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About stanless steel

  • Have you also wondered what the difference is between A2, A4 and A5?
    Have you also wondered what the difference is between A2, A4 and A5?
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    Here we will try to clear up the concepts a bit. In everyday speech, stainless steel is referred to as A2 and stainless acid-resistant steel as A4, so A2 stands for stainless and A4 for stainless acid-resistant steel. But unfortunately that does not say everything about what kind of steel we are dealing with. It is also not possible to directly translate into an EN standard*.An A designation can include several types of steel, that designation has a broader meaning. Below is a small table of...
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  • A2 och A4 – vad är det vi pratar om?
    A2 och A4 – vad är det vi pratar om?
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    Vad är skillnaden mellan rostfritt (A2) och rostfritt syrafast (A4)? Vad betyder beteckningarna?A, F och CSkruvar och muttrar brukar delas in i tre olika kategorier; austenitiska (A), ferritiska (F) och martensitiska (C). De kan var och en klassificeras med en siffra mellan 1 och 5 där 5 står för högsta korrosionsskydd och 1 för det lägsta. De vanligaste varianterna är A2 och A4, alltså austenitisk med korrosionsskydd** klass 2 resp 4.50, 70 och 80En annan klassificering som förekomma är...
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  • Duplex – stronger than steel!
    Duplex – stronger than steel!
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    Duplex steel belongs to the group of stainless and acid-resistant steel and it has very high strength. It is comparable to steel of the higher strength classes. There are five duplex groups; from lean to hyper. What gives duplex steel its character is the balance between austenitic and ferritic two-phase structures (ratio 50:50).
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