Metal Waste

Stainless Steel Seamless Pipes, ASTM A312 / A312M-2013a TP317, TP317L, 1.4438
TOBO GROUP deal with stainless steel seamless pipe and tube already more than 30 years, every year sell more than 80000 tons of stainless steel seamless pipe and tube. Our client already cover more than 45 countries
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ASTM A213 / A213M - 11a: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A269 - 10: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
ASTM A312 / A312M - 12: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A511 / A511M - 12: Standard Specification for Seamless Stainless Steel Mechanical Tubing
ASTM A789 / A789M - 10a: Standard Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
ASTM A790 / A790M - 11: Standard Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Pipe
DIN 17456-2010: GENERAL PUROSE SEAMLESS CIRCULAR STAINLESS STEEL TUBES.
DIN 17458-2010: Seamless Circular of Austenitic Stainless Steel Tube
EN10216-5 CT 1/ 2 : Stainless Steel Seamless Pipe & Tube
GOST 9941-81: SEAMLESS COLD- AND WARM-WORKED TUBES MADE OF CORROSION RESISTANT STEEL.
Others like BS, JIS standard or can supply
ASTM A312 TP317L Stainless Steel Seamless Pipes and Tubes specification:
Tubing Size : 1/8″NB TO 30″NB IN
Specialized in : Large Diameter Size
Tubing Schedule: SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Tubing Type : Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form: Round, Square, Rectangular, Hydraulic Etc.
Length: Single Random, Double Random & Cut Length.
Tubing End: Plain End, Beveled End, Treaded.
Production according to national and international standards (e.g. ASME, ASTM , API, EN, DNV, etc.)

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Chemical Composition in Weight Percent
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per ASTM A240 for Cited Alloys |
Element | Type 317L | Type 317LMN |
Carbon | 0.03 max | 0.03 max |
Manganese | 2.00 | 2.00 |
Silicon | 0.75 max | 0.75 max |
Chromium | 18.00 – 20.00 | 17.00 – 20.00 |
Nickel | 11.00 – 15.00 | 13.50 – 17.50 |
Molybdenum | 3.00 – 4.00 | 4.00 – 5.00 |
Phosphorus | 0.04 max | 0.04 max |
Sulfur | 0.03 max | 0.03 max |
Nitrogen | 0.10 max | 0.10 – 0.20 |
Iron | Balance | Balance |
UNS No. | S31703 | S31726 |
Minimum Mechanical Properties per
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ASTM A-240 for Cited Alloys |
Property | Alloy 317L | Alloy 317LMN |
Ultimate Tensile Strength, ksi (MPa) | 75
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(515) | 80
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(550) |
0.2% Yield Strength, ksi (MPa) | 30
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(205) | 35
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(240) |
% Elongation in 2a?3 (5.1 cm) | 40 | 40 |
Hardness, Maximum | 217BHN | - |
UNS No. | S31703 | S31726 |
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Pitting Resistance Equivalents |
Alloy | PRE |
Alloy 316 | 25 |
Alloy 317L | 30 |
Alloy 317LMN | 38 |
Alloy 625 | 52 |
Alloy C276 | 69 |
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