| Outside Diameter |
Thickness |
Mass |
| mm |
mm |
kg/m |
| 21.30 |
1.80
2.00
2.60
3.20 |
0.866
0.952
1.20
1.43 |
| 26.90 |
1.80
2.00
2.30
2.60
3.20 |
1.11
1.23
1.40
1.56
1.87 |
| 33.70 |
2.00
2.30
2.60
3.20
4.00 |
1.56
1.78
1.99
2.41
2.93 |
| 42.40 |
2.30
2.60
3.20
3.60
4.00 |
2.27
2.55
3.09
3.44
3.79 |
| 48.30 |
2.30
2.60
2.90
3.20
3.60
4.00 |
2.61
2.93
3.25
3.56
3.97
4.37 |
| 60.30 |
2.30
2.60
2.90
3.20
3.60
4.0
4.50 |
3.29
3.7
4.11
4.51
5.03
5.55
6.19 |
|
| Outside Diameter |
Thickness |
Mass |
| mm |
mm |
kg/m |
| 76.10 |
2.60
2.90
3.20
3.60
4.50 |
5.24
5.75
6.44
7.11
7.95 |
| 88.90 |
2.90
3.20
4.00 |
6.15
6.76
8.38 |
| 114.30 |
3.20
3.60
4.50 |
8.77
9.83
12.20 |
| 139.70 |
3.60
4.00
4.50 |
12.10
13.40
15.00 |
| 163.50 |
4.50 |
17.80 |
|
| Tolerances |
| A. Outsider Diameter |
| S.No. |
Over
(mm) |
Upto
including (mm) |
Tolerance of Diameter (mm) |
| i |
- |
25.4 |
±0.15 |
| ii |
25.4 |
51.0 |
±0.18 |
| iii |
51.0 |
63.5 |
±0.25 |
| iv |
63.5 |
76.1 |
±0.25 |
| v |
76.1 |
88.9 |
±0.31 |
| vi |
88.9 |
101.6 |
±0.36 |
| vii |
101.6 |
114.3 |
±0.43 |
| viii |
114.3 |
152.4 |
±0.58 |
| ix |
152.4 |
168.3 |
±0.65 |
|
| |
| B. Thickness |
| The tolerance on thickness excluding the weld shall be ±10 Percent. |
| |
| C. Length |
| Unless otherwise specified 4 to 7 meter |
| |
| D. Chemical Composition |
| 1 |
Sulphur - |
0.045% Max |
| 2 |
Phosphorus - |
0.0045% Max |
| |
| E. Mechanical Properties |
Grade
Tensile |
Tensile
Strength
(Mpa) |
Yield Stress
Min.
(Mpa) |
Elongation % |
Less then 33.7
mm OD |
More then
33.7 mm OD |
| WT-210 |
330 |
210 |
12 |
20 |
| WT-240 |
410 |
240 |
10 |
15 |
|
| |
Note- Where the ratio of outside Diameter to thickness is greater then 33.1 the tolerance shall be as agreed to between the buyer andthe manufacturer. |
|
