JIS G4304 or JIS G4305 Austenitic SUS316LN stainless steel plate/coil

JIS G4304 or JIS G4305 Austenitic SUS316LN stainless steel plate/coil

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Description

Chemical Composition and Mechanical Properties of SUS316LN Stainless Steel

SUS316LN is a low-carbon, nitrogen-enhanced austenitic stainless steel with the following composition:

Element Percentage
Carbon ≤0.035%
Manganese ≤2.00%
Silicon ≤0.75%
Chromium 16.00-18.00%
Nickel 10.00-15.00%
Molybdenum 2.00-3.00%
Nitrogen 0.10-0.20%
Phosphorus ≤0.040%
Sulfur ≤0.03%

Mechanical Properties:

Property Value
Yield Strength (min) 205 MPa
Tensile Strength (min) 515 MPa
Elongation (min) 40%

Applications and Industries Using SUS316LN

SUS316LN is widely used in various industries due to its excellent corrosion resistance and enhanced strength:

  1. Chemical processing equipment
  2. Pulp and paper industry
  3. Pharmaceutical applications
  4. Applications with high magnetic fields
  5. Surgical instruments
  6. Orthopedic implants
  7. Chemical and cryogenic tanks

Manufacturing Process of SUS316LN Stainless Steel

The manufacturing process of SUS316LN 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 SUS316LN with Other Stainless Steel Grades

Grade Nitrogen Content Yield Strength (min) Corrosion Resistance
SUS316LN 0.10-0.20% 205 MPa Excellent
SUS316L ≤0.03% 175 MPa Very Good
SUS316 ≤0.08% 205 MPa Good

SUS316LN offers improved strength and corrosion resistance compared to SUS316 and SUS316L due to its higher nitrogen content.

Corrosion Resistance and Heat Treatment of SUS316LN

SUS316LN 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
  • Provides resistance to sensitization and intergranular corrosion

At HL Steel Company, we offer high-quality SUS316LN stainless steel products tailored to meet your specific industrial needs, ensuring superior performance in corrosive environments and applications requiring high strength.

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