Steels_ Metallurgy and Applications, Third Edition

52 Steels: Metallurgy and Applications

1.4

=

m > 1.2

t,,,, E

1.0

50

.o_ C

~ 48

w ~^46

.~ 44

340

.e_ ~ 320

I..-

260

240

r ~ 220

>" 200

180

0

....o---'6 "--

s ~

0"-- OS , t

o0

, i ,11

..0-- ~....o

9 -- , 9

_. (^9) , , ,
~176 ...o
o.--,-o-., e~044 wt% C
0.018 wt% C~ 9
~" 0%~' 0...0.. .0
,~ ~ = , I, j 9 9
600 680 760
Simulated coiling temperature (~
Figure 1.54 Effect of coiling temperature on the mechanical properties of alumi-
nium-killed steel containing 0.018 or 0.044 wt% C annealed at 700*C for 1.5 min (After
Ono et al. 87)

~
1.6
1.4
1.2
1.0
0.018 wt% C
0.044 wt% C
50 .... 70 I ,, ...... 90
Cold reduction (%)
Figure 1.55 Variation of rm value with cold reduction for aluminium-killed steel
containing 0.018 or 0.044 wt% C annealed at 700*C for 1.5 min (After Ono et al. 87)