420 Stainless Steel
UNS S42000 | ASTM A276/A484 | AMS 5621 |AMS QQ-S763420 Stainless Steel
Stainless steel grade 420 is martensitic, magnetic and heat-treatable with excellent corrosion resistance to a variety of environments, including freshwater, seawater, and acids. Grade 420 is hard and can be heat-treated to a very high hardness (up to 60 HRC). This makes it a good choice for applications where wear resistance is important, such as knives, saw blades, and surgical instruments. Chromium is added to a minimum content of 12%. Grade 420 is ductile when annealed and has excellent corrosion resistance when polished or hardened. Grade 420 stainless steel has a bright, silver-grey appearance and it can be polished to a mirror finish.
Common industry/applications are: Industrial Chains, Bearings, Firearms, Surgical Instruments, Pumps & Valves, Plastic Injection Molds & Dies, and Cutlery.
Product forms include round bar, plate & sheet, and forgings.
Standards
- UNS S42000
- ASTM A276/A484
- AMS 5621
- AMS QQ-S763
Characteristics
- High carbon variant of 410.
- Higher achievable strength and hardness compared to 410.
- High wear resistance and edge retention properties.
Physical Properties
- Density: 0.278 LB/in³ (7.74g/cm³)
- Melting Point: 2650-2750°F (1454-1510°C)
- Modulus of Elasticity: 29 x 103 ksi (200 x 103 MPa)
Chemical Composition
* Potential optional additions by some manufacturers
C
Mn
S
P
Si
Cr
Ni
Cu
Al
Mechanical Properties: Tempered
Temperature, °F
Strength, ksi
Strength, ksi
HRC
Specialty Steel Supply makes all reasonable efforts to ensure the accuracy and correctness of the data found on this website and the associated documents but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
Stainless and Alloys
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Specialty Steel Supply Inc. is one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels. We have a wide range of products and types of stainless steel round bar and our well trained staff offers many years of experience in all aspects of the steel industry. Our ability to procure and source metals from all parts of the world allows us to stay competitive in a global marketplace. We are committed to developing and servicing just in time inventory programs.
Specialty Steel Supply
19201 Circle Lake Drive
Pinehurst, Texas 77362
info@specialtysteelsupply.com
Business Hours
Sunday - Closed
