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Product Overview
INTRODUCTION TO STAINLESS STEEL 420HC / UNS S42000 / AISI 420HC
MOKSH TUBES & FITTINGS LLP is a trusted supplier, exporter, importer, and stockist of a wide range of Stainless Steel 420HC products including Pipes & Tubes, Sheets & Plates, Coils, Bars, Wires, Pipe Fittings, Flanges, Fasteners, and Custom Fabricated Components.
Stainless Steel 420HC is a high-carbon martensitic stainless steel and a modified version of the standard 420 grade, designed with increased carbon content for enhanced hardness and wear resistance. The “HC” stands for High Carbon, giving the alloy the capability to reach hardness levels up to approximately 56 HRC after proper heat treatment—higher than conventional 420.
This grade is recognized for its excellent polishability, good corrosion resistance in mild environments, and superior edge retention. These properties make it a preferred choice in the manufacturing of cutlery, surgical instruments, valve components, precision tools, and mechanical parts that demand a balance of strength and cost-effectiveness.
420HC Stainless Steel can be readily hardened by heat treatment and responds well to quenching and tempering processes. It also offers good machinability in the annealed condition. While its corrosion resistance is somewhat lower than that of austenitic stainless steels like 304, it performs effectively in fresh water, air, and mild chemical environments, combining durability with affordability.
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Chemical Composition of SS 420HC
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.40 – 0.50 |
| Chromium (Cr) | 12.00 – 14.00 |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.040 max |
| Sulfur (S) | 0.030 max |
| Nickel (Ni) | ≤ 1.00 (typical) |
| Iron (Fe) | Balance |
Mechanical Properties of SS 420HC (Hardened & Tempered)
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 700 – 850 MPa | 102,000 – 123,000 psi |
| Yield Strength (0.2%) | 500 – 600 MPa | 72,500 – 87,000 psi |
| Elongation | 15 – 20 % | 15 – 20 % |
| Hardness | 52 – 56 HRC | 52 – 56 HRC |
| Impact Toughness | Moderate | Moderate |
Note: Mechanical properties depend on exact heat treatment cycles (annealing, hardening, tempering).
Products in Stainless Steel 420HC
With our specialized manufacturing capabilities and extensive global sourcing network, MOKSH TUBES & FITTINGS LLP offers a comprehensive range of high-performance Stainless Steel 420HC products designed for diverse industrial and commercial applications. Known for its excellent hardness, polishability, and wear resistance, 420HC Stainless Steel serves as an ideal material for high-precision and durable components.
We offer Stainless Steel 420HC in a wide range of product forms, engineered for maximum strength, durability, and reliability.
Uses and Advantages of 420HC stainless steel
High Hardness & Edge Retention
Achieves superior hardness levels through precise heat treatment processes.
Moderate Corrosion Resistance
Performs well in fresh water, air, and mild chemical environments.
Excellent Polishability
Ideal for decorative applications and precision-finished parts requiring high polish.
Good Wear Resistance
Suitable for cutting, sliding, and high-contact mechanical applications.
Heat-Treatable for Enhanced Properties
Simple hardening and tempering treatments improve mechanical strength and performance.
Cost-Effective Alloy
Provides a balanced combination of performance, durability, and affordability.
Applications of Stainless Steel 420HC
Stainless Steel 420HC is widely used in applications requiring high hardness, moderate corrosion resistance, and long-term durability across multiple industries.
Chemical Processing
Oil & Gas
Marine
Pharmaceutical
Heat Exchangers
Power Plants
WHY CHOOSE US?
FAQ’s – 420HC Stainless Steel
What is 420HC Stainless Steel?
420HC Stainless Steel is a high-carbon martensitic stainless steel designed for superior hardness, wear resistance, and corrosion resistance. It is widely used in knives, cutting tools, and precision components.
What are its main properties?
High hardness after heat treatment
Excellent edge retention
Good corrosion resistance
Wear and abrasion resistance
Good machinability and polishability
Where is it used?
Knife blades, surgical instruments, hand tools, cutting tools, bearings, and wear parts.
Is it weldable?
Yes, but welding is limited due to high carbon content; post-weld heat treatment is recommended to restore hardness and corrosion resistance.
Why choose Mokshtubes?
Mokshtubes offers high-quality 420HC stainless steel with guaranteed standards, precision manufacturing, and global delivery for your specialized needs.
Contact Us
For more information, technical support, or to request a quote for Stainless Steel 420HC, contact Moksh Tubes & Fittings LLP – your trusted partner for high-quality stainless steel products and custom solutions.
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