317L Plate /ASTM A240 317L sheet

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317L Plate /ASTM A240 317L sheet

Alloy 317L

Steel Plate Industrial Plates manufacturer & supplierAlloy 317L (UNS S31703) is a molybdenum-bearing austenitic stainless steel with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steels such as Alloy 304. In addition, Alloy 317L offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steels. It is a low carbon or “L” grade which provides resistance to sensitization during welding and other thermal processes.

Specification Sheet: Alloy 317L 
(UNS S31703) W. Nr. 1.4438

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317L PLATE General Properties

Alloy 317L (UNS S31703) is a lowcarbon corrosion resistant austenitic chromium-nickel-molybdenum stainless steel. The high levels of these elements assure the alloy has superior chloride pitting and general corrosion resistance to the conventional 304/304L and 316/316L grades. The alloy provides improved resistance relative to 316L in strongly corrosive environments containing sulfurous media, chlorides, and other halides.

The low carbon content of Alloy 317L enables it to be welded without intergranular corrosion resulting from chromium carbide precipitation enabling it to be used in the as-welded condition. With the addition of nitrogen as a strengthening agent, the alloy can be dual certified as Alloy 317 (UNS S31700).

Alloy 317L is non-magnetic in the annealed condition. It cannot be hardened by heat treatment, however the material will harden due to cold working. Alloy 317L can be easily welded and processed by standard shop fabrication practices.

317L PLATE Applications

  • Air Pollution Control — flue gas desulfurization systems (FGD)
  • Chemical and Petrochemical Processing
  • Explosives
  • Food and Beverage Processing
  • Petroleum Refining
  • Power Generation — condensers
  • Pulp and Paper

317L PLATE Physical Properties

0.285 lbs/in3
7.89 g/cm3
Specific Heat
0.12 BTU/lb-°F (32 – 212°F)
502 J/kg-°K (0 – 100°C)

Modulus of Elasticity

29.0 x 106 psi
200 GPa

Thermal Conductivity 212°F (100°C)
8.7 BTU/hr/ft2/ft/°F
1.26 W/m-°K

Melting Range

2540 – 2630°F
1390 – 1440°C

Electrical Resistivity

33.5 Microhm-in at 68°C
85.1 Microhm-cm at 20°C

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317L PLATE Corrosion Resistance

The higher molybdenum content of Alloy 317L assures superior general and localized corrosion resistance in most media when compared with 304/304L and 316/316L stainless steels. Environments that don’t attack 304/304L stainless steel will normally not corrode 317L. One exception, however, are strongly oxidizing acids such as nitric acid. Alloys that contain molybdenum generally do not perform as well in these environments.

Alloy 317L has excellent corrosion resistance to a wide range of chemicals. It resists attack in sulfuric acid, acidic chlorine and phosphoric acid. It is used in handling hot organic and fatty acids often present in food and pharmaceutical processing applications.

The corrosion resistance of 317 and 317L should be the same in any given environment. The one exception is where the alloy will be exposed to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). Because of its low carbon content, 317L is the preferred material in this service to guard against intergranular corrosion.

In general, austenitic stainless steels are subject to chloride stress corrosion cracking in halide service. Although 317L is somewhat more resistant to stress corrosion cracking than 304/304L stainless steels, because of its higher molybdenum content, it is still susceptible.

The higher chromium, molybdenum and nitrogen content of 317L enhance its ability to resist pitting and crevice corrosion in the presence of chlorides and other halides. The Pitting Resistance Equivalent including Nitrogen number (PREN) is a relative measure of pitting resistance. The following chart offers a comparison Alloy 317L and other austenitic stainless steels.

317L PLATE Fabrication Data

Alloy 317L can be easily welded and processed by standard shop fabrication practices.

317L PLATE Machining

The cold work hardening rate of Alloy 317L makes it less machinable than 410 stainless steel. The table below provides relevant machining data.

317L PLATE Hot Forming

Working temperatures of 1652 – 2102°F (900 – 1150°C) are recommended for hot working processes. Do not work this alloy below 1742°F (950°C). If the final forming temperature falls below this threshold, a solution anneal of 1976 – 2156°F (1080 – 1180°C) is necessary. Rapid quenching is required.

317L PLATE Cold Forming

The alloy is quite ductile and forms easily. The addition of molybdenum and nitrogen implies more powerful processing equipment may be necessary when compared with the standard 304/304L grades.

317L PLATE Machining

Alloy 317L can be readily welded by most standard processes. A post weld heat treatment is not necessary.

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We export 317L Plate /ASTM A240 317L sheet to Iran, Iraq, Oman, Qatar, Albania, Muscat, Bahrain, Turkey, Egypt, Maldives, Italy, UAE, Bahrain, Indonesia, Australia, Kuwait, Saudi Arabia, South Africa, Germany, UK, Denmark, Canada, USA, Peru, Brazil, Nizeria, Mexico, Venezuela (Latin America), South America, Russia, kazakhstan etc.

We Export 317L Plate /ASTM A240 317L sheet to Saudi Arabia, Qatar, Oman, Iran, Iraq, Bahrain, Kuwait, United Arab Emirates, Dubai, Turkey, Egypt, Yemen, Israel, Jordan United Kingdom, United States of America, Mexico, Brazil, Chile, Argentina, Spain, Germany, Netherland, Italy, Europe, Albania, Ukraine, Russia, Japan, China, Sri Lanka, Pakistan, Bangladesh, Nepal, Bhutan, Maldives, Singapore, Malaysia, Thailand, South Korea, Vietnam, Indonesia, Australia, New Zealand, Alaska, Tehran, Riyadh, Jubail, Dammam, Jeddah, Houston, Doha, Musqat, Karachi, Colombo, Jakarta, Bangkok, Basra, Abadan, Bandar Abbas, Sharjah, Morocco, Istanbul, Kobhar, Mecca, Madina, Al Madina, Makkah, Mesaieed, Dukhan, Ras Laffan, Sohar, Manama, Aqaba, Port of Aden, Shuwaikh, Yanbu, Jubail

Steber Steel is a well known worldwide exporter of 317L Plate /ASTM A240 317L sheet, Steber Steel is committed to provide each and every customer with the highest standard of customer service. We deals in 317L Plate /ASTM A240 317L sheet in India & Overseas, offering a wide range of 317L Plate /ASTM A240 317L sheet.

Contact Steber Steel today for a 317L Plate /ASTM A240 317L sheet competitive quotation…
call : (+91) 22-23824442
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