UNS S44002 Stainless Steel

Description

UNS S44002 (440A) is the lowest-carbon grade in the 440 series, offering balanced hardness, wear resistance, and corrosion resistance. It can be heat-treated to high hardness and has better formability and weldability than 440B and 440C. It provides good corrosion resistance in mild environments and is widely used in tools and mechanical components.

Chemical Composition (wt%)

C: 0.60–0.75, Cr: 16.00–18.00, Mn ≤ 1.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030, Mo ≤ 0.75

Mechanical Properties

Tensile Strength ≥ 760 MPa, Yield Strength ≥ 550 MPa, Elongation ≥ 10%, Hardness 54–58 HRC (heat-treated)

Advantages

Good hardness and wear resistance; better formability than 440B/440C; heat-treatable; magnetic.

Applications

Knives, blades, valves, bearings, cutlery, and general tooling components.

Equivalent Grades

AISI 440A, EN 1.4116, GB 7Cr17

 

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.