1.7225 +QT - AT A GLANCE
What kind of steel is the 1.7225 +QT?
As a low alloyed steel the 1.7225 +QT (here in its tempered condition) relys on the alloyed chromium, molybdenum and manganese to elevate its strength and hardenability, yet it has inadequate weldability characteristics.
While the chromium content in this heat treatable steel provides through-hardenability, the added molybdenum provides even hardness and strength.
The addition of manganese lends this steel an elevated strength and hardenability. 1.7225 +QT (also known as the 42CrMo4 +QT) can be used for both high and low temperature applications and with the relevant heat treatment can be used in sour gas environments.
Properties
As a a low-alloy chromium-molybdenum steel the 1.7225 +QT, also know as the 42CrMo4 +QT, is characterised by its high strength, good toughness and hardenability. It finds its uses in mechanical engineering, toolmaking and many industries due to its good properties.
- Excellent wear resistance
- Excellent load-bearing capacity
- Good machinability
- High strength
- High toughness
- Nitridable
- Erodible
- Difficult to weld
Applications
For the 1.7225 +QT application can include:
- Mandriles
- Flanges
- Collets
- Bending dies
- Crankshafts
- Clutch parts
- Forming rolls
- Short run stamping dies
- Mechanical engineering
- Machine parts
- Axes
- Knuckles
- Connecting rods
- Crankshafts
- Gear shafts
- Pinions
- Gears
- Bandages
- Base plates
- Assembling parts
