Gangsteel is specialized in supplying GL extra high strength steel plate in GL Grade A420. For more information of Grade A420 steel plate, please check them in following:

 

 

GL-A420 extra High Strength Chemical Composition Tempering and Quenching

Grade

The Element Max (%)

C

Si

Mn

P

S

Al(min)

N

GL-A420

0.21

0.55

1.70

0.035

0.035

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-A420 extra High strength property in Tempering and Quenching

Grade

Mechanical Property

Charpy V Impact Test

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

GL-A420

Min Mpa

Mpa

Min  %

0

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-A420

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV A420

GL-A420

LR/AH42

BV/A420

CCS/A420

K A43

R A43

RI/A420

 

 

If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes.

The related steel grade:GL-D420, GL-E420, GL-F420

 

 

 

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