4140/4142 Alloys Round Bar Stock

4142 and 4142 alloys are used in various industrial applications.

4140/4142 Alloys

4140 is a Chromium-Molybdenum alloy steel that is one of the most commonly used alloy steels.

Thus, the primary alloying elements are chromium and molybdenum. As a result, 4140 is used in applications that require high wear resistance and high temperatures. Meanwhile, 4142 alloys are used in various industrial applications, including tools and other types of equipment. After heat treatment, it is a medium carbon chromium-molybdenum alloy steel with high strength and toughness.

O'Hare 4140/4142 Alloys Round Bar Stock

O’Hare Precision Metals can provide a wide range of company-supplied or customer-supplied components and materials. Just like how we can offer you the best 4140/4142 Alloys bar stocks and 4140/4142 Alloys round bar stocks in O’Hare!

Machinability and other Processes

4140 has a machinability rating of 66 percent, which is excellent. However, the presence of molybdenum contributes to the uniformity of hardness and high strength. Also, it is a complicated metal to weld, but it is possible if the section is preheated before welding and then stress relieved after welding.

4142 Alloy Steel is a through-hardening alloy steel with high strength and toughness after heat treatment. It possesses excellent fatigue and impact resistance. Alloy steels with tensile and yield strengths in 4140/4142 are available. The machinability of steel increases as it is hardened and tempered.

Applications

Axles, shafts, tools bodies, tie rods, stubs, couplings, reamers, gears, racks are the common applications of 4140/4142 Alloys.

Properties

Density

Poisson’s ratio

Elastic modulus

Bulk modulus

Shear modulus

0.284 lb/in³

0.27-0.30

27557-30458 ksi

20300 ksi

11600 ksi

Chemical Properties

Carbon

Chromium

Manganese

Molybdenum

Phosphorous

Silicon

Sulfur

Iron

0.40-0.45 0.380 – 0.430

0.80-1.10 0.80 – 1.10

0.75-1.10 0.75 – 1.0

0.15-0.25 0.15 – 0.25

0.035 0.035

0.15-0.30 0.15 – 0.30

0.040 0.040

96.725 Balance

Want to know more about 4140/4142 Alloys? Just contact our highly skilled personnel in O’Hare Precision Metals. They are dedicated to providing smooth-flow service. Request a quote for 4140/4142 Alloys bar stocks now!