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4130 sheets and plates are made from quality steel melted to meet the rigid standards of the aircraft industry. They are carefully rolled and inspected to be free from laminations and tears. They are also free from pits, blisters, grooves, and seams which cannot be removed without reducing their thickness below the minimum permissible dimensional tolerance limits.

UNS G41300, MIL-S-18729 - AMS 6350

Color Marking: Corner striped Blue and Gold

Stock Widths: 18", 24", 36" 72", 84", 96"
Stock Lengths: 72", 144" 240"
Unit of Measure

Specifications

Estimated Weight per Sq. Ft.

 N/A 7.752 lb

Estimated Weight per Seet 24"x72"

 N/A 93.0 lb

Estimated Weight per Seet 36"x72"

 N/A 140 lb

Analysis

N/A Carbon .28/.33
Manganese .40/.60
Phosphorus .025 Max.
Sulphur .025 Max.
Si. .20/.35
Cr. .80/1.10
Mo. .15/.25

Applications

N/A Intended for general use where welding and moderate tensile properties are required. Sheet is used where 168,000 psi minimum tensile strength is required in sections up to .125" thick, and where proportionately lower strength is required in heavier thicknesses.

Mechanical Properties

N/A Minimum mechanical properties are as follows: Tensile Strength - 85.000 psi Min.

Heat Treating

N/A Normalize—1600°/1700°F Quench—Oil
Austenitize— 1500°/1600°F Temper—700°/1250°F