Ventile
Premium Valve Steels
Ensuring Efficiency, Reliability, and Durability
The automotive industry is driven to create fuel-efficient, high-performance engines, relying on global steel manufacturers. We support this mission by providing premium valve steels and nickel-based alloys, combining technical expertise with deep material knowledge.
We are globally recognized for producing materials that withstand corrosion, high temperatures, abrasive wear, and extreme mechanical stress—critical for internal combustion engines. Our nickel alloys are widely used in high-performance engines, ensuring efficiency, reliability, and durability.
Villares Metals, a voestalpine company, delivers the performance the automotive sector demands.
Combustion Valve Function
In an internal combustion engine, valves control the flow of air-fuel mixture and exhaust gases within the combustion chamber. There are typically two types:
- Intake valve: Opens to allow the air-fuel mixture into the chamber.
- Exhaust valve: Opens to release burnt gases after combustion.
These valves operate in sync with the camshaft, opening and closing at precise times during the engine’s four-stroke cycle (intake, compression, power, exhaust). They must withstand high temperatures, pressure, and mechanical stress, making material quality critical for performance and durability.
Our Valves Portfolio
Martensitic Steels
| Villares Metals Grade | Commercial Grade |
| VV40 | SUH3 |
| VV45 | Sil 1; HNV3; SUH1; 1.4718 |
| VV48 | SUH11/; UH11M |
| VV85 | Chromo 193; X85CrMoV18-2; 1.4748 |
Austenitic Steels
| Villares Metals Grade | Commercial Grade |
| VV33 | 21-8N; 23-8N; X33CrNiMnN23-8; 1.4866 |
| VV50 | 21-4N+Nb+W; 21-43; 21-43N; X50CrMnNiNbN21-9; 1.4882 |
| VV53 | 21-4N; SUH35; X53CrMnNiN219; 1.4871 |
| VV56 | 21-2N; EV-12 |
Intermediate Nickel Alloys
| Villares Metals Grade | Commercial Grade |
| VAT30A | HRV30; Ni30; NIREVA3015; UNS S66315 |
| VAT36 | VAT36; Ni36 |
High Nickel Alloys
| Villares Metals Grade | Commercial Grade |
| VAT31V | SAE HEV8; UNS N07032; Pyromet 31V |
| VAT751 | Alloy 751; X751; NiCr15Fe7TiAl |
| VAT80A | Alloy 80A; NiCr20TiAl; Nimonic 80A |
| Supply Conditions | Standard Specification |
|---|---|
| Diameter Range | 5.00mm to 76mm (Above 76mm, upon request) |
| Dimensional Tolerance | ISO H9 or H11 |
| Finishing Surface | Peeled, centerless ground or black bar |
| Heat Treatment | Annealed, hardened & tempered or solution annealed |
| Alloy Type | voestalpine Grade | Valve Application |
|---|---|---|
| High Nickel Alloys | VVN80A VAT80A | Ships, trucks/buses, passenger cars, power generators, racing cars |
| High Nickel Alloys | VAT751A | Trains, trucks/buses, passenger cars, power generators |
| High Nickel Alloys | VAT31V | Agriculture/machinery, power generators |
| Alloy Type | voestalpine Grade | Valve Application |
|---|---|---|
| Med-Nickel Alloys | VAT30A | Trucks/buses, passenger cars, two-wheelers |
| Med-Nickel Alloys | VAT36 | Passenger cars, power generators |
| Alloy Type | voestalpine Grade | Valve Application |
|---|---|---|
| Austenitic Grades | VV50 | Passenger cars, two-wheelers |
| Austenitic Grades | VV53 / VV56 | Passenger cars, racing cars |
| Austenitic Grades | VV33 | Passenger cars |
| Alloy Type | voestalpine Grade | Valve Application |
|---|---|---|
| Martensitic Grades | VV45 | Passenger cars |
| Martensitic Grades | VV85 | Agriculture/machinery |
| Martensitic Grades | VV48 | Passenger cars |