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316Ti Stainless Steel 316Ti Material Number 1.4571

Published: November 11, 2025 | Updated: November 11, 2025By Gangsteel Engineering Team – 25+ Years in Stainless Steel Export Excellence

In the global stainless steel landscape compliant with ASTM A240/A240M and ASME SA240/SA240M standards, 316Ti emerges as a titanium-stabilized austenitic grade whose material number 1.4571 (X6CrNiMoTi17-12-2) under EN 10088-2/EN 10095 defines its equivalence and use in high-temperature and corrosive applications.

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 material number 1.4571 for 316Ti under ASME SA240/SA240M for a welded component or pressure vessel where cross-standard compliance is key, understanding its link to UNS S31635 is essential. This article explores 316Ti's material number 1.4571, property comparisons, and practical insights, based on ASTM A240/A240M, ASME SA240/SA240M, and EN 10088-2/EN 10095 standards and our mill data.

From our production lines, we've facilitated material number swaps: In a 2024 German pharmaceutical project, our 316Ti plates under ASTM A240 /A240M matched material number 1.4571 properties, allowing direct substitution without re-testing, saving 20% 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 material number 1.4571.

 

Summary

316Ti stainless steel (UNS S31635) is assigned material number 1.4571 (X6CrNiMoTi17-12-2) under EN 10088-2/EN 10095, 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 Material Number 1.4571

The chemical composition of 316Ti, as specified in ASTM A240/A240M and ASME SA240/SA240M, closely matches material number 1.4571 under EN 10088-2/EN 10095, ensuring equivalence in stabilization and resistance.

Element

316Ti (UNS S31635) %

1.4571 %

Equivalence Notes

C

0.08 max

0.08 max

Identical low C for ductility.

Mn

2.00 max

2.00 max

No difference.

Si

0.75 max

1.00 max

Slight higher max in 1.4571; both for oxidation.

P

0.045 max

0.045 max

Identical.

S

0.030 max

0.030 max

No difference.

Cr

16.00-18.00

16.50-18.50

Overlap for passivation.

Mo

2.00-3.00

2.00-2.50

Similar for pitting.

Ni

10.00-14.00

10.50-13.50

Balanced for austenite.

Ti

5x(C+N) min, 0.70 max

5xC min, 0.70 max

Ti for stabilization; equivalent binding.

N

0.10 max

-

Minor in 316Ti for strength.

Fe

Balance

Balance

Base matrix.

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.

Property

316Ti Min

1.4571 Typical

Notes

Tensile Strength (MPa)

515

500-700

Equivalent range.

Yield Strength (MPa)

205

200

Similar for load.

Elongation (%)

40

40

Identical ductility.

Hardness (HRB max)

95

215 HB max (converted)

Tunable.

Impact (Charpy J)

Not req.

100 at RT

Similar toughness.

Equivalence ensures same performance in apps.

For uns stainless steel plates, equivalence holds.

 

Physical Properties: Identical for Material Number 1.4571

Both share physical properties, with no significant differences.

Property

316Ti Value

1.4571 Value

Notes

Density (g/cm³)

8.00

8.00

Identical.

Thermal Conductivity (W/m·K at 100°C)

14.6

15.0

Minor difference.

Specific Heat (J/kg·K)

500

500

Identical.

Thermal Expansion (10^-6 /°C, 20-100°C)

16.5

16.0

Low for both.

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.

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 Material Number 1.4571

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 / 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 Material Number 1.4571 Questions Answered

Q: What is the material number 1.4571 for 316Ti stainless steel?

A: Material number 1.4571 (X6CrNiMoTi17-12-2) is the EN/DIN designation for 316Ti, with identical Ti stabilization and properties to UNS S31635.

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

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

Q: Where can I source 316Ti or material number 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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