LT Copper Working Pressure and Strength of Copper Joints
Joining Material
|
Working Temp
|
Maximum Working Gage Pressure (for
standard water tube sizes)
|
1/8"
thru 1"
|
11/4" thru 2"
|
21/2" thru 4"
|
5" thru 8"
|
10" thru 12"
|
°F
|
°C
|
Psi
|
kg/cm²
|
Psi
|
kg/cm²
|
Psi
|
kg/cm²
|
Psi
|
kg/cm²
|
Psi
|
kg/cm²
|
| 50-50 Tin-Lead Solder² |
100 |
38 |
200 |
14.06 |
175 |
12.30 |
150 |
10.54 |
135 |
9.49 |
100 |
7.03 |
| 150 |
66 |
150 |
10.54 |
125 |
8.79 |
100 |
7.03 |
90 |
6.33 |
70 |
4.92 |
| 200 |
93 |
100 |
7.03 |
90 |
6.33 |
75 |
5.27 |
70 |
14.92 |
50 |
3.51 |
| 250 |
120 |
85 |
5.97 |
75 |
5.27 |
50 |
3.51 |
45 |
3.16 |
40 |
2.81 |
| 95-5 Tin-Antimony Solder³ |
100 |
38 |
500 |
35.14 |
400 |
28.11 |
300 |
21.09 |
270 |
18.98 |
150 |
10.54 |
| 150 |
66 |
400 |
28.11 |
350 |
24.60 |
275 |
19.33 |
250 |
17.57 |
150 |
10.54 |
| 200 |
93 |
300 |
21.09 |
250 |
17.57 |
200 |
14.06 |
180 |
12.65 |
140 |
9.84 |
| 250 |
120 |
200 |
14.06 |
175 |
12.30 |
150 |
10.54 |
135 |
9.49 |
11 |
7.73 |
| Joining* Materials Melting at or above 1000°F (540°C) |
Pressure-temperature ratings consistent with
the material and procedures employed. |
(2) ANSI/ASTM B32 Alloy Grade Sn50
(3) ANSI/ASTM B32 Alloy Grade Sb5
* These joining materials are defined as brazing alloys by the American Welding
Society.
