For economic performance under severe dynamic stresses, parts must be designed for optimum strength. Heavy forgings, such as rotors, shafts and discs. S275JR / 1.0044 Non-alloy quality structural steel - equivalent, chemical composition, properties. Uses: Highly stressed components with large cross sections for aircraft, automotive and mechanical engineering, such as propeller shafts, connecting rods, gear shafts, crankshafts, landing gear components. Bs En 10204 3.1 Chemical Composition - envirolasopa. Can be nitrided at the quenched and tempered state to increase resistance to wear and the fatigue limit. Has average machinability on tool machines. The mill test certificate according to EN. 3.1 or 3.2 MTC means that the plate or heat actually sold has been tested and the plate is accompanied by a Mill Test Certificate (MTC). The actual certificate depends on the label offered but is either 3.1 or 3.2. It can be quenched and tempered at high resistance values and offers hardness consistency and uniformity. Certification of rolled steel plates in Europe is generally in accordance with EN 10204. Quenched and tempered steel with high temperability and toughness thanks to the high chromium content.
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