Grade 316H Stainless Steel – High-Temperature Strength Optimized

Description

Grade 316H combines 316's chloride corrosion resistance with enhanced high-temperature performance, engineered for sustained service in elevated thermal environments. With a carbon range of 0.04-0.10%, it delivers improved creep resistance and mechanical stability at temperatures above 500°C, outperforming 316 and 316L in long-term heat-exposed applications. Its austenitic structure ensures non-magnetic properties, while the higher carbon content boosts tensile strength and creep resistance under thermal stress. Unlike standard 316, 316H is specifically formulated for high-heat, corrosive environments such as petrochemical processing and power generation.

Chemical Composition (wt%)

C: 0.04-0.10, 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 ≥ 520 MPa, Yield Strength ≥ 205 MPa, Elongation ≥ 40%, Hardness ≤ 215 HB

Advantages

Superior high-temperature creep resistance; balanced chloride corrosion and heat resistance; non-magnetic; excellent thermal stability; suitable for pressure-containing components.

Applications

High-temperature chemical reactors, boiler tubes, petrochemical processing equipment, power generation systems, and heat exchangers operating at 500°C+.

Equivalent Grades

UNS S31609, EN 1.4406, GB 07Cr17Ni12Mo2, SUS316H

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.