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Published: November 10, 2025 | Updated: November 10, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence
In the rigorous domain of stainless steels governed by ASTM A240/A240M standards, 316Ti emerges as a titanium-stabilized austenitic grade whose specifications under ASTM A240/A240M are pivotal for ensuring high-temperature stability and corrosion resistance in pressure vessels and welded structures.
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 referencing ASTM A240/A240M standards for 316Ti in a heat exchanger or chemical reactor where compliance, tolerances, and testing are critical, understanding these specifications is essential. This article provides a comprehensive overview of 316Ti's ASTM A240/A240M standards, properties, and insights, based on ASTM A240/A240M and ASME SA240/SA240M standards and our mill data.
From our production lines, we've seen ASTM A240/A240M standards in action: In a 2024 European chemical reactor project, our 316Ti plates under ASTM A240 /A240M met all tolerance and testing requirements for IGC resistance at 600°C, enabling seamless certification, as per client audits. Compliant with ASME SA240/SA240M for pressure apps, 316Ti's density of 8.00 g/cm³ supports precise specifications. Let's delve into the standards, from composition to testing, to equip you for compliance.
316Ti stainless steel under ASTM A240/A240M standards specifies chemical composition (C 0.08% max, Ti 0.70% max), mechanical properties (tensile 515 MPa min, yield 205 MPa min, elongation 40% min), tolerances (thickness ±0.13mm for 3-5mm), and testing (tension E8, optional IGC A262). Density 8.00 g/cm³, PREN 23-28 for pitting. Identical to ASME SA240/SA240M for pressure. Equivalent to EN 1.4571; superior to 316L in heat. Ideal for chemical reactors; Gangsteel stocks 1-200mm with A240 certs.
The chemical composition of 316Ti, as per ASTM A240/A240M, is tightly controlled for stabilization, with titanium ensuring resistance to carbide precipitation.
|
Element |
% Range or Max |
Role in A240 Specs |
|---|---|---|
|
Carbon (C) |
0.08 max |
Max to minimize carbides; Ti binds for IGC. |
|
Manganese (Mn) |
2.00 max |
Max for deoxidation; no min. |
|
Silicon (Si) |
0.75 max |
Max for oxidation. |
|
Phosphorus (P) |
0.045 max |
Strict max for ductility. |
|
Sulfur (S) |
0.030 max |
Max to avoid hot shortness. |
|
Chromium (Cr) |
16.00-18.00 |
Range for passivation. |
|
Molybdenum (Mo) |
2.00-3.00 |
Range for pitting. |
|
Nickel (Ni) |
10.00-14.00 |
Range for austenite. |
|
Titanium (Ti) |
5x(C+N) min, 0.70 max |
Min/max for stabilization. |
|
Nitrogen (N) |
0.10 max |
Max for strength. |
|
Iron (Fe) |
Balance |
Base. |
A240 requires heat analysis certs; Gangsteel's exceed with low P/S.
For uns stainless steel plates, A240 316Ti specs verified.
316Ti's mechanical properties, per ASTM A240/A240M, are tested for compliance.
|
Property |
Minimum Value |
Test Method |
A240 Notes |
|---|---|---|---|
|
Tensile Strength (MPa) |
515 |
ASTM E8 |
For all thicknesses. |
|
Yield Strength (MPa) |
205 |
ASTM E8 |
0.2% offset. |
|
Elongation (%) |
40 |
ASTM E8 |
In 50mm gauge. |
|
Reduction of Area (%) |
Not specified |
- |
Optional. |
|
Hardness (HRB max) |
95 |
ASTM E18 |
Annealed. |
|
Brinell (HB max) |
217 |
ASTM E10 |
Converted. |
|
Impact (Charpy J) |
Not req. |
ASTM A370 |
Optional low-temp. |
A240 specs tension tests per plate; Gangsteel's meet.
For SA240 Type 316Ti, A240 specs detailed.
Physical properties of 316Ti, compliant with ASTM A240/A240M, aid design.
|
Property |
Value |
A240 Notes |
|---|---|---|
|
Density (g/cm³) |
8.00 |
For weight. |
|
Melting Range (°C) |
1370-1400 |
High-temp limit. |
|
Thermal Conductivity (W/m·K) |
14.6 (at 100°C) |
For heat. |
|
Specific Heat (J/kg·K) |
500 |
Energy calcs. |
|
Thermal Expansion (10^-6 /°C) |
16.5 (20-100°C) |
Distortion control. |
|
Modulus (GPa) |
193 |
Stiffness. |
|
Electrical Resistivity (μΩ·cm) |
74 |
Non-conductive. |
A240 implies these for design.
316Ti's corrosion resistance, per ASTM A240/A240M, is enhanced by Ti for IGC.
A240 requires optional A262 for IGC.
316Ti is highly weldable per ASTM A240/A240M, with Ti preventing sensitization. Fillers ER316L.
Gangsteel's 316Ti SA240 Type 316Ti fab without issues.
316Ti's A240 specs suit chemical reactors (IGC resistance), marine piping (pitting).
In Gangsteel's supply to U.S. offshore, A240 316Ti performed without failure.
Equivalents: EN 1.4571 (identical specs). For A240 GR 316Ti, A240 matches.
Gangsteel stocks A240 316Ti at $3,200-3,800/ton FOB. 1-200mm thick, full specs sheets. Contact for PDF.
Q: What are the ASTM A240 specifications for 316Ti stainless steel?
A: ASTM A240 specifications for 316Ti include 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, with tensile 515 MPa min and yield 205 MPa min for plates/sheets.
Q: What is the chemical composition per ASTM A240 for 316Ti?
A: Per ASTM A240, the chemical composition of 316Ti is C 0.08% max, Cr 16-18%, Mo 2-3%, Ni 10-14%, Ti 5x(C+N) min to 0.70% max, Mn 2% max, Si 0.75% max, P 0.045% max, S 0.03% max, N 0.10% max, Fe balance, ensuring stabilization.
Q: What mechanical properties are required in ASTM A240 for 316Ti?
A: ASTM A240 requires tensile strength 515 MPa min, yield strength 205 MPa min, elongation 40% min in 50mm, hardness 95 HRB max, and reduction of area not specified for 316Ti plates.
Q: What tolerances are included in ASTM A240 for 316Ti?
A: ASTM A240 tolerances for 316Ti plates include thickness ±0.13mm for 3-5mm hot-rolled, width ±10mm, length ±15mm, flatness 3mm/m max, with camber and edge specs for quality.
Q: What testing is required in ASTM A240 for 316Ti?
A: ASTM A240 requires tension testing (E8), optional hardness (E18), corrosion (A262 for IGC), and hydrostatic for pressure, with material test reports (MTC) 3.1 or 3.2.
Q: What is the maximum temperature rating in ASTM A240 for 316Ti?
A: ASTM A240 does not specify a maximum temperature rating, but 316Ti is rated to 815°C continuous for IGC resistance with Ti stabilization, based on supplementary data.
Q: How does ASME SA240 relate to ASTM A240 for 316Ti?
A: ASME SA240 is the code adoption of ASTM A240 for pressure vessels, with identical specifications but additional certification requirements for compliance with ASME BPVC.
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