1.Mechnical property for GB/T 1591-2018 Q355NC STEEL PLATE
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Mechanical Property for Q355NC steel plate |
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Thickness (mm) |
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Yield strength (≥Mpa) |
T≤16 |
16<T≤40 |
40<T≤63 |
63<T≤80 |
80<T≤100 |
100<T≤150 |
150<T≤200 |
200<T |
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355 |
345 |
335 |
325 |
315 |
295 |
285 |
275 |
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Tensile strength (Mpa) |
T≤100 |
100<T≤200 |
200<T |
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470-630 |
450-600 |
450-600 |
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2.Chemical composition for GB/T 1591-2018 Q355NC STEEL PLATE (Heat Analysis Max%)
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Main chemical elements composition of Q355NC |
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C |
Si |
Mn |
P |
S |
Nb |
V |
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0.20 |
0.50 |
0.90-1.65 |
0.030 |
0.030 |
0.005-0.05 |
0.01-0.12 |
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Ti |
Cr |
Ni |
Cu |
Mo |
N |
Als Min. |
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0.006-0.05 |
0.30 |
0.50 |
0.40 |
0.10 |
0.015 |
0.015 |

3.Introduction to Q355NC Steel Plate
Q355NC Steel Plate Implementation Standard: GB/T1591-2018
Meaning of the Alphanumeric Implementation Standard Number for Q355NC Steel Plate
GB in the Q355NC Steel Plate Standard = National Standard
T in the Q355NC Steel Plate Standard = Recommended
1591 in the Q355NC Steel Plate Standard = Implementation Standard Number
2018 in the Q355NC Steel Plate Standard = Implementation Standard Year
4.Technical Requirements & Additional Services for Q355NC steel plate:
Normalising or Normalising Rolling heat treatment
Cutting,Welding,Machining,Milling as per end user's CAD drawing
Shot blasting comply to SA 2.5 or SSPC and painting with shop primer
More striction on some chemical elements contains for special applications
Non-destructive inspection under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1.




