Alloy Steel

Understand the specifications of our Alloy Steel.

Product Types

  • Plate
  • Bar
  • Sheet
  • Tubing
  • Pipe
  • Wire

Alloy Steel 4130

A common general purpose grade of medium carbon, Cr-Mo steel. Flexibility afforded by heat treatment options allows it to attain a range of toughness and strength values. Good hardenability, strength, wear resistance, toughness, and ductility.

Alloy Steel 4140

Normalized: heated to 815°C, air cooled. Medium-carbon steel with high hardenability and good fatigue, abrasion and impact resistance.

Alloy Steel 4145

Oil quenched. Forging temp.: 1205°C (2200°F) max. Annealing temp.: 790 - 845°C. Hardening temp.: 815 - 845°C. Tempered to desired hardness.

Alloy Steel 4330

Alloys for general structural use.

Alloy Steel 4340

AISI 4340 has a favorable response to heat treatment (usually oil quenching followed by tempering) and exhibits a good combination of ductility and strength when treated thusly. Uses include piston pins, bearings, ordnance, gears, dies, and pressure vessels.

Alloy Steel 8630

Heated to 870°C, air cooled.