JIS G4304 or JIS G4305 Austenitic SUS317L stainless steel plate/coil

JIS G4304 or JIS G4305 Austenitic SUS317L stainless steel plate/coil

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Description

Chemical Composition and Mechanical Properties of SUS317L Stainless Steel

SUS317L is a low-carbon, molybdenum-bearing austenitic stainless steel with the following composition and properties:

Element Percentage
Carbon ≤0.03%
Manganese ≤2.00%
Silicon ≤0.75%
Chromium 18.00-20.00%
Nickel 11.00-15.00%
Molybdenum 3.00-4.00%
Nitrogen ≤0.10%

Mechanical Properties:

Property Value
Tensile Strength (min) 515 MPa
Yield Strength (min) 205 MPa
Elongation (min) 40%
Hardness (max) 217 HB

Applications and Industries Using SUS317L

SUS317L is widely used in various industries due to its excellent corrosion resistance:

  1. Chemical and petrochemical processing
  2. Pulp and paper industry
  3. Food and beverage processing
  4. Marine applications
  5. Pharmaceutical manufacturing
  6. Oil and gas sourcing
  7. Medical equipment

Manufacturing Process of SUS317L Stainless Steel

The manufacturing process of SUS317L typically involves:

  1. Melting raw materials in an electric arc furnace
  2. Refining the molten metal using AOD or VOD processes
  3. Continuous casting into slabs
  4. Hot rolling to reduce thickness
  5. Cold rolling to achieve final dimensions
  6. Solution annealing at 1050-1150°C, followed by rapid cooling

Comparison of SUS317L with Other Stainless Steel Grades

Grade Molybdenum Content Corrosion Resistance Strength
SUS317L 3.00-4.00% Excellent High
SUS316L 2.00-3.00% Very Good Good
SUS304L – Good Good

SUS317L offers superior corrosion resistance, especially in chloride-containing environments, compared to SUS316L and SUS304L.

Corrosion Resistance and Heat Treatment of SUS317L

SUS317L exhibits excellent corrosion resistance:

  • Highly resistant to pitting and crevice corrosion
  • Suitable for use in marine environments
  • Resistant to many chemicals and acids

Heat treatment:

  • Solution annealing: 1050-1150°C, followed by rapid cooling
  • Does not respond to hardening heat treatments

At HL Steel Company, we offer high-quality SUS317L stainless steel products tailored to meet your specific industrial needs, ensuring superior performance in corrosive environments and high-temperature applications.

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