Description
ASTM A312 Stainless Steel 304/316L Pipes and Tubes Manufacturers & Suppliers
Metline is one of the leading stockholder and supplier of ASTM A312 stainless steel pipes and tubes. Our stock of ASTM A312 seamless tubes and welded pipes primarily consists of the austenitic grades of stainless steel including TP304, TP304L, TP304H, TP321H, TP321, TP316, TP316L, TP316Ti, TP310S, TP347, TP347H in annealed and pickled, 2B finish annealed, mill finish and polished conditions.
Our high quality steel pipes, good customers service, and in house pipes and tubes processing capabilities have made us one of the emerging suppliers of ASTM A312 stainless steel seamless pipes and ASTM A312 stainless steel welded pipes and tubes.
Related Products: ASTM A312 TP316L Stainless Steel Pipes, ASTM A312 TP316L Seamless Pipe Dealer, ASTM A312 TP316L ERW Pipes, ASTM A312 TP316L EFW Pipe,ASTM A312 TP316L SS Pipe, ASTM A312 TP316L Cold Draw Seamless Pipes, ASTM A312 TP316L Stainless Steel ERW Pipe
ASTM 312 Stainless Steel Pipes and Tubes Production, Stock & Supply Range
Product | ASTM 312 Stainless Steel Pipes and Tubes (TP304, TP304L, TP304H, TP316, TP316L, TP316H, TP316Ti, TP321, TP321H, TP347H, 904L, TP310H, TP310S, TP317, TP317L) |
Standard Size | 1/8” to 24” (10.3mm to 610mm) |
Unit Length | Up to 6 meters, custom cut lengths |
Wall Thickness | 1mm to 60mm (10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH) |
Surface Finish | 2B MIll Finish , No.4 finish, BA Finish, 400 Grit Finish, 550 Grit Finish, 600 Grit Finish |
Specification | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790 |
Type | Seamless, Welded |
Applications | Marine Exteriors, Chemical Processing equipment, Food Processing Equipment, Petroleum Refining, Pharmaceutical, Pulp & Paper Industries |
Certification | EN 10204 3.1 |
Testing | Hydro Tested, Chemical, Mechanical Test, PMI |
Inspection | Third Party Inspection, Buyer Inspection |
Packing | Weaving Bag, Seaworthy Bundles, Wooden Case if required |
Delivery Time | 1-2 Days for Material in Stock, 7-30 Days for Make to Order Materials |
Delivery condition | AP (Annealed and Pickled), MP (Mechanical Polish), BA (Bright Annealed), EP (Electro Polished) |
ASTM A312 Specifications
ASTM A312 specification covers seamless pipe and welded pipe for austenitic stainless steel. These high performance austenitic stainless steels have a fully austenitic microstructure in the quench annealed condition. These grades are sometime alloyed with nitrogen to improve strength or with sulphur to improve machinability. 904L was originally developed to withstand environments involving dilute sulphuric acid and it is one of the few stainless steels that, at temperatures up to 35°C, provides full resistance. This is mainly due to the high contents of chromium, nickel, molybdenum and nitrogen
Chemical Composition of ASTM A312 Stainless Steel Pipes and Tubes
Grade | UNS | Chemical Composition |
Design | C | Mn | P | S | Si | Cr | Ni | Mb | Ti | Nb | N | Cu | Ce | B | Al |
TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 8.0–11 | . . . | . . . | . . . | . . . | . . . | . . . | | |
TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 8.0–13 | . . . | . . . | . . . | . . . | . . . | . . . | | |
TP304H | S30409 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 8.0–11 | . . . | . . . | . . . | . . . | . . . | . . . | | |
TP310S | S31008 | 0.08 | 2 | 0.045 | 0.03 | 1 | 24.0- 26 | 19.0- 22 | 0.8 | . . . | . . . | . . . | . . . | . . . | | |
TP310H | S31009 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 24.0–26 | 19.0–22 | . . . | . . . | . . . | . . . | | . . . | | |
TP310H | S31035 | 0.04 – 0.1 | 0.6 | 0.025 | 0.015 | 0.4 | 21.5–23.5 | 23.5–26.5 | . . . | . . . | 0.40- 0.6 | 0.20- 0.3 | 2.5- 3.5 | . . . | 0.002- 0.008 | |
TP316 | S31600 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0–18 | 10.0–14 | 2.00–3 | . . . | . . . | . . . | . . . | . . . | | |
TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0–18 | 10.0–14 | 2.00–3 | . . . | . . . | . . . | . . . | . . . | | |
TP316H | S31609 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 16.0–18 | 10.0–14 | 2.00–3 | . . . | . . . | . . . | . . . | . . . | | |
TP317 | S31700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 11.0–15 | 3.0–4 | . . . | . . . | . . . | . . . | . . . | | |
TP317L | S31703 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 11.0–15 | 3.0–4 | . . . | . . . | . . . | . . . | . . . | | |
TP321 | S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–12 | . . . | Ti 5 × (C+N) min, 0.70 max | . . . | 0.1 | . . . | . . . | | |
