High Quality Alloy ASTM A312 304 304L Austenitic Stainless Seamless Steel Pipe
| Item | Stainless Steel Seamless Tube/Pipe | |
| Standard | ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605,GB13296 | |
| Material | 200 Series: 201,202 300 Series: 301,304,304L,304H,316,316L,316Ti,317L,321,309s,310s 400 Series: 403,405,409L,410,416,420,431, 434 Duplex Steel: 904L,2205,2507,2101,2520,2304 | |
| Surface | Polishing,annealing,pickling,bright | |
| Shape | Round Pipe/Tube, Round Rod(Bar), Rectangular Pipe & Square Pipe | |
| Type | Hot rolled and cold rolle | |
| Application | Hydraulic Tubes & Instrumentation Tubes | |
| size | Length | 5.8m/6m/ 11.8m/ 12m or Customized |
| Outer diameter | 6mm-1600mm | |
| Delivery time | Within 5-30 days after receiving the prepaid | |
| Package | Standard export seaworthy package,or as required | |
ASTM A312 Stainless steel Pipe include Seamless and Welded Austenitic Stainless Steel Pipes. ASTM A312 Standard specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
Outer Diameter : | 1/8" NPS to 30" NPS |
Thickness : | 0.6 mm to 12.7 mm |
Schedules : | SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. |
Length : | Single Random, Double Random & Cut Length |
End : | Plain End, Beveled End |
Pipe Type | Seamless / ERW/ EFW / Welded / Fabricated Pipe |
ASTM A312 Stainless steel Pipe Grades:TP304,TP304L, TP304H, TP316,TP316L,316Ti, TP316H, TP317, TP317L, TP321, TP321H, TP310S, Tp347, S31254, 254SMO, N08904, 904L, N08367, N08926 etc.
The ASTM A312 Pipe shall be manufactured either hot finished or cold finished.
The Seamless (SMLS) Pipe shall be made by a process that does not involve welding at any stage of production.
The Welded Pipe shall be made using an automatic welding process with no addition of filler metal during the welding process.
The Heavily cold-worked (HCW) Pipe shall be made by applying cold working of not less than 35 % reduction in thickness of both wall and weld to a welded pipe prior to the final anneal. No filler shall be used in making the weld. Prior to cold working, the weld shall be 100 % radiographically inspected in accordance with the requirements of ASME Boiler and Pressure Vessel Code.
The more details about the Material grades Chemical Requirements, Annealing Requirements, Tensile Requirements etc.

ASTM A312 Stainless Steel Pipes OD Tolerance
Standard | OD(mm) | |
OD(mm) | Tolerance | |
ASTM A312 | 10.29~48.26 | +0.4/-0.8 |
48.26~114.30 | +0.8/-0.8 | |
114.30~219.08 | +1.6/-0.8 | |
219.08~457.20 | +2.4/-0.8 | |
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