4140 Alloy Steel Flat is a cold drawn annealed steel of relatively high hardenability with its chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. 4140 Alloy Steel Flat responds well to heat-treatment and is relatively easy to machine in the annealed condition. 4140 Alloy Steel Flat has good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures.

• Specifications: ASTM A331, A108-13, AISI 4140
• AKA: CDA Alloy Flat, 4140 Rectangle Bar
• Applications: brake dies, fixtures, jigs, blades, tool holders, etc.
• Workability: Moderate to Weld, Cut and Machine.
• Mechanical Properties: Brinell = 197-223, Tensile = 95ksi
• How is it Measured? Thickness (A) X Width (B) X Length
• Available Stock Sizes: 2ft, 4ft, 6ft, 8ft, 12ft or Cut to Size

Stock lengths may vary +/- 1/4"
Please call if you need specific lengths.

AISI SAE 4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components, like axles, shafts, bolts, gears and other applications. Similar to alloy grade AISI 4130 chrome moly alloy steel but with a slightly higher carbon content. The higher carbon content of AISI 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steels, however it does have inferior weldability characteristics.

Shandong Heyixin Metal Material Co., Ltd. is located in Liaocheng City, Shandong Province, the beautiful Jiangbei Water City, adjacent to Tianjin and Qingdao, with convenient transportation. It has been focusing on the manufacture and distribution of metal products for many years. Our main products are steel bars, pipes, coils, seamless steel pipes, steel beams, aluminum coils, color-coated steel coils, galvanized coils, galvanized steel pipes, steel plates and other related metal products. The products are rich in variety, high quality, reasonable price and fashionable design, which are widely used in machinery manufacturing, metallurgy and minerals, building materials, ships, aircraft, automobiles and other industries. Our products are widely recognized and trusted by users to meet changing economic and social needs. Our products have been exported to West and East Africa, Middle East, South America, Southeast Asia, Europe, America and other places. Provide steel to 258 buyers in 39 countries and regions. Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

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