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S235,S265,S275is a type of simple pressure vessels steel, these steel grades are characterised by a minimum yield strength of 235 - 275 MPa and by good weldability. The user of these steel grades must make sure that his calculation, design and processing methods are appropriate for the material.
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Europe
France
International
GB
FK
DIN10207
EN 10207
NFA 36-205
UNI 5869
BS 1501
S235
1.0112
P235S
A 37 AP
Fe 360-2kw
164-360BLT20
A
S265
1.013
P265S
A 42 AP
Fe 410-2kw
164-400BLT20
A
S275
1.11
P245S
-
-
-
A
FK=Tensile strength class
The Chemical Composition of S235,S265,S275
Grade | CMax | SiMax | Mn | PMax | SMax | AlMin |
S235 | 0.16 | 0.35 | 0.40-1.20 | 0.025 | 0.025 | 0.02 |
S265 | 0.2 | 0.4 | 0.50-1.50 | 0.025 | 0.025 | 0.02 |
S275 | 0.16 | 0.4 | 0.50-1.50 | 0.025 | 0.02 | 0.02 |
The Mechanical Properties of S235,S265,S275
Grade | Min. Yield StrengthMPa | Min.YieldStrengthMPa | Min.Total Elongation [%] | |||
e2) ≤16 | 16<e2) ≤16 | Lo= | Lo=5,65 | |||
2<e2) ≤2,5 | 2,5<e2) ≤3 | 3<e2) ≤40 | ||||
S235 | 235 | 225 | 360-480 | 20 | 21 | 26 |
S265 | 265 | 255 | 410-530 | 17 | 18 | 22 |
S275 | 275 | 265 | 390-510 | 19 | 20 | 24 |
Yield Point at Elevated Temperature
Grade | Min. 0,2% Yield Point[MPa] at Elevated Temperature | ||||
100 | 150 | 200 | 250 | 300 | |
S235 | 171 | 162 | 153 | 135 | 117 |
S265 | 194 | 185 | 176 | 158 | 140 |
S275 | 221 | 203 | 176 | 159 | 132 |
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