Tianjin Weiming Industrial & Trading Co. Ltd.
24th Floor, Tianxing River Front Square
No. 81, 11-Jing Road, Tianjin, China (300171)
Tel: 0086 (22) 24109310 / 24152505
                         24221670
Fax: 0086 (22) 24152385
Email: waiming@wmitc.com

Hot-dip Galvanized Steel Pipe

Usage: Widely used in the fields of construction, low-pressure liquid transportation, scaffolds and etc.
Main steel grade:  Q195, Q215, Q235
Standard: ASTM A53, BS1387:1985, DIN2440-1978, GB/T3091-2001

 
Steel
Grade
Chemical Composition
Mechanical Properties
C(%)
Si(%)
(
)
Mn(%)
P(%)
(
)
S(%)
(
)
Ni(%)
(
)
Cr(%)
(
)
Cu(%)
(
)
Yield Strength (Mpa)
(
)
Tensile Strength
(Mpa)
Elongation
(%)
Q195
0.06-0.12
0.3
0.25-0.50
0.045
0.05
0.03
0.03
0.03
195
315-390
32
Q215
0.09-0.15
0.3
0.25-0.50
0.045
0.05
0.03
0.03
0.03
215
335-410
26
Q215B
0.09-0.15
0.3
0.25-0.50
0.045
0.045
0.03
0.03
0.03
215
335-410
26
Q235A
0.14-0.22
0.3
0.3-0.65
0.045
0.045
0.03
0.03
0.03
235
375-460
21
Q235B
0.14-0.22
0.3
0.3-0.70
0.045
0.045
0.03
0.03
0.03
235
375-460
21
Q235C
0.18
0.3
0.35-0.80
0.04
0.04
0.03
0.03
0.03
235
375-460
21
Q235D
0.17
0.3
0.35-0.80
0.035
0.035
0.03
0.03
0.03
235
375-460
21
 
BS1387:1985 Light (Hot-dip Galvanized Pipe)
Nominal Diameter
Outside Diameter
Wall Thickness
Theoretical Weight(6M/pc)
Max.
Min.
Max.
Min.
Plain End
Screwed and Socketed
inch
mm
inch
inch
mm
mm
inch
mm
kg/m
kg/pc
kg/pc
1/2
15
0.843
0.827
21.4
21.0
0.080
2.0
0.947
5.682
5.691
3/4
20
1.059
1.039
26.9
26.4
0.091
2.3
1.38
8.28
8.29
1
25
1.331
1.307
33.8
33.2
0.102
2.6
1.98
11.88
11.90
1- 1/4
32
1.673
1.650
42.5
41.9
0.102
2.6
2.54
15.24
15.27
1-1/2
40
1.906
1.882
48.4
47.8
0.114
2.9
3.23
19.38
19.42
2
50
2.370
2.346
60.2
59.6
0.114
2.9
4.08
24.48
24.55
2-1/2
65
2.992
2.961
76.0
75.2
0.126
3.2
5.71
34.26
34.38
3
80
3.492
3.461
88.7
87.9
0.126
3.2
6.72
40.32
40.49
4
100
4.484
4.449
113.9
113.0
0.142
3.6
9.75
58.50
58.75
 
BS1387:1985 Medium (Hot-dip Galvanized Pipe)
Nominal Diameter
Outside Diameter
Wall Thickness
Theoretical Weight(6M/pc)
Max.
Min.
Max.
Min.
Plain End
Screwed and Socketed
inch
mm
inch
inch
mm
mm
inch
mm
kg/m
kg/pc
kg/pc
1/2
15
0.854
0.531
21.7
21.1
0.104
2.6
1.210
7.260
7.27
3/4
20
1.071
1.047
27.2
26.6
0.104
2.6
1.56
9.36
9.37
1
25
1.347
1.315
34.2
33.4
0.128
3.2
2.41
14.46
14.48
1- 1/4
32
1.689
1.658
42.9
42.1
0.128
3.2
3.10
18.60
18.63
1-1/2
40
1.921
1.890
48.8
48.0
0.128
3.2
3.57
21.42
21.46
2
50
2.349
2.354
60.8
59.8
0.144
3.6
5.03
30.18
30.25
2-1/2
65
3.016
2.969
76.6
75.4
0.144
3.6
6.43
38.58
38.7
3
80
3.524
3.469
89.5
88.1
0.160
4.0
8.37
50.22
50.39
4
100
4.524
4.461
114.9
113.3
0.175
4.5
12.20
73.20
73.5
5
125
5.535
5.461
140.6
138.7
0.197
5.0
16.60
99.60
100.1
6
150
6.539
6.461
166.1
164.1
0.197
5.0
19.70
118.20
118.8
 
BS1387:1985 Heavy (Hot-dip Galvanized Pipe)
Nominal Diameter
Outside Diameter
Wall Thickness
Theoretical Weight(6M/pc)
Max.
Min.
Max.
Min.
Plain End
Screwed and Socketed
inch
mm
inch
inch
mm
mm
inch
mm
kg/m
kg/pc
kg/pc
1/2
15
0.854
0.531
21.7
21.1
0.128
3.2
1.44
8.64
8.70
3/4
20
1.071
1.047
27.2
26.6
0.128
3.2
1.87
11.22
11.28
1
25
1.347
1.315
34.2
33.4
0.160
4.0
2.94
17.64
17.76
1- 1/4
32
1.689
1.658
42.9
42.1
0.160
4.0
3.80
22.80
22.98
1-1/2
40
1.921
1.890
48.8
48.0
0.160
4.0
4.38
26.28
26.52
2
50
2.349
2.354
60.8
59.8
0.175
4.5
5.19
31.14
31.56
2-1/2
65
3.016
2.969
76.6
75.4
0.175
4.5
7.93
47.58
48.30
3
80
3.524
3.469
89.5
88.1
0.197
5.0
10.30
61.80
63.00
4
100
4.524
4.461
114.9
113.3
0.213
5.4
14.50
87.00
89.40
5
125
5.535
5.461
140.6
138.7
0.213
5.4
17.90
107.40
110.40
6
150
6.539
6.461
166.1
164.1
0.213
5.4
21.30
127.80
137.40
 
DIN 2440-1978 Threaded Steel Pipes
Nominal Diameter
Outside
diameter
mm
Wall
thickness
mm
Weight
Threading
DN
inch
Plain end
kg/m
coupled
kg/m
Thread Diameter
mm
Thread pitch
number per inch
15
1/2
21.3
2.65
1.22
1.23
20.955
14
20
3/4
26.9
2.65
1.58
1.59
26.441
14
25
1
33.7
3.25
2.44
2.46
33.249
11
32
1-1/4
42.4
3.25
3.14
3.17
41.910
11
40
1-1/2
48.3
3.25
3.61
3.65
47.803
11
50
2
60.3
3.65
5.10
5.17
59.614
11
65
2-1/2
76.1
3.65
6.51
6.63
75.148
11
80
3
88.9
4.05
8.47
8.64
87.884
11
100
4
114.3
4.5
12.10
12.4
113.030
11
125
5
139.7
4.85
16.20
16.7
138.430
11
150
6
165.1
4.85
19.20
19.8
163.830
11

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