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4150 Modified Resulphurized is a free-machining chromium-molybdenum alloy steel. It is a relatively high hardenability alloy so that in the heat treated condition it has good overall strength and toughness. Being a resulphurized steel, it machines easily. It is supplied in the heat treated condition to a Brinell hardness of 262-311.

Stock Lengths 20' Approx.
Unit of Measure
1 

Size

Estimated Weight per Foot

Estimated Weight 20-Ft. Bar

11 N/A 323.4 lb N/A 6468 lb
12 N/A 384.9 lb N/A 7698 lb
12 1/2 N/A 417.6 lb N/A 8353 lb
13 N/A 451.7 lb N/A 9034 lb
13 1/2 N/A 487.1 lb N/A 9743 lb
14 N/A 523.9 lb N/A 10478 lb
15 N/A 601.4 lb N/A 12028 lb
16 N/A 684.3 lb N/A 13685 lb
16 1/2 N/A 727.7 lb N/A 14554 lb
17 1/2 N/A 818.6 lb N/A 16371 lb
18 N/A 866.0 lb N/A 17320 lb
Unit of Measure
1