Gost 12h2n4a bar 2-120mm round bar profile round steel bar 0.5-2 meters (length : 1.5 Meter, size : 120mm)

We offer 12h2n4a chromium-nickel alloy steel in thicknesses ranging from 2mm to 120mm, with a length tolerance of +/-2mm. If you need a different steel grade or specific dimensions, please contact our sales team—we are happy to provide a custom quote based on our stock or delivery program.This product is available on request, with a production time of approximately one month and preparation for shipping within 2–3 business days. Delivery times depend on the parcel service; please refer to our FAQ for more information.12h2n4a steel features 0.12% carbon, 2% chromium, and 4% nickel, resulting in a material of very high quality. It is known for its excellent toughness, high core strength, outstanding wear resistance, and good surface hardness. Due to its nickel content, the steel has limited machinability and weldability, requiring suitable preheating and post-annealing for welding.This alloy is ideal for manufacturing highly stressed components subjected to impact, such as gears, transmission shafts, pistons, connecting rods, pinion shafts, cardan shafts, bevel gears, and ring gears. It performs reliably in temperatures as low as -120°C and offers good quenching properties but is prone to hydrogen embrittlement.Key properties of 12h2n4a include: - Very good toughness - High core strength - Excellent wear resistance - Good surface hardness - Poor machinability - Limited weldability - Good quenching abilityIf you are seeking a trustworthy supplier of 12h2n4a steel, Evek GmbH offers a wide range of GOST steels at competitive prices and provides expert advice for all your questions.**Chemical composition (in %):** - C: 0.09–0.15 - Si: 0.17–0.37 - Cr: 1.25–1.65 - Mn: 0.3–0.6 - Ni: 3.25–3.65 - S: 0.025 - P: 0.025 - Cu: 0.3