1.4125 / DIN X105CrMo17 – AISI 440C – UNS S44004
1.4125 / DIN X105CrMo17 / AISI 440C is the highest carbon and chromium member of the stainless steels family. Due to its high carbon content, it provides high mechanical strength values after heat treatment as well as corrosion resistance.
The quality of steel can be understood by comparing its mechanical properties. These properties include tensile strength (19685 kg / cm2), flex resistance (18965 kg / cm2), shear strength (3% at 5 cm), compression, impact resistance (2.8 cm2gm) and hardness 58 RHC (Rockwell) . The presence and quantity of Molybdenum and Vanadium makes the material first class. Molybdenum provides a homogeneous hardness down to the middle of the steel. In addition, it makes the steel resistant to corrosion, higher tensile and compression stresses, higher temperatures, and hardens the steel. On the other hand, as Vanadium accelerates the formation of carbide, it increases tensile strength.
1.4125 / DIN X105CrMo17 / AISI 440C is used in cutting tools where corrosion resistance is required, blades, bearings exposed to high wear and corrosion, pin and pulley systems. Adjusting wedges, molds, valve components are also used in measuring equipment. 1.4125 / DIN X105CrMo17 / AISI 440C stainless is used by many handmade and serial producers.
1.4125 / DIN X105CrMo17 / AISI 440C can be hardened up to 60 HRC after heat treatment. With this feature, it is the member of the stainless steel family that reaches the highest hardness value. In the heat treatment process, it should be kept below 400C in the tempering process after hardening. Otherwise, high carbon and chromium precipitate at the grain boundaries and make the main structure poor in chromium; this significantly lowers the corrosion resistance.
The information given in this data sheet about the condition or availability of the material is not a guarantee for its properties, it only serves as an explanation. The information provided as advice is consistent with our own experience as well as general experience. No guarantee is given for the processing and application results of the products.