Alloy Steel

Alloy Steel Precision Ground Bars

Alloy steel precision ground bars are high-quality steel bars that have been machined and ground to tight tolerances for improved dimensional accuracy, straightness, and surface finish. These bars are commonly used in applications requiring high strength, wear resistance, and precise machining capabilities.

Key Features:

  • Material Composition: Typically made from alloy steels like 4140, 4340, or other grades with elements such as chromium, molybdenum, and nickel for enhanced mechanical properties.
  • Tight Tolerances: Ground to precise diameters, often within ±0.0005 inches or better, depending on requirements.
  • Superior Surface Finish: Smooth, polished finish that reduces friction and improves wear resistance.
  • High Strength & Hardness: Ideal for demanding industrial applications.
  • Good Machinability & Stability: Minimizes warping or distortion during machining.

Common Applications:

  • Aerospace & Automotive: Used in shafts, gears, and precision components.
  • Tool & Die Making: Ideal for making punches, dies, and jigs.
  • Hydraulic & Pneumatic Systems: Suitable for piston rods and actuators.
  • Machine Components: Bearings, spindles, and bushings.

Available Sizes & Shapes:

  • Round Bars
  • Flat Bars
  • Square Bars
  • Custom Cut Lengths
Alloy steel round bars come in various grades, each offering different mechanical properties, corrosion resistance, and heat treatment capabilities. Here are some commonly used alloy steel grades:

Low Alloy Steel Grades

  • 4140 – Chromium-molybdenum steel known for strength, toughness, and wear resistance.
  • 4340 – Nickel-chromium-molybdenum steel with high toughness and fatigue resistance.
  • 8620 – Low-carbon nickel-chromium-molybdenum case-hardening steel with good toughness.

Medium & High Alloy Steel Grades

  • 6150 – Chromium-vanadium steel with excellent toughness and strength.
  • 52100 – High-carbon chromium-bearing steel known for hardness and wear resistance.
  • 4130 – Chromium-molybdenum steel used in aerospace and automotive applications.

Tool & Die Steel Grades

  • H13 – Hot-work tool steel with high heat resistance and toughness.
  • D2 – High-carbon, high-chromium tool steel with high wear resistance.