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N116 W18515 Morse Dr.
Germantown, WI 53022
Phone: (262) 255-6662 or
1-800-272-3031

Fax: (262) 255-3655
 

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Performance Alloys®

 

 

...World Wide Distributor of Beryllium-Free Copper Alloys...
    Manufacturer of Standard & Custom Components

mold making components, molders, alloys

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mold making components, molders, alloys

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

 

Thermal 
Conductivity at 680 F
Btu/(ft•hr•°F)

Thermal 
Diffusivity
at 680 F
ft2/hr

Brinell Hardness
3,000 kg

Density
lbs/cu.in.

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
ksi

Yield Strength
ksi

Compressive Strength
ksi

Coefficient of 
Expansion in/in/
0 F x106

Elongation
% in 2"

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


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SITE INDEX


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Disclaimer

While the information contained is deemed reliable, no warranties are expressed or implied. For specific information regarding an application please call 1-800-272-3031 or e-mail us at sales@moldstar.com


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