AISI 4140 QT Hollow Bar

Applications:

AISI 4140 QT Hollow Bar can be made into Shafts, gears and parts subject to mechanical wear.

Specifications:

Outside Diameter: 51-760 mm Wall Thickness: 4-120 mm Length: as you required

Steel Grade Comparison:

EN 10297: 42CrMo4/1.7225

JIS G3441: SCM440TK

ASTM A519: 4140

Chemical Composition(%):

C: 0.38-0.43

Mn: 0.75-1.00

Si: 0.15-0.35

P: 0.040 max

S: 0.040 max

Cr: 0.80-1.10

Mo: 0.15-0.25

Heat treatment: Annealed, Normalized, Stress relieved, Quenched and Tempered.

Third Party inspection acceptable. such as SGS, BV etc.

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