| |
Brass |
| UNS |
C21000 |
C22000 |
C23000 |
C24000 |
C26000 |
| |
Guilding Metal
95 Cu 5 Zn |
Commercial Bronze
90 Cu 10 Zn |
Red Brass
85 Cu 15 Zn |
Low Brass
80 Cu 20 Zn |
Cartridge Brass
70 Cu 30 Zn |
| Density (1) |
.320 |
.318 |
.316 |
.313 |
.308 |
| Mod.of Elast. (2) |
17 |
17 |
17 |
16 |
16 |
| Elect.Cond. (3) |
56 |
44 |
37 |
32 |
28 |
| Thermal Cond. (4) |
135 |
109 |
92 |
81 |
70 |
Coefficient of
Therm Expan. (5) |
10.0 |
10.2 |
10.4 |
10.6 |
11.1 |
| Cost Factor (6) |
.97 |
.96 |
.94 |
.93 |
.91 |
Annealed
UTS (7)
YS (8)
EL (9)
HV (10) |
C21000
34-40
5-15
42-48
50-57 |
C22000
36-42
8-17
46-49
55-75 |
C23000
39-47
8-19
43-58
60-85 |
C24000
44-54
12-29
43-58
65-95 |
C26000
45-61
10-33
40-67
70-115 |
1/4 Hard
UTS
YS
EL
HV |
C21000
37-47
15-46
15-45
67-97 |
C22000
40-50
19-47
15-40
72-102 |
C23000
44-54
23-48
15-39
76-110 |
C24000
48-58
18-40
18-35
81-116 |
C26000
49-59
21-46
34-59
82-117 |
1/2 Hard
UTS
YS
EL
HV |
C21000
42-52
37-51
5-29
82-106 |
C22000
47-57
42-53
5-20
93-118 |
C23000
51-61
43-54
8-21
100-130 |
C24000
55-65
35-50
12-25
105-135 |
C26000
57-67
42-60
19-42
107-142 |
3/4 Hard
UTS
YS
EL
HV |
C21000
46-56
45-55
2-17
93-117 |
C22000
52-62
49-59
3-10
105-128 |
C23000
57-67
51-60
4-12
118-143 |
C24000
61-71
48-58
6-15
124-149 |
C26000
64-74
55-69
8-29
130-160 |
Hard
UTS
YS
EL
HV |
C21000
50-59
49-58
2-8
102-104 |
C22000
57-66
53-63
2-6
116-138 |
C23000
63-72
57-65
5-9
130-150 |
C24000
68-77
57-65
4-8
140-161 |
C26000
71-81
67-78
6-14
148-173 |
Ex. Hard
UTS
YS
EL
HV |
C21000
56-64
55-63
2 max.
114-134 |
C22000
64-72
60-67
1-3
130-150 |
C23000
72-80
65-71
3-5
146-166 |
C24000
78-87
65-72
2-3
158-180 |
C26000
83-92
79-87
2-5
164-189 |
Spring
UTS
YS
EL
HV |
C21000
60-68
59-67
2 max.
122-142 |
C22000
69-77
65-71
1-2
140-160 |
C23000
78-86
69-76
3-4
156-176 |
C24000
85-93
71-81
1-2
170-190 |
C26000
91-100
82-91
1-2
178-203 |
Ex. Spring
UTS
YS
EL
HV |
C21000
61-69
60-68
2 max.
124-144 |
C22000
72-80
67-74
1 max.
140-166 |
C23000
82-90
73-80
2 min.
162-182 |
C24000
89-97
73-84
1 max.
174-194 |
C26000
95-104
86-93
1-2
184-209 |
| (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. |
