

1.1730 - AT A GLANCE

What kind of steel is the 1.1730
The 1.1730, also known as the C45U, is an unalloyed tool steel with a medium carbon content (0.45%) that can be hardened, but only has a low depth of hardening.
As a versatile, carbon-based cold work steel the 1.1730 has good strength and impact properties, as well as good machinability and reasonable weldability. It is a case-hardening steel with a shallow depth of hardening. With a hard surface and a tough core it is used by many industry sectors for its good mechanical strength and good machinability and mainly used in its as-delivered condition. It can be hardened by quenching and tempering to receive parts with a good combination of strength and wear resistance.

Properties
Steel grade 1.1730 is a versatile cold work tool steel that is used in many industries and in an even greater number of applications. Due to its medium carbon content, this steel grade is easy to machine and weld. It can also be case-hardened, albeit to a shallow depth of hardness.
- Unalloyed tool steel
- Cold work steel
- Hardenable, due to a carbon content of 0.45 %
- Case hardener with low hardening depth
- Can be used in the naturally hard state
- Very good machinability
- Good impact strength
- Suitable for inductive and flame hardening
- Nitriding is not common for this material

Applications
As a medium carbon tool steel this steel grade has got good mechanical properties and can be used to manufacture a great variety of products. As for any other steel grade 1045 depends on the correct treatments to give it its optimum hardness, wear resistance or machinability for the many possible applications.
- Chisels
- Punch holders
- Guide plates
- Backing plates
- Simple bending dies
- Simple structural components
- Top and bottom die casting
- Tongs
- Leather knives
- Forged connecting rods
- Torsion bars
- Fixtures as well as machinery parts
- Automotive components
- Gears
- Shafts
- Rods
As with any other steel grade, the correct heat treatment is essential for the 1.1730 to achiev the optimum hardeness, wear resistance or machinability for the many applications it gets used in.
- Mechanical engineering
- Construction materials
- Jigs
- Base plates
- Moulding frames
- Small dies
- Hand tools
- Simple knives
- Sledges
- Forks
- Hatches
- Axes
- Shears
- Screwdrivers