Alloy Steel Rectangle Bar 4140 Heat Treat

Our 4140 heat-treated alloy steel rectangle bar is a versatile medium-carbon steel that provides excellent toughness and fatigue strength. These flat bars are commonly used for manufacturing gears, slides, and mechanical blocks that endure high stress. It is a foundational material for the industrial machinery and oil and gas industries due to its rugged reliability. Because it arrives pre-hardened, this material saves you the time and expense of post-fabrication heat treatment. Find the 4140 heat-treated rectangle bar you need at Onlinemetals.com for your most demanding industrial applications.