X6CrNi25-20 / 1.4951 Stainless Steel

tainless Steel 1.4951 / X6CrNi25-20: Specifications, Applications, and Features

Stainless steel 1.4951 (X6CrNi25-20) is a high-quality heat-resistant material designed for use in high-temperature environments and aggressive chemical conditions. With its high nickel and chromium content, this alloy provides excellent corrosion resistance and maintains mechanical strength under thermal loads. Below are its key specifications, chemical composition, mechanical properties, applications, and features.

General Specifications

Stainless steel 1.4951 / X6CrNi25-20 belongs to the group of austenitic steels with high thermal resistance. Key characteristics include:

• Steel grade: 1.4951 (EN), X6CrNi25-20 (European standard).
• Corrosion resistance: Excellent resistance to oxidation, acids, and aggressive chemical environments.
• Operating temperature range: Up to +1100°C.
• Processing methods: Hot-rolled and cold-rolled sheets, welded products.

This material is especially in demand for high-temperature applications requiring a combination of strength and corrosion resistance.

Chemical Composition

The chemical composition of stainless steel 1.4951 / X6CrNi25-20 is balanced to ensure its heat-resistant and corrosion-resistant properties:

• Carbon (C): 0.05–0.10%
• Chromium (Cr): 24.0–26.0%
• Nickel (Ni): 19.0–22.0%
• Manganese (Mn): Up to 2.0%
• Silicon (Si): Up to 1.0%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.015%

High nickel and chromium content ensures resistance to high temperatures and aggressive environments.

Mechanical Properties

Stainless steel 1.4951 has the following mechanical properties:

• Yield strength (σ0.2): 230–250 MPa.
• Tensile strength (σv): 550–750 MPa.
• Elongation at break: 35–40%.
• Hardness (HB): Up to 200.
• Heat resistance: Maintains mechanical stability at temperatures up to +1100°C.

These characteristics make the material ideal for use in conditions of constant thermal exposure.

Applications

Stainless steel 1.4951 / X6CrNi25-20 is used in the following industries:

1. Energy sector.
   Used for manufacturing boiler components, heat exchangers, gas turbines, and pipelines operating at high temperatures.
2. Chemical industry.
   Applied for equipment that contacts acids, alkalis, and other aggressive substances.
3. Mechanical engineering.
   Suitable for parts operating under continuous heating, such as shafts and fasteners.
4. Metallurgy.
   Used for components of furnaces and heating elements.
5. Aviation.
   Suitable for components exposed to extreme thermal and mechanical loads.

This alloy is perfectly suited for operation in high-temperature and aggressive environments.

Features of Steel 1.4951

Stainless steel 1.4951 / X6CrNi25-20 has the following unique features:

• Heat resistance.
  The material retains its strength characteristics even at temperatures up to +1100°C.
• High corrosion resistance.
  Resistant to oxidation and exposure to aggressive chemical substances.
• Durability.
  Suitable for long-term operation in extreme conditions.
• Mechanical stability.
  The material retains its structure even under sharp temperature changes.
• Versatility in processing.
  Easy to weld, polish, and machine.

Advantages of Buying from Us

We offer a wide range of stainless steel 1.4951 / X6CrNi25-20 in various formats: sheets, pipes, and round bars. Our advantages include:

• High-quality products.
  Materials comply with international standards.
• Flexible pricing.
  Favorable conditions for wholesale and retail buyers.
• Wide range of options.
  Products are available in various sizes and formats.
• Fast delivery.
  We ensure timely delivery to meet your needs.
• Professional consultation.
  Our experts will help you choose the best option for your project.

Contact us to clarify prices and place your order. Stainless steel 1.4951 / X6CrNi25-20 is a reliable solution for complex tasks!

Forms of delivery of steel products EN 1.4951 / X6CrNi25-20