Puma Knife Steel

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PUMA blade steels
Designation Carbon Silicon Manganese Phosphorus Sulfur Chrome Vanadium Molybdenum Hardness
Material % C % SI % Mn % P % S % CR % V % Mo HRC
1.4034 / 420* 0,43 - 0,50 < 1,00 < 1,00 < 0,04 <0,015 12,50 - 14,50 - - 52 - 54
1.4109 0,65 - 0,75 < 0,70 < 1,00 < 0,04 <0,015 14,00 - 16,00 - 0,40 - 0,80 55 - 58
1.4110/ 440A* 0,48 - 0,60 < 1,00 < 1,00 < 0,04 <0,015 13,00 - 15,00 < 0,15 0,50 - 0,80 55 - 57
1.4112/ 440B* 0.85 - 0.95 < 1,00 < 1,00 < 0,04 <0,015 17,00 - 19,00 0,07 - 0,12 0,90 - 1,30 55 - 57
1.4116 0,45 - 0,55 < 1,00 < 1,00 < 0,04 <0,015 14,00 - 15,00 0,10 - 0,20 0,50 - 0,80 55 - 57
1.4125/ 440C* 0,90 - 1,25 0,35 0,50 0,018 0,004 16,00 - 18,00 - 0,60 - 0,75 57 - 60
                   
DAMAST
                 
RWL 34 1,05 0,50 0,50 - - 14,00 0,20 4,00 57 - 60
PMC 27 0,60 0,50 0,50 - - 13,50 - -
  
* American designation
C Carbon forms carbides of all other elements by the hardness procedure. The carbides of the different elements are different hardnesses.
CR Chrome causes a certain rust inertia and increases the hardness of the blade.
Mn Manganese binds redundant oxygen and degasses the melt. Hardness does not increase proportionately to higher alloy mixtures.
Mo Molybdenum has the hardest carbide. It increases firmness and corrosion resistance. With higher alloy portions the heatproof quality increases.
P Phosphorus is unwanted. It increases the hardness, however it makes the steel fragile with higher alloy portions.
SI Silicon degasses the melt. With small amounts, tensil strength improves.
S Sulfur is an unwanted element. It is regarded as pollution and is often not mentioned with the analyses.
V Vanadium improves hardness & breaking strength. It contributes to finer grain formation.


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