What's the Difference Between AR-400 and T1 Screen Material?

Posted on: Apr 25, 2016 - 04:00 AM | Recycling Equipment University
Author: Darrin Martin

Screen/grate with biased-cut holes on T-1 material

Screen/grate with biased-cut holes on T-1 material.

AR-400 and T-1 are two different types of steel that are used to make screens/grates for wood waste recycling grinders. Both are hardened materials that have specific, and different, properties that make them appropriate for different wear applications.


AR-400 screens/grates tend to be more brittle but they will wear longer. They are designed to be used for “clean” material that is not likely to have a lot of extraneous metal or rocks in it. It is more common to see smaller screens made out of AR-400 because if they break they are less expensive to replace.

CBI 4800 T-1 screen/grate in the “cradle” with cutter bar and shear pin shown.
CBI 4800 T-1 screen/grate in the “cradle” with cutter bar and shear pin shown.


Screens made from T-1 steel, on the other hand, are usually much larger screens designed to be used for bigger machines like Diamond Z and CBT. T-1 material is more flexible than than AR-400, so it will absorb more impact. That makes it better suited for use with “dirtier” feedstock, such as what you would find on a construction & demolition site or in land clearing.

1” thick T-1 material with 4” diamond hole pattern and rail protection prior to bending/forming. Diamond Z screen/grate.

1” thick T-1 material with 4” diamond hole pattern and rail protection prior to bending/forming. Diamond Z screen/grate.


Both materials have their place in screen/grate fabrication. It is important to work with a fabricating/manufacturing company that not only has experience in making screens/grates but also understands the industry and the desired finished product a client wants to achieve.


To learn more about the wood waste recycling industry and ways to address future “green” market trends contact one of our Equipment Specialists at Apollo Equipment.net. You can visit us on line www.ApolloEquipment.net or call 800-982-2844.