1. Extruded graphite tube used in heat-exchanger.
2. Size: dia22/32, 25/38, 30/42 and so on, the length is as the requirement.
Nominal Dia.(mm) | Inner Dia.(mm) | Outside Dia.(mm) | Wall Thickness mm | Wall Thickness Tolerance (mm) | Straightness(mm/m) | Design Pressure(MPa) |
22 | 22 | 32 | 5 | ±0.5 | ≤2.5 | ≤0.3 |
25 | 25 | 38 | 6.5 | ±0.5 | ≤2.5 | ≤0.3 |
30 | 30 | 43 | 6.5 | ±0.5 | ≤2.5 | ≤0.3 |
36 | 36 | 50 | 7 | ±0.5 | ≤2.5 | ≤0.3 |
40 | 40 | 55 | 7.5 | ±0.5 | ≤2.0 | ≤0.2 |
50 | 50 | 67 | 8.5 | ±0.5 | ≤2.0 | ≤0.2 |
65 | 65 | 85 | 10 | ±1.0 | ≤2.0 | ≤0.2 |
75 | 75 | 100 | 12.5 | ±1.0 | ≤2.0 | ≤0.2 |
102 | 102 | 133 | 15.5 | ±1.0 | ≤2.0 | ≤0.2 |
127 | 127 | 159 | 16 | ±1.0 | ≤2.0 | ≤0.2 |
152 | 152 | 190 | 19 | ±1.0 | ≤1.5 | ≤0.2 |
203 | 203 | 254 | 25.5 | ±1.2 | ≤1.5 | ≤0.2 |
254 | 254 | 330 | 38 | ±1.2 | ≤1.5 | ≤0.2 |
Technical Data
Property | Unit | YFSG1 | YFSG2 | JSSG1 | JSSG2 |
Bulk Density | kg/m³ | 1.8X10³ | 1.8X10³ | 1.9X10³ | 1.74X10³ |
Thermal Conductivity | W/(m·k) | 31.4-40.7 | 31.4-40.7 | 104.6-116 | 49 |
C.L.E | 1/ºc(129ºc) | 24.7x10-6 | 8.2x10-6 | 2.4x10-6 | ---------- |
Tensile Strength | MPa | ≥19.6 | ≥16.7 | ≥15.7 | ≥30 |
Compressive Strength | MPa | ≥88.2 | ≥73.5 | ≥75.0 | ≥90 |
Bending Strength | MPa | ≥55.0 dia32/dia22mm | ≥50.0 dia32/dia22mm | ≥50.0 dia32/dia22mm | ≥45 dia32/dia22mm |
≥35.5 (dia50mm/dia36mm) | ≥45 dia50/dia36mm | ||||
Water Pressure Blasting Strength | MPa | 7 (dia32mm/dia22mmx300mm) 6 (dia50mm/dia36mmx300mm) | 9-10 (according to diameter) | ||
Antipermeability | take dia32mm/dia22mmx100mm sample do water pressure test in 1MPa in 10minute, impervious | ||||
The thermal conductivity value of resbon graphite tube is only for reference. | |||||
