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Published: November 8, 2025 | Updated: November 8, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence
In the rigorous domain of stainless steels compliant with ASTM A240/A240M and ASME SA240/SA240M standards, 316Ti emerges as a titanium-stabilized austenitic grade whose specs are tailored for high-temperature and corrosive service.
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 navigating specs for a pressure vessel or welded component under ASME SA240/SA240M, understanding 316Ti's ASTM requirements is essential. This guide details its specs, ASME SA240 applications, and practical insights, based on ASTM A240/A240M and ASME SA240/SA240M standards and our mill data.
From our production lines, we've seen 316Ti's specs in action: In a 2024 European reactor build, our 316Ti plates under ASTM A240 /A240M met ASME SA240 guide for IGC resistance at 600°C, extending service life by 30% per client audits. Compliant with ASME SA240/SA240M for pressure apps, 316Ti's density of 8.00 g/cm³ supports efficient designs. Let's explore the specs and guide, from composition to sourcing, to equip you for compliance.
316Ti stainless steel under ASTM A240/A240M and ASME SA240/SA240M offers tensile 515 MPa min, yield 205 MPa min, elongation 40% min, and hardness 95 HRB max, with Ti stabilization for IGC resistance up to 815°C. ASME SA240 is the code version of A240 for pressure vessels, requiring certs like MTC 3.1/3.2. Equivalent to EN 1.4571, it's ideal for chemical reactors. Density 8.00 g/cm³, PREN 23-28. Gangsteel stocks 1-200mm with dual certs.
The chemical composition of 316Ti, as specified in ASTM A240/A240M and ASME SA240/SA240M, is optimized for stabilization, with titanium ensuring resistance to carbide precipitation.
|
Element |
% Range or Max |
Role in Specs |
|---|---|---|
|
Carbon (C) |
0.08 max |
Low with Ti for IGC compliance. |
|
Manganese (Mn) |
2.00 max |
Deoxidizer per A240. |
|
Silicon (Si) |
0.75 max |
Oxidation aid. |
|
Phosphorus (P) |
0.045 max |
Impurity limit. |
|
Sulfur (S) |
0.030 max |
Controlled for cleanliness. |
|
Chromium (Cr) |
16.00-18.00 |
Passivation base. |
|
Molybdenum (Mo) |
2.00-3.00 |
Pitting enhancer. |
|
Nickel (Ni) |
10.00-14.00 |
Austenite stabilizer. |
|
Titanium (Ti) |
5x(C+N) min, 0.70 max |
Key for high-temp specs. |
|
Nitrogen (N) |
0.10 max |
Strength booster. |
|
Iron (Fe) |
Balance |
Matrix. |
ASTM A240/A240M requires heat analysis certs; ASME SA240 mirrors for pressure.
Gangsteel's 316Ti meets both for precise specs.
316Ti's mechanical properties, per ASTM A240/A240M and ASME SA240/SA240M, ensure suitability for general and pressure use.
|
Property |
Minimum Value |
Typical Range |
A240 Specs Notes |
|---|---|---|---|
|
Tensile Strength (MPa) |
515 |
550-700 |
Min for all thicknesses. |
|
Yield Strength (MPa) |
205 |
220-300 |
0.2% offset. |
|
Elongation (%) |
40 |
45-55 |
In 50mm gauge. |
|
Hardness (HRB max) |
95 |
80-90 |
Annealed condition. |
|
Brinell (HB max) |
217 |
160-190 |
Converted from HRB. |
|
Impact (Charpy J) |
Not req. |
100+ at RT |
Optional for low-temp. |
A240/A240M specs no heat treatment post-delivery; ASME SA240 for vessel calcs.
For uns stainless steel plates, specs match.
Physical properties of 316Ti, compliant with ASTM A240/A240M and ASME SA240/SA240M, aid design calcs.
|
Property |
Value |
Specs Notes |
|---|---|---|
|
Density (g/cm³) |
8.00 |
For weight under A240. |
|
Melting Range (°C) |
1370-1400 |
High-temp limit. |
|
Thermal Conductivity (W/m·K) |
14.6 (at 100°C) |
For heat apps. |
|
Specific Heat (J/kg·K) |
500 |
Energy calcs. |
|
Thermal Expansion (10^-6 /°C) |
16.5 (20-100°C) |
Distortion control. |
|
Modulus (GPa) |
193 |
Stiffness per SA240. |
|
Electrical Resistivity (μΩ·cm) |
74 |
Non-conductive uses. |
A240 specs no direct physical tests, but Gangsteel's certs include.
316Ti's corrosion, per ASTM A240/A240M and ASME SA240/SA240M, is enhanced by Ti for IGC.
A240 requires optional tests like A262 for IGC.
316Ti is highly weldable per ASTM A240/A240M, with Ti preventing sensitization. Fillers ER316L; no PWHT.
Gangsteel's 316Ti SA240 Type 316Ti fab easily.
316Ti's specs suit chemical reactors (IGC resistance), marine piping (pitting), per A240/A240M.
In Gangsteel's supply to U.S. pharma, A240 316Ti performed without failure.
Equivalents: EN 1.4571 (similar specs). For A240 GR 316Ti, A240 matches.
Gangsteel stocks 316Ti at $3,200-3,800/ton FOB. 1-200mm thick, ASME SA240 certs. Contact for guide.
Q: What are the ASTM specs for 316Ti stainless steel?
A: ASTM A240/A240M specifies 316Ti for plates/sheets with tensile 515 MPa min, yield 205 MPa min, elongation 40% min, hardness 95 HRB max.
Q: What is the ASME SA240 guide for 316Ti?
A: ASME SA240/SA240M mirrors A240 for pressure vessels, requiring certs like MTC 3.1 and optional tests for IGC per A262.
Q: What is the chemical composition per ASTM specs for 316Ti?
A: Per A240, C 0.08 max, Cr 16-18%, Mo 2-3%, Ni 10-14%, Ti 0.70 max, Mn 2 max, Si 0.75 max, P 0.045 max, S 0.03 max, Fe balance.
Q: What mechanical properties are required in ASME SA240 for 316Ti?
A: SA240 requires tensile 515 MPa min, yield 205 MPa min, elongation 40% min for 316Ti plates.
Q: What is the maximum temperature rating in ASTM specs for 316Ti?
A: A240 doesn't specify max temp, but 316Ti rated to 815°C intermittent with Ti stabilization.
Q: How does ASME SA240 differ from ASTM A240 for 316Ti?
A: SA240 is the ASME code version of A240, identical specs but mandatory for BPVC compliance.
Q: What testing is required in ASTM A240 for 316Ti?
A: A240 requires tension tests; optional corrosion (A262) and hardness for 316Ti.
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