Steel Plate 4140 Alloy Intelligence
High-strength chromium-molybdenum alloy steel plate for machining and fabrication applications.
Overview
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Live value: $1.5/lb · Range: $2–$4
Overview
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Material Intelligence
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About
Steel Plate 4140 Alloy is a versatile chromium-molybdenum alloy steel known for its excellent strength, toughness, and hardenability. This medium-carbon steel is produced through electric arc furnace melting, followed by hot rolling and heat treatment processes to achieve desired mechanical properties. The 4140 designation indicates 0.40% carbon content with chromium and molybdenum additions for enhanced performance. Primary applications include automotive components, machinery parts, tool manufacturing, and structural elements requiring high strength-to-weight ratios. Key properties include excellent fatigue resistance, good machinability in annealed condition, and superior impact strength. Makers and manufacturers purchase 4140 steel plates for custom fabrication projects, prototype development, and production runs where dimensional stability and consistent mechanical properties are critical. The material can be further heat treated, machined, welded, and surface treated to meet specific application requirements.
FAQ
What is Steel Plate 4140 Alloy primarily used for?+
High-strength chromium-molybdenum alloy steel plate for machining and fabrication applications.
How is pricing tracked?+
Pricing is tracked from live listings and normalized into a $2–$4 intelligence range.
What compliance checks matter most?+
Review active compliance records, safety guidance, and any jurisdiction-specific case or regulation updates.
Graph Notes
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Prices
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Approximate conversions · mid-price · lb