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Cr

Ni

C

Si

Mn

P

S

Fe

19.0-23.0

30.0-35.0

0.10

1.00

1.50

0.030

0.015

¾l

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£m / MPa

£m0.2 / MPa

£_5 /%

100

425

140

160

300

390

95

115

500

360

80

100

600

300

75

95

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