Value Collection DA1.0X02.0X12 4140 Steel Bar 1x2x12

Product Description

The VALUE COLLECTION DA1.0X02.0X12 is a 4140 alloy steel flat bar supplied in a pre-hardened condition, measuring 1 inch thick, 2 inches wide, and 12 inches long. 4140 is a chromium-molybdenum alloy steel known for its high tensile strength, toughness, and good machinability in the pre-hardened state. This bar is suited for fabrication, tooling, jig and fixture work, and general machining applications where dimensional stability and hardness are required from the start. Machinists, tool-and-die makers, and industrial fabricators typically source this material for short-run parts, repairs, and prototype components.

This 12-inch length is a practical stock size for machine shop and light fabrication use. Pre-hardened 4140 flat bar is commonly used in applications such as shafts, pins, keys, brackets, die components, and structural machine parts where through-hardened material is needed without additional heat treatment. The 1-inch by 2-inch cross section provides a solid starting blank for milling, turning, drilling, or grinding to final dimensions. This bar is appropriate for both professional shop environments and skilled trade applications requiring reliable alloy steel stock.

Key Features

• 4140 chromium-molybdenum alloy steel in pre-hardened condition — no additional heat treatment required before use
• Dimensions: 1 inch thick x 2 inches wide x 12 inches long
• Flat bar profile provides a ready-to-machine blank for milling, drilling, and turning operations
• High tensile strength and toughness suitable for tooling, fixtures, and structural machine components
• Single-piece packaging at 7.36 pounds — convenient for bench-quantity ordering

Compatibility

Designed as a general-purpose 4140 pre-hardened alloy steel flat bar stock for machine shop, fabrication, and tooling applications where a 1-inch by 2-inch cross section and 12-inch length meet part requirements.

Installation Notes

Cutting, milling, drilling, and grinding of pre-hardened 4140 steel should be performed by qualified machinists using tooling rated for hardened alloy steel. Carbide or high-speed steel tooling with appropriate feeds and speeds is recommended to avoid work hardening and premature tool wear. Follow standard shop safety practices including eye protection, secure workholding, and proper chip management. Welding pre-hardened 4140 requires pre-heat and post-weld heat treatment procedures consistent with applicable welding codes to prevent cracking.