TP321H | S32109 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–12 | . . . | 4(C+N) min; 0.70 max | . . . | 0.1 | . . . | . . . | | |
TP321H | S32654 | 0.02 | 2.0-4 | 0.03 | 0.005 | 0.5 | 24.0–25 | 21.0–23 | 7.0-8 | . . . | . . . | 0.45- 0.55 | 0.30-0.6 | . . . | | |
TP321H | S33228 | 0.04 – 0.08 | 1 | 0.02 | 0.015 | 0.3 | 26.0–28 | 31.0–33 | . . . | . . . | 0.60- 1 | . . . | . . . | 0.05 – 0.1 | | 0.025 |
TP321H | S34565 | 0.03 | 5.0-7 | 0.03 | 0.01 | 1 | 23.0–25 | 16.0–18 | 4.0-5 | . . . | 0.1 | 0.40- 0.6 | . . . | . . . | | |
TP347 | S34700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–13 | . . . | . . . | See Spec | . . . | . . . | . . . | | |
TP347H | S34709 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–13 | . . . | . . . | See Spec | . . . | . . . | . . . | | |
Alloy 20 | N08020 | 0.07 | 2 | 0.045 | 0.035 | 1 | 19.0–21 | 32.0–38 | 2.0–3 | . . . | See Spec | . . . | 3.0– 4 | . . . | . . . | . . . |
Alloy 20 | N08367 | 0.03 | 2 | 0.04 | 0.03 | 1 | 20.0–22 | 23.5–25.5 | 6.0–7 | . . . | . . . | 0.18–0.25 | 0.75 | . . . | . . . | . . . |
Alloy 20 | N08028 | 0.03 | 2.5 | 0.03 | 0.03 | 1 | 26.0–28 | 30.0–34 | 3.0–4 | | | | 0.60–1.4 | | | |
Alloy 20 | N08029 | 0.02 | 2 | 0.025 | 0.015 | 0.6 | 26.0–28 | 30.0–34 | 4.0–5 | | | | 0.6– 1.4 | | | |
Mechanical Composition Of ASTM A312 Stainless Steel Tubes and Pipes
Grade | UNS | Tensile Strength, Min. ksi [MPa] | Yield strength, min ksi [MPa] | other |
Designation |
TP304 | S30400 | 75 [515] | 30 [205] | |
TP304L | S30403 | 70 [485] | 25 [170] | |
TP304H | S30409 | 75 [515] | 30 [205] | |
TP304H | S30415 | 87 [600] | 42 [290] | |
TP310S | S31008 | 75 [515] | 30 [205] | |
TP310H | S31009 | 75 [515] | 30 [205] | |
TP310H | S31035 | 95 [655] | 45 [310] | |
TP316 | S31600 | 75 [515] | 30 [205] | |
TP316L | S31603 | 70 [485] | 25 [170] | |
TP316H | S31609 | 75 [515] | 30 [205] | |
TP316H | S31635 | 75 [515] | 30 [205] | |
TP317 | S31700 | 75 [515] | 30 [205] | |
TP317L | S31703 | 75 [515] | 30 [205] | |
TP317L | S31725 | 75 [515] | 30 [205] | |
TP317L | S31726 | 80 [550] | 35 [240] | |
TP317L | S31727 | 80 [550] | 36 [245] | |
TP317L | S31730 | 70 [480] | 25 [175] | |
TP317L | S32053 | 93 [640] | 43 [295] | |
TP321 | S32100 | 75 [515] | 30 [205] | welded & seamless |
TP321 | S32100 | 75 [515] | 30 [205] | t = 0.375 in. |
TP321 | S32100 | 70 [480] | 25 [170] | t > 0.375 in. |
TP321H | S32109 | 75 [515] | 30 [205] | welded & seamless |
TP321H | S32109 | 75 [515] | 30 [205] | t = 0.375 in. |
TP321H | S32109 | 70 [480] | 25 [170] | t > 0.375 in. |
TP321H | S32615 | 80 [550] | 32 [320] | |
TP321H | S32654 | 109 [750] | 62 [430] | |
TP321H | S33228 | 73 [500] | 27 [185] | |
TP321H | S34565 | 115 [795] | 60 [415] | |
TP347 | S34700 | 75 [515] | 30 [205] | |
TP347H | S34709 | 75 [515] | 30 [205] | |
Alloy 20 | N08020 | 80 [550] | 35 [240] | |
Alloy 20 | N08028 | 73 [500] | 31 [214] | |
Alloy 20 | N08029 | 73 [500] | 31 [214] | |
Alloy 20 | N08367 | 100 [690] | 45 [310] | t = 0.187 in. |
Alloy 20 | N08367 | 95 [655] | 45 [310] | t > 0.187 in. |
ASTM A312 Specification and Grades Of Stainless Steel Tubes and Pipes
Grade | Specification |
Stainless 304/304L, 304/304H | A/SA312 |
Stainless 309S | A/SA312 |
Stainless 310S | A/SA312 |
Stainless 316/316L, 316/316H | A/SA312 |
Stainless 317/317L | A/SA312 |
Stainless 321/321H | A/SA312 |
Stainless 347/347H | A/SA312 |
Materials Grades of Stainless Steel Pipes & Tubes, Under Various Specifications
Stainless Steel Seamless Pipe | ASTM A312 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 410, 904L |
Stainless Steel Welded Pipe | ASTM A312 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L |
Stainless Steel Seamless Tube | ASTM A213 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L |
Stainless Steel Seamless Tube | ASTM A269 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L |
Stainless Steel Welded Tube | ASTM A249 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L |
Stainless Steel EFW Tube | ASTM A358 CL. 1 to 5 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, |
Stainless Steel Fabricated pipe welded from plates | Fabricate form S.S. Plates as per ASTM A240 TP304/L/H, 310/H, 316/L/H/Ti, 321/H, 347/H, 904L with or without 10% Radiographic Welding. |
Application Of ASTM A312 Stainless Steel Pipes and Tubes
Stainless Steel 304/316L pipes find applications in a wide rage of industrial sectors such as off-shore oil drilling, power generation, petrochemicals, gas processing, specialty chemicals, pharmaceuticals, pharmaceutical equipment, chemical equipment, sea water equipment, heat exchangers, condensers, pulp and paper industry