Grade 316L Stainless Steel – Low-Carbon Weld Integrity Specialist

Description

Grade 316L represents the low-carbon evolution of 316, engineered specifically to address intergranular corrosion risks in welded assemblies. With carbon content limited to ≤0.03%, it prevents chromium carbide precipitation in the heat-affected zone during welding, eliminating the need for post-weld annealing-a critical advantage for large or complex fabrications. It retains 316's exceptional molybdenum-enhanced corrosion resistance, making it the premier choice for welded components in harsh environments. Unlike standard 316, 316L offers enhanced ductility and weld integrity, making it the gold standard for applications where corrosion resistance and weldability are equally critical.

Chemical Composition (wt%)

C ≤ 0.03, Cr: 16.00-18.50, Ni: 10.00-14.00, Mo: 2.00-3.00, Mn ≤ 2.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030

Mechanical Properties

Tensile Strength ≥ 480 MPa, Yield Strength ≥ 175 MPa, Elongation ≥ 40%, Hardness ≤ 215 HB

Advantages

Sensitization-resistant; superior chloride corrosion resistance; excellent weldability without post-weld treatment; enhanced ductility; non-magnetic; ideal for heavy welded structures.

Applications

Chemical storage tanks, marine vessel hull components, pharmaceutical processing equipment, welded heat exchangers, and offshore platform parts.

Equivalent Grades

UNS S31603, EN 1.4404, GB 022Cr17Ni12Mo2, SUS316L

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.