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                                   GL D420 STEEL PLATE

 

 

Gangsteel is specialized in supplying GL extra high strength steel plate in GL Grade D420. For more information of Grade D420 steel plate, please check them in following:

 

GL D420 extra High Strength Chemical Composition Tempering and Quenching

Grade

The Element Max (%)

C

Si

Mn

P

S

Al(min)

N

GL D420

0.20

0.55

1.70

0.030

0.030

0.015

0.020

Crack Sensitivity:  Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent:  Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

 

 

GL D420 extra High strength property in Tempering and Quenching

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

GL D420

Min Mpa

Mpa

Min  %

-20

J

J

420

530-680

18%

28

        42

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

 

Boiler steel plates | Alloy steel plates | High strength plate| Carbon steel plate | Stainless steel plate

 

 

Equivalent steel grade of GL D420

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV D420

GL D420

LR/DH42

BV/D420

CCS/D420

K D43

R D43

RI/D420

 

 

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