Seamless Rolled Rings — Manufacturer & Supplier

Rings to 2500 mm outside diameter, pierced and rolled so the grain runs circumferentially.

A rolled ring starts as an upset pancake, is pierced to a doughnut and then rolled between a driven roll and a mandrel until the diameter grows and the wall comes down. The grain ends up running around the circumference, which is exactly the direction a bearing race, gear rim or tower flange is loaded. We roll rings from 200 mm to 2500 mm outside diameter in carbon, alloy, stainless, duplex and nickel alloy grades, with rectangular or contoured profiles.

Manufactured under the Stancor Forgings brand by Stancor Forgings.

Specifications

outside_diameter
200 mm to 2500 mm
height
40 mm to 800 mm
wall
30 mm to 400 mm
profile
Rectangular or contoured to drawing
certification
EN 10204 3.1 or 3.2 certificate with chemistry, mechanical and NDT results, traceable to the heat
testing
Ultrasonic testing to ASTM A388, magnetic particle or dye penetrant, PMI and hardness survey
packing
Seaworthy wooden crates or steel pallets, machined faces rust-preventive coated

Applicable Standards & Specifications