P460NH Boiler Quality Material
P460NH vessel plate is a creep-resistant weldable alloy high-grade steel. Pipes made of this steel are used for pressure vessel structures, equipment structures, pipeline structures and general mechanical engineering and equipment structures. Service temperature: about 400 degrees Celsius.
The tensile strength of P460NH boiler plate with a thickness of less than 60 mm is 570 to 720 MPa, and the maximum tensile strength of plates with a thickness of up to 16 mm can reach 730 MPa.
P460NH Boiler Plate Steel chemical composition
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | - |
| max 0.2 | max 0.5 | 1.1 - 1.7 | max 0.8 | max 0.025 | max 0.015 | max 0.3 | max 0.1 | max 0.2 | max 0.025 | max 0.05 | max 0.03 | max 0.02 | max 0.7 | Nb+Ti+V < 0.22 |
P460NH pressure vessel plate mechanical property
| Grade | Thickness | Yield | Tensilmie | Elongation | Impact Energy(KV J) min | ||
| P460NH | mm | Min Mpa | Mpa | Min % | -20° | 0° | +20° |
| ≤ 16 | 460 | 570-720 | 17 | 47 | 55 | 63 | |
| 16> to ≤35 | 450 | 570-720 | 17 | 47 | 55 | 63 | |
| 35> to ≤50 | 440 | 570-720 | 17 | 47 | 55 | 63 | |
| 50> to ≤70 | 420 | 570-720 | 17 | 47 | 55 | 63 | |
| 70> to ≤100 | 400 | 540-710 | 16 | 47 | 55 | 63 | |
| 100> to ≤150 | 380 | 520-690 | 16 | 47 | 55 | 63 | |
P460NH vessel steel plate thermal properties
| Property | Temperature | Value |
|---|---|---|
|
Coefficient of thermal expansion |
-100.0 °C |
1.05E-5 1/K |
|
20.0 °C |
1.15E-5 1/K |
|
|
100.0 °C |
1.21E-5 1/K |
|
|
200.0 °C |
1.27E-5 1/K |
|
|
300.0 °C |
1.32E-5 1/K |
|
|
400.0 °C |
1.36E-5 1/K |
|
|
500.0 °C |
1.4E-5 1/K |
|
|
600.0 °C |
1.44E-5 1/K |
|
|
Max service temperature, long |
0 - 400 °C |
|
|
Specific heat capacity |
-100.0 °C |
423 J/(kg·K) |
|
20.0 °C |
461 J/(kg·K) |
|
|
100.0 °C |
479 J/(kg·K) |
|
|
200.0 °C |
499 J/(kg·K) |
|
|
300.0 °C |
517 J/(kg·K) |
|
|
400.0 °C |
536 J/(kg·K) |
|
|
500.0 °C |
558 J/(kg·K) |
|
|
600.0 °C |
587 J/(kg·K) |
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