6" x 3" Ductile Steel Wheel Rigid P70 Caster - 5,400 Lbs Capacity 28OR17 350" thick and is zinc

350" thick and is zinc plated

Forged steel wheel casters are the premium of all the steel wheel casters

6" x 7-1/2" Weld on Top Plate / Shim - Part# PTOP-PLATE-80

387" Temp Range: -45˚F to 500˚F

The ductile steel wheel has similar capacities

6" x 3" Ductile Steel Wheel Rigid P70 Caster - 5,400 Lbs Capacity 28OR17 350" thick and is zinc6" x 3" Ductile Steel Wheel Swivel Caster Part # P7006301112 Ductile steel has similar capacities, impact strength, and durability when compared to forged steel wheels, but is more economically priced. Ductile steel is a combination of alloys that give it a much higher weight capacity than standard cast iron wheels, but not quite the capacity and durability of forged steel wheels. While ductile steel is very resilient, it is tough on floors and could