Brand Names

 Component of Impurities  max  (%)

Ti

Fe

C

N

H

O

Gr.1

balance

0.20

0.08

0.03

0.010

0.18

Gr.2

balance

0.30

0.08

0.03

0.010

0.25

Gr.3

balance

0.30

0.08

0.05

0.010

0.35

Gr.4

balance

0.50

0.08

0.05

0.010

0.40

Grade

Conditions

σb
MPa(Ksi)

σ0.2
MPa(Ksi)

δ4D(%)

Ψ(%)

Gr .1

  annealed

241(35)

172(25)

24

30

Gr .2

345(50)

276(40)

20

30

Gr. 3

448(65)

379(55)

18

30

Gr .4

552(80)

483(70)

15

25