EN25 is a high-strength nickel-chromium-molybdenum steel that is an excellent choice for stainless steel pipes and fittings. With a tensile strength of 930-1080 MPa, it excels in severe conditions. It is tough enough to meet the requirements of large pipe fittings and is pre-hardened and tempered for improved mechanical properties.
Chemical Composition of EN25
| Element | C | Ni | Cr | Mo | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|---|
| Content (%) | 0.27-0.35 | 2.30-2.80 | 0.50-0.80 | 0.40-0.70 | 0.45-0.70 | 0.10-0.35 | ≤0.035 | ≤0.040 |
What We Do
Material Standards
- BS 970 Part 3: 826M31
- Condition: Hardened and tempered (U)
Core Advantages of EN25
With a tensile strength of 1080 MPa, it ensures that stainless steel tubing remains hard under high pressure. Can withstand heavy loads in aerospace or industrial systems without buckling.
It absorbs bumps and vibrations and stops oversized stainless steel fittings from cracking. Can keep pipes intact during handling or high-impact operations.
Flaming or nitriding pushes its surface toughness to the limit, protecting fittings from wear and tear. Extends service life in harsh wear environments.
For gears, shafts and stainless steel tubing in a wide range of industries. Its versatility shines in automotive, aerospace and energy applications with consistent reliability.
Physical Properties of EN25
| Property | Density | Thermal Conductivity | Coefficient of Expansion |
|---|---|---|---|
| Value | 7.85 g/cm³ | 42 W/m·K | 12.0 x 10⁻⁶ /K |
Mechanical Properties of EN25
| Property | Tensile Strength (Rm) | Yield Strength (Rp0.2) | Elongation (A) | Hardness (Rc) |
|---|---|---|---|---|
| Value | 930-1080 MPa | ≥700 MPa | ≥12% | 28-36 |
Applications in Stainless Steel
- Stainless Steel Pipes: Supports landing gear and turbine shafts.
- Stainless Steel Fittings: Strengthens bolts and couplings.
Contact Us
- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
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