Premium EN31 Alloy Steel for Tooling Applications
High Carbon Alloy Steel

EN31 is a high carbon, chromium containing alloy steel recognized for its exceptional hardness, wear resistance, and high tensile strength. It is widely used in applications that demand toughness, abrasion resistance, and fatigue strength. Components such as bearings, shafts, gears, and high-wear machine parts are commonly manufactured from EN31 due to its ability to withstand heavy mechanical stress while maintaining durability and performance.

The chemical composition of EN31 includes 1.00–1.10% carbon, 1.40–1.65% chromium, 0.40–0.70% manganese, 0.10–0.35% silicon, and low levels of sulfur and phosphorus. It exhibits tensile strength ranging from 90–130 ksi (620–896 MPa), yield strength between 50–105 ksi (345–724 MPa), and elongation of 8–20% depending on the condition. EN31 also offers Brinell hardness of 180–280, excellent fatigue strength, and maintains machinability in its annealed state, making it ideal for precision engineered components.

MOKSH TUBES & FITTINGS LLP offers a comprehensive range of EN31 products including round bars, flat bars, hex bars, square bars, sheets, plates, coils, strips, seamless and welded pipes, tubes, flanges, fittings, fasteners, forgings, and custom engineered components. These products are manufactured to international standards and can be supplied in annealed, hot finished, cold drawn, or heat treated conditions to meet various industrial specifications.

EN31 steel is extensively used in industries that require high wear resistance, mechanical strength, and fatigue durability. In automotive and engineering sectors, it is used for gears, shafts, spindles, crankshafts, and bearings. Tooling and die making industries rely on it for punches, dies, and cutting tools. Heavy machinery components, agricultural equipment such as ploughshares and tractor parts, and manufacturing industry components like pins, bolts, and rollers also commonly use EN31 steel due to its ability to endure high stress and abrasive conditions.

MOKSH TUBES & FITTINGS LLP is a trusted manufacturer, supplier, exporter, importer, and stockist of EN31 steel products. With expertise in heat treatment, customization, and precise quality control, the company ensures consistent material performance. Customers benefit from rigorous testing, global sourcing of premium raw materials, prompt delivery, competitive pricing, and technical support for selecting the right grades and processes, making MOKSH TUBES & FITTINGS LLP a reliable partner for EN31 steel solutions.