P355QH Steel Plate For Boiler Pressure Vessel
P355QH boiler steel plate is a steel for boilers and pressure vessels, with good weldability, and can be used for high-temperature equipment and pressure vessels.
GNEE is a manufacturer specializing in the production and export of P355QH container steel plates for 16 years. The minimum yield strength of P355QH pressure steel plates produced by GNEE is 170-230MPa, which meets the EN10028-6 production standard.
P355QH steel boiler plate chemical composition
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B |
| max 0.16 | max 0.4 | max 1.5 | max 0.5 | max 0.025 | max 0.01 | max 0.3 | max 0.25 | max 0.06 | max 0.015 | max 0.05 | max 0.03 | max 0.3 | max 0.05 | max 0.005 |
P355QH Boiler Plate Steel mechanical property
|
Grade |
Type |
Thickness mm |
Yield strength Mpa(min) |
Tensile Strength MPa |
Elongation % (min) |
Impact Energy (KVJ) (min) |
||
|
-20° |
0° |
+20 |
||||||
|
P355QH |
Normalized |
≤16 16>to≤40 40>to≤60 60>to≤100 100>to≤150 150 >to ≤250 |
355 |
510-650 |
20 |
27 |
34 |
40 |
|
345 |
510-650 |
20 |
27 |
34 |
40 |
|||
|
335 |
460-580 |
20 |
27 |
34 |
40 |
|||
|
315 |
490-630 |
20 |
27 |
34 |
40 |
|||
|
295 |
480-630 |
20 |
27 |
34 |
40 |
|||
|
280 |
470-630 |
20 |
27 |
34 |
40 |
|||
P355QH pressure vessel plate physical properties
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J/kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 358(≥) | 989(≥) | 43 | 32 | 13 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 211 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0)N/mm2 |
Creep rupture strength (10000h) (Rp1,0)N/mm2 |
|||||
| 385 | 916 | 146 |
pressure vessel steel plate Products image
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