ASTM A276 420 (UNS S42000) Stainless Steel Rod
LEADING ASTM A276 420 STAINLESS STEEL ROD SUPPLIER
ASTM A276 420 (UNS S42000) is the premier choice for applications requiring exceptional hardness and wear resistance. As a high-carbon martensitic grade, a modification of Type 410, it can be heat-treated to achieve excellent strength and durability, making it renowned as “cutlery steel.” When hardened and polished, it exhibits good corrosion resistance. This martensitic stainless steel offers a high-performance and reliable solution for a vast range of industrial, medical, and tooling applications, delivering both outstanding strength and a sharp, lasting edge.
Discover high-quality 420 stainless steel rod products here.
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Characteristics of 420 Stainless Steel
- Exceptional Hardness & Strength: The defining feature of Type 420 is its ability to be heat-treated to achieve very high hardness (typically up to 50 HRC) and excellent tensile strength.
- Excellent Wear Resistance: Once hardened and tempered, this material exhibits outstanding resistance to wear and abrasion.
- The Classic “Cutlery Steel”: It is the standard material for manufacturing high-quality knife blades, surgical and dental instruments, scissors, and shear blades.
- Heat-Treatable Martensitic Grade: Achieves tailored properties from ductile (annealed) to ultra-hard (quenched & tempered).
- Good Corrosion Resistance in the Hardened State: It provides good resistance to corrosion from the atmosphere, fresh water, foods, mild acids, and sterilizing solutions.
- Difficult Weldability: High carbon content requires pre/post-heat treatment to avoid cracks.
- Ferromagnetic Properties: Like other martensitic stainless steels, Type 420 is magnetic in all conditions, both annealed and hardened.
- Limited Formability: Best for machining/hardening, not cold forming like austenitic grades.
ASTM A276 420 (UNS S42000) Stainless Steel Technical Specifications
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.15 min |
| Chromium (Cr) | 12.0 - 14.0 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 1.0 max |
| Phosphorus (P) | 0.040 max |
| Sulfur (S) | 0.030 max |
| Property | Annealed (Condition A) | Hardened & Tempered |
|---|---|---|
| Tensile Strength, min | 655 MPa | 1600 MPa |
| Yield Strength (0.2% offset), min | 345 MPa | 1360 MPa |
| Elongation in 2" (50mm), min | 25% | 12% |
| Hardness | 241 HBW max | 444 HBW (approx. 48 HRC) |
| Property | Value |
|---|---|
| Density | 7.8 g/cm³ |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 24.9 W/m-K (at 100 °C) |
| Coefficient of Thermal Expansion (0-100 °C) | 10.3 µm/m°C |
| Melting Point | 1450 - 1510 °C |
- UNS： S42000
- WERKSTOFF NR.： 1.4021
- EN： X20Cr13
- JIS： SUS 420J1
- BS： 420S37
- AFNOR： Z20C13
Common Applications of 420 Stainless Steel
Cutlery & Hand Tools
Medical & Dental Instruments
Industrial Tooling & Molds
Valves, Shafts, & Fittings
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420 Stainless Steel Rod Customization
Beyond our standard inventory, we provide a complete range of processing and heat treatment services to deliver ASTM A276 420 (UNS S42000) stainless steel rods that meet your exact project requirements for hardness, strength, and wear resistance.
- Custom Dimensions & Lengths: We offer precision saw cutting to deliver rods to your specified lengths, minimizing waste. We can also source or produce custom diameters to meet unique design needs.
- Expert Heat Treatment: We provide professional hardening and tempering services to achieve the precise mechanical properties and hardness levels your application demands, from cutlery to industrial tooling.
- Surface Grinding & Polishing: Choose from various surface conditions, including standard cold drawn, smooth turned, and high-precision centerless ground (CG) for tight tolerances. Polishing services are also available to maximize corrosion resistance and provide a superior finish.
- Value-Added Machining: We offer a range of value-added services, including chamfering, facing, and CNC machining, to create near-net-shape components and streamline your production process.
Contact our technical team to discuss your custom fabrication and heat treatment needs.
Contact Us
Your project’s success hinges on the use of superior materials. For projects requiring exceptional hardness and wear resistance, our certified 420 stainless steel rods deliver superior performance for surgical instruments, cutlery, and industrial components. With customizable heat treatment options (achievable HRC 50+), we provide tailored solutions to meet your exact mechanical property requirements.
Ready to begin? Contact our expert team for a detailed, no-obligation quote and professional material consultation. We are here to discuss your technical requirements and provide a tailored solution—including specific hardness and strength levels—with competitive pricing and on-time delivery. Send your inquiry now to secure the premium materials you need.
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