ISO B Industrial Working and Burst Pressures
| Body Size |
Steel Working PSI |
Steel Burst PSI |
Brass Working PSI |
Brass Burst PSI |
| 1/8 |
4,000 |
14,500 |
3,000 |
16,500 |
| 1/4 |
5,000 |
22,500 |
3,000 |
15,000 |
| 3/8 |
4,000 |
16,500 |
3,000 |
12,000 |
| 1/2 |
4,000 |
16,000 |
2,500 |
11,500 |
| 3/4 |
4,000 |
16,500 |
2,000 |
12,000 |
| 1 |
4,000 |
16,000 |
1,500 |
8,500 |
| 1-1/4 |
2,500 |
10,000 |
1,000 |
6,500 |
| 1-1/2 |
2,500 |
12,500 |
1,000 |
6,500 |
| 2-1/2 |
1,500 |
6,000 |
700 |
5,500 |
| |
|
|
|
|
| Body Size |
303 Stainless Working PSI |
303 Stainless Burst PSI |
316 Stainless Working PSI |
316 Stainless Burst PSI |
| 1/8 |
3,500 |
29,000 |
3,500 |
29,500 |
| 1/4 |
3,500 |
31,500 |
3,500 |
33,000 |
| 3/8 |
3,500 |
26,500 |
3,500 |
28,000 |
| 1/2 |
3,500 |
27,500 |
3,500 |
22,000 |
| 3/4 |
3,000 |
16,000 |
3,000 |
21,500 |
| 1 |
2,000 |
15,000 |
2,000 |
15,000 |
| 1-1/4 |
2,000 |
10,000 |
1,000 |
8,500 |
| 1-1/2 |
1,500 |
8,500 |
1,000 |
7,000 |
| 2-1/2 |
1,000 |
6,500 |
900 |
6,000 |
|
