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Surface hardness, induction hardening The chrome layer hardness is 850 HV0.1. Cromax 42CrMo4 can be supplied in an induction-hardened execution. In such a case, the hardness immediately beneath the chrome layer is 55 HRC min., and the depth of hardening is between 1.0 and 3.0 mm depending on dimension.
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42CrMo4 ( 1.7225 ) Weldability: Bad weldability due to the high crack danger. Hardenability: Medium-good hardenability, suitable for hot purposes till a temperature of 500 C. It can be hardened in oil.
SURFACE HARDNESS, INDUCTION HARDENING: The chrome layer hardness is 850 HV0.1. Cromax 42CrMo4 can be supplied in an induction-hardened execution. In such a case, the hardness immediately beneath the chrome layer is 55 HRC min., and the depth of hardening is between 1.0 and 3.0 mm depending on dimension.
AISI 4140 Steel Bar | 1.7225 | 42CrMo4 | SCM440. AISI SAE 4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components, like axles, shafts, bolts, gears and other applications. Similar to alloy grade AISI 4130 chrome moly alloy steel but with a slightly higher carbon content.
11 rows · Hardness level obtained: Tempering: Quenched: C40 : 830/860°C: Hold at 210 to 230°C in …
|MATERIAL||CARBURIZING||HARDENING TEMPE…||QUENCHING METHOD|
|C40||-||830/860°C||Hold at 210 to 230°C in an oil bath for 1h/25 …|
|C55||-||810/840°C||Hold at 210 to 230°C in an oil bath for 1h/25 …|
|42CrMo4||-||860/890°C||Hold at 210 to 230°C in an oil bath for 1h/25 …|
|34CrNiMo6||-||820/850°C||Hold at 180à200°C in an oil bath for 1h/25 mm|
42CrMo4 This page provides 42CrMo4 datasheet, 42CrMo4 mechanical properties, chemical element 42CrMo4, technical specifications of 42CrMo4 steel material …
DIN 1.7225 / 42CrMo4 Steel is a common Chromium-Molybdenum alloy steel that usually used after quenched and tempered. DIN 1.7225 has better performance than 1.7220 steel due to the carbon and chromium content is higher. 42CrMo4 steel has higher strength and hardenability. This material also has high fatigue strength and good low-temperature...
Ball hardness testing: 10% of forged parts per batch (minimum 2), for the same melt and series of heat treatment operations. The impact mark will be on the upper surface (delivery direction). The three impact tests shall be performed at a temperature of +20°C and - 40°C in the radial and tangential directions.
furnace to 480 ºC , then cool in air. After annealing, the hardness 92 HBS Max. AISI 4140 Steel Hardening & Quenching 4140 Steel is usually used at 18-22 HRc, If needs, AISI 4140 alloy steel can be hardened or Quenching by cold work. Quenching medium: oil Tempering Of AISI 4140 Alloy Steel