Micro-Alloy Steel
38MnVS6 · 1.1303
Also known as vanadium microalloy forging steel
Vanadium micro-alloyed forging steel that hardens from forging heat.
38MnVS6 (material 1.1303) is a vanadium micro-alloyed medium-carbon steel that reaches its mechanical properties by controlled cooling directly from forging heat — no separate quench-and-temper needed. Widely used for forged crankshafts, connecting rods and automotive components.
International equivalents.
The same steel by country and standard — near matches; mill certificate governs.
Chemical composition.
Indicative, % by weight per EN 10267. Mill certificate governs.
| Element | % |
|---|---|
| C | 0.34 – 0.41 |
| Si | 0.15 – 0.80 |
| Mn | 1.20 – 1.60 |
| V | 0.08 – 0.20 |
| S | 0.045 – 0.065 |
Mechanical properties.
Indicative; depends on dimension and heat treatment.
Available forms.
Size range: Ø 20 – 250 mm
Typical applications.
- Forged crankshafts
- Connecting rods
- Automotive forgings
- Axle components
FAQ.
What is 38MnVS6?
38MnVS6 (material 1.1303) is a vanadium micro-alloyed medium-carbon steel that reaches its mechanical properties by controlled cooling directly from forging heat — no separate quench-and-temper needed. Widely used for forged crankshafts, connecting rods and automotive components.
Is 38MnVS6 the same as vanadium microalloy forging steel?
Yes — 38MnVS6 is the European (EN) designation, while vanadium microalloy forging steel are the matching names used in other countries and standards (for example AISI/SAE in the USA, JIS in Japan, GB in China, former DIN in Germany). They are near equivalents and may differ slightly in chemistry; the mill certificate governs the exact specification.
What are the international equivalents of 38MnVS6?
38MnVS6 corresponds to 38MnVS6 (1.1303) (EN), Microalloy / precipitation-hardening forging steel (type). Equivalents are nearest matches by country/standard; the mill certificate governs the exact specification.
In which forms is 38MnVS6 available?
38MnVS6 is supplied as Round bar, Forged, in Ø 20 – 250 mm.
What is 38MnVS6 used for?
Typical applications include Forged crankshafts, Connecting rods, Automotive forgings, Axle components.