Stainless Steel 317LMN is stocked by 6 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 Flat Rolled Products by 5 distributors but is also available to a lesser extent in Tubular Products, and Piping Components.
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Specifications
The following specifications cover Stainless Steel 317LMN
- ASTM A167
- ASTM A240
- ASTM A312
- DIN 1.4439
- UNS S31726
Property Results
Chemistry Data : [top]
Carbon
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0 - 0.03 |
Chromium
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17 - 20 |
Iron
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Balance |
Manganese
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0 - 2 |
Molybdenum
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4 - 5 |
Nickel
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13.5 - 17.5 |
Nitrogen
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0.1 - 0.2 |
Phosphorus
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0 - 0.045 |
Silicon
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0 - 0.75 |
Sulphur
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0 - 0.03 |
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Principal Design Features
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317LMN is an austenitic, chromium nickel steel, similar in many respects to 316L with a higher alloy content.
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Applications
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Commonly employed in components in the paper pulp, textile, food processing and process equipment industries. Found to be successful in applications where the following must be handled: sulfur, pulp liquor, acid dyestuffs, bleaching solutions, flue gases and many chemical compounds.
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Machinability
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Substantially tougher than mild steel, 317LMN requires heavy feeds and slow speeds to overcome its tendency towards work hardening.
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Forming
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A high tendency to work harden can cause difficulty in forming 317LMN. Intermediate annealing is recommended on deep drawing applications. Generous forming radii should be provided.
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Welding
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Weldable by all common methods. Because of the carbon restriction in 317LMN, carbide precipitation along the weld boundaries will be minimized. Filler metal should be either 317L, LM or LMN, although Alloy 625 (Inconel tm) has been successfully employed.
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Heat Treatment
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See annealing. This material can only be hardened by cold working.
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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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Cold Working
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This alloy has a high tendency to harden during cold work, but most common cold work procedures can be effectively employed.
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Annealing
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Anneal at 2050 - 2100 F and air cool.
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Hardening
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This material can only be hardened by cold working.
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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 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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Thermal Conductivity
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9.4
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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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Plate |
Condition |
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Annealed |
Temper |
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70 |
Tensile Strength |
|
85 |
Yield Strength |
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40 |
Elongation |
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48 |
Reduction of Area |
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50 |
Brinnell |
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84 |
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Form |
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Plate |
Condition |
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Annealed |
Temper |
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1000 |
Tensile Strength |
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73 |
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Form |
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Plate |
Condition |
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Annealed |
Temper |
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1200 |
Tensile Strength |
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67 |
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Form |
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Plate |
Condition |
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Annealed |
Temper |
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1400 |
Tensile Strength |
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51 |
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Form |
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Plate |
Condition |
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Annealed |
Temper |
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1500 |
Tensile Strength |
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40 |
Videos :
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MSO currently has no videos available for this grade.
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