| |
Cupro Nickel |
Spinodal Alloy |
| UNS |
C70250 |
C70260 |
C71500 |
C72500 |
C72900 |
C72900 |
C72900 |
| |
96 Cu 3 Ni 0.6 Si |
97 Cu 2 Sn 0.5 Si |
Cupro Nickel
69.4 Cu 30 Ni .6 Fe |
Copper Nickel Tin
88.2 Cu 9.5 Ni 2.3 Sn |
As Rolled
77 Cu 15 Ni 8 Sn |
After Age Hardening
77 Cu 15 Ni 8 Sn |
Mill Hardening
77 Cu 15 Ni 8 Sn |
| Density (1) |
.318 |
.318 |
.323 |
.321 |
.324 |
.324 |
.324 |
| Mod.of Elast. (2) |
19 |
19 |
22 |
20 |
18.5 |
18.5 |
19.5 |
| Elect.Cond. (3) |
35 |
35 |
4.6 |
11 |
7.8 |
7.8 |
7.8 |
| Thermal Cond. (4) |
85 |
85 |
17 |
31 |
17 |
17 |
17 |
Coefficient of
Therm Expan. (5) |
10 |
10 |
9.0 |
9.2 |
9.1 |
9.1 |
9.1 |
| Cost Factor (6) |
--- |
--- |
2.04 |
1.42 |
2.98 |
--- |
3.54 |
Annealed
UTS (7)
YS (8)
EL (9)
HV (10) |
C70250
---
---
---
--- |
C70260
---
---
---
--- |
C71500
50-65
20-40
25 min
78-93 |
C72500
45-65
18-25
34-36
87 nom |
C72900
64-85
25-45
32% min
100-150 |
C72900
120-150
100-130
6% min
275-350 |
C72900
95-115
75-95
22 min
190-290 |
1/4 Hard
UTS
YS
EL
HV |
C70250
75-92
65 min
10 min
(TMI #1) |
C70260
75-92
65 min
10 min
(TMI #1) |
C71500
58-72
35-69
5-30
120-154 |
C72500
55-75
73 max
5 min
164 max |
C72900
75-100
52-75
18 min
150-235 |
C72900
130-160
115-145
4% min
290-365 |
C72900
---
---
---
--- |
1/2 Hard
UTS
YS
EL
HV |
C70250
---
---
---
--- |
C70250
---
---
---
--- |
C71500
66-80
60-78
3-10
140-167 |
C72500
65-80
59-78
3-17
132-180 |
C72900
85-110
75-100
8 min
170-275 |
C72900
145-175
135-165
3 min
315-390 |
C72900
105-125
90-110
15 min
215-315 |
3/4 Hard
UTS
YS
EL
HV |
C70250
85-102
75 min
8 min
(TMI #2) |
C70260
85-102
75 min
8 min
(TMI #2) |
C71500
---
---
---
--- |
C72500
---
---
---
--- |
C72900
95-120
90-115
3% min
210-290 |
C72900
155-185
145-175
2% min
325-400 |
C72900
---
---
---
--- |
Hard
UTS
YS
EL
HV |
C70250
---
---
---
--- |
C70260
---
---
---
--- |
C71500
75-88
73-84
2-4
160-184 |
C72500
75-90
73-88
1-5
135-180 |
C72900
100-130
95-125
1% min
220-300 |
C72900
165-195
155-185
2% min
335-410 |
C72900
115-135
105-125
10 min
245-345 |
Ex. Hard
UTS
YS
EL
HV |
C70250
92-110
85 min
7 min
(TMI #3) |
C70260
92-110
85 min
7 min
(TMI #3) |
C71500
80-92
78-88
1-3
167-193 |
C72500
80-95
78-93
1-3
153-218 |
C72900
---
---
---
--- |
C72900
---
---
---
--- |
C72900
130-150
120-145
6 min
270-370 |
Spring
UTS
YS
EL
HV |
C70250
---
---
---
--- |
C70260
---
---
---
--- |
C71500
84-94
81-90
1-2
176-200 |
C72500
85-100
83-97
1-2
164-218 |
C72900
---
---
---
--- |
C72900
---
---
---
--- |
C72900
150-178
140-170
2 min
325-405 |
Ex. Spring
UTS
YS
EL
HV |
C70250
---
---
---
--- |
C70260
---
---
---
--- |
C71500
---
---
---
--- |
C72500
90-105
88-102
1 max
187-218 |
C72900
---
---
---
--- |
C72900
---
---
---
--- |
C72900
---
---
---
--- |
| (1) | Lbs.per cubic inch @ 60°F (annealed) |
| (2) | Elastic modulus in tension x 106 P.S.I. |
| (3) | % IACS at 68°F |
| (4) | BTU per sq. ft. per hour per °F at 68°F |
| (5) | Inches per inch x 10-6 from 68°F to 572°F |
| (6) | Approximate relative cost based on ETP copper as 1.00; .025" x 1.00" strip in 10 m lbs. quantity |
| (7) | Ultimate tensile strength x1000 P.S.I. |
| (8) | 0.2% offset yield strength x 1000 P.S.I. Yield strengths are not used or accepted as specifications by brass mills; but, because of their usefulness, values are given here for design purposes |
| (9) | % elongation in 2". Elongation values vary considerably with thickness. The rolled temper data given are based on thicknesses ranging from .010" to .035" strip. |
| (10) | Approximate Vickers hardness - Hv unless otherwise specified. |
