US steel company Carpenter Technology Corporation claims to have developed a stainless steel which can increase fabricators’ productivity by 25 50%.
The Pennsylvania-based company says its product, known as Project 7000 stainless Type 416, allows for faster speeds, higher feeds, longer tool life, less downtime, better finishes and the ability to machine parts previously too difficult to handle.
Carpenter tested the machinability of the new steel on its own screw machine and CNC lathe. It has also carried out beta trials in customer plants.
One customer claims to have recorded a 50% increase in productivity, the company says.
Nominal analysis of the hardenable, straight-chrome alloy is: 0.15% max. carbon; 1.25% max. manganese; 0.06% max. phosphorus; 0.15% max. sulphur; 1% max. silicon, 12 14% chromium; with the balance being iron.
Type 146 is the latest in a line of Project 7000 stainless alloys which the company has introduced since 1995.