Overview
The 440B alloy is a martensitic stainless steel with good strength and hardness but excellent corrosion resistance and wear resistance.
Typical Uses
Valve components, pump parts, and bearings.
MetalTek Grade
MTEK 440B
Similar Specifications
Wrought UNS: S44003
Wrought Grade: 440B
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: 0.75-0.95
Chromium: 16-18
Manganese: 1
Iron: BAL
Copper: n/a
Nickel: n/a
Lead: n/a
Tin: n/a
Silicon: 1
Zinc: n/a
Other: Mo 0.75
Minimum Mechanical Properties
Heat Treatment: Anneal
NOTES: Brinell value is MAX.