SAE AISI 8630 Alloy Steel Chrome Moly Bars

Product Description

Technical Overview

AISI 8630 is a low-alloy steel containing Nickel, Chromium, and Molybdenum (often called "8600 series" or "Ni-Cr-Mo" steel). It is a medium-hardenability grade that offers excellent atmospheric corrosion resistance and better strength than standard carbon steels. It is particularly noted for its superior weldability compared to higher carbon alloys like AISI 4130.

Key Specifications & Properties

Common Applications

Due to its toughness and ease of welding, 8630 round bars are a staple in:

• Oil & Gas Industry: Wellhead components, connector bodies, and valve parts.

• Aerospace & Defense: Structural parts that require high strength-to-weight ratios.

• Automotive: Connecting rods, gears, and forged shafts.

• General Engineering: High-tensile fasteners and heavy-duty machinery components.

Features for Your Product Description

• Excellent Weldability: One of the best performing alloy steels for welding applications, minimizing the risk of cold cracking.

• High Impact Toughness: Maintains structural integrity under heavy shock loads.

• Heat Treatment Response: Can be easily Normalized, Annealed, or Quenched and Tempered to meet specific hardness requirements.

• Corrosion Resistance: The addition of Nickel and Chromium provides enhanced protection against environmental wear.