X2CrTi12 /409 /1.4512 stainless steel equivalent
Jul 08, 2025
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What Is X2CrTi12 / 1.4512 Stainless Steel?
X2CrTi12, also known as EN 1.4512 or AISI 409, is a ferritic stainless steel with low chromium content (~11–12%) and titanium stabilization. It is primarily used in automotive exhaust systems, industrial ventilation, and mildly corrosive structural applications where formability and oxidation resistance are more critical than high corrosion resistance.
This grade offers good weldability, resistance to intergranular corrosion, and excellent scale resistance up to 675°C, making it a popular choice in heat and exhaust-related industries.
What is 1.4512 stainless steel equivalent to?
| EU EN |
USA - |
Japan JIS |
France AFNOR |
England BS |
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| X2CrTi12 |
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What is the chemical composition of 1.4512 Stainless Steel?
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 10.5–12.5 |
| Carbon (C) | ≤ 0.03 |
| Titanium (Ti) | ≥ 5×C (stabilized) |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 1.0 |
| Nitrogen (N) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.015 |
| Phosphorus (P) | ≤ 0.040 |
| Iron (Fe) | Balance |
1.4512 Stainless Steel Mechanical Properties (Annealed Condition)
| Property | Typical Value |
|---|---|
| Yield Strength (Rp0.2) | ≥ 170 MPa |
| Tensile Strength (Rm) | 380–530 MPa |
| Elongation (A5) | ≥ 20% |
| Hardness (HBW) | ≤ 200 |
| Density | ~7.70 g/cm³ |
| Max Service Temp | Up to 675°C (oxidation) |
AISI 409 vs EN 1.4512
Is 1.4512 the same as 409 stainless steel?
EN 1.4512 (X2CrTi12) is the European equivalent of AISI 409. Both are ferritic stainless steels stabilized with titanium and used in automotive and thermal applications.
Can I use 1.4512 instead of 304 stainless steel?
Not directly. 1.4512 has lower corrosion resistance than 304 and is only suitable for mild, non-aggressive environments. However, it offers better oxidation resistance and cost savings in less demanding conditions.
Does 1.4512 rust?
It is rust-resistant, but not rust-proof. In high-humidity or chloride-rich environments, 1.4512 may show surface corrosion unless protected or passivated.
We support EN 10204 3.1 certification, mill test reports, and fast delivery for sheets, coils, or pipes.
We offer EN 1.4512 / AISI 409 stainless steel in a variety of processed forms to suit different industrial applications:
Cold Rolled Sheets & Coils
– Finish: 2B, BA, No.4, Hairline
– Thickness: 0.4mm–3.0mm
– Applications: kitchen equipment, appliance panels, ducting
Hot Rolled Plates & Coils
– Finish: No.1 (mill finish)
– Thickness: 3mm–12mm
– Applications: exhaust housings, heat-resistant panels, chimneys
Welded Pipes & Tubes (ASTM A268 TP409)
– Round, square, or oval shapes
– Surface: pickled or polished
– Applications: automotive exhaust systems, ventilation ducts
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