UNS S42000 Stainless Steel

Description

UNS S42000 is a high-carbon martensitic stainless steel designed for applications requiring high hardness, wear resistance, and moderate corrosion resistance. With higher carbon content than S41000, it can be heat-treated to reach high hardness levels. It offers better corrosion resistance than 410 and good polishability, making it suitable for cutting tools and precision components. It is magnetic and performs well in mild corrosive environments, though not recommended for high-chloride or marine conditions.

Chemical Composition (wt%)

C: 0.15–0.30, Cr: 12.00–14.00, Mn ≤ 1.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030, Ni ≤ 0.75

Mechanical Properties

Tensile Strength ≥ 620 MPa, Yield Strength ≥ 450 MPa, Elongation ≥ 12%, Hardness ≤ 223 HB

Advantages

High hardness and wear resistance; good polishability; heat-treatable; magnetic; better corrosion resistance than 410.

Applications

Knives, blades, cutlery, molds, valves, bearings, surgical tools, and wear-resistant components.

Equivalent Grades

AISI 420, EN 1.4021, GB 20Cr13

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.