Stainless Steel 317LM is stocked by 4 North American distributors and produced by 8 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Tubular Products by 3 distributors but is also available to a lesser extent in Flat Rolled Products, and Piping Components.
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Specifications
The following specifications cover Stainless Steel 317LM
- ASTM A167
- ASTM A182
- ASTM A213
- ASTM A240
- ASTM A249
- ASTM A269
- ASTM A276
- ASTM A312
- ASTM A358
- ASTM A376
- ASTM A409
- ASTM A479
- UNS S31725
Property Results
Chemistry Data : [top]
Carbon
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0.03 max |
Chromium
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18 - 20 |
Iron
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Balance |
Manganese
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2 max |
Molybdenum
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4 - 4.5 |
Nickel
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12 - 16 |
Phosphorus
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0.045 max |
Silicon
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1 max |
Sulphur
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0.03 max |
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Principal Design Features
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317LM is an austenitic stainless alloy with elevated nickel content compared to 317L. This alloy was developed primarily to resist the attack of sulfuric acid compounds. The alloy combines good corrosion resistance with good mechanical properties and fabricability.
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Applications
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Primarily used in paper pulp, textile, and food processing equipment as well as in flue gas scrubbers and process equipment components for producing chemicals, dyestuffs, rubber, rayon, ink and bleaches.
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Machinability
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Low speeds and constant feeds will minimize this alloy's tendency to work harden. Tougher than 304 stainless with a long stringy chip, the use of chip breakers is recommended.
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Forming
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Forming 317LM will require twice the force required of other conventional 18-8 stainless steels. Generous radii should be allowed in roll forming. The material will not snap or break easily, so it must be cut through the entire thickness.
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Welding
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Weldable using all conventional methods. Use 317L or Inco 625 filler material when required.
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Hot Working
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All common hot working processes are possible with this alloy. Heat to 2100-2300 F (1149-1260 C). Avoid working this material below 1700 F (927 C). For optimum corrosion resistance, a post-work annealing is recommended.
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Annealing
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Soak at 2050-2100 F, water quench.
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Hardening
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Hardened only through cold reduction.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.29
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Specific Gravity
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7.9
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.12
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Melting Point (Deg F)
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2600
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Modulus of Elasticity Tension
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28
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Mechanical Data : [top]
Form |
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Sheet |
Condition |
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Test Specimen Annealed |
Temper |
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1000 |
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Form |
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Sheet |
Condition |
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Test Specimen Annealed |
Temper |
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1200 |
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Form |
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Sheet |
Condition |
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Test Specimen Annealed |
Temper |
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1400 |
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Form |
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Sheet |
Condition |
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Test Specimen Annealed |
Temper |
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1500 |
Videos :
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MSO currently has no videos available for this grade.
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