Products / STEEL BOX / BLACK STEEL BOX - GALVANIZED STEEL BOX



Black steel box - Galvanized steel box A500Gr.B – Gr.C, STKR400, STKR490, SS400, A36, S235JR, S275JR, SS490

 

Grade

A500 GR.B - A500 GR.C - STKR400 - STKR490 - SS400 - A36 - S235JR - S237JR - Q345B - SS490

Usage

Black steel boxes, galvanized steel boxes are widely used in electrical construction, chemical, shipbuilding, ports, automotive, petroleum transportation, transportation ...

Standard

ASTM - JIS G3466 - KS D 3507 - BS 1387 - JIS G3452 - JIS G3101 - JIS G3106

Origin

Japan - China - Korea - Vietnam - Taiwan - Russia

Specifications

High :        2.5mm - 16mm

Perimeter: 50 x 25 mm - 300 x 200 mm

Length : 6000mm

 


Chemical composition % (max)

Grade

C

Si

MN

P

S

V

CU

NB

Ni

Mo

Cr

Ti

Al

N

C0

A36

0.26
 

0.40
 

 

0.050
 

0.040
 


>0.2

 

   
 

A500 GR.C

0.23
 

 

1.35
 

0.035
 

0.035
 


0.200

     
 

16Mn

0.12-0.20
 

0.20 -0.55
 

1.20 -1.60
 

0.045
 

0.045
 


 


 

 
 
 

Q235B

0.12-0.20
 

0.30
 

0.30-0.70
 

0.045
 

0.045
 


 

       

 

Physical properties

Grade

Liquid limit
δc(MPA)

Tensile strength
δb(MPA)

Elongation
%

A36

250

400 - 552 23

A500 GR.C

345

430 21

16Mn

345

510 - 600

22

Q235B

215

335 - 410

31

 

 


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