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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 F
Surface Condition 4

Stock Lengths 12'
Unit of Measure
Items Flats
1/4 x 1/2
4130 Aircraft Heat Treated & Cold Finished Alloy Bars - Flats
Flats
1/4 x 3/4
4130 Aircraft Heat Treated & Cold Finished Alloy Bars - Flats
Flats
1/4 x 1
4130 Aircraft Heat Treated & Cold Finished Alloy Bars - Flats
Flats
1/4 x 1 1/4
4130 Aircraft Heat Treated & Cold Finished Alloy Bars - Flats
Flats
1/4 x 1 1/2
4130 Aircraft Heat Treated & Cold Finished Alloy Bars - Flats
Estimated Weight per Foot N/A .4254 lb N/A .6381 lb N/A .8508 lb N/A 1.064 lb N/A 1.276 lb
Estimated Weight 12-Ft. Bar N/A 5.105 lb N/A 7.657 lb N/A 10.21 lb N/A 12.76 lb N/A 15.31 lb