NK E63 marine steel plate

Sep 11, 2025 Leave a message

NK E63 marine steel plate are specialized materials designed for use in the construction of ships and other marine structures. The plate possess a unique combination of chemical composition, mechanical properties, and heat treatment characteristics that make them suitable for a wide range of marine applications.


The chemical composition of NK E63 steel plate is carefully balanced to ensure optimal performance in marine environments. The plates typically contain carbon, silicon, manganese, phosphorus, sulfur, chromium, molybdenum, nickel, and copper in specific proportions. This composition provides the necessary strength, toughness, and corrosion resistance required for marine use.

NK E63 extraStrength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

B

N

NK E63

0.20

0.55

1.70

0.030

0.030

0.006

0.020

Nb

V

Ti

Cu

Cr

Ni

Mo

-

0.10

-

0.50

1.00

-

0.60

 

In terms of mechanical properties, NK E63 steel plate exhibit high yield strength and tensile strength, allowing them to withstand the demands of harsh marine conditions. The plate also have excellent toughness, making able to absorb high-impact forces without fracturing.

NK E63 extra strength property

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

Min Mpa

Mpa

Min %

-40

62

41

NK E63

620

720-890

15

Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

 

 

Equivalent steel grade of NK E63

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV E620

GL E620

LR/EH62

BV/E620

CCS/E620

K E63

R E63

RI E620

 

 

Impact testing is a crucial aspect of ensuring the quality and reliability of NK E63 steel plate. The tests are performed to assess the plate' ability to withstand low-temperature impacts, which is essential for their performance in cold marine environments. The plates typically meet or exceed industry standards for impact resistance, ensuring their suitability for use in a wide range of applications.

 

NK E63 steel plate find their primary application in the construction of ships and other marine vessels. Their high strength and toughness make them ideal for use in hull structures, decks, and other critical components. These plates are also commonly used in the construction of offshore platforms, docks, and other marine infrastructure.