Value Collection DA.5X04.0X36 4140 Steel Flat Bar

Product Description

The VALUE COLLECTION DA.5X04.0X36 is a 4140 alloy steel flat bar supplied in a pre-hardened condition, ready for machining, fabrication, or tooling applications without additional heat treatment. Measuring 0.5 inches thick, 4 inches wide, and 36 inches long, this bar ships as a single piece and weighs approximately 22.54 pounds. The 4140 designation indicates a chromium-molybdenum alloy steel known for its high tensile strength, toughness, and wear resistance in the pre-hardened state. It is well-suited for shops and trades requiring a reliable, dimensionally consistent steel stock that can be cut, drilled, or milled to spec.

This flat bar is commonly used in industrial maintenance, custom fabrication, jig and fixture building, die work, and structural repair applications. Its pre-hardened condition makes it a practical choice when working with components that require moderate to high strength without the added step of through-hardening after machining. It is appropriate for both shop floor fabrication environments and field repair scenarios where a precision-ground or saw-cut steel flat bar is needed to spec.

Key Features

• 4140 chromium-molybdenum alloy steel construction for high strength and toughness
• Pre-hardened condition eliminates the need for additional heat treatment before use
• Thickness: 0.5 inches for compatibility with standard flat bar tooling setups
• Width: 4 inches, Length: 36 inches (3 feet) for versatile cut-to-length applications
• Single-piece packaging with a minimum order quantity of 1

Compatibility

Designed as a standard 4140 pre-hardened alloy steel flat bar suitable for general industrial fabrication, tooling, maintenance, and repair applications requiring chromium-molybdenum alloy steel stock in flat bar form.

Installation Notes

Cutting, drilling, and machining of pre-hardened 4140 steel requires carbide-tipped tooling due to its elevated hardness. Secure the bar in a proper vise or fixture before any cutting or drilling operation. Welding pre-hardened 4140 steel typically requires preheating and post-weld heat treatment to avoid cracking — consult applicable fabrication standards before welding. Always use appropriate PPE including eye protection and gloves when cutting or machining steel bar stock.