Steel castings for pressure purposes DIN EN 10213-4

Material- number Code Properties and information on application
1.4309 GX2CrNi19-11 Used for parts in foodstuff and beverage industry installations and in the chemical industry (non-chloride-exposed); resistant in the as-delivered condition to intercrystalline corrosion; material 1.4308 has limited resistance to intercrystalline corrosion after welding without postheat treatment; materials 1.4309 and 1.4308 are mirror-finish polishable and have good resistance to nitric acid.
1.4308 GX5CrNi19-10
1.4552 GX5CrNiNb19-11
1.4409 GX2CrNiMo19-11-2 Used in the foodstuff, dairy, brewing, chemical, pulp and paper industries; resistant in the as-delivered condition to intercrystalline corrosion; material 1.4408 has limited resistance to intercrystalline corrosion after welding without postheat treatment.
1.4408 GX5CrNiMo19-11-2
1.4581 GX5CrNiMoNb19-11-2
1.4458 GX2NiCrMo28-20 Used in the chemical, pulp and fertiliser industries; elevated resistance to stress corrosion cracking; suitable for parts used in the urea industry
1.4527 GS4NiCrCuMo30-20-4 As above, good resistance to sulphuric acid in certain concentrations
1.4584 GX2NiCrMoCu 25-20-5 Materials offering high corrosion resistance in oxydising and reducing media as well as phosphoric acid installations; seawater- and pitting-resistant; elevated resistance to stress corrosion cracking. The materials are known by the name of “Alloy 20”
1.4587 GX2NiCrMoCuN29-25-5
1.4588 GX2NiCrMoCuN25-20-6 High-strength, corrosion-resistant material for use in crude oil, natural gas, offshore and chemical installations; high pitting resistance; similar in type to rolled material 1.4529
1.4557 GX2CrNiMoCuN20-18-6 High-strength, corrosion-resistant material for use in crude oil, natural gas, offshore and chemical installations; high pitting resistance; similar in type to rolled material AVESTA 2545MO R
1.4569 GX2CrNiMnMoNNb21-15-4-3 Fully austenitic castings with elevated yield strength; seawater-resistant, antimagnetic; for use in (naval) shipbuilding
1.4446 GX2CrNiMoN17-13-4 High pitting resistance; for use in seawater, chemical and fertiliser installations
1.4305 GX8CrNiS18-9 Used for rotating parts in paint, soap, paper and textile industry equipment; improved casting machinability on automatic machining centres
1.4565 GX2CrNiMnMoNbN25-18-5-4 High-strength, corrosion-resistant steel castings; preferably for applications involving seawater, crude oil and natural gas production; high pitting resistance; used for valves and pumps
1.4465 GX2CrNiMoN25-25 For use in pump and apparatus manufacture and in the viscose and pulp industries
1.4536 GX2CrNiMoCuN25-20 Used for parts requiring good resistance, particularly to aggressive media containing H2S and H2So4