P275NH Boiler Steel Plate
P275NH Pressure Vessel Steel Plate is a weldable fine grain steel suitable for manufacturing pressure vessels for pressurized gases and chemicals, industrial boilers, compressors and heat exchangers.
P275NH vessel plate is suitable for medium and high temperature services.
To ensure the safety of pressure vessel plates, boiler steel plates P275NH are subjected to ultrasonic inspection after rolling.
P275NH pressure vessel steel chemical composition
| Property | Value | Comment |
|---|---|---|
|
Aluminium |
0.02 % |
min. |
|
Carbon |
0.16 % |
max. |
|
Chromium |
0.3 % |
max. |
|
Copper |
0.3 % |
max. |
|
Manganese |
0.8 - 1.5 % |
|
|
Molybdenum |
0.08 % |
max. |
|
Nickel |
0.5 % |
max. |
|
Niobium |
0.05 % |
max. |
|
Nitrogen |
0.012 % |
max. |
|
Phosphorus |
0.025 % |
max. |
|
Silicon |
0.4 % |
max. |
|
Sulfur |
0.01 % |
max. |
|
Titanium |
0.03 % |
max. |
|
Vanadium |
0.05 % |
max. |
P275NH boiler steel plate mechanical property
| Property | Temperature | Value | Comment |
|---|---|---|---|
|
Charpy impact energy |
-20 °C |
30 J |
min. | for thickness 6-16 mm | Transverse |
|
-20 °C |
45 J |
min. | for thickness 6-16 mm |
|
|
0 °C |
40 J |
min. | for thickness 6-16 mm | Transverse |
|
|
0 °C |
65 J |
min. | for thickness 6-16 mm |
|
|
20 °C |
50 J |
min. | for thickness 6-16 mm | Transverse |
|
|
20 °C |
75 J |
min. | for thickness 6-16 mm |
|
|
Elongation |
19 % |
min. | for thickness 1.5-3 mm | Transverse, A80 |
|
|
24 % |
min. A5.65√So | for thickness 3-16 mm | Transverse |
||
|
Tensile strength |
390 - 510 MPa |
for thickness 1.5-16 mm | Transverse |
|
|
Yield strength |
275 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
50 °C |
266 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
100 °C |
250 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
150 °C |
232 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
200 °C |
213 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
250 °C |
195 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
300 °C |
179 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
350 °C |
166 MPa |
min. | for thickness 1.5-16 mm | Transverse |
|
|
400 °C |
156 MPa |
min. | for thickness 1.5-16 mm | Transverse |
P275NH steel boiler plate Maximum Carbon Equivalent Value (CEV)
|
Grade |
Material No. |
CEV max for nominal thickness t in mm |
||
|
t≤60 |
60< t≤100 |
100< t≤250 |
||
|
P275NH |
1.0487 |
0.40 |
0.40 |
0.42 |
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Our products have undergone strict quality inspections and are equipped with professional certificates. If you have any questions about P275NH Boiler Steel Plate, you are welcome to check.
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