316H Stainless Steel: High-Carbon Molybdenum Grade For High-Temperature Durability

Overview: 316H is the high-carbon variant of 316 stainless steel, with a carbon content of 0.04-0.10%. It integrates the corrosion resistance of 316 (via molybdenum) with enhanced high-temperature strength and creep resistance, suitable for high-heat, corrosive environments.

Chemical Composition (wt%): Chromium (Cr): 16.0-18.0; Nickel (Ni): 10.0-14.0; Molybdenum (Mo): 2.0-3.0; Carbon (C): 0.04-0.10; Manganese (Mn): ≤2.00; Silicon (Si): ≤1.00; Phosphorus (P): ≤0.045; Sulfur (S): ≤0.030; Iron (Fe): Balance.

Typical Mechanical Properties (Annealed Condition): Tensile Strength: ≥515 MPa; Yield Strength: ≥205 MPa; Elongation: ≥40%; Hardness (Brinell): ≤217 HB.

Core Advantages: Improved creep resistance and high-temperature strength (suitable for elevated temperatures up to 800°C); molybdenum-enhanced corrosion resistance vs. 304H; good formability and weldability; austenitic structure for stable performance at high temps.

Applications: Chemical processing equipment, petrochemical refinery components, high-temperature furnaces, marine parts exposed to both high temperatures and corrosive media, heat exchangers, and steam turbines.

Equivalent Grades: UNS S31609; EN 1.4406; JIS SUS316H; GB/T 07Cr17Ni12Mo2.

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.