We stock AISI 4140 and AISI 4150 steel in a turned ground & polished finish (TGP). Call or Email Us For a Free Quote. Material is quench & tempered, stress relieved, machine straightened, and turned ground & polished. We offer an extensive inventory of hard-to-find sizes in both English and Metric sizes. Length options include (10/12 Ft Random Lengths, 20/24 Ft Random Lengths and Custom Cut-To-Lengths). Alloy 4140 and 4150 are widely used materials as an alternative to carbon steel where strength and fatigue are of concern.

Typical Mechanical PropertiesAvailable Lengths
Brinnell Hardness – 269/341BHN
Tensile Strength – 156,000 PSI
Yield Strength – 123,500 PSI
10/13 Ft R/L
20/26 Ft R/L
Custom Cut-To-Lengths
1/4 1-3/16 2-1/4 3-5/16 4-1/2
5/16 1-1/4 2-5/16 3-3/8 4-3/4
3/8 1-15/16 2-3/8 3-7/16 4-15/16
7/16 1-3/8 2-7/16 3-1/2 5
1/2 1-7/16 2-1/2 3-9/16 5-1/4
9/16 1-1/2 2-9/16 3-5/8 5-7/16
5/8 1-9/16 2-5/8 3-11/16 5-1/2
11/16 1-5/8 2-11/16 3-3/4 5-5/16
3/4 1-11/16 2-3/4 3-7/8 6
7/8 1-3/4 2-7/8 3-15/16 6-1/2
15/16 1-7/8 2-15/16 4 7
1 1-15/16 3 4-1/4 8
1-1/16 2 3-1/16 4-3/8
1-1/8 2-1/16 3-1/4 4-7/16

Request Quote or Call 800-321-8500

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Phone: 800.321.8500