Formark 4140 Bright Bar — Strong, Precise and Ready to Machine.

BRIGHT BAR, ROUND (4140)

Formark supplies 4140 bright round bar in New Zealand for demanding engineering, machining and heavy-duty mechanical applications. This general-purpose, high-tensile alloy steel offers an excellent combination of strength, machinability and durability, making it well suited to components exposed to repeated load, impact and wear.

Supplied in a quenched and tempered condition, Formark 4140 Bright Bar has a typical tensile strength of 800–950 MPa and is manufactured to an ISO h8 dimensional tolerance for consistent, accurate machining.

Our 4140 round bar is available cut to length with no minimum order quantity, helping reduce material waste and simplify purchasing for both repair work and production requirements. Diameters from 40 mm to 100 mm are stocked in New Zealand for fast nationwide dispatch.

Available in cold-drawn, peeled and polished finishes, Formark 4140 Bright Bar provides a clean, accurate surface for precision engineering and machining.