4130 Aircraft Normalized & Cold Finished Alloy Bars

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.

Size	Estimated Weight per Foot	Estimated Weight 12-Ft. Bar
1/4	N/A .1842 lb	N/A 2.210 lb
3/8	N/A .4145 lb	N/A 4.973 lb
1/2	N/A .7368 lb	N/A 8.842 lb
9/16	N/A .9325 lb	N/A 11.19 lb
5/8	N/A 1.151 lb	N/A 13.82 lb
3/4	N/A 1.658 lb	N/A 19.89 lb
7/8	N/A 2.257 lb	N/A 27.08 lb
1	N/A 2.947 lb	N/A 35.37 lb
1 1/4	N/A 4.605 lb	N/A 55.26 lb
1 3/8	N/A 5.572 lb	N/A 66.87 lb
1 1/2	N/A 6.631 lb	N/A 79.56 lb
1 3/4	N/A 9.026 lb	N/A 108.3 lb
2	N/A 11.79 lb	N/A 141.5 lb

1/4

N/A .1842 lb

N/A 2.210 lb

3/8

N/A .4145 lb

N/A 4.973 lb

1/2

N/A .7368 lb

N/A 8.842 lb

9/16

N/A .9325 lb

N/A 11.19 lb

5/8

N/A 1.151 lb

N/A 13.82 lb

3/4

N/A 1.658 lb

N/A 19.89 lb

7/8

N/A 2.257 lb

N/A 27.08 lb

N/A 2.947 lb

N/A 35.37 lb

1 1/4

N/A 4.605 lb

N/A 55.26 lb

1 3/8

N/A 5.572 lb

N/A 66.87 lb

1 1/2

N/A 6.631 lb

N/A 79.56 lb

1 3/4

N/A 9.026 lb

N/A 108.3 lb

N/A 11.79 lb

N/A 141.5 lb

Product Catalog

Size

Estimated Weight per Foot

Estimated Weight 12-Ft. Bar