EN 10028-3 P275 NL2 steel plates are normalized heat-treated steel plates. and low temperature impacting test under minus 50 centigrade degrees have to be done for these pressure vessel steel plates when rolling.
Standard: EN 10028-3
Dimensions for EN 10028-3 P275 NL2 steel manufactured types:
Hot Rolled Steel plates
Thickness: 3 – 120mm
width: 1500-4500mm
Certificates: 3.1/3.2 (width > 2750 mm : 3.1)
Forged plates
Thickness: 150 - 250 mm
width: 1500-2000mm
Certificates: 3.1
Forged bars
Thickness: 361 - 1000 mm
width: 1500-2000mm
Certificates: to be defined
Chemical composition for EN 10028-3 P275 NL2 steel:
The Chemical element Composition of P275 NL2 |
|||||||
|
The Element Max (%) |
||||||
C |
Si |
Mn |
P |
S |
Al(min) |
N |
|
0.16 |
0.40 |
0.5-1.40 |
0.025 |
0.015 |
|
0.02 |
|
Cr |
Cu |
Mo |
Nb |
Ni |
Ti |
V |
|
0.30 |
0.30 |
0.08 |
0.005 |
0.50 |
0.03 |
0.05 |
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Mechanical property for EN 10028-3 P275 NL2 steel:
Grade |
|
||||||
Thickness |
Yield strength |
Tensile strength |
Elongation |
Impact Energy(KV J) min |
|||
mm |
Min Mpa |
Mpa |
Min % |
-20° |
0° |
+20° |
|
≤ 16 |
275 |
390-510 |
24 |
65 |
90 |
100 |
|
16> to ≤35 |
275 |
390-510 |
24 |
65 |
90 |
100 |
|
35> to ≤50 |
265 |
390-510 |
24 |
65 |
90 |
100 |
|
50> to ≤70 |
255 |
390-510 |
24 |
65 |
90 |
100 |
|
70> to ≤100 |
235 |
370-490 |
23 |
65 |
90 |
100 |
|
100> to ≤150 |
235 |
350-470 |
23 |
65 |
90 |
100 |
|
Typical applications for EN 10028-3 P275 NL2 steel
manufacturing boilers, pressure vessels and pipes transporting hot liquids.
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