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NK A70 shipbuilding steel plate

NK A70 bulb flat steel bar specifications: 80× 5/6, 100× 7/8, 120× 6/7/8, 140× 7/8/10, 160× 7/8/9/11, 180× 8/9/10/11, 200× 9/10/1112, 220× 10/11/12, 240× 10/11/12, 260× 10/11/12, 280× 11/12/13, 300× 11/12/13, 320× 12/13/14, 340× 12/13/14, 370× 13/14/15, 400× 14/15/16, 430× 14/15/17/19/20

NK A70 bulb flat steel bar chemical composition:

Grade

C max

Si

Mn

max

P max

S max

Als

N max

Nb max

V

max

Ti

max

B

max

A70

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.02-0.05

0.04-0.10

0.02

0.005

NK A70 bulb flat steel bar Mechanical Property:

Grade

Mechanical Property

Charpy V Impact Test

Yield Min Mpa

Tensile

Mpa

Elongation

Min %

Degree

Energy 1 (J)

Energy 2(J)

A70

690

770-940

14%

0

46

69

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