close
Choose Your Site
Global
Social Media
loading
| Availability: | |
|---|---|
| Quantity: | |
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| TP317L | ≤0.035 | ≤0.075 | ≤ 2.00 | ≤0.045 | ≤0.03 | 18.00-20.00 | 3.00-4.00 | 11.00-15.00 |
| Grade | Tensile Strength ksi (Mpa) | Yield Strength ksi (Mpa) | Elongation -% in 50 mm | Hardness (Brinell) MAX | Hardness Rockwell |
TP317L | ≥75(515) | ≥30(205) | ≥35 | ≤ 192HBW/200HV | ≤ 90HRB |
317L stainless steel, also known as UNS S31703, is a low-carbon, high-alloy austenitic stainless steel. It contains higher levels of chromium, nickel, and molybdenum compared to standard 304/304L stainless steel. Here’s how it is used in various industries:
Chemical and Petrochemical Industry:
Corrosion Resistance: 317L is highly resistant to corrosion in aggressive chemical environments, making it suitable for applications involving acids, chlorides, and other corrosive media.
Heat Exchangers: It is commonly used in heat exchangers, condensers, and other equipment where resistance to chloride-induced stress corrosion cracking (SCC) is critical.
Flue Gas Desulfurization (FGD): 317L is employed in FGD systems due to its resistance to sulfuric acid and other acidic gases.
Oil and Gas Industry:
Downhole Equipment: 317L is used in downhole components such as tubing, casing, and pipelines due to its excellent resistance to pitting, crevice corrosion, and sulfide stress cracking.
Seawater Applications: Its resistance to seawater and brine environments makes it suitable for offshore platforms, subsea pipelines, and marine equipment.
Pharmaceutical and Biotechnology Industry:
Cleanliness and Sterility: 317L is preferred for pharmaceutical and biotech applications due to its low carbon content, which minimizes carbide precipitation during welding and maintains cleanliness.
Bioprocessing Equipment: It is used in vessels, tanks, and piping systems for drug manufacturing and sterile processing.
Food and Beverage Industry:
Hygienic Surfaces: 317L is employed in food processing equipment, dairy tanks, and brewing vessels due to its smooth surface finish and resistance to corrosion from food acids.
Power Generation:
Boilers and Heat Exchangers: 317L is used in power plants for its high-temperature strength, corrosion resistance, and weldability.
Steam Condensers: Its resistance to chloride stress corrosion cracking is crucial in steam condenser tubes.
Desalination Plants:
Seawater Reverse Osmosis (SWRO): 317L is used in SWRO systems due to its resistance to chloride attack and pitting corrosion.
Remember that the specific application and conditions determine the suitability of 317L stainless steel. Always consult with materials engineers and industry experts to ensure proper material selection for your specific project!
Testing
EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
Raw Materials Certificate
100% Radiography Test Report
100% PMI
Heat Treatment Charts
Third Party Inspection Report
Surface roughness and size measurement
Manufacturer Test Certificate( Impact Testing, Flatten, Spin,Curve, Hardness, Intergranular ,Point corrosions, Grain size, ET,UT, HT...)
Laboratory Test Certificate from Govt. Approved Lab
......
End of Pipe and Tube
BE : Beveled end
BBE : Bevel both ends
BLE : Bevel large end
BSE : Bevel small end
TOE / POE = Treaded One End / Plain One End
TOE / BOE = Treaded One End / Beveled One End
POE / BOE = Plain One End / Beveled One End
TBE = Treaded Both Ends
PBE = Plain Both Ends
Marking
Supplier / Manufacturer Name or Custom Logo - on request
Specification
Material Grade
Nominal Size
Schedule or Wall Thickness
Method of Manufacturing (Seamless or Welded)
Heat Number
Marked Pipe Sample: XTD ASTM A312 TP317L SEAMLESS 42.2x 3.56*6000MM HEAT NO. 2023121205A15
Packing
Ply Wooden Boxes
PE Fabric Bundles
Standard seaworthy export packing
Plastic Bags, or as required
Delivery
Pickled&Annealed, Polished, Bright Annealed.
All tubes shall be supplied as per applicable ASTM B163 /B426
Mill test certificates will be issued
We can provide 3.2 Certification according to the needs of you
ASTM B312: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM B213: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
317L (UNS S31703) is a low carbon corrosion resistant austenitic chromium-nickel-molybdenum stainless steel. The high levels of these elements assure the steel has superior chloride pitting and general corrosion resistance to the conventional 304/304L and 316/316L grades. The steel provides improved resistance relative to 316L in strongly corrosive environments containing sulfurous media, chlorides, and other halides.
The low carbon content of 317L enables it to be welded without intergranular corrosion resulting from chromium carbide precipitation enabling it to be used in the as-welded condition.
The grade 317L is non-magnetic in the annealed condition. It cannot be hardened by heat treatment; however the material will harden due to cold working. 317L can be easily welded and processed by standard shop fabrication practices.
