Privacy | Contact
Home About Services Request a Quote Contact
Metric Steel

AISI 4140

This medium carbon alloy grade is widely used for many general purpose parts requiring high tensile strength and toughness. 4140 contains chromium and molybdenum as alloying elements and may be heat treated over a wide range to give the combined advantages of proper hardness, strength and ductility. In conditions where localized hardness may be required, this steel is readily flame or induction hardened.

Carbon (C).38/.43
Manganese (Mn).75/1.00
Silicon (Si).15/.30
Tungsten (W)
Molybdenum (Mo).15/.25
Chromium (Cr).80/1.10
Phosphorus (P).035 MAX
Sulphur (S).040 MAX

Process Shape Size
Cold Drawn Annealed
1/4" x 2" to 2" x 6"
1/2" - 2"
1/4" - 2"
Heat Treated Round 1" - 12" diameter
Turned, Ground & Polished (TGP) Round
3/8" - 5"
20mm - 100mm
Hot Rolled Annealed Round
2 1/2" - 12" diameter

Inquiries call: (905) 664-9911 *Toll Free: 1-888-649-9911 or Fax: (905) 664-9912

Web design by Virtual Image, Hamilton, Ontario