Stainless steel W.-N. 1.4057, DIN X17CrNi16-2, AISI 431
Material No. W.-nr. 1.4057 ( DIN X17CrNi16-2 ) = AISI 431, UNS S43100 = JIS SUS431
Martensitic chromium steel with nickel addition. Heat treatable grade, capable of taking a mirror finish. Resistant to the action of water and steam, weak acids and alkaline solutions, as well as to acids and alkaline
oxidizing effect such as nitric acid. Surface finish for optimum corrosion resistance: fine ground or polished.
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