ASTM A312 Seamless Steel Pipe For Industry
ASTM A312 pipes are mainly made of austenitic stainless steel and are widely used in various corrosive environments and high temperature working conditions.
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Description
What is ASTM A312 Industrial Pipe Material?
ASTM A312 Industrial Seamless Steel Pipe is a standard developed by the American Society for Testing and Materials (ASTM) specifically for the production and inspection of austenitic stainless steel seamless steel pipes. The standard covers pipes ranging from 1/8 inch (6.4mm) to 30 inches (760mm) in diameter, with wall thickness ranging from standard (SCH 5S) to form XXS (SCH XXS) to meet the needs of different industries for stainless steel pipes. Strict chemical composition inspection, mechanical property testing (such as tensile and impact testing) and non-destructive testing (such as ultrasonic testing).
ASTM A312 Stainless Steel Seamless Pipe Supplier - GNEE
ASTM A312 stainless steel pipe supplied by GNEE adopts austenitic stainless steel (such as TP304, TP316L, TP321 and other grades), with a stable crystal structure, ensuring corrosion resistance and high temperature performance, and excellent resistance to chemical media such as acid, alkali, and salt, especially in chloride environment. The Cr₂O₃ oxide film formed on the surface is effective in resisting oxidation, and can maintain high strength and toughness in the range of -200℃ to 800℃, suitable for high pressure and high temperature conditions.
ASTM A312 Cold Draw Seamless Pipes
ASTM A312 Stainless Steel Pipe Specification
ASTM A312 Material Chemical Composition
| Grade | Carbon | Silicon | Manganese | Chromium | Nickel | Molybdenum | Sulfur | Phosphorous |
|---|---|---|---|---|---|---|---|---|
| TP304 | 0,08 | 1,0 | 2.00 | 18.0 – 20.0 | 8.0 – 11.0 | – | 0,03 | 0,045 |
| TP304L | 0,035 | 1,0 | 2.00 | 18.0 – 20.0 | 8.0 – 13.0 | – | 0,03 | 0,045 |
| TP316 | 0,08 | 1,0 | 2.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 | 0,03 | 0,045 |
| TP316L | 0,035 | 1,0 | 2.00 | 16.0 – 18.0 | 10.0 – 15.0 | 2.00 – 3.00 | 0,03 | 0,045 |
| TP321 | 0,08 | 1,0 | 2.00 | 17.0 – 19.0 | 9.0 – 12.0 | – | 0,03 | 0,045 |
ASTM A312 Material Mechanical Properties
| Grade | UNS | Tensile Strength Min, Ksi [MPa] |
Yield Strength Min, Ksi [MPa] |
|---|---|---|---|
| TP304 | S30400 | 75 [515] | 30 [205] |
| TP304L | S30403 | 70 [485] | 25 [170] |
| TP309S | S30908 | 75 [515] | 30 [205] |
| TP310S | S31008 | 75 [515] | 30 [205] |
| TP316 | S31600 | 75 [515] | 30 [205] |
| TP316L | S31603 | 70 [485] | 25 [170] |
ASME SA312 Pipe Specification
| Standard Specification | ASTM A312 ASME SA312 |
| Size | ½ to 6 inch Nominal Bore |
| Types | Welded, Seamless, ERW, EFW Supplier and Manufacturer |
| Wall Thickness | 0.1 - 60 mm |
| Length |
Single Random Length 5 to 7 Meter Double Random Length 10 - 12 Meter |
| Surface Finish | Polished, Bright, Annealing, Cold Finish, Pickling |
| Schedule Pipe Thickness Range | Schedule 60, XS, Schedule 160, Schedule 120, STD, Schedule 40, Schedule 140, Schedule 20, Schedule 80, Schedule 80, XXS, Schedule 30, Supplier in Mumbai |
| Standard | DIN, JIS, ASTM, GB, ASME, AISI, AMS, EN, GOST |
| Manufacturing Shapes | Round, Box Section, Square, Rectangle |
ASTM A312 Welded Pipe Testing and Inspection
Grain Size Determinations
Radiographic Examination
Hydrostatic or Nondestructive Electric Test
Intergranular Corrosion Test
Weld Decay Tests
Weld Decay Test
Transverse or Longitudinal Tension Test
Flattening Test
Mechanical Tests
What is the difference between A358 and A312?
ASTM A358 is used for high temperature pipes (High Temperature Service), while ASTM A312 is used for general pipes (For general Service). Secondly, the pipe forms are different. ASTM A358 is mainly used to specify the standard of welded pipes (Electric Fusion Welded), while ASTM A312 is a standard that can be used for both welded pipes and seamless pipes.
ASTM A312 Stainless Steel Seamless Pipe Export Customers
ASTM A312 Stainless Steel Pipes Manufacturers
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