I heard the 42crmo4(thicknesss40-50mm) were sold out by the mask factory,it’s really shock me.

I heard the 42crmo4(thicknesss40-50mm) were sold out by the mask factory,it’s really shock me!

As the chinese epidemic situation,our company had shut down for a month,that could make sure all workers are safe and clean. Today is our first working day after the coronavirus epidemic,I ask the 42crmo4 stock list from warehouse,and they told me that thicknesss40-50mm is out,as 42crmo4 was sold out by the mask factory,I was so curious why mask factory,I don’t think it need steel to make mask.and then they told me is not for making mask,it’s for machine which produce mask.and it’s push by government everyday. And our cutting factory is very busy with it.as our factory is the biggest 42crmo4 stoickist in south of China. I think it’s so meaningful,it not only prove our qulity is good for government project,but also we can do some good thing for our country. Now,we prefer to send all 42crmo4 to mask factory,we hope the it’s very helpful for our country.

If you want to know more about 42CrMo4，please check as below or contact me directly.

Equivalent Of 42CrMo4 alloy Structure Steel

Heat Treatment

42CrMo4 alloy steel is heated at 845°C (1550°F) followed by quenching in oil. Before hardening, it can be normalized by heating at 913°C (1675°F) for a long period of time followed by air cooling.

Forging

Forging of this steel should be carried out between 2200 and 1650 º F (1200 and 900 º C). The lower the finishing temperature from forging, the finer will be the grain size. This alloy should ideally not be forged below 1650 º F (900 º C) and should be slow cooled after forging.

Hot Working

42CrMo4 alloy steel can be hot worked at 816 to 1038°C (1500 to 1900°F)

Annealing

42CrMo4 alloy steel is annealed at 872°C (1600°F) followed by slowly cooling in the furnace.

Tempering

42CrMo4 alloy steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. The hardness of the steel can be increased if it has a lower tempering temperature. For example, the tensile strength of 225 ksi cab be achieved by tempering at 316°C (600°F), and tensile strength of 130 ksi can be achieved by tempering at 538°C (1000°F).

Hardening

42CrMo4 alloy steel can be hardened by cold working, or heating and quenching.

Ms Sharon Wan

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Tel: 0086-769-23190193

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Email: Sharon@otaisteel.com