1.4021 AISI 420 Stainless Steel Coil – Product Overview

The 1.4021 AISI 420 Stainless Steel Coil is a high-carbon martensitic stainless steel known for its exceptional hardness, corrosion resistance, and wear resistance. Comprising 12-14% chromium, AISI 420 is often hardened through heat treatment to enhance its mechanical properties. This steel grade is commonly used in applications where strength, sharpness, and durability are required, such as in knives, medical instruments, and industrial tools.

The 1.4021 AISI 420 Stainless Steel Coil offers both formability and the ability to achieve a high hardness level, making it ideal for precision-engineered products that require both performance and corrosion resistance. Yuanchi Metal offers high-quality 1.4021 AISI 420 Stainless Steel Coils in various thicknesses, finishes, and sizes to meet specific project requirements.

Unique Features of 1.4021 AISI 420 Stainless Steel Coil

• High Hardness: After heat treatment, AISI 420 offers high hardness, making it suitable for applications that require wear resistance and durability, such as cutting tools and blades.
• Corrosion Resistance: AISI 420 provides good resistance to corrosion in moderately corrosive environments, including fresh water, mild acids, and alkalis, though it may not perform as well as austenitic grades like AISI 304 in highly corrosive environments.
• Magnetic Properties: Like other martensitic stainless steels, AISI 420 is magnetic, which makes it suitable for applications requiring magnetic properties, such as magnetic sensing devices.
• Good Strength and Toughness: While it is known for its hardness, AISI 420 also provides a good balance of strength and toughness, ensuring durability and reliability in challenging environments.
• Versatile Applications: This steel is suitable for a variety of industries, from manufacturing high-precision instruments to creating industrial-grade tools that require a balance of sharpness and toughness.

Technical Specifications of 1.4021 AISI 420 Stainless Steel Coil

Applications of 1.4021 AISI 420 Stainless Steel Coil

1. Cutting Tools and Knives: AISI 420 is widely used in the manufacture of knives, blades, and scissors due to its ability to achieve a sharp edge and its wear resistance.
2. Surgical Instruments: With its high hardness and corrosion resistance, AISI 420 is commonly used in the production of surgical instruments, including scalpels, forceps, and scissors, ensuring precision and durability in medical applications.
3. Industrial Tools: AISI 420 is frequently used for industrial applications such as gears, shafts, and valves, where high strength, wear resistance, and the ability to withstand harsh conditions are required.
4. Pump Parts and Mechanical Components: The material’s ability to maintain strength and toughness in challenging environments makes it ideal for the manufacture of components in pumps and other mechanical systems.
5. Valves and Valve Components: AISI 420 is often used for producing valve components due to its resistance to wear and ability to perform under high-stress conditions.

Packaging and Shipping

At Yuanchi Metal, we prioritize safe and secure packaging to protect your 1.4021 AISI 420 Stainless Steel Coils during transit. Our coils are carefully wrapped in plastic film or protective paper to avoid damage from scratches, dents, or moisture. Larger orders are secured with wooden pallets or crates to keep the coils in place. We offer both sea and air freight options, ensuring timely delivery of your order, regardless of your location. With a focus on efficiency and reliability, we guarantee that your order will arrive in excellent condition.

Frequently Asked Questions (FAQ)

1. What makes AISI 420 suitable for knives and cutting tools?
   • AISI 420 is heat-treated to achieve high hardness, which allows it to maintain a sharp edge and resist wear, making it ideal for cutting tools and knives.
2. Can AISI 420 be welded?
   • Yes, AISI 420 can be welded, but it may require preheating and post-weld heat treatment to avoid cracking and to ensure the material maintains its strength and corrosion resistance.
3. Is AISI 420 resistant to rust and corrosion?
   • AISI 420 provides good resistance to corrosion in mild environments but is less resistant than austenitic stainless steels like AISI 304. It’s best suited for moderately corrosive environments, such as fresh water and mild acids.
4. What is the typical hardness of AISI 420?
   • AISI 420 typically achieves a hardness range of 55-60 HRC after heat treatment, making it suitable for demanding applications like cutting tools and industrial instruments.
5. How does AISI 420 compare to AISI 304 in terms of corrosion resistance?
   • AISI 420 has lower corrosion resistance than AISI 304, as it is a martensitic steel. It is more prone to corrosion in highly corrosive environments, whereas AISI 304 is better suited for such conditions.
6. What is the tensile strength of AISI 420?
   • The tensile strength of AISI 420 typically ranges between 600-800 MPa, making it suitable for high-stress applications such as surgical tools and industrial machinery components.