P420M is belong to
EN10028-5 weldable fine grain steels,thermomechanically rolled steel plates.
This standard covers the steel grades given in three qualities:
P420M material dimension and tolerances，calculate the mass can refer to EN10028-1
a) the basic series (P...M)
b) series with low temperature properties down to -40 °C (P...ML1);
c) series with low temperature properties down to -50 °C (P...ML2).
For the P420M steel plates，Cr + Cu + Mo) < 0,60 %
The total content of P355ML products V + Nb + Ti shall not exceed a value of 0,15 %.
Two options are specified in this EN10028-5 P420M and listed below. Additionally the relevant options of
EN 10028-1 apply. If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see also EN 10028-1).
a) maximum carbon equivalent (see 8.3.3 EN10028-5);
b) mid thickness test pieces for the impact test (see clause 10).
EN10028-5 P420M Chemical Composition
|
Grade |
Chemical Composition |
|
P420M |
The Element Max (%) |
|
C |
Si |
Mn |
P |
S |
Al |
N |
|
0.16 |
0.50 |
1.70 |
0.025 |
0.020 |
0.020 |
0.020 |
|
Nb |
V |
Ti |
Ni |
Mo |
|
|
|
0.05 |
0.10 |
0.05 |
0.50 |
0.20 |
|
|
P420M Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
EN10028-5 P420M Mechanical Property
|
Grade |
P420M Mechanical Property |
|
P420M |
Thickness |
Yield |
Tensile |
Elongation |
|
mm |
Min Mpa |
Mpa |
Min % |
|
t≤16 |
420 |
500-660 |
19% |
|
16＜t≤40 |
400 |
500-660 |
19% |
|
40＜t≤63 |
390 |
500-660 |
19% |
As you can see,the P420M steel Yield strength(Mpa) is 420Mpa, Tensile strength(Mpa) is 500-600 Elongation(%)Min:19%.
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