We have 2 band saw blade materials most ideal for ferrous metal cutting, they are:
Bi-Metal M42 – The workhorses of the metal cutting industry, these blades are a combination of hardened M42 teeth and tool steel in combination with a fatigue resistant backer. Excellent on difficult to machine solids and heavy walled structures. For medium to heavy production machines.
Bi-Metal Matrix – Popular in maintenance and small fabricating shops, the matrix blades are for general purpose cutting of materials with easy to moderate machinability. For small to medium size bandsaws.
Here are some common applications along with appropriate blade selection to help guide you:
Steel cutting on small or portable bandsaw – use 10-14 variable pitch
Steel Tube – use 6-10, 8-12, 10-14 variable pitch
Steel Solid – use 6-10, 5-8, 4-6 variable pitch
Steel Sheet – use 8-12 or 10-14 variable pitch
Aluminum Sheet – use 8 TPI to 10 TPI
Aluminum Pipe – use 6 TPI or 8 TPI
Aluminum Solid – use 6 TPI or coarser depending on thickness