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square steel pipes
Plain round steel bars
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Shell
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Plain round steel bars

Being used for constructions of civil works, resident houses, schools and buildings, etc...

 

Categories

Diameter (mm)

Cross section area (cm2)

Unit weight (kg/m)

D10

10.0

0.785

0.617

D12

12.0

1.131

0.888

D14

14.0

1.540

1.210

D16

16.0

2.010

1.580

D18

18.0

2.540

2.000

D20

20.0

3.140

2.470

D22

22.0

3.800

2.980

D25

25.0

4.910

3.850

D28

28.0

6.160

4.830

D32

32.0

8.040

6.310

D36

36.0

10.180

7.990

D40

40.0

12.570

9.870

BASES TO DETERMINE PRODUCT QUALITY
Chemical Composition

Standard 
Grade 
Chemical composition 
C
Si
Mn
P
S
JIS G3112
SD 295 A
SD 390
SD 490
-
-
-
0.05 Max
0.05 Max
0.29 Max
0.55 Max
1.80 Max
0.04 Max
0.04 Max
0.32 Max
0.55 Max
1.80 Max
0.04 Max
0.04 Max
TCVN 1651-85
TCVN 1765-75
CT 38
0.14 ÷ 0.22
0.12 ÷ 0.30
0.40 ÷ 0.65
0.04 Max
0.05 Max
CT 38n
0.05 ÷ 0.17
CT 51
0.28 ÷ 0.37
0.15 ÷ 0.35
0.50 ÷ 0.80
0.04 Max
0.05 Max
CT 51n
0.05 ÷ 0.17
ASTM A615
A 615M
Gr 40
-
-
-
0.06 Max
0.04 Max
Gr 60
0.30 Max
0.50 Max
1.50 Max
0.04 Max
0.04 Max
BS 4449
(Reference)
Gr 250
0.25 Max
-
0.06 Max
0.06 Max
Gr 460
0.25 Max
-
0.05 Max
0.05 Max

Notes:

- Complying with standard TCVN 1615-85
- Complying with the standard JIS G 3112

 

 
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