316Ti Stainless Steel 316Ti Steel Properties

316Ti Stainless Steel 316Ti Steel Properties

Published: November 11, 2025 | Updated: November 11, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence

In the ever-evolving world of stainless steels compliant with ASTM A240/A240M and ASME SA240/SA240M standards, 316Ti stainless steel stands out as a titanium-stabilized austenitic grade whose steel properties are optimized for superior performance in high-temperature and corrosive environments.

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 ranging from petrochemical and pharmaceutical to marine and power generation.

If you've ever wondered about the steel properties of 316Ti or how its titanium addition enhances durability compared to standard 316, this guide provides a comprehensive overview. We'll explore its key properties, from mechanical and physical to corrosion resistance, based on ASTM A240/A240M and ASME SA240/SA240M standards and our mill data.

From our mill floors, we've seen 316Ti's properties in action: In a 2024 European chemical plant upgrade, our 316Ti plates—stabilized with titanium to prevent sensitization at 500-800°C—outlasted standard 316 by 40% in acidic heat exchangers, as confirmed by client corrosion monitoring. Often spec'd under ASTM A240 /A240M for plates and sheets or ASME SA240/SA240M for pressure vessel use, 316Ti's density of 8.00 g/cm³ and thermal conductivity of ~14.6 W/m·K support efficient designs. Let's dive into the details, starting with its composition and building to real-world properties, so you can see why this grade might be the upgrade your project needs.

Summary

316Ti stainless steel, compliant with ASTM A240/A240M and ASME SA240/SA240M, offers mechanical properties like tensile strength 515 MPa min, yield 205 MPa min, elongation 40% min, and hardness 95 HRB max, with physical traits including density 8.00 g/cm³, melting range 1370-1400°C, and thermal expansion 16.5 × 10^-6 /°C. Titanium stabilization provides corrosion resistance with PREN 23-28, excelling in IGC prevention at 425-815°C. Superior to 316L in sustained heat; ideal for chemical reactors. Density 8.00 g/cm³ aids calcs. Gangsteel stocks 1-200mm with certs for custom needs.

Chemical Composition: The Foundation of 316Ti's Properties

The chemical makeup of 316Ti, as defined in ASTM A240/A240M and ASME SA240/SA240M, is finely tuned to support its steel properties, with titanium playing a key role in high-temp stability.

Here's the standard composition (heat analysis, % by weight):

This composition results in a theoretical PREN of 23-28, close to measured values, enabling precise property predictions. Gangsteel's AOD refining achieves purer melts, with property variations <5%, ensuring consistent performance.

At Gangsteel, our 316Ti stock is available in uns stainless steel plates with verified composition measurements.

Mechanical Properties: Strength and Durability

316Ti's mechanical properties, as per ASTM A240/A240M and ASME SA240/SA240M, are highly tunable through heat treatment, making it adaptable for various uses. In the annealed condition (standard for most applications), it offers:

Heat treatment: Anneal at 1050-1150°C, quench; no hardening needed as it's austenitic. This maintains a stable microstructure, aiding consistent properties.

Gangsteel's 316Ti stock achieves upper ranges, with SA240 Type 316Ti for pressure-rated apps.

Physical Properties: Supporting Practical Use

Physical traits of 316Ti, compliant with ASTM A240/A240M and ASME SA240/SA240M, complement its steel properties.

These make it suitable for environments from -196°C (cryogenic) to 815°C (elevated), with density key for buoyancy in marine designs.

Gangsteel's 316Ti is available in A240 GR 316Ti for custom cuts.

Corrosion Resistance and Weldability: Key Properties

316Ti's corrosion resistance is its hallmark, with Ti preventing carbide precipitation (sensitization) at 425-815°C, avoiding intergranular corrosion (IGC) that plagues standard 316 after welding or prolonged heat. Molybdenum (2-3%) gives a PREN of 23-28, excelling against pitting in chlorides (e.g., seawater, CPT ~25°C) and crevice corrosion better than 304 (PREN 18-20).

