X10CrMoVNb9-1, 1.4903, P91 – Heat-resistant, stainless steel

Grade X10CrMoVNb9-1, 1.4903, ASTM A182 F91, P91 steel is a high-quality alloy steel. It has primarily industrial uses due to its excellent mechanical properties and chemical composition.

The equivalent to grade X10CrMoVNb9-1, 1.4903 in the ASTM standard is A182 F91 grade.

Round bars of smaller diameters in stock. Larger diameters, forged, peeled bars available on request. Round rolled, peeled bars up to a diameter of 230 mm in stock. Larger diameters available upon request. Forged, peeled bars of large diameters available upon request.

Key properties of X10CrMoVNb9-1, 1.4903 steel

X10CrMoVNb9-1, 1.4903 steel is characterized by its high resistance to corrosion, heat, and wear. This steel also has excellent high-temperature strength, making it ideal for use in environments with extreme temperature conditions. Key properties of this steel include:

• High strength: X10CrMoVNb9-1, 1.4903 steel has excellent strength that is maintained even at high temperatures.
• Resistance to corrosion: Due to the presence of chromium and molybdenum, this steel has excellent corrosion resistance.
• Heat resistance: This steel is capable of withstanding high temperatures without losing its mechanical properties.
• Wear resistance: Thanks to its hardness and toughness, this steel is resistant to wear.

Chemical composition of X10CrMoVNb9-1, 1.4903 steel

The chemical composition of X10CrMoVNb9-1, 1.4903 steel is carefully balanced to provide optimal properties for use in demanding industrial applications. The main components of this steel include:

• Chromium (Cr): 8.0–9.5%
• Molybdenum (Mo): 0.85–1.05%
• Vanadium (V): 0.18–0.25%
• Niobium (Nb): 0.06–0.10%
• Carbon (C): 0.08–0.12%
• Silicon (Si): ≤ 0.50%
• Manganese (Mn): ≤ 0.70%
• Phosphorus (P): ≤ 0.020%
• Sulphur (S): ≤ 0.010%
• Iron (Fe): Remainder

Typical industrial applications of X10CrMoVNb9-1, 1.4903 steel

X10CrMoVNb9-1, 1.4903 steel is widely used in various industrial sectors due to its excellent mechanical properties and chemical composition. The main areas of application include:

Energy industry

It is used in the production of steam boilers, tubes, and other components for temperatures up to 650 °C and high pressure.

Oil and gas industry

It is used in the production of equipment and piping that operate in corrosive environments.

Chemical industry

Suitable for the production of reactors, heat exchangers, and storage tanks where high corrosion resistance is required.

Automotive industry

It is used in the production of engine components and exhaust systems that must withstand high temperatures.

X10CrMoVNb9-1, 1.4903 steel is a high-quality alloy steel that offers excellent mechanical properties and chemical composition. This makes it ideal for use in demanding industrial applications. This steel has high strength, resistance to corrosion, heat, and wear. As such, it is widely used in the energy, oil and gas, chemical, and automotive industries.