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Product Overview
Introduction to Stainless Steel 440C / AISI 440C / UNS S44004
MOKSH TUBES & FITTINGS LLP is a supplier, exporter, importer, and stockist of a wide variety of Stainless Steel 440C products, including Pipes & Tubes, Pipe Fittings, Flanges, Fasteners, Sheets & Plates, Coils, Wires, Round Bars, Flat Bars, Angles, Channels, Wire Mesh, and other custom or hard-to-find 440C components.
440C Stainless Steel is a high-carbon martensitic stainless steel with the highest carbon content among the 440 series (440A, 440B, 440C), making it extremely hard, wear-resistant, and capable of achieving the highest strength after heat treatment.
It is fully magnetic in all conditions and can be hardened via quenching and tempering. 440C is widely used for applications requiring exceptional hardness, edge retention, and moderate corrosion resistance, such as cutting tools, bearings, industrial knives, and high-wear components.
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Chemical Composition of SS 440C
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.95 – 1.20 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
| Chromium (Cr) | 16.0 – 18.0 |
| Molybdenum (Mo) | ≤ 0.75 |
| Iron (Fe) | Balance |
👉 The high carbon content provides superior hardness and wear resistance, making 440C ideal for high-performance cutting and wear parts.
Mechanical Properties of SS 440C
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 655 – 895 MPa | 95,000 – 130,000 psi |
| Yield Strength (0.2%) | ~415 MPa | ~60,000 psi |
| Elongation | 15% | 15% |
| Hardness (Annealed) | 215 – 240 HB | 215 – 240 HB |
| Hardness (Hardened) | 58 – 64 HRC | |
👉 SS 440C achieves the highest hardness among 440 grades, ideal for precision, cutting, and high-wear applications.
Products in Stainless Steel 440C
MOKSH TUBES & FITTINGS LLP offers a comprehensive range of Stainless Steel 440C products for use in industrial, mechanical, and specialty applications. Known for its exceptional hardness, edge retention, and wear resistance, 440C is the hardest and most corrosion-resistant steel among the 440 series, making it a preferred choice for cutting tools, bearings, and precision components.
All materials are manufactured and tested as per ASTM A276 / A314 / A580 and equivalent international standards to ensure superior mechanical performance, dimensional accuracy, and durability.
Uses and Advantages of Stainless Steel 440C
Exceptional hardness and wear resistance
Good corrosion resistance in moderate environments
Magnetic in both annealed and hardened conditions
Excellent edge retention for cutting and tooling
Heat-treatable for achieving maximum strength
Suitable for machining, grinding, and polishing
Applications of Stainless Steel 440C
Stainless Steel 440C is ideal for high-strength, wear-resistant, and precision applications, including:
Chemical Processing
Oil & Gas
Marine
Pharmaceutical
Heat Exchangers
Power Plants
WHY CHOOSE US?
FAQ's
What is 440C Stainless Steel?
440C is a high-carbon martensitic stainless steel known for its excellent hardness, wear resistance, and corrosion resistance, widely used in precision applications.
What are its key properties?
High hardness, superior wear resistance, good corrosion resistance, and excellent polishability.
Where is it used?
Knife blades, bearings, surgical instruments, cutting tools, and high-wear components.
Is it weldable?
Welding is possible but requires special procedures and post-weld heat treatment to preserve mechanical properties.
Why choose Mokshtubes?
Mokshtubes provides premium 440C stainless steel with precise manufacturing, consistent quality, and reliable global supply.
Contact Us
For any inquiries or to request a quote, contact Tubes & Fittings LLP – your trusted partner for Stainless Steel 440C products.
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