Value Collection DA.25X06.0X6 4140 Steel Flat Bar

Product Description

The VALUE COLLECTION DA.25X06.0X6 is a 4140 alloy steel flat bar supplied in a pre-hardened condition, ready for use in tooling, fixture, and machine-component applications without additional heat treatment. Measuring 0.25 inches thick, 6 inches wide, and 6 inches long, this bar offers a compact, square-cut blank suitable for machining, grinding, or fitting directly into assemblies. The 4140 specification delivers elevated tensile strength, toughness, and wear resistance compared to mild carbon steel, making it a reliable choice for high-stress mechanical components. Machinists, tool-and-die makers, and maintenance technicians working in industrial and manufacturing environments regularly stock this size for prototype and production work.

This flat bar is suited for industrial, manufacturing, and maintenance-repair-operations (MRO) environments where a hardened alloy steel blank is needed at a manageable size. Typical applications include die plates, wear pads, tooling blocks, support rails, clamp bodies, and custom machine parts. The pre-hardened condition is appropriate for applications that require material hardness straight from the distributor, eliminating the need for an in-house heat-treat step before use.

Key Features

• 4140 alloy steel specification for high tensile strength and impact toughness
• Pre-hardened condition eliminates the need for additional heat treatment before machining or fitting
• 0.25 inch thickness in a 6 inch by 6 inch format provides a square blank ready for layout and machining
• Compact single-piece quantity suits prototype, repair, and small-batch production work
• UNSPSC Code 30263600 for streamlined procurement cataloging

Compatibility

Designed as a general-purpose 4140 pre-hardened alloy steel flat bar blank for use in tooling, fixture building, and mechanical component fabrication across industrial and MRO applications.

Installation Notes

Cutting, drilling, or grinding pre-hardened 4140 steel requires carbide-tipped or cobalt tooling rated for hardened alloy steels. Always wear appropriate eye and hand protection when machining or cutting. If welding is required, follow recognized preheat and post-weld heat treatment procedures consistent with AWS guidelines for 4140 alloy steel to reduce the risk of cracking. Secure the workpiece firmly in a vise or fixture before any material removal operation.