Accreditation Administration System:
P460Q is the most common grade in specification EN10028_6, which is a kind of Quenched and Tempered
steel plates mainly intended for building welded boilers and pressure vessels.Accoding to the yield strength,it
has four different class,355,460,500,690,then according to the temperature of impacting test,it contains Q,
QH,QL1 and QL2 four classes.Now we list the relative grades in this specifications:
P355Q|P355QH|P355QL1|P355QL2|P460Q|P460QH|P460QL1|P460QL2|P500Q|P500QH|P500QL1|P500QL2
|P690Q|P690QH|P690QL1|P690QL2
We foucs on analysis of Grade P460Q as follows:
Property Data:(Cast Analysis)
|
EN10028-6 | ||||||||
|
Grade |
|
P460Q |
P460QH |
P460QL1 |
P460QL2 | |||
|
Chemical Composition % ≤ By Mass |
C |
0.18 | ||||||
|
Si |
0.50 | |||||||
|
Mn |
1.70 | |||||||
|
P |
0.025 |
0.020 | ||||||
|
S |
0.015 |
0.010 | ||||||
|
N |
0.015 | |||||||
|
B |
0.005 | |||||||
|
Cr |
0.50 | |||||||
|
Mo |
0.50 | |||||||
|
Cu |
0.30 | |||||||
|
Nb |
0.05 | |||||||
|
Ni |
1.00 | |||||||
|
Ti |
0.03 | |||||||
|
V |
0.08 | |||||||
|
Zr |
0.15 | |||||||
|
Mechanical Property ≥ |
Yield (Mpa) |
t≤50 |
460 | |||||
|
50﹤t≤100 |
440 | |||||||
|
100﹤t≤150 |
400 | |||||||
|
Tensile (Mpa) |
t≤100 |
490-630 | ||||||
|
100﹤t≤150 |
450-590 | |||||||
|
Impacting test temperature ℃ |
|
-20 |
-40 |
-60 | ||||
Delivery condition: All the plates covered by this specification shall be supplied in the Quenched and Tempered.
If request,we would provide our customer with date on suitable welding conditions determined on the basis of
weld procedure tests.
