Value Collection DA1.25X02.0X36 4140 Steel Flat Bar

Product Description

The VALUE COLLECTION DA1.25X02.0X36 is a 4140 pre-hardened steel flat bar used in tooling, fixturing, die-making, and general machining applications. It measures 1.25 inches thick, 2 inches wide, and 36 inches long, and weighs 27.55 pounds. The 4140 alloy designation indicates a chromium-molybdenum steel that delivers high tensile strength, good toughness, and solid wear resistance in the pre-hardened condition. Machinists, tool and die makers, and fabricators use this bar stock as raw material for shafts, dies, fixtures, and structural components that require a balance of hardness and machinability without requiring additional heat treatment before use.

This flat bar is suited for industrial and commercial fabrication environments where 4140 pre-hardened stock is specified. Common applications include manufacturing custom tooling, jigs, fixtures, wear plates, and machine components. The pre-hardened condition makes it ready for machining to final dimensions without a separate hardening step, which reduces lead time in production settings. Metal fabrication shops, maintenance departments, and toolrooms typically keep this size on hand for on-demand part production.

Key Features

• 4140 chromium-molybdenum alloy steel provides high tensile strength and solid impact toughness
• Pre-hardened condition eliminates the need for additional heat treatment before machining
• Flat bar profile at 1.25 inches thick by 2 inches wide suits tooling and fixture stock applications
• 36-inch length allows multiple parts to be cut from a single bar
• Consistent cross-section supports precise layout and machining to tight tolerances

Compatibility

Designed as a general-purpose 4140 pre-hardened steel flat bar suitable for tooling, die, fixture, and structural machining applications where 4140 alloy bar stock is specified.

Installation Notes

Cutting and machining of pre-hardened 4140 steel should be performed by qualified machinists or fabricators using appropriate carbide tooling. Secure the bar firmly in a vise or fixture before sawing or milling to prevent movement. Grinding or machining operations may produce metal chips and heat — use proper eye protection, gloves, and coolant where applicable. Verify all dimensions against engineering drawings before cutting, as cut material cannot be returned to original length.