Alloy Steel Sheet

• Introduction to 4130 Sheet
• Typical Chemical Analysis
• Typical Mechanical Properties

Introduction to 4130 Sheet

4130 sheet (UNS G41300) is made from quality steel melted to meet the rigid standards of the aircraft industry. It is carefully rolled and inspected to be free from laminations and tears. It is also free from pits, blisters, grooves, and seams, which cannot be removed without reducing its thickness below the minimum permissible dimensional tolerance limits.
Applications: Intended for general use where welding and moderate tensile properties are required. Sheet is used where 168 ksi minimum tensile strength is required in sections up to .125" thick, and where proportionately lower strength is required in heavier thicknesses.

Size Range: .025" - .190" (.6 mm - 5 mm)

• American Specifications: AMS 6350, MIL-S-18729, AMS 6345
• British Specifications: 708 A 25
• Applications: Intended for general use where welding and moderate tensile properties are required. Sheet is used where 168 ksi minimum tensile strength is required in sections up to .125" thick, and where proportionately lower strength is required in heavier thickness
• Size Range: .025" - .190" (.6mm - 5mm)
• Weldability : yes
• Heat Treating : Normalize, 1600°F - 1700°F; quench, oil; austenitize, 1500°F - 1600°F; temper, 700°F - 1250°F

Typical Chemical Analysis

Typical Mechanical Properties