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EN10025-4 steel plates are hot rolled weldable fine grain structural steels in the thermomechanical rolled condition in the grades of S275, S355, S420 and S460. EN10025-4 steel plates shall be classified as alloy special steels. All the EN10025-4 steel grades may be supplied in the following qualities:
With specified minimum values of impact energy at temperatures not lower than -20℃, designated as M;
With specified minimum values of impact energy at temperatures not lower than -50℃, designated as ML.
Thermomechanical rolled EN10025-4 steel plates chemical composition of the ladle analysis:
EN10025-4 |
Steel number |
C |
Si |
Mn |
P |
S |
Nb |
V |
Al(total) |
Ti |
Cr |
Ni |
Mo |
Cu |
N |
|
1.8818 |
0.13 |
0.50 |
1.50 |
0.030 |
|
0.05 |
0.08 |
0.02 |
0.05 |
0.30 |
0.30 |
0.10 |
0.55 |
0.015 |
|
|
1.8819 |
0.13 |
0.50 |
1.50 |
0.025 |
0.020 |
0.05 |
0.08 |
0.02 |
0.05 |
0.30 |
0.30 |
0.10 |
0.55 |
0.015 |
|
|
1.8823 |
0.14 |
0.50 |
1.60 |
0.030 |
0.025 |
0.05 |
0.10 |
0.02 |
0.05 |
0.30 |
0.50 |
0.10 |
0.55 |
0.015 |
|
|
1.8834 |
0.14 |
0.50 |
1.60 |
0.025 |
0.020 |
0.05 |
0.10 |
0.02 |
0.05 |
0.30 |
0.50 |
0.10 |
0.55 |
0.015 |
|
|
1.8825 |
0.16 |
0.50 |
1.70 |
0.030 |
0.025 |
0.05 |
0.12 |
0.02 |
0.05 |
0.30 |
0.80 |
0.20 |
0.55 |
0.025 |
|
|
1.8836 |
0.16 |
0.50 |
1.70 |
0.025 |
0.020 |
0.05 |
0.12 |
0.02 |
0.05 |
0.30 |
0.80 |
0.20 |
0.55 |
0.025 |
|
|
1.8827 |
0.16 |
0.60 |
1.70 |
0.030 |
0.025 |
0.05 |
0.12 |
0.02 |
0.05 |
0.30 |
0.80 |
0.20 |
0.55 |
0.025 |
|
|
1.8838 |
0.16 |
0.60 |
1.70 |
0.025 |
0.020 |
0.05 |
0.12 |
0.02 |
0.05 |
0.30 |
0.80 |
0.20 |
0.55 |
0.025 |
Thermomechanical rolled EN10025-4 steel plates mechanical properties at ambient temperature:
EN10025-4 |
Yield strength Mpa |
Tensile strength Mpa |
Elongation |
|||||||||
|
Thickness (mm) |
≤16 |
16-40 |
40-63 |
63-80 |
80-100 |
100-120 |
≤40 |
40-63 |
63-80 |
80-100 |
100-120 |
(%) |
|
S275M |
275 |
265 |
255 |
245 |
245 |
240 |
370-530 |
360-520 |
350-510 |
350-510 |
350-510 |
24 |
|
S275ML |
275 |
265 |
255 |
245 |
245 |
240 |
370-530 |
360-520 |
350-510 |
350-510 |
350-510 |
24 |
|
S355M |
355 |
345 |
335 |
325 |
325 |
320 |
470-630 |
450-610 |
440-600 |
440-600 |
430-590 |
22 |
|
S355ML |
355 |
345 |
335 |
325 |
325 |
320 |
470-630 |
450-610 |
440-600 |
440-600 |
430-590 |
22 |
|
S420M |
420 |
400 |
390 |
380 |
370 |
365 |
520-680 |
500-600 |
480-640 |
470-630 |
460-620 |
19 |
|
S420ML |
420 |
400 |
390 |
380 |
370 |
365 |
520-680 |
500-600 |
480-640 |
470-630 |
460-620 |
19 |
|
S460M |
460 |
440 |
430 |
410 |
400 |
385 |
540-720 |
530-710 |
510-690 |
500-680 |
490-660 |
17 |
|
S460ML |
460 |
440 |
430 |
410 |
400 |
385 |
540-720 |
530-710 |
510-690 |
500-680 |
490-660 |
17 |
Thermomechanical rolled EN10025-4 steel plates are intended for use in heavily loaded parts of welded structures such as, bridges, flood gates, storage tanks, water supply tanks, etc., for service at ambient and low temperatures.
