UNS S31635 Stainless Steel – Titanium-Stabilized High-Temp 316 Alloy

Product Overview

UNS S31635 is a titanium-stabilized austenitic stainless steel, derived from S31600 to enhance high-temperature and post-weld corrosion stability. Containing 0.10-0.20% titanium, this grade forms stable carbides that prevent chromium depletion, eliminating sensitization during welding and prolonged heating. It retains the full molybdenum-enhanced chloride corrosion resistance of 316, with improved creep resistance at temperatures up to 800°C. Unlike standard 316, S31635 maintains structural and corrosion integrity in thermal-cycling environments, making it ideal for high-heat corrosive applications.

Chemical Composition (Mass Fraction, %)

C ≤ 0.08, Cr: 16.00-18.50, Ni: 10.00-14.00, Mo: 2.00-3.00, Ti: 0.10-0.20, Mn ≤ 2.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030

Mechanical Properties (Annealed Condition)

Tensile Strength ≥ 520 MPa; Yield Strength ≥ 205 MPa; Elongation ≥ 40%; Hardness ≤ 215 HB

Core Advantages

Titanium stabilization prevents intergranular corrosion; superior high-temperature creep resistance; retains 316-grade chloride protection; non-magnetic; reliable weldability; stable in thermal-cycling conditions.

Typical Applications

High-temperature chemical processing equipment, furnace components, heat exchangers, petrochemical pipelines, and thermal-cycling corrosive systems.

Equivalent Grades

AISI 316Ti, EN 1.4571, GB 06Cr17Ni12Mo2Ti, SUS316Ti

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.