• 9341 Penn Ave S, Bloomington, MN 55431
  • 800-447-3317

420 Modified Stainless Steel – Enhanced Strength and Machinability

Introduction to 420 Modified Stainless Steel

420 Modified Stainless Steel is a variation of standard 420 Stainless, offering improved strength, ductility, and machinability. While regular 420 Stainless Steel is primarily known for its hardness and corrosion resistance, 420 Modified is engineered to deliver superior mechanical properties, making it ideal for applications requiring higher strength and wear resistance. It is commonly used in industries such as medical, cutlery, and industrial tools where high durability is a must.

Differences Between 420 and 420 Modified Stainless Steel

The main difference between 420 Stainless Steel and 420 Modified Stainless Steel lies in the mechanical enhancements. While standard 420 is known for its ability to achieve high hardness after heat treatment, 420 Modified offers improved strength and toughness with better machinability. The modified version typically has a slightly altered chemical composition, often with higher carbon content, allowing it to maintain strength without becoming brittle, and making it easier to machine during production.

Strength, Hardness, and Wear Resistance

420 Modified Stainless Steel is highly regarded for its balance of strength, hardness, and wear resistance. After heat treatment, this alloy achieves a high level of hardness, making it an excellent choice for components exposed to abrasion or wear. However, it stands out from regular 420 by offering greater toughness, reducing the risk of cracking or brittle failure, even in high-stress applications.

Corrosion Resistance and Durability

Like standard 420 Stainless, 420 Modified Stainless Steel provides excellent corrosion resistance in mild environments. It is particularly useful in situations where both corrosion resistance and high hardness are required. This makes it suitable for applications in the medical, cutlery, and tooling industries, where durability and long-term performance are critical.

Applications of 420 Modified Stainless Steel

Thanks to its enhanced mechanical properties, 420 Modified Stainless Steel is a versatile material used across a range of industries:

  • Medical Instruments: Ideal for surgical tools and dental instruments requiring high hardness and corrosion resistance.
  • Cutlery and Blades: Used for high-quality knives, scissors, and cutting tools that need superior wear resistance and edge retention.
  • Industrial Tools: Suitable for punches, dies, and other tooling that requires a tough, wear-resistant material.
  • Automotive Components: Used in parts like shafts and springs where both hardness and wear resistance are necessary.
  • Molds and Dies: Used in plastic molding and die-casting where both corrosion resistance and strength are needed.

Buy 420 Modified Stainless Steel From M. Vincent

At M. Vincent, we supply 420 Modified Stainless Steel in round bar to meet the requirements of industries like medical, tooling, and automotive. We offer competitive pricing, fast delivery, and expert support to ensure you receive the best materials for your project. Contact us today to learn more or to request a quote.

Chemical Data, Mechanical Properties and Specifications for 420 MOD Stainless Steel

Chemical Range For 420 MOD
Element Minimum Maximum
Carbon 0.37 0.45
Chromium 15.0 16.0
Iron Balance --
Manganese -- 0.60
Molybdenum 1.50 1.90
Nickel 0.15 0.25
Phosphorus -- 0.02
Silicon -- 0.60
Sulphur -- 0.005
Vanadium 0.20 0.40

 

Typical Mechanical Properties for 420 MOD
Form Tensile Strength Yield Strength Elongation at Break
Annealed Bar 100 ksi 80 ksi to 95 ksi 20%

 

Specifications
ASTM F899
DIN X40CrMoVN16-2)
AMS 5925 (Chems)
UNS S42025
Chronifer ® M-15 KL
X15TN ®

Get a Quote on 420 Mod Stainless Steel