Thick steel plate for low temperature use and capable of being welded in superhigh energy and its production process
A manufacturing method and technology of line energy, applied in welding medium, manufacturing tools, temperature control, etc., can solve problems affecting the manufacturing efficiency and application range of steel structures, unstable low temperature toughness of thick steel plates, and thick plates that cannot withstand ultra-high line energy welding, etc. question
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[0056] See Table 1 to Table 3 for specific embodiments.
[0057]
steel sample
C(%)
Si(%)
Mn(%
)
P(%)
S(%)
Als(%)
Nb(%)
N(ppm)
Ti(%)
B(ppm)
Ca(ppm)
Cu(%)
Ni(%)
Example 1
0.045
0.16
1.70
0.010
0.0016
0.048
0.013
32
0.010
19
32
/
/
Example 2
0.040
0.17
1.65
0.008
0.0013
0.052
0.018
28
0.009
22
36
/
/
Example 3
0.050
0.15
1.55
0.010
0.0019
0.057
0.015
35
0.010
15
42
/
/
Example 4
0.035
0.13
1.75
0.008
0.0015
0.056
0.016
33
0.011
28
35
/
/
Example 5
0.038
0.16
...
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