1.7225 QT 42CrMo4 Quenched Steel
1.7225 QT 42CrMo4 Quenched Steel
1.7225 QT 42CrMo4 Quenched Steel
1.7225 QT 42CrMo4 Quenched Steel
1.7225 QT 42CrMo4 Quenched Steel

1.7225 QT 42CrMo4 Quenched Steel

Applications: such as large gear, supercharger transmission gear, rear shaft, loaded connecting rod and spring clamp for locomotive pulling |, 42CrMo4 can also be used for drilling pipe joints and fishing tools in deep oil Wells below 2000m.

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Product Introduction

1.7225 QT 42CrMo4 Quenched Steel：

42CrMo4 steel is a low alloy steel containing chromium, molybdenum, and manganese. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. Not many grades can match the versatility and usefulness.

Chemical Composition Limits

C	Cr	Mn	Si	Mo	S	P
0.38-.43%	0.80-1.10%	0.75-1.0%	0.15-0.30%	0.15-0.25%	0-0.040%	0-0.035%

Applications

This alloy finds many applications as forgings for the aerospace and oil and gas industries, along with myriad uses in the
automotive, agricultural and defense industries, Typical uses are forged gears and shafts, spindles, fixtures, jigs and collars.

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 it at 913°C (1675°F) for a long period of time, followed by air cooling.

Forging

42CrMo4 alloy steel is forged at 926 to 1205°C (1700 to 2200°F)

Hot Working

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

Cold Working

42CrMo4 alloy steel can be cold worked using conventional methods in the annealed condition.

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, a tensile strength of 225 ksi can 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).