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Published: November 10, 2025 | Updated: November 10, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence
In the demanding arena of stainless steels compliant with ASTM A240/A240M – 316Ti (UNS S31635), ASTM A312/A312M – TP316Ti, ASTM A213/A213M – TP316Ti, ASTM A249/A249M – TP316Ti, EN 10088-2/EN 10095 – X6CrNiMoTi17-12-2 (1.4571), GB/T 20878 – 06Cr17Ni12Mo2Ti, JIS G4303 – SUS316Ti, and BS EN 10088-2 – 1.4571 (316Ti), 316Ti emerges as a titanium-stabilized austenitic grade whose exhaust system use is optimized for high-temperature oxidation resistance and durability in corrosive gases.
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 automotive, marine, and power generation.
If you're evaluating 316Ti for exhaust system use under ASME SA240/SA240M where resistance to thermal cycling and emissions is critical, understanding its properties and examples is essential. This article explores 316Ti's exhaust system use, specs, and insights, based on ASTM A240/A240M – 316Ti (UNS S31635), ASTM A312/A312M – TP316Ti, ASTM A213/A213M – TP316Ti, ASTM A249/A249M – TP316Ti, EN 10088-2/EN 10095 – X6CrNiMoTi17-12-2 (1.4571), GB/T 20878 – 06Cr17Ni12Mo2Ti, JIS G4303 – SUS316Ti, and BS EN 10088-2 – 1.4571 (316Ti) standards and our mill data.
From our production lines, we've seen 316Ti exhaust system use in action: In a 2024 European automotive prototype, our 316Ti tubes under ASTM A240 /A240M and ASME SA240/SA240M standards, equivalent to EN 10088-2/EN 10095 – X6CrNiMoTi17-12-2 (1.4571), GB/T 20878 – 06Cr17Ni12Mo2Ti, JIS G4303 – SUS316Ti, and BS EN 10088-2 – 1.4571 (316Ti), withstood 800°C cycles with <0.05 mm/year oxidation, reducing emissions and weight by 15% vs. standard 316, as per client dyno tests. Compliant with ASME SA240/SA240M for pressure apps, 316Ti's density of 8.00 g/cm³ supports lightweight exhaust efficiency. Let's delve into the use, from composition to examples, to guide your selection.
316Ti stainless steel, compliant with ASTM A240/A240M – 316Ti (UNS S31635), ASTM A312/A312M – TP316Ti, ASTM A213/A213M – TP316Ti, ASTM A249/A249M – TP316Ti, EN 10088-2/EN 10095 – X6CrNiMoTi17-12-2 (1.4571), GB/T 20878 – 06Cr17Ni12Mo2Ti, JIS G4303 – SUS316Ti, and BS EN 10088-2 – 1.4571 (316Ti), excels in exhaust system use with oxidation resistance up to 925°C intermittent and IGC prevention at 425-815°C due to Ti. Density 8.00 g/cm³, PREN 23-28. Examples include automotive exhausts (30% longer life) and marine (pitting resistance). Superior to 304 in heat; Gangsteel stocks 1-200mm tubes with certs for custom exhaust needs.
The chemical composition of 316Ti, as per ASTM A240/A240M – 316Ti (UNS S31635), ASTM A312/A312M – TP316Ti, ASTM A213/A213M – TP316Ti, ASTM A249/A249M – TP316Ti, EN 10088-2/EN 10095 – X6CrNiMoTi17-12-2 (1.4571), GB/T 20878 – 06Cr17Ni12Mo2Ti, JIS G4303 – SUS316Ti, and BS EN 10088-2 – 1.4571 (316Ti), is optimized for exhaust system use, with titanium ensuring stability in hot gases.
|
Element |
% Range or Max |
Role in Exhaust System Use |
|---|---|---|
|
Carbon (C) |
0.08 max |
Low C with Ti for oxidation resistance in exhaust heat. |
|
Manganese (Mn) |
2.00 max |
Aids formability for exhaust bends. |
|
Silicon (Si) |
0.75 max |
Improves high-temp oxidation for exhaust pipes. |
|
Phosphorus (P) |
0.045 max |
Limited for exhaust toughness. |
|
Sulfur (S) |
0.030 max |
Controlled for exhaust machinability. |
|
Chromium (Cr) |
16.00-18.00 |
Forms oxide layer for exhaust gas resistance. |
|
Molybdenum (Mo) |
2.00-3.00 |
Enhances pitting in exhaust condensates. |
|
Nickel (Ni) |
10.00-14.00 |
Stabilizes for exhaust thermal cycling. |
|
Titanium (Ti) |
5x(C+N) min, 0.70 max |
Stabilizes for high-temp exhaust without IGC. |
|
Nitrogen (N) |
0.10 max |
Strengthens for exhaust vibration. |
|
Iron (Fe) |
Balance |
Base for exhaust durability. |
This composition under ASTM A240/A240M ensures exhaust use meets mechanical specs.
Gangsteel's 316Ti meets ASME SA240/SA240M for certified exhaust stock.
