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316L Stainless Steel Sheet & Plate

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Stainless Steel Sheet & Plate 316L (UNS S31603,1.4404)

At DNYA Stainless Steel, we supply high-quality 316L Stainless Steel Sheets & Plates, a low-carbon, molybdenum-bearing austenitic stainless steel that offers exceptional corrosion resistance, especially in chloride-rich and acidic environments. As a modified version of standard 316, 316L (UNS S31603 / EN 1.4404) offers improved weldability and reduced risk of intergranular corrosion, making it ideal for welded structures and hygienic applications.

 

From chemical processing plants to marine equipment and food-grade surfaces, 316L is the trusted material of choice across industries demanding durability, hygiene, and resistance to harsh elements.

 

What is 316L Stainless Steel?

316L stainless steel is the low-carbon version of 316 stainless steel, containing 2–3% molybdenum for enhanced pitting and crevice corrosion resistance. The reduced carbon content (≤0.03%) improves its resistance to sensitization, which can occur during welding or long-term high-temperature exposure.

 

This makes 316L especially suited for fabricated components, pressure vessels, and sanitary applications, where corrosion resistance and structural integrity are critical.

 

Key Features 

  • Outstanding Corrosion Resistance
    Suitable for usage in salty, chemical, and acidic conditions.

  • Improved Resistance to Pitting and Crevice Corrosion
    Thanks to its molybdenum content.

  • Excellent Weldability
    Low carbon content prevents carbide precipitation during welding.

  • Hygienic & Easy to Clean
    Widely used in food, medical, and pharmaceutical industries.

  • Good High-Temperature Resistance
    Performs up to 870°C (continuous) and 925°C (intermittent).

  • Non-Magnetic in Annealed Condition
    May become slightly magnetic after cold working.

Available Thickness

3/16″
1/4″
5/16″
3/8″
7/16″
1/2″
9/16″
5/8″
3/4″
7/8″
1″
1 1/8″
4.8mm
6.3mm
7.9mm
9.5mm
11.1mm
12.7mm
14.3mm
15.9mm
19mm
22.2mm
25.4mm
28.6mm
1 1/4″
1 3/8″
1 1/2″
1 5/8″
1 3/4″
2″
2 1/4″
2 1/2″
2 3/4″
3″
3 1/4″
3 1/2″
31.8mm
34.9mm
38.1mm
41.3mm
44.5mm
50.8mm
57.2mm
63.5mm
69.9mm
76.2mm
82.6mm
88.9mm
3 3/4″
4″
4 1/4″
4 1/2″
4 3/4″
5″
5 1/4″
5 1/2″
5 3/4″
6″
95.3mm
101.6mm
108mm
114.3mm
120.7mm
127mm
133.4mm
139.7mm
146.1mm
152.4mm

316l-stainless-steel-sheet-plate

Application

  • Automotive
  • Chemical and Pharmaceutical
  • Fertilizer
  • Food Processing and Handling
  • Manufacturing
  • Mining
  • Oil & Gas
  • Phosphate Mining

Standard

  • ASTM A240 / A240M
  • ASTM A276 / A276M
  • ASTM A312 / A312M
  • ISO 15510
  • EN 10088-2
  • IN 10204
  • HE G4304
  • HE G4305
  • ASME SA240 / SA240M
  • ASME SA312 / SA312M

Worldwide equivalents of grade 316

(USA: AISI, ASTM, UNS)

Country
Standard
Grade
USA
ASTM
316 / 316L
USA
AISI
316 / 316L
Germany
DIN
X5CrNiMo17-12-2
Europe
EN
1.4401 / 1.4404
UK
BS
316S31 / 316S11
Japan
JIS
SUS316 / SUS316L
International
ISO
316 / 316L

Corrosion Resistance

  • Marine and Chloride Environments: 316L is particularly resistant to corrosion in marine environments and in the presence of chlorides, which makes it suitable for use in coastal areas, chemical processing, and other environments where chloride exposure is a concern.
  • Pitting and Crevice Corrosion: The alloy’s resistance to pitting and crevice corrosion is notably good, but it can be affected by extremely high chloride concentrations. It typically performs well in environments with moderate chloride levels.
  • Stress Corrosion Cracking: 316L exhibits good resistance to stress corrosion cracking (SCC) in most environments. However, in certain conditions—such as very high temperatures and highly chlorinated environments—SCC can still be a risk.
  • Oxidation Resistance: 316L performs well in oxidative environments and can withstand high temperatures, but prolonged exposure to high temperatures (above 870°C or 1600°F) might lead to oxidation and scaling.
  • Chemical Resistance: It has good resistance to a wide range of chemicals, including acids like sulfuric and phosphoric acids, and is often used in chemical processing industries for this reason.
  • Passivation: The corrosion resistance of 316L can be enhanced through passivation, a process that removes free iron from the surface and enhances the chromium oxide layer that provides corrosion resistance.

Chemical Composition of Stainless Steel 316L

Element
Composition (% by weight)
Carbon (C)
0.03 max
Manganese (Mn)
2.00 max
Silicon (Si)
1.00 max
Phosphorus (P)
0.045 max
Sulfur (S)
0.03 max
Chromium (Cr)
16.00 – 18.00
Nickel (Ni)
10.00 – 14.00

Physical Properties of Stainless Steel 316L

Property
Value
Density
~8.0 g/cm³ (8000 kg/m³)
Melting Point
~1375-1400°C (2500-2550°F)
Modulus of Elasticity
~193-200 GPa (28,000-29,000 ksi)
Thermal Conductivity
~16 W/m·K
Thermal Expansion
~16 × 10⁻⁶ /°C (9 × 10⁻⁶ /°F)
Specific Heat Capacity
~500 J/kg·K
Electrical Resistivity
~0.72 µΩ·m

Mechanical Properties of Stainless Steel 316L

Property
Value
Yield Strength
~170 MPa (25 ksi)
Tensile Strength
~480 MPa (70 ksi)
Elongation
~40% (in 50 mm gauge length)
Hardness
~85 HRB (Rockwell B)
Modulus of Elasticity
~193-200 GPa (28,000-29,000 ksi)
Poisson’s Ratio
~0.30
Fatigue Strength
~230 MPa (33.4 ksi)

Fabrication Data

  • Cutting: Can be cut using plasma arc, water jet, laser, or shearing methods.
  • Welding: 316L is well-suited for welding, including TIG, MIG, and stick welding. Use appropriate filler materials and ensure proper shielding gas to prevent contamination.
  • Machining: Stainless steel 316L can be machined using standard machining techniques, though carbide tools are recommended due to its toughness.
  • Heat Treatment: Generally not heat-treated, but annealing can be done at around 1040-1150°C for stress relief.
  • Cold Working: Can be cold worked to improve hardness and strength. However, ensure proper annealing to avoid brittleness.
  • Polishing: Polished surfaces can be achieved using mechanical polishing or chemical treatments to improve corrosion resistance and appearance.
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For more information or to request a quote, contact us today to discuss how Stainless Steel Plate 304H can meet your specific project needs.