316Ti Stainless Steel Equivalent to 1.4571 AISI Grade

316Ti Stainless Steel Equivalent to 1.4571 AISI Grade

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

In the global landscape of stainless steels compliant with ASTM A240/A240M and ASME SA240/SA240M standards, 316Ti emerges as a titanium-stabilized austenitic grade whose equivalence to EN 1.4571 (often cross-referenced with AISI standards) enables seamless international sourcing.

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 verifying equivalents for a high-temp welded structure under ASME SA240/SA240M or sourcing material with matching properties, understanding 316Ti's link to 1.4571 is key. This article explores the equivalence, property comparisons, and practical insights, based on ASTM A240/A240M and ASME SA240/SA240M standards and our mill data.

From our production lines, we've facilitated equivalences: In a 2024 UK chemical project, our 316Ti plates under ASTM A240 /A240M matched EN 1.4571 properties, allowing direct substitution without re-testing, saving 15% on certification as per client reports. Compliant with ASME SA240/SA240M for pressure apps, 316Ti's density of 8.00 g/cm³ supports equivalent designs. Let's delve into the details, from composition to applications, to confirm why 316Ti is equivalent to 1.4571 AISI grade.

Summary

316Ti stainless steel (UNS S31635) is directly equivalent to EN/DIN 1.4571 (X6CrNiMoTi17-12-2), an AISI-aligned grade with identical titanium stabilization for high-temp IGC resistance, tensile strength 515 MPa min, yield 205 MPa min, and elongation 40% min. Both share PREN 23-28 and density 8.00 g/cm³, compliant with ASTM A240/A240M and EN 10088. Minor range differences (e.g., Ni) don't affect equivalence for most apps. Ideal for chemical reactors; Gangsteel offers dual-cert stock for seamless use.

Chemical Composition: Matching for Equivalence

The chemical composition of 316Ti, as specified in ASTM A240/A240M and ASME SA240/SA240M, closely matches that of 1.4571, ensuring equivalence in stabilization and resistance.

Composition equivalence under ASTM A240/A240M and EN 10088 allows direct swap.

Gangsteel's 316Ti meets ASME SA240/SA240M with 1.4571 dual certs.

Mechanical Properties: Equivalent Performance

Both grades have comparable mechanicals, with equivalence in strength and ductility.

Equivalence ensures same performance in apps.

For uns stainless steel plates, equivalence holds.

Physical Properties: Identical for Equivalents

Both share physical properties, with no significant differences.

This equivalence supports direct design swaps.

Corrosion Resistance: Equivalent Protection

Both have PREN 23-28 for similar corrosion, with Ti preventing IGC.

• Pitting: CPT ~25°C for both.
• IGC: Both resistant with Ti.
• SCC: Equivalent in chlorides.
• Uniform: <0.1 mm/year in acids.

Equivalence in corrosion for shared apps.

Weldability and Fabrication: Equivalent Ease

Both weld well; Ti eliminates annealing. Machinability ~60% for both.

Gangsteel's 316Ti SA240 Type 316Ti matches 1.4571 fab.

Applications: Shared for Equivalents

Both used in chemical reactors, marine fittings, power boilers—equivalence allows swaps.

In Gangsteel's supply to U.S. pharma, 316Ti matched 1.4571 without issue.

Sourcing: Practical Advice

Gangsteel offers UNS S31635 / EN 1.4571 at $3,200-3,800/ton FOB, 1-200mm thick. Dual certs save on testing; contact for quotes.

For A240 GR 316Ti, equivalence confirmed.

FAQ: 316Ti Stainless Steel Equivalent Questions Answered

Q: Is 316Ti stainless steel equivalent to 1.4571 AISI grade?

A: Yes, 316Ti (UNS S31635) is directly equivalent to EN/DIN 1.4571 (X6CrNiMoTi17-12-2), an AISI-aligned grade with identical Ti stabilization and properties.

Q: What are the differences between 316Ti and 1.4571?

A: No significant differences—1.4571 is the EN designation for 316Ti, with overlapping chemistry and mechanicals for full equivalence.

Q: Can I substitute 1.4571 for 316Ti in ASTM specs?

A: Yes, with high equivalence; dual-cert material from Gangsteel ensures compliance without issues.

Q: What standards cover 316Ti and 1.4571?A: 316Ti under ASTM A240/A182; 1.4571 under EN 10088-3/EN 10222-5. Equivalent for plates/forgings.

Q: Are there any limitations in equivalence between 316Ti and 1.4571?

A: Minor range variances (e.g., Ni); fully equivalent for most apps.

Q: What is the density of 316Ti and its equivalents?

A: 8.00 g/cm³ for both 316Ti and 1.4571—identical for weight calculations.

Q: Where can I source 316Ti or 1.4571?

A: Gangsteel stocks both at $3,200-3,800/ton FOB, 1-200mm thick. Dual certs available.

Q: Is 316Ti equivalent to other grades like 316L or 321?

A: No—better than 316L in high-temp IGC, similar to 321 but with Mo for pitting; equivalents are specifically 1.4571-like grades.

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