Superhigh-strength cold rolling band steel with anti-tensile strength above 880Mpa and its production
A technology of 880mpa, cold-rolled strip steel, applied in the direction of manufacturing tools, heat treatment process control, furnaces, etc., can solve the problems of strength decrease, increase alloy element content, increase cost, etc. The effect of generation
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[0053] The following are specific descriptions of Examples 1-7 of the present invention.
[0054] The concrete chemical composition of example 1-7 is shown in Table 1:
[0055] The chemical composition performance of table 1 example 1-7, Wt%
[0056] make up
No
C
Si
mn
P
S
Al
Ti
Nb
N
B
1
0.16
0.4
2.0
0.01
0.005
0.02
0.05
0.015
0.0032
0.004
2
0.17
0.5
2.5
0.01
0.018
0.044
0.04
0.03
0.0037
0.0045
3
0.2
0.2
2.3
0.019
0.005
0.05
0.08
0.02
0.0031
0.006
4
0.14
1.0
1.94
0.011
0.008
0.051
0.06
0.04
0.004
0.005
5
0.24
1.2
1.5
0.012
0.006...
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