SAE 4140 or EN 19 Steel is a chromium-molybdenum alloy steel known for its remarkable strength and versatility. SAE 4140 steel alloy material is extensively used in various applications because of its unique combination of toughness, strength, and other mechanical properties.

The chemical composition of alloy 4140 steel includes chromium, molybdenum, manganese, and carbon. This distinct mixture contributes to its high tensile strength, superior hardness, and excellent toughness. The steel’s alloying elements also provide good resistance to corrosion and oxidation.

SAE 4140 alloy steel is known for its high yield strength and density, making it an ideal choice for critical applications in the automotive, aerospace, and oil and gas industries. Its high fatigue strength and resistance to wear and tear make it suitable for manufacturing gears, bolts, and other high-stress components.

Size range of SAE 4140 or EN 19 rounds, Plates, and Squares

• EN 19 round bars are manufactured through the rolling and Forging process.
• EN 19 round bars – rolled diameter 20 mm to 350 mm
• EN 19 round bars – forged diameter 200 mm to 660 mm
• EN 19 round bars length 4000 mm to 6500 mm. It can go up to 9000 mm.
• EN 19 round bars can be customised from the forging process according to the customers’ requirements.
• EN 19 forged plates thickness from 200 mm to 450 mm, width from 500 mm to 2000 mm.
• EN 19 forged square from 200 x 200 mm to 700 x 700 mm (height x width)