440 C / 1.4125

It is one of the stainless steel grades with the highest degree of hardness due to its high carbon content. In addition to high hardness, its toughness and corrosion resistance are also very high. It can reach hardness values of 61 HRc by heat treatment. Good corrosion resistance in hardened and tempered condition.

1.4125 is popularly known as AISI 440C.

Used in bearings with high corrosion resistance, Corrosive environments requiring high wear resistance, Cutting tools and blades.

AFNOR Z100CD17
UNI X102CrMo17KU
UNI X105CMo17
AISI 440F / AISI 440C
AMS 5618 / AMS 5630
UNS S44004
JIS SUS440F / JIS SUS440C

Chemical Composition

C
%		Sİ
%		Mn
%		Cr
%		Mo
%
0,95-1,20≤ 1,00≤ 1,0016,0-18,00,40-0,80