Premium EN19 Hardened Alloy Steel
High Strength Alloy Steel

EN19, also referred to as AISI 4140 or 42CrMo4, is a high-tensile chromium-molybdenum alloy steel widely recognized for its excellent combination of strength, toughness, and wear resistance. The presence of chromium provides enhanced hardenability and corrosion resistance, while molybdenum improves fatigue strength and toughness. These properties make EN19 suitable for heavy-duty engineering and mechanical applications where high performance under stress is required.

The chemical composition of EN19 includes 0.36–0.44% carbon, 0.90–1.50% chromium, 0.15–0.35% molybdenum, 0.50–0.80% manganese, 0.10–0.35% silicon, and controlled levels of phosphorus and sulfur. It provides tensile strength in the range of 85–130 ksi (586–896 MPa) depending on condition, with yield strength between 50–110 ksi (345–758 MPa). EN19 also offers elongation of 12–25%, hardness between 150–270 Brinell, and good machinability in normalized or quenched and tempered conditions, making it an excellent choice for precision-engineered parts.

MOKSH TUBES & FITTINGS LLP supplies a comprehensive range of EN19 steel products including round bars, flat bars, hex bars, square bars, hollow bars, forgings, shafts, sheets, plates, coils, strips, seamless and welded pipes, tubes, flanges, pipe fittings, fasteners, and custom-fabricated components. All products are manufactured to international standards and can be supplied in annealed, hot rolled, cold drawn, or quenched and tempered conditions with precision machining and heat treatment options.

EN19 steel is extensively used across automotive, oil and gas, power generation, heavy engineering, construction, defense, and aerospace sectors. In the automotive industry, it is used for axles, crankshafts, gear shafts, and drive shafts, while in oil and gas it is used for drill collars, hydraulic tools, and blowout preventers. In power generation and heavy machinery, EN19 is used for rotor shafts, press tools, coupling rods, rollers, and die blocks. Its toughness also makes it suitable for aerospace landing gear components, structural brackets, and hydraulic cylinders.

MOKSH TUBES & FITTINGS LLP is a trusted manufacturer, supplier, stockist, and exporter of EN19 steel products, offering precision processing, CNC machining, cutting, heat treatment, and custom-tailored solutions to meet exact client requirements. The company sources certified raw materials from reputed mills and ensures strict quality control with ISO-certified processes and third party inspections. With ready stock availability, fast global shipping, and technical expertise, MOKSH TUBES & FITTINGS LLP is a reliable partner for industries requiring high-performance EN19 steel solutions.