316Ti Stainless Steel Density & Mechanical Properties

316Ti Stainless Steel Density & Mechanical Properties

Published: November 8, 2025 | Updated: November 8, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence

316Ti stainless steel, designated as UNS S31635 in the Unified Numbering System, EN 1.4571 in European standards, JIS SUS316Ti in Japanese specs, and AISI 316Ti in American nomenclature, is a titanium-stabilized austenitic grade that builds on the 316 family for enhanced high-temperature performance.

As a premier producer and exporter based in China, Gangsteel has supplied thousands of tons of ASME SA240 316Ti and ASTM A240 316Ti plates, sheets, and bars to global industries including petrochemical, pharmaceutical, and marine.

If you're evaluating this material for applications requiring robust mechanical integrity and corrosion resistance, understanding its density and mechanical properties is essential. This in-depth guide covers these aspects, with comparisons to related grades, based on industry standards and our mill data.

From our production facilities, we've witnessed 316Ti's reliability: In a 2024 German chemical processing plant, our ASME SA240 Type 316Ti plates demonstrated superior density consistency and mechanical strength under thermal cycling, outperforming standard 316 by maintaining yield at elevated temperatures, as per client tensile tests. Often specified under ASTM A240 /A240M for general use or ASME SA240/SA240M for pressure vessels, 316Ti's properties make it a versatile choice. Let's explore its density, mechanical attributes, and how they contribute to its durability.

Summary

316Ti stainless steel (UNS S31635, EN 1.4571, JIS SUS316Ti, AISI 316Ti) has a density of 8.00 g/cm³ (0.289 lb/in³), providing a solid foundation for weight-efficient designs in high-temp and corrosive environments. Its mechanical properties include a minimum tensile strength of 515 MPa, yield strength of 205 MPa, elongation of 40%, and hardness of 95 HRB max, with excellent creep resistance up to 815°C due to titanium stabilization.

 Compared to 316L, 316Ti offers superior high-temp durability against intergranular corrosion, while matching general strength. Under standards like ASME SA240 316Ti and ASTM A240 316Ti, it's ideal for chemical reactors and marine piping. Gangsteel stocks 1-200mm thick plates with full certs for global compliance.

Density of 316Ti Stainless Steel: Key Physical Attribute

The density of 316Ti stainless steel is 8.00 g/cm³, a value consistent across standards like ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, and AISI 316Ti. This density is slightly higher than 304 (7.93 g/cm³) due to the addition of molybdenum and titanium, but it provides excellent structural stability without excessive weight. For practical calculations, a 1m x 1m x 10mm plate weighs approximately 80 kg, making it suitable for applications where mass affects transport or buoyancy, such as offshore platforms.

Density remains stable across heat treatments, as the austenitic structure doesn't undergo significant phase changes. Compared to duplex steels (density ~7.8 g/cm³), 316Ti is denser but offers better formability. In Gangsteel's production, we verify density through precise measurements, ensuring consistency for clients using UNS stainless steel plates in weight-critical designs.

This property integrates well with 316Ti's thermal expansion (16.5 × 10^-6 /°C from 20-100°C), minimizing distortion in heated assemblies, and specific heat capacity (500 J/kg·K), aiding efficient energy handling in high-temp apps.

Mechanical Properties: Strength, Ductility, and Resilience

316Ti's mechanical properties are optimized for demanding environments, with titanium stabilization ensuring performance at elevated temperatures without loss due to sensitization. In the annealed condition, it meets or exceeds specs under ASME SA240 316Ti and ASTM A240 316Ti.

Key mechanical properties (annealed, per ASTM A240):

At high temperatures, 316Ti shines: It retains >70% tensile strength at 815°C, with creep rupture strength ~100 MPa after 100,000 hours at 600°C, outperforming non-stabilized grades. Compared to 316L, 316Ti has similar room-temp properties but better long-term durability in heat due to Ti preventing carbide precipitation.

Gangsteel's 316Ti stock, compliant with EN 1.4571 and JIS SUS316Ti, consistently achieves elongation up to 55%, ideal for deep drawing in food processing equipment.

For pressure vessel use, see our SA240 Type 316Ti offerings.

Corrosion Resistance: Enhanced by Titanium Stabilization

316Ti's corrosion resistance is a major strength, with titanium preventing intergranular corrosion (IGC) by binding carbon at high temperatures (425-815°C), where standard 316 might sensitize. Molybdenum adds pitting protection, giving a PREN of 23-28—effective against chlorides (CPT ~25°C in FeCl3) and crevice attacks.

• Uniform Corrosion: Rate <0.1 mm/year in dilute acids like H2SO4 or HNO3.
• IGC: Resistant per ASTM A262 Practice C; Ti forms stable carbides.
• SCC: Good in boiling MgCl2; better than 304 in chlorides.
• Pitting/Crevice: Superior to 304; suitable for marine but use 904L for severe.

This makes 316Ti durable for prolonged heat exposure, like in exhaust systems. Density 8.00 g/cm³ supports compact designs without corrosion-prone weight.

Compared to 316L, 316Ti handles higher temps better, though both share similar general resistance.

Weldability and Fabrication: Practical Strengths

316Ti is highly weldable, with Ti eliminating need for post-weld annealing to prevent IGC. Use ER316L fillers; no preheat for thin sections. Machinability ~60% of carbon steel, formability excellent with 40% elongation.

Gangsteel's 316Ti A240 GR 316Ti welds cleanly, as proven in A262 tests.

Applications: High-Temp and Corrosive Durability

316Ti's properties suit:

• Chemical Processing: Reactors (IGC resistance).
• Food/Pharma: Equipment (non-reactive).
• Marine: Piping (pitting defense).
• Power: Boiler parts (high-temp strength).
• Automotive: Exhausts (thermal cycling).

In Gangsteel's supply to U.S. pharma, 316Ti endured steam without corrosion.

Equivalents: Global Alternatives

316Ti equivalents: UNS S31635, EN 1.4571, JIS SUS316Ti. Gangsteel offers dual-cert stock.

Sourcing from Gangsteel: Stock and Pricing

Gangsteel stocks 316Ti at $3,200-3,800/ton FOB. 1-200mm thick, ASME SA240 certs. Contact for details.

FAQ: 316Ti Stainless Steel Density & Mechanical Properties Questions Answered

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

A: The density of 316Ti stainless steel (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) is 8.00 g/cm³ (0.289 lb/in³), consistent across standards and forms for accurate weight calculations in designs like pressure vessels.

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

A: 316Ti (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) has tensile strength 515 MPa min, yield strength 205 MPa min, elongation 40% min, hardness 95 HRB max, and impact ~100 J at RT, with excellent creep resistance up to 815°C.

Q: How does density affect 316Ti's applications?

A: At 8.00 g/cm³, 316Ti's density (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) provides stability in marine or structural apps, allowing compact designs without excessive weight—e.g., 80 kg/m² for 10mm plate.

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

A: The minimum yield strength of 316Ti (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) is 205 MPa, with typical 220-300 MPa, retaining well at high temps for durable performance in boilers.

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

A: 316Ti (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) has a maximum hardness of 95 HRB or 217 HB annealed, soft for machining while maintaining durability in corrosive environments.

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

A: The minimum tensile strength of 316Ti (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) is 515 MPa, with typical 550-700 MPa, stable at elevated temps due to Ti.

Q: What is the impact toughness of 316Ti stainless steel?

A: 316Ti (ASME SA240 316Ti, ASTM A240 316Ti, EN 1.4571, JIS SUS316Ti, AISI 316Ti) has impact toughness ~100 J at room temp, maintaining high values at sub-zero for cryogenic apps.