Why develop 4Cr10Si2 stainless steel?

--- Considering the huge consumption of chromium, in one day the mineral resources would be run out.
Based on the producing technology of 4Cr13 stainless steel, our engineers develop 4Cr10Si2 stainless steel. Element " Silicon " is an essential element of iron pan, which has no harm to human body. 

But it could help improve the strength, hardness and anti corrosion resistance, especially has a better

effect on the high temperature oxidation resistance.

How to decrease the content of chromium but add more silicon?
The effect of 1% Silicon is same as 1.5% chromium, so we add about 2.5% silicon.
And the experiment shows it works very well.

Designations
GB 4Cr10Si2
* Nearest standards
   GB 4Cr10Si2Mo
   4Cr9Si2
   4Cr13

W.Nr. EN 1.4034 / DIN X46Cr13

Heat treatment data ( for reference )
Quenching temperature: 950- 1100℃
holding time: 2.5 min/mm

Tempering temperature: 160- 200℃
holding time: 120 minutes, cooled in air or oil

Hardness test
4Cr10Si2 stainless steel obtains 58- 61 HRC after hardened and tempered.

Sharpness test
4Cr10Si2 stainless steel is superior to 4Cr13 / 420HC stainless steel in the time of edge of holding, strength, hardness, wear resistance.

4Cr10Si2 stainless steel can be applied to make daily used knives like kitchen knives, scissors etc.