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Published: November 8, 2025 | Updated: November 8, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence
In the specialized field of stainless steels compliant with ASTM A240/A240M and ASME SA240/SA240M standards, 316Ti stands out as a titanium-stabilized austenitic grade optimized for high-temperature service where carbide precipitation could compromise integrity.
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, power, and marine.
If you're determining safe operating limits for a boiler or exhaust system under ASME SA240/SA240M, understanding 316Ti's maximum temperature rating is crucial. This guide details its temp limits, influencing factors, and comparisons, based on ASTM A240/A240M and ASME SA240/SA240M standards and our mill data.
From our production lines, we've seen 316Ti's rating in action: In a 2024 Australian power plant, our 316Ti tubes under ASTM A240 /A240M operated at 700°C continuous without IGC, extending life by 25% per client reports. Compliant with ASME SA240/SA240M for pressure apps, 316Ti's density of 8.00 g/cm³ supports stable performance. Let's explore the ratings, from composition to high-temp data, to guide your application.
316Ti stainless steel, compliant with ASTM A240/A240M and ASME SA240/SA240M, has a maximum continuous service temperature of 815-870°C (1500-1600°F) and intermittent up to 925°C (1700°F), thanks to titanium stabilization preventing IGC in the sensitizing range (425-815°C). It retains >70% strength at 815°C, with creep resistance superior to non-stabilized 316. Density 8.00 g/cm³ and PREN 23-28 enhance its use in oxidizing conditions up to these limits.
Compared to 316L, 316Ti offers better high-temp rating without sensitization. Ideal for exhausts and boilers; Gangsteel stocks 1-200mm with certs.
The chemical composition of 316Ti, as specified in ASTM A240/A240M and ASME SA240/SA240M, is tailored for maximum temperature resistance, with titanium ensuring stability against carbide formation.
|
Element |
% Range or Max |
Role in Temperature Rating |
|---|---|---|
|
Carbon (C) |
0.08 max |
Low C with Ti binding allows high-temp use without IGC. |
|
Manganese (Mn) |
2.00 max |
Aids matrix stability at elevated temps. |
|
Silicon (Si) |
0.75 max |
Enhances oxidation resistance up to 925°C. |
|
Phosphorus (P) |
0.045 max |
Limited for creep resistance at high temps. |
|
Sulfur (S) |
0.030 max |
Controlled to avoid embrittlement in heat. |
|
Chromium (Cr) |
16.00-18.00 |
Forms protective oxide for oxidation up to 870°C. |
|
Molybdenum (Mo) |
2.00-3.00 |
Boosts pitting at moderate high temps. |
|
Nickel (Ni) |
10.00-14.00 |
Stabilizes austenite for temp range retention. |
|
Titanium (Ti) |
5x(C+N) min, 0.70 max |
Key stabilizer; enables max temp without sensitization. |
|
Nitrogen (N) |
0.10 max |
Strengthens for high-temp creep. |
|
Iron (Fe) |
Balance |
Base for thermal stability. |
This composition under ASTM A240/A240M supports 316Ti's rating, with Ti extending usable range.
Gangsteel's 316Ti meets ASME SA240/SA240M for high-temp apps.
316Ti's mechanical properties, per ASTM A240/A240M and ASME SA240/SA240M, ensure performance across its temperature range.
|
Property |
Minimum Value |
At 600°C Typical |
Notes on Max Temp |
|---|---|---|---|
|
Tensile Strength (MPa) |
515 |
350-450 |
Retains >70% at 815°C; drops <20% at max continuous. |
|
Yield Strength (MPa) |
205 |
150-200 |
Good creep at 650-870°C. |
|
Elongation (%) |
40 |
30-40 |
Maintains ductility up to 925°C intermittent. |
|
Hardness (HRB max) |
95 |
- |
Soft; no hardening at high temps. |
|
Creep Strength (MPa, 100,000 hrs at 600°C) |
- |
~100 |
Stable due to Ti; limits max continuous to 870°C. |
Max temp ensures no creep failure; intermittent allows short exposures to 925°C.
Physical traits of 316Ti, compliant with ASTM A240/A240M and ASME SA240/SA240M, aid its high-temp rating.
|
Property |
Value |
Notes on Temperature Range |
|---|---|---|
|
Density (g/cm³) |
8.00 |
Consistent up to melting; aids calcs at high temps. |
|
Melting Range (°C) |
1370-1400 |
Defines upper limit beyond max service. |
|
Thermal Conductivity (W/m·K) |
14.6 at 100°C; 16.3 at 500°C |
Increases with temp for better dissipation at max. |
|
Specific Heat (J/kg·K) |
500 |
Efficient energy handling in range -196 to 815°C. |
|
Coefficient of Thermal Expansion (10^-6 /°C) |
16.5 (20-100°C); 17.5 (20-500°C) |
Low to minimize stress up to 870°C. |
|
Modulus (GPa) |
193 |
Retains stiffness in service range. |
|
Electrical Resistivity (μΩ·cm) |
74 |
Moderate; stable at high temps. |
These ensure integrity at max rating of 870°C continuous.
For uns stainless steel plates, 316Ti offers high-temp advantages.
316Ti's corrosion, per ASTM A240/A240M and ASME SA240/SA240M, is strong at its max temp with Ti preventing IGC.
316Ti welds well, Ti stabilizing at max temp per ASTM A240/A240M. No preheat; PWHT not needed.
Gangsteel's 316Ti SA240 Type 316Ti withstands high-temp fab.
316Ti's rating suits exhausts (925°C intermittent), boilers (870°C continuous), reactors (IGC resistance).
In Gangsteel's supply to U.S. power, 316Ti operated at 750°C without failure.
Equivalents: EN 1.4571 (max 815°C). For A240 GR 316Ti, rating matches.
Gangsteel stocks 316Ti at $3,200-3,800/ton FOB. 1-200mm thick, ASME SA240 certs with temp data. Contact for ratings.
Q: What is the maximum continuous service temperature for 316Ti stainless steel?
A: The maximum continuous service temperature for 316Ti is 815-870°C (1500-1600°F), depending on environment, with Ti preventing IGC.
Q: What is the maximum intermittent service temperature for 316Ti?
A: The maximum intermittent service temperature is 925°C (1700°F) for short exposures, limited by oxidation and creep.
Q: How does temperature affect 316Ti's mechanical properties?
A: At 600°C, tensile drops ~20%, yield ~15%, but retains >70% strength up to 815°C due to Ti stabilization.
Q: What is the sensitizing temperature range for 316Ti, and how does Ti help?
A: Sensitizing range is 425-815°C, but Ti binds carbides as TiC, preventing IGC and allowing safe use.
Q: Is 316Ti suitable for cryogenic temperatures?
A: Yes, down to -196°C with good toughness (impact ~100 J), no brittle transition.
Q: How does 316Ti compare to 316L in temperature range?
A: 316Ti has similar range but better IGC resistance at high temps due to Ti; 316L for ambient.
Q: What standards define the temperature rating for 316Ti?
A: ASTM A240/A240M and ASME SA240/SA240M provide guidelines; ratings based on creep/oxidation data.
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