Grade

ELEMENT  COMPOSITION , %

Ti

AL

V

Fe

C

N

H

O

Others,max

Grade 1

Balance

-

-

0.20

0.08

0.03

0.015

0.18

0.40

Grade 2

Balance

-

-

0.30

0.08

0.03

0.015

0.25

0.40

Grade 3

Balance

-

-

0.30

0.08

0.05

0.015

0.35

0.40

Grade 4

Balance

-

-

0.50

0.08

0.05

0.015

0.40

0.40

Grade 5

Balance

5.5-6.75

3.5-4.5

0.40

0.08

0.05

0.015

0.20

0.40

Grade 7

Balance

Pd 0.12-0.25

0.30

0.08

0.03

0.015

0.25

0.40

Grade 9

Balance

2.5-3.5

2.0-3.0

0.25

0.08

0.03

0.015

0.15

0.40

Grade 12

Balance

Mn 0.2-0.4

Ni 0.6-0.9

0.30

0.08

0.03

0.015

0.25

0.40