St E 255 Chemical composition,St E 255 Mechanical properties, St E 255 Manufacturer, DIN17102 ST E 255 steel plates is a kind of material for boiler and pressure vessel steel. DIN17102ST E 255 steel plates is characterized by a minimum yield strength of 170-230MPa and by good weldability, so ST E 255 steel is mainly used to for manufacturing boilers, pressure vessels and pipes transporting hot liquids. the following are DIN17102 ST E 255 steel plate's Chemical composition and mechanical properties
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St E 255 Chemical composition,St E 255 Mechanical properties -% by mass*
|
Grades |
C max |
Si max |
Mn. max |
P max |
S max |
N max |
AL min |
Cr max |
Cu max |
Mo max |
Ni max |
Nb max |
Ti max |
V max |
|
ST E 255 |
0.16 |
0.35 |
0.60-1.20 |
0.025 |
0.015 |
0.012 |
0.02 |
0.3 |
0.03 |
0.08 |
0.3 |
0.02 |
0.03 |
0.02 |
St E 255 Chemical composition,St E 255 Mechanical properties
|
Grade |
TSt E 255ckness (mm) |
Yield Strength MPa(min) |
Tensile Strength MPa |
Elongation % (min) |
Impact Energy (KV J) (min) |
||
|
-20℃ |
0℃ |
20℃ |
|||||
|
ST E 255 |
≤ 16 |
235 |
360 to 480 |
24 |
27 |
34 |
40 |
|
16＜t ≤40 |
225 |
360 to 480 |
24 |
27 |
34 |
40 |
|
|
40＜t ≤60 |
215 |
360 to 480 |
24 |
27 |
34 |
40 |
|
|
6＜t ≤100 |
200 |
360 to 480 |
24 |
27 |
34 |
40 |
|
|
100＜t ≤150 |
185 |
350 to 480 |
24 |
27 |
34 |
40 |
|
|
150＜t ≤250 |
170 |
350 to 480 |
24 |
27 |
34 |
40 |
|
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