Is 4140 high tensile?
4140 is a 1% chromium – molybdenum medium hardenability general purpose high tensile steel – generally supplied hardened and tempered in the tensile range of 850 – 1000 Mpa (condition T).
How do you use HT 4140?
For 4140 steel, the recommended heat treatment [1] consists of heating to austenitizing temperature, typically 1570°F (855°C), followed by oil quenching. Tempering (reheating after quenching) will achieve the desired hardness range.
Can you machine 4140 HT?
4140 responds readily to heat treatment and is comparatively easy to machine in the heat-treated condition. 4140 resists creep in temperatures up to 1000 degrees Fahrenheit and maintains its properties even after long exposure at these high working temperatures. The chromium content provides good hardness penetration.
What is RC in heat treatment?
Rockwell Hardness (RC) Values of Heat Treated Mild Steel Springs.
What are the types of steel 4140?
AISI 4140 Alloy Steel (UNS G41400) Alloy steels are designated by AISI four-digit numbers and comprise different kinds of steels, each with a composition which exceeds the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va set for carbon steels. AISI 4140 alloy steel is a chromium-, molybdenum-, and manganese-containing low alloy steel.
What is the hardness of 4140 steel?
4140 Heat Treated is a chromium-molybendium alloy steel. 4140 HT is the most commonly used high tensile steel with endless applications including everything from gears and pumps to various applications in the automotive and construction industry. 4140 HT has a medium hardness of 28/32 HRC.
What is the tensile strength of 4140 steel?
There are several important mechanical properties of AISI 4140, including: Tensile Strength: AISI 4140 steel typically has a target ultimate tensile strength of around 95,000 psi.
What is the tensil strength of 4140 steel?
Tensile Strength: AISI 4140 steel typically has a target ultimate tensile strength of around 95,000 psi.