Grade X39CrMo 17-1
European Standard Steel Grade 1.4122
Corresponding Standard EN 10088-1-2005
Staehle Stainless steels. Part 1:List of stainless steels
Classification Martensitic Stainless Steel
Properties Corrosion Resistance
Density 7.7 g/cm3
X39CrMo 17-1 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.33 - - - - 15.5 - 0.8
Maximum Value 0.45 1 1.5 0.04 0.015 17.5 1 1.3
① Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.
ⓑ For bars, rods, wire, sections, bright products and the relevant semi-finished products, a maximum content of 0.030 % S applies. Particular ranges of sulfur content may provide improvement of particular properties. For machinability a controlled sulfur content of 0.015 % to 0.030 % is recommended and permitted. For weldability, a controlled sulfur content of 0.008 % to 0.030 % is recommended and permitted. For polishability, a controlled sulfur content of 0.015 % max. is recommended.
ⓒ Tighter carbon ranges may be agreed at the time of enquiry and order.
Approximate Comparison Table Martensitic Stainless Steel
International Organization for Standardization European Standard
ISO Numerical Grade EN Numerical Grade
X39CrMo17-1 4122-434-09-I X39CrMo17-1 1.4122

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