| |
Beryllium Copper |
| UNS |
C17200 |
C17410 |
| |
As Rolled
97.9 Cu 1.9 Be .2 Co |
After Age Hardening (11)
97.9 Cu 1.9 Be .2 Co |
Mill Hardened
97.9 Cu 1.9 Be .2 Co |
Mill Hardened
99.2 Cu .3 Be .5 Co |
| Density (1) |
.298 |
.298 |
.298 |
.318 |
| Mod.of Elast. (2) |
18.5 |
18.5 |
18.5 |
20 |
| Elect.Cond. (3) |
17 |
22 |
20 |
50 |
| Thermal Cond. (4) |
62 |
75 |
70 |
135 |
Coefficient of
Therm Expan. (5) |
9.9 |
9.9 |
9.9 |
--- |
| Cost Factor (6) |
4.17 |
--- |
4.48 |
2.09 |
Annealed
UTS (7)
YS (8)
EL (9)
HV (10) |
C17200
60-78
28-36
35-60
90-130 |
C17200
165-195
140-175
3-10
350-400 |
C17200
100-110
70-95
18-23
220-250 |
C17410
---
---
---
--- |
1/4 Hard
UTS
YS
EL
HV |
C17200
75-88
60-80
10-35
140-190 |
C17200
175-205
150-185
2.5-6
365-415 |
C17200
110-120
80-110
15-20
240-280 |
C17410
---
---
---
--- |
1/2 Hard
UTS
YS
EL
HV |
C17200
85-100
75-95
5-25
180-220 |
C17200
185-215
160-195
1-5
375-420 |
C17200
120-135
95-125
12-18
260-300 |
C17410
95-115
80-100
10 min.
190-250 |
3/4 Hard
UTS
YS
EL
HV |
C17200
90-110
---
3-15
--- |
C17200
---
---
---
--- |
C17200
---
---
---
--- |
C17410
---
---
---
--- |
Hard
UTS
YS
EL
HV |
C17200
100-120
90-112
2-8
215-250 |
C17200
190-220
165-205
1-3
385-430 |
C17200
135-150
110-135
9-15
300-435 |
C17410
110-130*
100-120*
7 min.*
210-270* |
Ex. Hard
UTS
YS
EL
HV |
C17200
---
---
---
--- |
C17200
---
---
---
--- |
C17200
155-175
135-170
3-9
335-380 |
C17410
---
---
---
--- |
Spring
UTS
YS
EL
HV |
C17200
---
---
---
--- |
C17200
---
---
---
--- |
C17200
---
---
---
--- |
C17410
---
---
---
--- |
Ex. Spring
UTS
YS
EL
HV |
C17200
---
---
---
--- |
C17200
---
---
---
--- |
C17200
---
---
---
--- |
C17410
---
---
---
--- |
| (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. |
| (11) | Standard heat treatment 2 hrs. at 600°F (3 hrs. at 600° for annealed temper) |
