ToughMet® is Brush Wellman’s
solution to your severe service material problems. By applying our EquaCast®
process, tailored alloying additions and spinodal hardening technology,
we have engineered ToughMet® to provide attributes beyond those typically
found in a high-strength copper alloy.
- Exceptional resistance
to corrosion and cavitation
- Outstanding lubricity
and durability in demanding applications
- Highly uniform composition
in all product forms
- Uniform microstructure in
a variety of wrought shapes and sizes
ToughMet® 3 in
the wrought and spinodally hardened (AT) condition exhibits tensile strength
up to 140 ksi and hardness up to HRc 34 in a Copper-15% Nickel-8%Tin alloy
with excellent machinability.
Mechanical
Properties |
Temper |
Outside
Diameter |
Yield
Strength
0.2% offset
(ksi) |
Ultimate
Tensile
Strength
(ksi) |
Elongation
(%) |
Hardness
(HRC) |
| T3
AT120 |
<
4” |
120 |
135 |
7 |
32 |
| T3
AT120 |
>4” |
120 |
135 |
4 |
32 |
| T3
AT110 |
<
4” |
110 |
125 |
10 |
30 |
| T3
AT110 |
>4” |
110 |
125 |
6 |
30 |
| T3
AT90 |
<
4” |
90 |
110 |
15 |
260
HBN* |
| T3
AT90 |
>4” |
90 |
110 |
12 |
260
HBN* |
|
Typical
minimum values. Consult your Brush Wellman representative to
review your application requirements.
* Hardness values for T3 AT90 are measured and certified in Brinell
(3000kg, 10mm ball). |
|
|
Physical
Properties |
Availability |
| Young’s
Modulus |
18.5
x 106 psi |
| Poisson’s
Ratio |
0.33 |
| Electrical
Conductivity |
9%
IACS |
| Thermal
Conductivity |
22
Btu/ft/hr/°F |
| CTE
(70 – 215 °F) |
8.9
x 10-6/°F |
| Density
|
0.323
lb/in3 |
| Fatigue
Limit (107) |
60
ksi (R= -1)* |
| Magnetic
Permeability |
<
1.001 |
|
*Fatigue
at 106 cycles, 105ksi YS. |
|
Our current
capabilities are focused in rod and tube standard forms:
Rod:
1 - 9 inch diameter
Tube |
OD |
Min.
Wall |
Min.ID |
15/8
" - 4" |
¼" |
1" |
>4"
- 6½" |
¾" |
1"
– 3”* |
|
| Lengths
to 20 feet
Rotary straightened
mill finishes available.
Tolerances per ASTM B249.
|
|