• Uniform Corrosion: Rate <0.1 mm/year in dilute acids like H2SO4 or HNO3 at room temp; stable in boiling acetic acid.
• IGC: Resistant per ASTM A262 Practice C (Huey test); Ti binds C as TiC/TiN, preserving Cr.
• SCC: Good in chlorides up to 1000 ppm at 100°C; better than 304 in boiling MgCl2.
• Pitting/Crevice: CPT 25-35°C in 6% FeCl3; suitable for marine but use 904L for severe.
• High-Temp: No sensitization after 1000 hours at 600°C; ideal for exhausts.

Weldability is excellent: Use ER316L or E316LT filler, no preheat for thin sections. Ti eliminates need for post-weld annealing in most cases. Machinability is fair (60% of carbon steel), and formability is excellent with elongation >40%.

Gangsteel's 316Ti stock is ideal for uns stainless steel plates, with enhanced corrosion properties.

Applications: Where Properties Excel

316Ti's properties make it versatile for high-temp and corrosive settings:

• Chemical Processing: Heat exchangers, reactors (resists IGC in acids).
• Food & Pharmaceutical: Equipment (non-reactive, easy clean).
• Marine & Offshore: Piping, fittings (chloride resistance).
• Power Generation: Boiler parts, exhausts (high-temp stability).
• Automotive: Exhaust systems (thermal cycling without sensitization).

In a 2023 Gangsteel supply to a U.S. pharmaceutical plant, 316Ti tubes handled sterilizing steam at 150°C without corrosion for 2 years, outperforming 316L. It's not for ultra-corrosive like 904L, but excels where heat is a factor.

Equivalents: Global Alternatives

316Ti's equivalents include UNS S31635, EN 1.4571, and JIS SUS316Ti, all with similar Ti stabilization. Gangsteel offers dual-cert stock for easy swaps.

Sourcing 316Ti from Gangsteel: Stock and Pricing

Gangsteel stocks 316Ti plates (1-200mm thick) at $3,200-3,800/ton FOB, with ASME SA240 certs. MOQ 1 ton; lead 7-30 days. Custom equivalents available.

FAQ: 316Ti Stainless Steel Properties Questions Answered in Detail

Q: What are the mechanical properties of 316Ti stainless steel?

A: 316Ti has tensile strength of 515 MPa min, yield strength of 205 MPa min, elongation of 40% min, and hardness of 95 HRB max, with good creep resistance at elevated temperatures due to Ti stabilization.

Q: What is the density of 316Ti stainless steel?

A: The density of 316Ti is 8.00 g/cm³ (or 0.289 lb/in³), slightly higher than 304 (7.93 g/cm³) due to Mo, but consistent for weight calculations in designs like tanks (e.g., 1m² x 10mm = 80 kg).

Q: What is the hardness of 316Ti stainless steel?

A: Maximum hardness is 95 HRB or 217 HB in annealed condition, making it soft for machining; cold work can raise to 200 HB, but Ti prevents over-hardening from carbides.

Q: What is the yield strength of 316Ti stainless steel?

A: The minimum yield strength of 316Ti is 205 MPa (0.2% offset), with typical values 220-300 MPa in annealed state, retaining strength at high temps, dropping <10% at 500°C due to Ti.

Q: What is the corrosion resistance of 316Ti stainless steel?

A: 316Ti offers excellent corrosion resistance, with Ti preventing IGC at 425-815°C and Mo enhancing pitting (PREN 23-28, CPT 25-35°C in FeCl3), uniform rate <0.1 mm/year in dilute acids, and good SCC in chlorides up to 1000 ppm at 100°C.

Q: What is the thermal conductivity of 316Ti stainless steel?

A: The thermal conductivity of 316Ti is 14.6 W/m·K at 100°C, rising to 16.3 W/m·K at 500°C, similar to 316 and supporting heat dissipation in exchangers, though lower than carbon steel (50 W/m·K).

Q: What is the tensile strength of 316Ti stainless steel?

A: The minimum tensile strength of 316Ti is 515 MPa, with typical values 550-700 MPa in annealed state, retaining high strength at elevated temps, dropping <20% at 600°C thanks to Ti.