1.4424 Stainless Steel (X2CrNiMoN18-14-3) – Premium Manufacturer
1.4424 Stainless Steel is a low-carbon, nitrogen-alloyed austenitic stainless steel, often designated as X2CrNiMoN18-14-3. It is renowned for its excellent resistance to intergranular corrosion and high mechanical strength compared to standard 316L grades. As a leading global manufacturer, FUSHUN SPECIAL STEEL specializes in the production of high-performance 1.4424 steel tailored for demanding industrial applications.
We welcome bulk orders from global clients. Our facility is equipped to handle large-scale production runs, ensuring consistency and quality for every ton of steel we deliver.
1. Applications of 1.4424 Steel
Due to its non-magnetic properties and superior corrosion resistance, 1.4424 is widely used in sectors requiring durability and hygiene. FUSHUN SPECIAL STEEL supplies this grade to manufacturers worldwide for the following applications:
- Chemical and Petrochemical Industry: Used in tanks, pipelines, and heat exchangers handling aggressive media.
- Shipbuilding and Marine Engineering: Components exposed to seawater environments requiring high pitting resistance.
- Medical and Pharmaceutical: Surgical instruments and implants due to its biocompatibility and cleanliness.
- Fasteners and Fittings: High-strength bolts and nuts used in corrosive environments.
2. Chemical Composition of 1.4424
The chemical composition is strictly controlled at FUSHUN SPECIAL STEEL to ensure the material meets international standards. The nitrogen addition enhances the yield strength significantly.
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| 1.4424 | ≤ 0.030 | ≤ 1.00 | ≤ 2.00 | ≤ 0.045 | ≤ 0.015 | 17.5 – 19.5 | 13.5 – 15.5 | 2.50 – 3.00 | 0.12 – 0.22 |
3. Mechanical Properties
The following table outlines the typical mechanical properties of 1.4424 steel in the solution-annealed condition. Our production process ensures these values are consistently met for your engineering requirements.
| Property | Value (Typical) |
|---|---|
| Tensile Strength (Rm) | 550 – 750 MPa |
| Yield Strength (Rp0.2) | ≥ 280 MPa |
| Elongation (A5) | ≥ 40% |
| Hardness (HB) | ≤ 215 HB |
4. Heat Treatment
Proper heat treatment is crucial for maximizing the corrosion resistance of 1.4424.
- Solution Annealing: 1020°C – 1120°C followed by rapid cooling (water or air).
- Forging: 1150°C – 900°C, followed by rapid air cooling or water quenching.
5. Equivalent Grades and Standards
While 1.4424 is a specific DIN/EN designation, it shares similarities with other international standards. Please consult with our technical team for exact cross-reference capabilities.
| Region | Standard | Grade |
|---|---|---|
| Europe (EN) | EN 10088-3 | 1.4424 / X2CrNiMoN18-14-3 |
| USA (ASTM) | ASTM A276 / A479 | Similar to 316LN |
| China (GB) | GB/T 1220 | 022Cr17Ni13Mo2N |
| Japan (JIS) | JIS G4303 | SUS316LN |
6. Supply Forms & Dimensions
As a direct manufacturer, FUSHUN SPECIAL STEEL offers a comprehensive range of supply forms. We produce both hot rolled and hot forged materials. If you have special size requirements, please visit Fushun Special Steel to consult with our experts.
Round Bars
Forged: Ø 80 mm – Ø 1200 mm
Rolled: Ø 6 mm – Ø 350 mm
Flat Bars / Blocks
Thickness: 10 mm – 800 mm
Width: 30 mm – 1200 mm
Plates / Sheets
Available in various hot rolled dimensions upon request.
Wire / Coil
Diameter: Ø 0.5 mm – Ø 20 mm
7. Why Choose FUSHUN SPECIAL STEEL?
We are not just a trader; we are a manufacturer with complete control over the production lifecycle.
Advanced Smelting Technology
We utilize state-of-the-art Electric Slag Remelting (ESR), Vacuum Induction Melting (VIM), and Vacuum Arc Remelting (VAR) furnaces. This ensures our 1.4424 steel has high purity, low inclusion levels, and superior performance for high-end applications.
Integrated Heat Treatment
Our in-house heat treatment facilities allow us to precisely control the mechanical properties of the steel. This integration guarantees stable quality and faster delivery times compared to competitors who outsource this critical step.
Machining Capabilities
We offer value-added services including turning, milling, and grinding. By delivering pre-machined or finished components (bright surface), we save our downstream customers significant time and processing costs.
Manufacturer Direct
Dealing directly with FUSHUN SPECIAL STEEL means no middleman markups. We specialize in large-volume orders and provide full material traceability. For inquiries, contact Fushun Metal today.
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