P355gh steel specifications
When we examine the properties of P355gh quality steel, we see that it has higher strength compared to p235 and p295 quality steels. The thickness of p355 quality steel sheets, which have higher heat resistance, generally starts from 3 mm.
P355GH sheet specification
Quality | C | Si | mn | P | S | N | Gettotal | cr | Ni | B.C | Ti | V | nb |
max. | max. | max. | max. | min. | max. | max. | max. | max. | |||||
P235GH1,2) | max. 0.16 | 0.35 | 0,603) – 1,20 | 0.025 | 0.010 | 0,0124) | 0.020 | max. 0.30 | 0.30 | max. 0.08 | 0.03 | 0.02 | 0.030 |
P265GH1,2) | max. 0.20 | 0.40 | 0,803) – 1,40 | 0.025 | 0.010 | 0,0124) | 0.020 | max. 0.30 | 0.30 | max. 0.08 | 0.03 | 0.02 | 0.030 |
P295GH1,2) | 0,08 – 0,20 | 0.40 | 0,903) – 1,50 | 0.025 | 0.010 | 0,0124) | 0.020 | max. 0.30 | 0.30 | max. 0.08 | 0.03 | 0.02 | 0.030 |
P355GH1,2) | 0,10 – 0,22 | 0.60 | 1,10 – 1,70 | 0.025 | 0.010 | 0,0124) | 0.020 | max. 0.30 | 0.30 | max. 0.08 | 0.03 | 0.02 | 0.040 |
16Mo31) | 0,12 – 0,20 | 0.35 | 0,40 – 0,90 | 0.025 | 0.010 | 0.012 | 5) | max. 0.30 | 0.30 | 0,25 – 0,35 | – | – | |
13CrMo4-51) | 0,08 – 0,18 | 0.35 | 0,40 – 1,00 | 0.025 | 0.010 | 0.012 | 5) | 0,706) – 1,15 | – | 0,40 – 0,60 | – | – |
1- Cu ≤% 0.30. A lower Cu content and a maximum tin content can be agreed upon at the order, eg. regarding formability. 2- Cr + Cu + Mo + Ni ≤% 0.70 3- For thicknesses less than 6.0 mm, a minimum Mn content of % 0.20 less than specified is allowed. 4-Al / N ≥ 2 5-All content of melting is to indicate and specify in the certification. 6- If resistance to high pressure hydrogen is important, minimum % 0.80 Cr weight percentage can be agreed upon in the order.
EN 10028 – P355GH
Widely used in the petrochemical industry, P355GH is a pressure vessel steel as specified under the Euro Norm standard (EN10028), which replaces the British Standard and DIN standard equivalents.
This normalized steel is used by manufacturers of welded pressure vessels, industrial boilers and heat exchangers worldwide and
p355 grade steels It is designed to operate at high temperature.
We always supply P355GH from stock. P355 quality sheets are generally between 3mm and 50mm in our stocks.
As with all our steels, it is sent with a material test certificate.
P355GH MECHANICAL PROPERTIES EN 10028 – P355GH
Medicine | Thickness (MM) |
FEEL STRENGTH MPA (MIN)
|
Tensile Strength MPA |
ELONGATION% (MIN)
|
IMPACT ENERGY (KV J) (MIN) | ||
---|---|---|---|---|---|---|---|
-20° | 0° | +20° | |||||
normalized | ≤ 16 | 355 | 510 – 650 | 21 | 27 | 34 | 40 |
16> to ≤40 | 345 | 510 – 650 | 21 | 27 | 34 | 40 | |
40> to ≤60 | 335 | 460 – 580 | 21 | 27 | 34 | 40 | |
60> to ≤100 | 315 | 490 – 630 | 21 | 27 | 34 | 40 | |
100> to ≤150 | 295 | 480 – 630 | 21 | 27 | 34 | 40 | |
150> to ≤250 | 280 | 470 – 630 | 21 | 27 | 34 | 40 |
yield and tensile strengths of boiler sheets
Quality |
|
min. total elongation
|
||
[MPa] | [MPa] | [%] | ||
e ≤ 16 | e > 16 | |||
P235GH | 235 | 225 | 360 – 480 | 24 |
P265GH | 265 | 255 | 410 – 530 | 22 |
P295GH | 295 | 290 | 460 – 580 | 21 |
P355GH | 355 | 345 | 510 – 650 | 20 |
16Mo3 | 275 | 270 | 440 – 590 | 22 |
13CrMo4-5 | 300 | 290 | 450 – 600 | 19 |
1-Transverse examples 2- e = nominal thickness in mm Group P boiler sheets can be welded using ordinary welding techniques.