P355GH
Heat-resistant pressure-vessel steels
Material no. 1.0473 Chemical composition 1) Mechanical properties 1)
according to DIN EN 10028-2 (in percent by weight)
Tensile strength class B Nom. thick. e Yield strength R eH
min. max. < 16 mm ≥ 355 MPa
C 0.100 % 0.220 % ≥ 16 mm ≥ 345 MPa
Usage Si 0.600 %
These steel grades are characterised by a Mn 1.100 % 1.700 % Nom. thick. e Tensile strength Rm
good weldability. They are used above all P 0.025 % ≤ 60mm 510 – 650 MPa
for manufacturing boilers, pressure ves- S 0.015 %
sels and pipes transporting hot liquids. N 2) 0.012 % Nom. thick. e Total elongation A 5
The user of these steel grades must Al 2) 0.020 % 3 < e ≤ 60mm ≥ 20 %
make sure that his calculation, design and Cu 0.300 % 3)
processing methods are appropriate for Cr 0.300 % 1) Transverse samples, normalised
the material. The grades of this series offer Ni 0.300 %
good cold and hot-forming properties. Nb 0.020 %
V 0.020 % Yield point at elevated temperature
Ti 0.030 %
Mo 0.080 % Test Yield point at elev. temp. Rp0,2
temperature e ≤ 16 mm e > 16 mm
1) (Cr + Cu + Mo + Ni) ≤ 0.70% 50°C ≥ 343 MPa ≥ 334 MPa
2) Al/N ≥ 2 100°C ≥ 323 MPa ≥ 314 MPa
3) A lower Cu-content and a maximum tin content 150°C ≥ 299 MPa ≥ 291 MPa
may be agreed in the order, e. g. with respect to 200°C ≥ 275 MPa ≥ 267 MPa
formability.
250°C ≥ 252 MPa ≥ 245 MPa
300°C ≥ 232 MPa ≥ 225 MPa
350°C ≥ 214 MPa ≥ 208 MPa
400°C ≥ 202 MPa ≥ 196 MPa
Notch impact energy 1)
Test temperature Notch impact energy
+20°C ≥ 40J
0°C ≥ 34J
-20°C ≥ 27J
1) Average values of 3 samples; one individual
value may fall short of the required minimum value
by not more than 30%. The sample width shall
equal the product thickness if the latter is between
6 and 10 mm. The tests are performed by using
samples similar to Charpy-V samples. The values
specified in the table above are to be reduced
proportionally to the sample width.
Salzgitter Flachstahl GmbH · Eisenhüttenstraße 99 · 38239 Salzgitter
Phone +49 (0) 5341 21-2890 · Fax +49 (0) 5341 21-8536
E-Mail flachstahl@salzgitter-ag.de · http://www.salzgitter-flachstahl.de
Salzgitter Flachstahl P355GH Page from 2 Edition: 06/06
P355GH
Heat-resistant pressure-vessel steels
Available dimensions Welding
Hot-rolled coils unpickled, mill edge Hot-rolled slit strip The steel grades of this series may be
welded using the usual welding tech-
Thickness in mm Width in mm Thickness in mm Width in mm niques.
2.00 – 2.24 900 – 1400 2.00 – 2.24 100 – 690
2.25 – 2.49 900 – 1450 2.25 – 2.49 100 – 715
2.50 – 2.99 900 – 1500 2.50 – 2.99 100 – 740 Condition of delivery, scope of test-
3.00 – 3.99 900 – 1680 3.00 – 4.50 100 – 800 ing and certificate
4.00 – 6.00 900 – 1750 4.50 – 6.00 116 – 800 The provisions of EN 10028-2, chapters
6.01 – 12.70 900 – 1750 6.01 – 7.00 175 – 800 8.2 and 9 shall apply for delivery and
Widths < 900 mm and thicknesses > 12.70 mm on 7.01 – 8.00 233 – 800 inspection. The steel grades P235GH –
request < 100 mm on request P355GH are delivered in the normalised-
rolled condition (condition of delivery N).
Salzgitter Flachstahl GmbH · Eisenhüttenstraße 99 · 38239 Salzgitter
Phone +49 (0) 5341 21-2890 · Fax +49 (0) 5341 21-8536
E-Mail flachstahl@salzgitter-ag.de · http://www.salzgitter-flachstahl.de
Salzgitter Flachstahl P355GH Page from 2 Edition: 06/06
