P235GH steel plate is belong to the EN 10028-2 boiler steel pressure vessel and boiler steel plate/coil. And P235GH steel plate is widely used in the fabrication of boilers and pressure vessel, such as petroleum, chemical, gas industry and power plants.
P235GH steel plate is also a heat-resistant pressure vessel steel defined in the EN 10028-2 boiler steel system. Similar to P235GH steel plate, but lower carbon content and higher manganese content. Compared with P235GH steel plate, the yield rate and tensile strength of P235GH steel plate are lower.
P235GH steel plate chemical composition
| Grade |
C |
Si |
Mn |
P |
S |
Al |
N |
|
P235GH |
0.16 |
0.35 |
0.60-1.2 |
0.025 |
0.015 |
0.02 |
0.012 |
|
Cr |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
|
|
0.30 |
0.30 |
0.08 |
0.02 |
0.3 |
0.03 |
0.02 |
P235GH steel plate mechanical properties
| Grade |
Thickness mm |
Yield strength |
Tensile strength |
Elongation % |
Impact Energy(KV J) min |
||
|
P235GH |
≤16 |
235 Mpa |
360-480 |
24 |
-20° |
0° |
+20° |
|
16<t≤40 |
225 Mpa |
360-480 |
24 |
27 |
34 |
40 |
|
|
40<t≤60 |
215 Mpa |
360-480 |
24 |
27 |
34 |
40 |
|
|
60<t≤100 |
205 Mpa |
360-480 |
24 |
27 |
34 |
40 |
|
|
100<t≤150 |
185 Mpa |
350-480 |
24 |
27 |
34 |
40 |
|
|
150<t≤250 |
170 Mpa |
340-480 |
24 |
27 |
34 |
40 |
|
P235GH steel plate equivalent grades
| EN |
Europe |
Beigium |
Germany |
Italy |
Sweden |
India |
Japan |
|
P235GH |
FeE255 |
D371,2 |
HI |
Fe360-1-KW |
SS 13,30,01 |
Grade 1 |
SPV 235 |
Pressure vessel steel has strict chemical composition and quality control requirements. It must ensure the minimum strength and sufficient toughness, and is suitable for welding. When necessary, it must meet the special performance requirements of high and low temperatures.
EN10028-2 boiler steel chemical composition:
| Steel Grade | Number | C | Si | Mn | P | S | Al | N | Cr | Cub | Mo | Nb | Ni | Ti | V | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P235GH | 1.0345 | ≤0.16 | ≤0.35 | 0.60cto1.20 | 0.025 | 0.015 | ≤0.020 | ≤0.012d | ≤0.30 | ≤0.30 | ≤0.08 | ≤0.020 | ≤0.30 | 0.03 | ≤0.02 | |
| P265GH | 1.0425 | ≤0.20 | ≤0.40 | 0.80cto1.40 | 0.025 | 0.015 | ≤0.020 | ≤0.012d | ≤0.30 | ≤0.30 | ≤0.08 | ≤0.020 | ≤0.30 | 0.03 | ≤0.02 | |
| P295GH | 1.0481 | 0.08 to 0.20 | ≤0.40 | 0.90cto1.50 | 0.025 | 0.015 | ≤0.020 | ≤0.012d | ≤0.30 | ≤0.30 | ≤0.08 | ≤0.020 | ≤0.30 | 0.03 | ≤0.02 | |
| P355GH | 1.0473 | 0.10 to 0.22 | ≤0.40 | 1.10to1.70 | 0.025 | 0.015 | ≤0.020 | ≤0.012d | ≤0.30 | ≤0.30 | ≤0.08 | ≤0.020 | ≤0.30 | 0.03 | ≤0.02 | |
| 16Mo3 | 1.5415 | 0.12 to 0.20 | ≤0.35 | 0.40to0.90 | 0.025 | 0.010 | ≤0.012 | ≤0.30 | ≤0.30 | 0.25-0.35 | - | ≤0.30 | - | - | ||
EN10028-2 boiler steel is mainly to materials used to make superheaters, main steam pipes and heating surfaces of boiler fire chambers.
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