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AISI / SAE · United States · 6 grades

440A

The designation 440A is carried by 6 different grades. Compare them on the elements that actually differ, then open the one your print means.

Which of the 6 do you want?

This name is carried by several grades. The elements shown are the ones whose values actually differ across the set — the ones that decide the question. Values are the source text verbatim; an em dash means no value on file for that element on that grade, not zero.

GradeMaterial no.CategoryDesignationsC%Cr%Mo%Si%P%S%
X102CrMo171.35431.3Bearing steels150,95-1,2016,0-18,00,40-0,80≤1,000,040,015
X68Cr171.40401.4Others180,60-0,7516,0-18,0≤0,75≤1,000,040,03
X65CrMo141.41091.4Stainless steels320,60-0,7514,0-16,00,40-0,80≤0,700,040,015
X90CrMoV181.41121.4Stainless steels320,85-0,9517,0-19,00,90-1,30≤1,000,040,015
X105CrMo171.41251.4Stainless steels500,95-1,2016,0-18,00,40-0,80≤1,000,040,015
X105CrCoMo18-21.45281.4Stainless steels131,00-1,1016,5-18,51,00-1,50≤1,000,0450,03

Not sure which one your print means?

Search the catalogue by designation, material number or composition — every name on this page is itself a way in.