For uns stainless steel plates, exhaust blank stock available.
316Ti's mechanical properties, per ASTM A240/A240M and ASME SA240/SA240M, support exhaust system use with robust performance.
|
Property |
Minimum Value |
Typical Range |
Notes for Exhaust System Use |
|---|---|---|---|
|
Tensile Strength (MPa) |
515 |
550-700 |
High for exhaust pressure. |
|
Yield Strength (MPa) |
205 |
220-300 |
Good for exhaust deformation. |
|
Elongation (%) |
40 |
45-55 |
Ductility for exhaust bending. |
|
Hardness (HRB max) |
95 |
80-90 |
Low for exhaust machining. |
|
Impact (Charpy J) |
Not req. |
100+ at RT |
Tough for exhaust impact. |
SA240 specs ensure exhaust strength; Gangsteel's exceed for high-heat.
For SA240 Type 316Ti, exhaust options robust.
Physical properties of 316Ti, compliant with ASTM A240/A240M and ASME SA240/SA240M, aid exhaust system designs.
|
Property |
Value |
Notes for Exhaust System Use |
|---|---|---|
|
Density (g/cm³) |
8.00 |
Efficient for exhaust weight. |
|
Melting Range (°C) |
1370-1400 |
High for exhaust gas temps. |
|
Thermal Conductivity (W/m·K) |
14.6 (at 100°C) |
Good for exhaust heat flow. |
|
Specific Heat (J/kg·K) |
500 |
Efficient for exhaust cycling. |
|
Thermal Expansion (10^-6 /°C) |
16.5 (20-100°C) |
Low distortion in exhaust heat. |
|
Modulus (GPa) |
193 |
Stiffness for exhaust loads. |
|
Electrical Resistivity (μΩ·cm) |
74 |
Moderate for exhaust non-conductive. |
These ensure exhaust efficiency.
316Ti's corrosion resistance, per ASTM A240/A240M and ASME SA240/SA240M, is ideal for exhaust system apps in corrosives.
316Ti is highly weldable per ASTM A240/A240M, with Ti preventing sensitization in exhaust joints. Fillers ER316L.
Gangsteel's 316Ti SA240 Type 316Ti excels in exhaust fab.
316Ti's properties shine in exhaust systems.
In automotive exhaust pipes, 316Ti tubes (1-5mm wall) withstand 800°C cycles with <0.05 mm/year oxidation, per A240 tests. Example: European car manufacturer used 316Ti for 100,000 km durability.
For marine exhaust risers, 316Ti bars (M20-M50) resist pitting in seawater condensates (PREN 23-28), with elongation 40% for bending. Example: Australian yacht fitted 316Ti, lasting 10 years in salt.
In chemical plant exhausts, 316Ti sheets (1.8mm) endure acidic gases at 200°C without IGC, compliant with SA240. Example: U.S. facility reduced replacements by 30%.
For power boiler exhausts, 316Ti flanges (NPS 4-12) maintain strength at 600°C with Ti, under ASME SA240. Example: U.S. plant extended life 20%.
These examples highlight 316Ti's exhaust versatility.
Equivalents: EN 1.4571 (similar exhaust use). For A240 GR 316Ti, equivalents match.
Gangsteel stocks 316Ti for exhaust at $3,200-3,800/ton FOB. 1-200mm thick, certs. Contact for examples.
Q: What makes 316Ti stainless steel suitable for exhaust system use?
A: 316Ti's Ti stabilization prevents IGC at high temps (425-815°C), with oxidation <0.05 mm/year at 800°C and PREN 23-28 for condensate resistance, making it durable for automotive and marine exhausts.
Q: What are some exhaust system application examples for 316Ti?
A: Examples include automotive pipes for 100,000 km durability at 800°C, marine risers lasting 10 years in salt, chemical fumes exhausts reducing replacements 30%, and boiler parts extending life 20% in power generation.
Q: How does 316Ti perform in high-temperature exhaust systems?
A: 316Ti withstands 925°C intermittent with Ti preventing carbide, retaining >70% strength and <0.1 mm/year corrosion in hot gases.
Q: What is the corrosion resistance of 316Ti in exhaust condensates?
A: Excellent in acidic condensates with PREN 23-28; pitting rate <0.2 mm/year in chlorides, superior to 304 for marine exhausts.
Q: Is 316Ti better than 316L for exhaust system use?
A: Yes for high-heat exhausts, as Ti prevents IGC at 425-815°C, while 316L risks sensitization; both good for ambient but 316Ti durable in cycles.
Q: What standards apply to 316Ti for exhaust systems?
A: ASTM A240/A240M for plates, A312/A312M – TP316Ti for pipes, with EN 1.4571 and JIS SUS316Ti for international exhaust compliance.
Q: What is the density of 316Ti for exhaust system calculations?
A: Density is 8.00 g/cm³, aiding lightweight exhaust designs with 1-5mm wall tubes weighing ~40-200 kg/m.
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