes
- Fast delivery of 20~40days for general grades
- Flexible and professional service and operations
- Both seamless and welded pipe are available
- Perfect inspection system – 100% NDT test, mechanical propertis
test, MPI test
- Accept any third party inspection from such SGS, TUV, DNV,
InterTek, Lloyd’s, BV, ABS etc.
- Full supplying of stainless steel piping – stainless steel pipes,
pipe fittings, flanges, sheet etc.
