316Ti Stainless Steel What Is 316Ti SS

316Ti Stainless Steel What Is 316Ti SS

Published: November 12, 2025 | Updated: November 12, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence

In the standardized world of stainless steels compliant with ASTM A240/A240M and ASME SA240/SA240M, 316Ti SS is a titanium-stabilized austenitic stainless steel — an enhanced version of the popular 316 SS (18% chromium, 10% nickel, 2–3% molybdenum) specifically engineered to prevent intergranular corrosion (IGC) during welding and high-temperature service by adding titanium to bind carbon and protect chromium from depletion.

As a premier producer and exporter based in China, Gangsteel has supplied thousands of tons of 316Ti SS, meeting ASTM A240/A240M specs for plates and sheets, to industries like petrochemical, pharmaceutical, and marine.

If you're asking what is 316Ti SS under ASME SA240/SA240M for selecting components in welded pressure vessels, heat exchangers, or exhaust systems where long-term durability in corrosive and elevated temperatures is required, this guide clearly explains 316Ti SS — its composition, purpose, benefits, and applications — based on ASTM A240/A240M – 316Ti (UNS S31635) and ASME SA240/SA240M – 316Ti standards and our mill data.

From our production lines, 316Ti SS in action: In a 2024 U.S. power plant retrofit, our 316Ti SS plates under ASTM A240 /A240M — titanium-stabilized to resist IGC — operated at 600°C without degradation for 12 months, outperforming standard 316 SS by eliminating sensitization, as per client inspection reports. Compliant with ASME SA240/SA240M for pressure apps, 316Ti SS's density of 8.00 g/cm³ supports robust, lightweight designs. Let's explain what 316Ti SS is, from chemistry to real-world use, to help you choose wisely.

Summary

What is 316Ti SS?It is a titanium-stabilized austenitic stainless steel (UNS S31635) based on 316 SS alloy (18Cr–10Ni–2Mo), with 0.70% max titanium added to prevent intergranular corrosion (IGC) at 425–815°C by forming TiC instead of Cr-carbides. Under ASTM A240/A240M and ASME SA240/SA240M, it offers tensile 515 MPa min, yield 205 MPa min, elongation 40% min, hardness 95 HRB max, and PREN 23–28. Density 8.00 g/cm³. Equivalent to EN 1.4571. Superior to 316L SS in welded high-temp service; ideal for reactors and exhausts. Gangsteel stocks 1–200mm with certs.

Chemical Composition: What Makes 316Ti SS Special

The chemical composition of 316Ti SS, as per ASTM A240/A240M – 316Ti (UNS S31635) and ASME SA240/SA240M – 316Ti, is the foundation of what 316Ti SS is — a stabilized 316.

316Ti SS explained: 316 SS + Ti stabilization — Ti forms TiC/TiN, leaving Cr free for passivation.

Gangsteel's 316Ti SS ensures Ti ratio >5x(C+N) for full stabilization.

For uns stainless steel plates, 316Ti SS composition verified.

Mechanical Properties: Strength and Ductility

316Ti SS's mechanical properties, per ASTM A240/A240M – 316Ti and ASME SA240/SA240M – 316Ti, show what 316Ti SS is — strong and formable.

Ti does not harden — keeps ductility.

Physical Properties: Design Essentials

Physical properties of 316Ti SS, compliant with ASTM A240/A240M – 316Ti and ASME SA240/SA240M – 316Ti, support what 316Ti SS is in engineering.

Same as 316/316L — Ti adds no physical change.

Corrosion Resistance: Why 316Ti SS Exists

What 316Ti SS isfor: Preventing IGC in welded/high-temp service.

• Pitting: PREN 23–28 (same as 316/316L).
• IGC: Ti binds C — no Cr depletion at 425–815°C.
• Uniform: <0.1 mm/year in acids.
• SCC: Good in chlorides to 100°C.

316Ti SS explained: Use when welding + heat risks sensitization in 316/316L.

Weldability: 316Ti SS's Superpower

What 316Ti SS isin welding: No PWHT needed.

• Filler: ER316L (low C).
• Preheat: None.
• Interpass: Max 150°C.
• Result: Full strength, no IGC.

Gangsteel's 316Ti SS SA240 Type 316Ti welds clean.

Applications: Where 316Ti SS Shines

What 316Ti SS is used for:

• Chemical reactors(welded, 500–800°C).
• Exhaust systems(thermal cycling).
• Heat exchangers(steam/acid).
• Boilers(superheater tubes).

Not needed for ambient — use 316L SS to save cost.

316Ti SS vs 316L SS: Quick Diff

316Ti SS explained: 316L SS + heat protection.

Equivalents: Global Names

What 316Ti SS isworldwide:

• EN/DIN: 1.4571 (X6CrNiMoTi17-12-2)
• JIS: SUS316Ti
• GB: 06Cr17Ni12Mo2Ti
• SS: 2350

All = 316 SS + Ti.

Sourcing from Gangsteel: Stock & Price

Gangsteel stocks 316Ti SS plates 1–200mm at $3,200–3,800/ton FOB. MOQ 1 ton. 3.1 certs. Contact: admin@gangsteel.com

FAQ: What Is 316Ti SS Explained

Q: What is 316Ti SS?

A: 316Ti SS is 316 stainless steel with titanium added (0.70% max) to prevent intergranular corrosion during welding and high-temperature service (425–815°C).

Q: Why is titanium added to 316Ti SS?

A: Titanium binds carbon to form TiC, preventing chromium carbides that cause IGC — allowing safe welding without post-weld heat treatment.

Q: Is 316Ti SS magnetic?

A: No — fully austenitic, non-magnetic in annealed condition.

Q: Can 316Ti SS be used for food contact?

A: Yes — FDA-compliant, non-toxic, used in pharmaceutical and food equipment.

Q: What is the difference between 316Ti SS and 316L SS?

A: 316L SS has lower carbon (0.03%) for ambient welding; 316Ti SS has titanium for high-temp IGC resistance.

Q: What does the "Ti" in 316Ti SS stand for?

A: Ti = Titanium — the stabilizing element.

Q: Where to buy 316Ti SS?

A: Gangsteel — mill-direct, $3,200–3,800/ton FOB, 1–200mm thick. Email: admin@gangsteel.com