What is the yield strength of 4140 steel?

415 MPa 60,200 PSI
Mechanical Properties

Properties Metric Imperial
Tensile Strength 655 MPa 95,000 PSI
Yield Strength 415 MPa 60,200 PSI
Bulk Modulus 140 GPa 20,300 KSI
Shear Modulus 80 GPa 11,600 KSI

What is 30CrNiMo8?

30CrNiMo8 Alloy Steel- Quenching and tempering steel with a very high hardenability. 30CrNiMo8 Steel is a heat treatable steel which has at least 1.8%Cr,1.8%Ni, and 0.3%M0 as strengthening alloy elements. It is usually supplied with quenched and tempered condition with a typical tensile strength of 1100 -1300 N/mm².

What is HRC of 4140?

4140 is an alloy steel that is supplied in either the annealed or prehardened condition. The prehardened condition is heat treated to a medium hardness (HRC 28/32) and is designated as 4140 HT.

What is the tensile strength of 4140 Prehard?

153 KSI
4140 HT Oil Quenched & Tempered: Typical Tensile Strength: 153 KSI.

What is the material composition of AISI 4340 steel?

AISI 4340 is a low alloy steel containing nominally 0.4% C, 0.8% Cr, 0.25% Mo and 1.8% Ni. Higher strength levels up to 150 KSI 0.2% PS may be achieved by suitable heat treatment. Often used in preference to AISI 4140 at the higher strength levels because of its better hardenability and improved CVN impact toughness.

What is the maximum hardness of 4140?

Surface hardness achievable is 600 to 650HV. Atlas 4140 can be surface hardened to 58HRC (typical value).

What is the yield strength of AISI 4140 steel quenched and tempered at 400 F?

1515 MPa 219700 psi

Physical Properties Metric English
Hardness, Rockwell C 52 52
Hardness, Vickers 552 552
Tensile Strength, Ultimate 1795 MPa 260300 psi
Tensile Strength, Yield 1515 MPa 219700 psi

What is the difference between 4140 and 1045 steel?

4140 steel is chromium, molybdenum, manganese steel with good toughness, impact resistance and fatigue strength. 1045 has slightly increased tensile strength and yield strength numbers than 1045 as a result of a slightly higher carbon content.