Grade
|
Chemical Composition
|
Mechanical Properties
|
||||||
C
|
Mn
|
Si
|
S
|
P
|
Yield
|
Tensile
|
Elongati
|
|
Strength Mpa
|
Strenth Mpa
|
-on %
|
||||||
Q195
|
0.06-0.12
|
0.25-0.50
|
≤0.30
|
≤0.045
|
≤0.05
|
≥195
|
315-430
|
≥33
|
Q215
|
0.09-0.15
|
0.25-0.55
|
≤0.30
|
≤0.05
|
≤0.045
|
≥217
|
335-450
|
≥27
|
Q235
|
0.12-0.20
|
0.30-0.67
|
≤0.30
|
≤0.045
|
≤0.04
|
≥235
|
375-500
|
≥26
|
Q345
|
≤0.20
|
1.00-1.60
|
≤0.55
|
≤0.04
|
≤0.04
|
≥345
|
470-630
|
≥22
|
Outside Diameter
|
Wall Thickness
|
||
DN
|
Inch
|
mm
|
mm
|
15
|
1/2"
|
20~21.3
|
0.95~2.77
|
20
|
3/4"
|
25~26.9
|
1.1~2.87
|
25
|
1"
|
32~33.7
|
1.1~4.0
|
32
|
1 1/4"
|
40~42.4
|
1.1~4.0
|
40
|
1 1/2"
|
47~48.3
|
1.5~7.0
|
50
|
2"
|
58~60.3
|
1.8~7.0
|
65
|
2 1/2"
|
73~76.1
|
2.0~7.0
|
80
|
3"
|
87~88.9
|
2.2~8.0
|
90
|
3 1/2"
|
101.6~102.1
|
2.2~9.0
|
100
|
4"
|
113~114.3
|
2.2~9.0
|
125
|
5"
|
140~141.3
|
2.5~10.0
|
150
|
6"
|
165~168.3
|
2.5~10.0
|
200
|
8"
|
216~219.1
|
2.75~12.0
|
250
|
10"
|
272.8~273.2
|
5.0~13.75
|
300
|
12"
|
323.8~325
|
5.5~13.75
|
350
|
14"
|
355.6~356
|
5.5~13.75
|
400
|
16"
|
406~406.4
|
5.75~13.75
|
450
|
18"
|
457~457.2
|
5.75~17.75
|
500
|
20"
|
507.9~508.1
|
5.75~17.75
|
600
|
24"
|
609~610
|
5.75~17.75
|