This chromium nickel molybdenum alloy is a widely used deep-hardening constructional steel. It is used at a variety of strength levels and at each level possesses remarkable ductility and toughness. With its high alloy content uniform hardness is developed by heat treatment in relatively heavy sections. High fatigue strength makes E-4340 ideal for highly stressed parts. It maintains its strength and hardness at elevated temperatures.

This grade is available as electric furnace vacuum degassed steel to meet the high aircraft quality standards of AMS 2301. Thus, it is suitable for the fabrication of parts which may be subjected to magnetic particle inspection.

This grade is also available as a Premium Aircraft Quality product. The regular aircraft quality material is remelted in a vacuum using consumable electrode practice. This results in a much cleaner steel meeting the magnetic particle test requirements of AMS-2300 and insures a steel of the highest quality with excellent transverse ductility and toughness at high strength levels.

UNS G43406, MIL-S-8844 - AMS 6414 - AMS 2300

Color Marking: Ends painted Red with Gold Stripe

Physical Conditions E
Surface Condition 4

Stock Lengths: 12' and 20'

Maximum Brinell 235

This chromium nickel molybdenum alloy is a widely used deep-hardening constructional steel. It is used at a variety of strength levels and at each level possesses remarkable ductility and toughness. With its high alloy content uniform hardness is developed by heat treatment in relatively heavy sections. High fatigue strength makes E-4340 ideal for highly stressed parts. It maintains its strength and hardness at elevated temperatures.

This grade is available as electric furnace vacuum degassed steel to meet the high aircraft quality standards of AMS 2301. Thus, it is suitable for the fabrication of parts which may be subjected to magnetic particle inspection.

This grade is also available as a Premium Aircraft Quality product. The regular aircraft quality material is remelted in a vacuum using consumable electrode practice. This results in a much cleaner steel meeting the magnetic particle test requirements of AMS-2300 and insures a steel of the highest quality with excellent transverse ductility and toughness at high strength levels.

UNS G43406, MIL-S-8844 - AMS 6414 - AMS 2300

Color Marking: Ends painted Red with Gold Stripe

Physical Conditions E
Surface Condition 1

Stock Lengths: 20'

Maximum Brinell 235

This chromium nickel molybdenum alloy is a widely used deep-hardening constructional steel. It is used at a variety of strength levels and at each level possesses remarkable ductility and toughness. With its high alloy content uniform hardness is developed by heat treatment in relatively heavy sections. High fatigue strength makes E-4340 ideal for highly stressed parts. It maintains its strength and hardness at elevated temperatures.

This grade is available as electric furnace vacuum degassed steel to meet the high aircraft quality standards of AMS 2301. Thus, it is suitable for the fabrication of parts which may be subjected to magnetic particle inspection.

This grade is also available as a Premium Aircraft Quality product. The regular aircraft quality material is remelted in a vacuum using consumable electrode practice. This results in a much cleaner steel meeting the magnetic particle test requirements of AMS-2300 and insures a steel of the highest quality with excellent transverse ductility and toughness at high strength levels.

UNS G43406, MIL-S-8844 - AMS 6414 - AMS 2300

Color Marking: Ends painted Red with Gold Stripe

Physical Conditions E
Surface Condition 1

Stock Lengths: 12' and 20'

Maximum Brinell 235

These plates are rolled from highest quality steel, manufactured by the electric furnace process, to meet the rigid standards of the aircraft industry. They are uniform in quality and condition and are free from internal and external defects that would be detrimental to the fabrication or performance of parts.

The plates are produced by rolling on large "sheared plate" mills. As the slab is reduced in thickness, it is cross-worked to produce a quality plate that is sound and dense with excellent properties in both longitudinal and transverse directions.

UNS G43406, AMS 6359

Color Marking: Corner striped Aluminum