316Ti Stainless Steel What Is 316Ti Explained

316Ti Stainless Steel What Is 316Ti Explained

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 is a titanium-stabilized version of the popular 316 austenitic grade (18% chromium, 10% nickel, 2-3% molybdenum), specifically designed to prevent intergranular corrosion (IGC) during welding and high-temperature service by binding carbon with titanium instead of forming harmful chromium carbides.

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

If you're asking what is 316Ti under ASME SA240/SA240M for material selection in welded pressure vessels or heat exchangers where long-term durability in corrosive and elevated temperatures is required, this guide clearly explains 316Ti — 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 explained in action: In a 2024 U.S. power plant retrofit, our 316Ti plates under ASTM A240 /A240M — titanium-stabilized to resist IGC — operated at 600°C without degradation for 12 months, outperforming standard 316 by eliminating sensitization, as per client inspection reports. Compliant with ASME SA240/SA240M for pressure apps, 316Ti's density of 8.00 g/cm³ supports robust, lightweight designs. Let's explain what 316Ti is, from chemistry to real-world use, to help you choose wisely.

Summary

What is 316Ti?It is a titanium-stabilized austenitic stainless steel (UNS S31635) based on 316 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 in welded high-temp service; ideal for reactors and exhausts. Gangsteel stocks 1–200mm with certs.

Chemical Composition: What Makes 316Ti Special

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

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

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

For uns stainless steel plates, 316Ti composition verified.

Mechanical Properties: Strength and Ductility

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

Ti does not harden — keeps ductility.

Physical Properties: Design Essentials

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

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

Corrosion Resistance: Why 316Ti Exists

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

Weldability: 316Ti's Superpower

What 316Ti isin welding: No PWHT needed.

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

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

Applications: Where 316Ti Shines

What 316Ti 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 to save cost.

316Ti vs 316L: Quick Diff

316Ti explained: 316L + heat protection.

Equivalents: Global Names

What 316Ti isworldwide:

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

All = 316 + Ti.

Sourcing from Gangsteel: Stock & Price

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

FAQ: What Is 316Ti Explained

Q: What is 316Ti stainless steel?

A: 316Ti 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?

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

Q: Is 316Ti magnetic?

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

Q: Can 316Ti be used for food contact?

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

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

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

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

A: Ti = Titanium — the stabilizing element.

Q: Where to buy 316Ti stainless steel?

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