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This chromium-molybdenum alloy is one of the most widely used aircraft steels because of its combination of weldability, ease of fabrication, and mild hardenability. In relatively thin sections it will respond to heat treatment to high strength levels and yet in the normalized condition it has adequate strength for many applications. When resistance to wear and abrasion is required, it may be nitrided.
This grade is a quality product melted under the best steelmaking practices for aircraft quality steels. It is vacuum degassed to meet the magnetic particle inspection standards of AMS 2301.

UNS G41300, MIL-S-6758 - AMS 6370 - AMS 2301

Physical Conditions D
Surface Condition 4

Stock Lengths 12' Approx.
Unit of Measure
Items Hexagons
1/4
4130 Aircraft Normalized & Cold Finished Alloy Bars - Hexagons
Hexagons
3/8
4130 Aircraft Normalized & Cold Finished Alloy Bars - Hexagons
Hexagons
1/2
4130 Aircraft Normalized & Cold Finished Alloy Bars - Hexagons
Hexagons
9/16
4130 Aircraft Normalized & Cold Finished Alloy Bars - Hexagons
Hexagons
5/8
4130 Aircraft Normalized & Cold Finished Alloy Bars - Hexagons
Estimated Weight per Foot N/A .1842 lb N/A .4145 lb N/A .7368 lb N/A .9325 lb N/A 1.151 lb
Estimated Weight 12-Ft. Bar N/A 2.210 lb N/A 4.973 lb N/A 8.842 lb N/A 11.19 lb N/A 13.82 lb