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...World Wide Distributor of Beryllium-Free Copper Alloys...
Manufacturer of Standard & Custom Components
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Material Application Recommendations &
Property Comparisons of Common Mold Materials
| MoldStar®150 | Cu 96.4 Ni 2.5 Si 0.7 Cr 0.4 |
Very high thermal conductivity, resistance to corrosion and wear, moderate hardness | Mold cores, cavities, sprue bushings, hot runner systems, core pins, ejector pins, sleeves, blow pins |
| MoldStar®90 | Cu 90 Ni 7.5 Si 1.3 Cr 1.2 |
High thermal conductivity, High Hardness, resistance to corrosion and wear | Inserts, cores, cavities, hot runner systems, sleeves, core pins, any plastic forming inserts, blow pins, pinch points |
| MoldStar®18 | Cu 85.5 Al 10.5 Fe 3.5 Other 0.5 (max.) |
Good bearing qualities, resistance to wear, abrasion, fatigue, deformation and corrosion | Slides, gibs, wear plates, mold locking devices, sleeve bearings, guide pin bushings, guide rails |
| MoldStar®21 | Cu 80.2 Al 12.8 Fe 4.5 Other 2.5 (max.) |
Harder alloy with good bearing qualities, resistance to wear, abrasion, fatigue, deformation and corrosion | Lifter blades, slides, gibs, wear plates, ejector sleeves and bushings, guide pin and leader pin bushings |
| MoldStar®22 | Cu 78.7 Al 13.8 Fe 5.0 Other 2.5 (max.) |
Harder alloy with good bearing qualities, resistance to wear, abrasion, fatigue, deformation and corrosion | Ejector sleeves, lifter blades, thin wall applications, ejector and core pins, guide pin and leader pin bushings, unscrewing mold components |
| MoldStar®97 | Cu 98.5
Cr 1.0 Other 0.5 (max.) |
Extremely high thermal conductivity, resistance to corrosion and wear | Mold inserts, thermal pins, mold cavities, EDM electrodes |
Material Specifications and Comparisons
Click here for more information on Hardness
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Thermal |
Thermal |
Brinell Hardness |
Density |
| MoldStar® 150 | 150 | 2.32 | 210 (94R/B) | .315 |
| MoldStar® 90 | 90 | 1.76 | 292 (30R/C) | .320 |
| MoldStar® 18 | 36 | .97 | 192 (92R/B) | .269 |
| MoldStar® 21 | 25 | .62 | 286 (29R/C) | .260 |
| MoldStar® 22 | 25 | .62 | 308 (32R/C) | .255 |
| MoldStar® 97 | 190 | 3.76 | 143 (77R/B) | .320 |
| Aluminum QC7 | 80 | 2.44 | 167 (500kg) | .101 |
| Beryllium Copper-0.5% (C17510) | 125 | 2.32 | 157-210 (500kg) |
.319 |
| Beryllium Copper-2.0% (C17200) | 60 | 1.16 | 300-380 | .297 |
| Tool Steel P20 | 20 | 0.39 | 265-345 | .284 |
| Tool Steel H13 | 17 | 0.31 | 350-530 | .284 |
| Stainless Steel | 7 | 0.16 | 150-190 | .284 |
Tensile Strength |
Yield Strength |
Compressive Strength |
Coefficient of |
Elongation |
|
| MoldStar® 150 | 100 | 75 | 80 | 9.7 | 13 |
| MoldStar® 90 | 136 | 126 | 108 | 9.5 | 5 |
| MoldStar® 18 | 105 | 52 | 38 | 9.0 | 14 |
| MoldStar® 21 | 110 | 60 | 61 | 9.0 | 1 |
| MoldStar® 22 | 105 | 62 | 74 | 9.0 | 0.5 |
| MoldStar® 97 |
72 |
65 | 57 | 9.5 | 16 |
| Aluminum QC7 | 78 |
74 |
65 |
12.8 |
7 |
| Beryllium Copper-0.5% | 110 |
90 |
90 |
9.8 |
10 |
| Beryllium Copper-2.0% | 175 |
150 |
150 |
9.7 |
7 |
| Tool Steel P20 | 150 |
125 |
125 |
7.1 |
20 |
| Tool Steel H13 | 250 |
200 |
225 |
6.1 |
15 |
| Stainless Steel | 82 |
36 |
80 |
6.5 |
69 |
Click Here for HARDNESS CONVERSION TABLE
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