Kromite® #3 HRHT
4140/4150 Mod
Kromite #3 is a modified 4140/4150 steel. This chromium and molybdenum based alloy is electric furnace melt, vacuum degassed, stress relieved, and machine straightened. It is offered in the hot roll, heat treated condition. It has a typical hardness of 269/341 BHN and a typical tensile strength of 156,000 PSI. This proprietary product provides elevated strength, deep uniform hardness, excellent cleanliness, and refinement to the grain structure which enhances the fatigue resistance and overall performance of the steel.
Kromite #3 is an excellent alloy steel for machined parts requiring higher resistance to toughness, flex, torque and general wear.
Consideration should be given to use Kromite #3 in place of commercial alloy and carbon steel grades including: AISI 4140, 4150, 4340, 1018, 1020 and 1045 depending upon the requirement. Call or email us for a quote.
Features
| Hardness | 269/341 BHN |
| Tensile | 156,000 P.S.I. |
| Yield | 123,500 P.S.I. |
| Elongation in 2" | 17% |
| Reduction of Area | 55% |
*Based on 1/2″ test piece
*Heavy Hollow Sections properties may differ
- 1/2″
- 5/8″
- 3/4″
- 7/8″
- 1″
- 1-1/8″
- 1-1/4″
- 1-1/2″
- 1-5/8″
- 1-3/4″
- 2″
- 2-1/8″
- 2-1/4″
- 2-1/2″
- 2-3/4″
- 2-7/8″
- 3″
- 3-1/4″
- 3-1/2″
- 3-3/4″
- 4″
- 4-1/4″
- 4-1/2″
- 4-3/4″
- 5″
- 5-1/4″
- 5-1/2″
- 5-3/4″
- 6″
- 6-1/4″
- 6-1/2″
- 6-3/4″
- 7″
- 7-1/4″
- 7-1/2″
- 7-3/4″
- 8″
- 8-1/4″
- 8/1/2″
- 8-3/4″
- 9″
- 9-1/2″
- 9-3/4″
- 10″
- 10-1/2″
- 11″
- 11-1/4″
- 11-1/2″
- 12″
- 13″
- 13-1/2″
- 14″
- 15″
- 16″
- 1/2″
- 5/8″
- 3/4″
- 7/8″
- 1″
- 1-1/8″
- 1-1/4″
- 1-1/2″
- 1-3/4″
- 2”
- 2-1/2″
- 3”
- 3-1/2″
- 4”
- 6”
- 1/4″ x 1”
- 1/4″ x 1-1/2″
- 1/4″ x 2″
- 1/4″ x 3″
- 1/4″ x 4″
- 1/4″ x 5″
- 1/4″ x 6″
- 3/8″ x 1-1/2″
- 3/8″ x 2″
- 3/8″ x 2-1/2″
- 3/8″ x 3″
- 3/8″ x 4″
- 1/2″ x 1″
- 1/2″ x 1-1/2″
- 1/2″ x 2″
- 1/2″ x 2-1/2″
- 1/2″ x 3″
- 1-2″ x 3-1/2″
- 1/2″ x 4″
- 1/2″ x 5″
- 1/2″ x 6″
- 5/8″ x 2″
- 5/8″ x 3″
- 3/4″ x 1-1/2″
- 3/4″ x 2″
- 3/4″ x 2-1/2″
- 3/4″ x 3″
- 3/4″ x 4″
- 3/4″ x 5″
- 3/4″ x 6″
- 1″ x 1-1/4″
- 1″ x 1-1/2″
- 1″ x 2″
- 1″ x 2-1/2″
- 1″ x 3″
- 1″ x 4″
- 1″ x 5″
- 1″ x 6″
- 1-1/4″ x 2″
- 1-1/4″ x 2-1/2″
- 1-1/4″ x 3″
- 1-1/4″ x 3-1/2″
- 5/8″ x 2″
- 5/8″ x 3″
- 3/4″ x 1-1/2″
- 3/4″ x 2″
- 3/4″ x 2-1/2″
- 3/4″ x 3″
- 3/4″ x 4″
- 3/4″ x 5″
- 3/4″ x 6″
- 1″ x 1-1/4″
- 1″ x 1-1/2″
- 1″ x 2″
- 1″ x 2-1/2″
- 1″ x 3″
- 1″ x 4″
- 1″ x 5″
- 1″ x 6″
- 1-1/4″ x 2″
- 1-1/4″ x 2-1/2″
- 1-1/4″ x 3″
- 1-1/4″ x 3-1/2″
- 3-1/2 OD X 1-1/2 ID
- 3 OD – 1-1/2 ID
- 4-1/2 OD X 2-1/2 ID
- 4 OD X 2 ID
- 5 OD – 3 ID
- 6 OD – 3-1/2 ID
1Bar stock 10″ round and over is typically furnished rough turned and oversized to finish to the nominal size.
2Heavy Hollow is supplied as a rough size (O.D. and I.D.). It will not finish to its nominal size. Other sizes available.
Squares over 4-1/2″ and some flats may be furnished from plate. Standard plate cut tolerances apply.
Features
10/13 Ft. R/L, 20/26 Ft. R/L and Custom Cuts
Applications
Consider Kromite® #3
In place of other hot rolled, alloy and carbon steels including: AISI 4140, 4150, 4340, 1018, 1020 and 1045 depending upon the requirement