Airíonna Gráid Ábhar Tíotáiniam

ASTM Uimh.

Fe max

Ó max

N max

C max

H max

Pd

Al

V

Mo

Ni

Fadú

0.2% Neart Toradh Min

Neart Teanntachta Íosta

wt%

wt%

wt%

wt%

wt%

wt%

wt%

wt%

wt%

wt%

%

MPa

MPa

Grád 1

0.2

0. 18

0. 03

0.1

0. 015

24

170

240

Grád 2

0.3

0.25

0. 03

0.1

0. 015

20

280

345

Grád 3

0.25

0.3

0. 05

0.1

0. 015

18

380

450

Grád 4

0.5

0.4

0. 05

0.1

0. 015

15

480

550

Grád 5

0.4

0.2

0. 05

0.1

0. 015

5.5-
6.7

10

830

900

Grád 6

0.1

16

780

820

Grád 7

0.3

0.25

0. 03

0.1

0. 015

0,12-
0,25

20

280

340

Grád 9

0.25

0. 15

0. 02

0. 05

0. 015

2,5-
3,05

15

550

650

Grád 11

0.2

0. 18

0. 03

0.1

0. 015

0. 12-
0.25

24

170

240

Grád 12

0.3

0.25

0. 03

0.1

0. 015

0.3

0.8

25

414

499

Grád 13

0.5

Grád 14

0.5

Grád 15

0.5

Grád 16

0. 04-
0. 08

27

345

485

Grád 17

0. 18

0. 04-
0. 08

35

206

345

Grád 18

0. 04-
0. 08

3

2.5

4

Grád 19

3

8

4

Grád 20

0. 04-
0. 08

3

8

4

Grád 21

3

15

15-8

880

915