Hot rolled hardened gear steel round bar

VANFORGE supply hot-worked alloy, carbon and carbon-boron steels in a variety of compositions and sizes.

Hardenability

The relative ability of a steel to harden under heat treatment becomes apparent in the degree to which the material hardens when quenched at different cooling rates. It is measured quantitatively, usually by noting the extent or depth of hardening of a standard size and shape test specimen in a standardized quench. In the “end-quench” test the “depth of hardening” is the distance along the specimen from the quenched end to a given hardness.

Ordering Information

Orders for material under this specification should include the following information, in proper sequence:

1 Quantity (weight),

2 Name of material (alloy, carbon, or carbon-boron steel),

3 Cross-sectional shape,

4 Size,

5 Length,

6 Grade,

7 End-quenched hardenability (see Section 9),

8 Report of heat analysis, if desired (see Section 7),

9 Special straightness, if required,

10 ASTM designation and date of issue,

11 End use or special requirements, and

12 Leaded steel, when required.

Chemical composition

Grain Size Requirements

1 The steel shall conform to the fine austenitic grain size requirement of Specification A29/A29M.

2 Hardenability values specified in this specification are based on fine-grain steels and are not applicable to coarse-grain material. In case coarse-grain steel is desired, the hardenability

values shall be negotiated between the purchaser and the manufacturer.

End-Quench Hardenability Requirements

1 The end-quench hardenability shall conform to the requirements specified on the purchase order.

2 When agreed upon between the purchaser and manufacturer, special hardenability limits may be ordered and shall be reflected on the purchase order.

Test Methods

1 Grain Size—Test Methods E112.

2 End-Quench Hardenability—Test Method A255.

Product size range
Diameter: 40mm - 150mm
Length: on request

Production Process





Key clients