The is a prominent historical specification developed by the German Institute for Standardization ( Deutsches Institut für Normung ). It covers the technical delivery conditions for weldable heat-resisting steel forgings and hot-rolled or forged steel bars . Engineers, manufacturers, and quality control professionals frequently search for a DIN 17243 PDF to verify chemical compositions, mechanical properties, and manufacturing compliance for high-temperature pressure equipment.
A chromium-molybdenum alloy for higher heat resistance.
These are non-magnetic and used for the highest temperature ranges (up to 700°C+).
The official publisher of German standards. You can purchase the historical version or the current EN replacement.
51CrV4 (1.8159) according to DIN EN 10089:2014-04. Delivery condition: Quenched and tempered. Tensile strength: 1,200 – 1,400 MPa (depending on wire diameter). Surface: Ground and polished, decarburization max. 0.05 mm.
A carbon steel widely used for valves, flanges, and fittings operating at moderate high temperatures.
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