Technical information on tool bronze

AMPCO Recommendations for use Cu Al Fe Ni Mn Cr Si Others Breaking tenacity 0.2 limit N/mm2 Hardness HB30 Strain Density Yield strength under compression Conductivity Thermal conductivity
18 Outstanding sliding and fatigue properties and excellent wear resistance. Good sliding properties against stainless steel rest 10,5 3,5         <0,5 720 360 190 14 7,45 240    
21 Great hardness and low strain. For tracks and bending studs in deepdrawing of the slab. rest 12,8 4,5         <2,5 760 410 280 1 7,21 340    
22 Harder than AMPCO 21. For deep drawing of stainless steel, cores, for ejector pins and rollers for tube manufacturing. rest 13,8 5,0         <2,5 720 430 330 0,5 7,06 650    
25 Bending studs and pressure pistons in the deep drawing of stainless steel, rollers and mandrel.                     >340 0,2 6,93 710    
45 For big mechanical loads in deep drawing conditions. rest 10,0 3,5 5,0 1,0     <0,5 810 520 230 10 7,53 270    
M-4 Hyvät mekaaniset ominaisuudet korkeissa läämpötiloissa. loput 11,0 4,8 5,1 1,0     <0,5 990 790 290 8 7,45 730    
AMPCOLOY Recommendations for use Cu Al Fe Ni Mn Cr Si Others Breaking tenacity 0.2 limit N/mm2 Hardness HB30 Strain Density Yield strength under compression Conductivity Thermal conductivity
945 Be free. Option for alloy CuBe2. For seam-, spot- and project welding of stainless steel. rest           2,8   890 550 290 6 8,65 690 16 140
940 RWMA 3. For spot welding electrodes for stainless steel. rest         0,4 0,7   660 >510 210 9-13 8,71 630 >26 190
972 RMWA 2. The holders of the electrodes, for continuous casting of steel and aluminium for dies. rest         1,1   <0,5 448-496 480 150 13 8,87   45 310