Chemical composition in % of the material R12 ( R12, Р12 ) .
0.8 - 0.9
3.1 - 3.6
12 - 13
1.5 - 1.9
Temperature of critical points of the grade R12 ( R12, Р12 ).
Ac1 = 820 , Ac3(Acm) = 850 , Ar1 = 720
Brinell hardness of the material R12 ( R12, Р12 ) (annealing) ,
HB 10 -1= 255 MPa
Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others). Helpfull for specialists in material technology, structural engineer, mechanical engineer, metallurgy and metal trader