AAR specific for Loco Axle

AAR specific for Locomotive axle are in the SAE or AISI number.
Who has a good source of contacts with AAR or SAE or AISI number.

Stan Paulsen

I got from AAR Grade F :Carbon,percentage Min. 0.45 Max 0.59
Manganese,percentage Min. 0.60 Max. 0.90
Phoshorus,percentage --- --- Max. 0.045
Sulphur,percentage --- --- Max. 0.050

Grade G and H Manganese,percentage Min. 0.60 Max. 0.90
Phosphorus,percentage --- --- Max. 0.045
Sulphur,percentage --- --- Max 0.050
Silicon,percentage Min. 0.15 --- ----

On the finish Axle the Grade is stamp 1/4 inch show F and G or H.
AAR Specification M-101 cover Loco and cars 20 page.

Smile

Stan