Brush Cutter Blade SK5 & Brush Cutter Blade SUS420J2
Stainless 420J2 Brush Cutter (1.8mm x 80mm x300mm)
This brush cutter knife is made with hardened tempered stainless 420j2
This knife is more safety then other steel knife.
This knife is able to use for long time one great advantage of this knife is that it doesn't rust.
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.
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.
Carbon Tool Steel Brush Cutter (SK5 1.8mm x 80mm x300mm)
This brush cutter knife is made by hardened tempered carbon tool steel SK5
There are 3kinds of sawtooth on the both side so that it can improve the performance cutting of weeds.
Surface and Character
2B
The surface brightness and flatness of 2B is better than 2D then theough a special surface treatment to improve its mechanical properties,2B could nearly Satisfy comprehensive uses
BA
Cold rolled, bright annealed and skin-passed, the product have excellent brightness and food reflexivity like mirrorm kitchen apparatus, omament etc.
8k
The product have excellent brightness and prefer reflexivity can be the mirror.
HL
Polished with abrasive belt of trit#150#320 on the NO.4 finish and has continuous streaks, mainly used as buildings omaments elevators, door of building, frontal plate etc.
NO.3
Polished with abrasive belt of git#100#200#,have better brightness with discontinuous coarse stria used as inner and external omaments for building,electrical appliances and kitchen utensils etc.
NO.4
Polished with abrasive belt of grit#150#180,have better brightness with discontinuous coarse stria, but thinner than NO.3, are used as bathtub buildings inner and extemal omaments electrical appliances kitchen utensils and food processing