Please update your browser.

CarpenterTechnology.com doesn’t support this browser version any longer. Using an updated browser will provide a better experience.

Learn more about recommended browser requirements for CarpenterTechnology.com

< Back

440B

UNS #S44003

440B is a high-carbon chromium stainless steel that attains a hardness of Rockwell C 58 when heat treated. This high-carbon chromium steel is designed to provide stainless properties with excellent hardness. In some respects it behaves similarly to tool steels.

Type Analysis

  • Carbon (Maximum) 0.75-0.95
  • Phosphorus (Maximum) 0.04
  • Silicon (Maximum) 1
  • Manganese (Maximum) 1
  • Sulfur (Maximum) 0.03
  • Chromium (Nominal) 16.00-18.00
  • Molybdenum (Nominal) 0.75
  • Iron (Nominal) Balance

Downloads

Request a Quote

Applications

Applicable Specifications

  • ASTM A276
  • ASTM A473
  • ASTM F899
  • ASTM A314
  • ASTM A580
  • QQ-S-763

Bar

Rounds

Billet

Strip

Wire

Rod

Technical Information

RELATED RESOURCES

Browse our growing library of resources including case studies, product brochures, technical data sheets, product selection guides and more.

Go To Resource Library