SAE4140 Q+T Induction Hardened Chrome Rod

 SAE4140 Q+T Induction Hardened Chrome Rod usually manufactured from cold rolled or hot rolled carbon steel 4140 round bars, The surface of the electroplated coating of the chrome-plated rod after treatment has no blackening, peeling, no wrinkling, no pinholes, and the surface of the coating is smooth.Induction Hardened produced by using advanced processing techniques usually on steel rods, for surface removal, polishing, induction hardening, followed by hard chrome plating.

4140 hard chrome plated bar is used extensively by the hydraulic and pneumatic industries, and is employed by other industry sectors for a wide range of applications requiring higher strength.


Description Of 4140
4140 Q+T induction hardened chrome rod

Q+T Induction Hardened Chrome Rod

Material: SAE4140 AISI4140 SCM440,42Crmo4 4140

Type: Induction Hardened Chrome Rod/Chrome Plated Bar/Chrome Plated Rod/Nickel-Chrome Plated Rod/Hollow Chrome Bar/Hollow Chrome Rod

Heat Treatment Type: 1) Induction Hardened  2)Q+T(Quenched+Tempered) Induction Hardened

Diameter: Φ 6-1000mm  imperail sizes available

Length: max.20 meters

Salt Spray Test：Passed As Per Request

Chrome layer: min 20/25/30/50 Micron or customized

Straightness: <= 0.5/1000

Roughness: Ra <= 0.4u

Diameter tolerance: ISO f7/f8/f9/h8/h9 or as request

Below is the chemical composition & mechanical properties of the 4140 Q+T induction hardened chrome rod.

Chemical Composition (Base Material)
 Min. %Max %
Carbon0.360.44
Silicon0.100.40
Manganese0.651.10
Chromium0.751.20
Molybdenum0.150.35
Phosphorous00.04
Sulphur00.04

 

Typical (Base Metal) Mechanical Properties 
Manufacturing ProcessTurned
Tensile Strength Mpa900
Yield Strength Mpa800
Elongation In 50mm %20
Hardness Brinell HB270

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