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 BS EN 42crmo4 Alloy Steel is a common chromium-molybdenum steel that usually used after quenchedand tempered, with high intensity, high hardenability. BS EN 42CrMo4round steel has better performance than 34CrMo4 steel due to the carbonand chromium content is higher. 42CrMo4 alloy steel has higher strength and hardenability. The 42CrMo4 alloy material alsohas high fatigue strength and good low-temperature impact toughness. The temper brittleness is not obvious. Although 42CrMo4 steel is mo ...


Length: 3-5.8mm or customization
Surface: black, peeled, or rough chiseled
Heat treatment: air cooling, normalized, annealed, Q&T
Melting process: EAF + LF + V.D.

BS EN 42CrMo4 alloy steel
is a common chromium-molybdenum steel that is commonly used after quenched
and tempering, with high intensity, high hardenability. BS EN 42CrMo4
round steel has better performance than 34CrMo4 steel due to carbon
chromium content and higher. 42CrMo4 Steel Alloy


has a higher strength and hardenability. 42CrMo4 alloy material also
has high fatigue strength and good toughness at low temperatures.


The holiday fragility is not obvious.
Although 42CrMo4 became more expensive than 41Cr4 steel, more
preferred in terms of material properties. EN 42CrMo4 alloy
engineering steel materials have found wide application in automotive drive
elements. OTAI Steel can provide you with 42CrMo4 advantageous quality
alloy steel materials with a wide range.

1.42CrMo4 alloy steel supply range

42CrMo4 Round Bar Sizes: 80mm - 1200mm
Steel 42CrMo4 Flat and plate: 10mm-1500mm thickness x 200-3000mm width
Other steel shapes and sizes according to your requirements.

Surface condition: black, rough machined, peeled, turned and other requirements as per your requirements.

5. Heat treatment of 42CrMo4 steels
Annealing 42CrMo4 steels

Heat 42CrMo4 steel forged steel slowly and carefully 800-850 C;

Cool slowly in an oven to a temperature of 480 ;
Complete annealing of steel in air.
Quenching and tempering (Q + T),
Heat 42CrMo4 steel slowly up to 880 C;
Soak at this temperature, then simmer in oil;
Temper as soon as 42CrMo4 steel to room temperature (20 C);
Heat evenly to a suitable temperature of 560 C;
The 42CrMo4 material is withdrawn from the oven and cooled in air.

6. Forging 42CrMo4 alloy steel

Heat 42CrMo4 structural steel evenly and slowly;
Raising the forging temperature to 1150-1200 C.
Always keep the forging temperature above at least 850 C

7.Weldability

Engineering


42CrMo4 steel has limited weldability. Preheating up to 200-300
highly recommended; the upper limit must not be exceeded due to
risk for deterioration of the chrome layer.

Alloy 42CrMo4 steel
can be friction welding. However, precautions are needed to
to limit the formation of undesirable microstructures in the welding zone.
8.Application of 42CrMo4 alloy steels


 

   AISI 8620 1,6523 | 21NiCrMo2 | SNCM220          20NiCrMo13-4 1.6660     ASTM 52100 | 1,3505 | 100Cr6 | SUJ2 | EN31       33NiCrMoV14-5 1.6956     

   AISI 4340 | 36CrNiMo4 | 1,6511 | EN24 | 817M40 | SNCM439      EN DIN 34CrNiMo6 | 1,6582 | 4337 Engineering Steel    BS EN 42CrMo4 | 1,7225 Alloy Steel  

   1,2379 | X153CrMo12 | SKD11      UNS S31254 1.4547 F44 Super Austenitic Stainless Steel      DIN 1.6657 14NiCrMo13-4 16NCD13 832M13 EN36C

   DIN1.6587 X4317 18CrNiMo7-6 17CrNiMo6 18NCD       DIN 1.6566 17NiCrMo6-4 18NiCrMo5 817M17 SAE4317       DIN 1.6657 14NiCrMo13-4 16NCD13 832M13 EN36C