.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
General Characteristics
C91700 is a medium strength casting alloy. It has a good combination of strength, ductility and resistance to corrosion and wear. Its typical tensile strength is 60 ksi in the as-cast condition. Typical applications include gears and worm wheels.
|
Typical chemical composition |
|
Weight % |
Cu(1) |
Al |
Sb |
Fe |
Pb |
Ni+Co |
P(2) |
Si |
S |
Sn |
Zn |
|
minimum |
84.00 |
-- |
-- |
-- |
-- |
1.20 |
-- |
-- |
-- |
11.30 |
-- |
|
maximum |
87.00 |
.005 |
.20 |
.20 |
.25 |
2.00 |
.30 |
.005 |
.05 |
12.50 |
0.25 |
(1) In determining Cu-min., Cu may be calculated as Cu + Ni.
(2) For continuous castings, P shall be 1.5% max.
Note: Cu + sum of named elements, 99.4% min.
|
Physical properties |
|
Characteristics |
|
English |
Metric |
|
Nominal density |
20°C / 68°F |
0.316 lbs/in3 |
8.75 g/cm3 |
|
Melting range |
Liquidus |
1859 °F |
1015 °C |
|
Solidus |
1563 °F |
851 °C |
|
Specific heat |
20°C / 68°F |
0.09 BTU/lb - °F |
377 J/KG- °K |
|
Coefficient of thermal expansion |
68°F – 392°F
20°C – 200°C |
9.0 micro in/in- °F |
16.2 micro m/m- °K |
|
Thermal conductivity |
20°C / 68°F |
40.8 BTU/ft- hr - °F |
70.6 W/m - °K |
|
Electrical resistivity |
20°C / 68°F |
172.4 nΩ ∙ m |
|
Electrical conductivity |
Volumetric:
20°C / 68°F |
10% IACS |
|
Mechanical properties |
|
Temper |
Tensile |
Hardness |
|
|
Ultimate |
Yield |
Elongation in 50 mm (2 in.) |
Rockwell B |
|
|
KSI |
MPa |
KSI |
MPa |
% |
|
|
As Sand cast -
M01 |
303 |
44 |
152 |
22 |
16 |
52 |
|
As Centrifugal cast – M02 |
414 |
60 |
221 |
32 |
16 |
67 |
|
As Permanent Mold cast – M05 |
414 |
60 |
221 |
32 |
16 |
67 |
|
Specifications |
|
Centrifugal / Sand Castings:
· ASTM – B427 |
Ingot:
· ASTM – B30 |
