Temperature pressure correction factor value | |||
Tenperature t/°C | 0≤t≤20 | 20≤t≤30 | 30≤t≤40 |
Correction Coefficient | 1 | 0.95 | 0.90 |
Main Technical Department | ||
Serial Number | Main performance project | Index |
1 | Medium Temperature | -20°C ≤t≤ 65°C |
2 | Strong Modulus | 2.8-3.0GPa |
3 | Corrossion Resistance | Good |
4 | Thermal Conductiving | 0.15-2.0 w/m.k |
5 | Tube Wall Roughness | Ra.0.007 |
6 | Linear Expansion Coefficinet | 12-15x10-5m/m.k |
Physical & Mechanical Properties | ||||
Use Symbol | Experimental Temperature | Short-term pressure and bursting force | Time/h | Performance requirements |
LT | 20°C | Nominal pressure x2 | 1 | Not broke, no leaking |
20°C | Brust pressure≥Nominal pressure x3 | Blasting | ||
Q | 20°C | Nominal pressure x1.6x2 | 1 | Not broke, no leaking |
20°C | Brust pressure≥Nominal pressurex3.3x1.6 | Blasting | ||
Thermal stability(200°C) | Ps. Brust test pressure is not mandatory when DN≥250 |
Diameter(mm) | Wall thickness(mm) | |||||||
0.8Mpa | 1.0Mpa | 1.25Mpa | 1.6Mpa | 2.0Mpa | 2.5Mpa | 3.0Mpa | 3.5Mpa | |
50 | - | 4.5 | 4.5 | 4.5 | 5.0 | 5.5 | 5.5 | 5.5 |
63 | - | 4.5 | 4.5 | 4.5 | 5.0 | 5.5 | 5.5 | 5.5 |
75 | - | 5.0 | 5.0 | 5.0 | 5.0 | 5.5 | 6.0 | 6.0 |
90 | - | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 6.0 | 6.0 |
110 | - | 5.5 | 5.5 | 7.0 | 7.0 | 7.5 | 8.5 | 8.5 |
125 | - | 5.5 | 5.5 | 7.5 | 8.0 | 8.5 | 9.5 | 9.5 |
140 | - | 5.5 | 5.5 | 8.0 | 8.5 | 9.0 | 9.5 | 9.5 |
160 | - | 6.0 | 6.0 | 9.0 | 9.5 | 10.0 | 10.5 | 10.5 |
200 | - | 6.0 | 6.0 | 9.5 | 10.5 | 11.0 | 12.0 | 12.0 |
225 | - | 8.0 | 8.0 | 10.0 | 10.5 | 11.0 | 12.0 | 12.0 |
250 | 8.0 | 10.5 | 10.5 | 12 | 12 | 12.5 | 14.0 | 14.0 |
280 | 9.5 | 11.0 | 11.0 | 12.0 | 13.0 | 15.0 | 15.0 | 17.0 |
315 | 9.5 | 11.5 | 11.5 | 13.0 | 13.0 | 15.0 | 15.0 | 18.0 |
355 | 10.0 | 12.0 | 12.0 | 14.0 | 14.0 | 17.0 | 17.0 | 19.0 |
400 | 10.5 | 12.5 | 12.5 | 15.0 | 16.0 | 17.0 | 17.0 | - |
450 | 11.5 | 13.5 | 13.5 | 16.0 | 18.0 | 18.0 | - | - |
500 | 12.5 | 15.5 | 15.5 | 18.0 | 19.0 | 22.0 | - | - |
630 | 20.0 | 23.0 | 23.0 | 26.0 | 26.0 | - | - | - |
710 | 23.0 | 26.0 | 26.0 | 30.0 | - | - | - | - |
800 | 27.0 | 30.0 | 30.0 | 34.0 | - | - | - | - |
900 | 29.0 | 33.5 | 33.5 | 38.0 | - | - | - | - |
1000 | 34.0 | 37.0 | - | - | - | - | - | - |