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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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Welded Steel Tubes for Mine Liquid Service GB/T 14291 Q235A Q235B
Spec:
Material:Q235A Q235B Q345A Q345B
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:4-12m
Tolerance:
According to the following tables or customers’ request.
TABLE 1 Mechanical Property
| Grade | Tensile strength N/m | Lower yield strength N/m | Elongation A% Not less than | |
| D≤168.3 | D＞168.3 | |||
| Q235A,Q235B | 375 | 235 | 15 | 20 |
| Q295A,Q295B | 390 | 295 | 13 | 18 |
| Q345A,Q345B | 470 | 345 | 13 | 18 |
| Note : Tensile test arbitration time is based on longitudinal sample. | ||||
Table 2 Outer Diameter,Wall Thicknes,Theoretical Weight and Test Pressure
| Norminal Outer Diameter(D)/mm | Norminal Wall Thickness(S)/mm | Theoretical Weight/(kg/m) | Test Pressure/MPa | ||
| Q235A,Q235B | Q295A,Q295B | Q345A,Q345B | |||
| 21.3 | 2.5 | 1.16 | 15 | 15 | 15 |
| 21.3 | 3 | 1.35 | 15 | 15 | 15 |
| 21.3 | 3.5 | 1.54 | 15 | 15 | 15 |
| 25 | 2.5 | 1.39 | 15 | 15 | 15 |
| 25 | 3 | 1.63 | 15 | 15 | 15 |
| 25 | 3.5 | 1.86 | 15 | 15 | 15 |
| 25 | 4 | 2.07 | 15 | 15 | 15 |
| 26.9 | 2.5 | 1.50 | 15 | 15 | 15 |
| 26.9 | 3 | 1.77 | 15 | 15 | 15 |
| 26.9 | 3.5 | 2.02 | 15 | 15 | 15 |
| 26.9 | 4 | 2.26 | 15 | 15 | 15 |
| 31.8 | 2.5 | 1.81 | 15 | 15 | 15 |
| 31.8 | 3 | 2.13 | 15 | 15 | 15 |
| 31.8 | 3.5 | 2.44 | 15 | 15 | 15 |
| 31.8 | 4 | 2.74 | 15 | 15 | 15 |
| 33.7 | 2.5 | 1.92 | 15 | 15 | 15 |
| 33.7 | 3 | 2.27 | 15 | 15 | 15 |
| 33.7 | 3.5 | 2.61 | 15 | 15 | 15 |
| 33.7 | 4 | 2.93 | 15 | 15 | 15 |
| 38 | 2.5 | 2.19 | 15 | 15 | 15 |
| 38 | 3 | 2.59 | 15 | 15 | 15 |
| 38 | 3.5 | 2.98 | 15 | 15 | 15 |
| 38 | 4 | 3.35 | 15 | 15 | 15 |
| 40 | 2.5 | 2.31 | 15 | 15 | 15 |
| 40 | 3 | 2.74 | 15 | 15 | 15 |
| 40 | 3.5 | 3.15 | 15 | 15 | 15 |
| 40 | 4 | 3.55 | 15 | 15 | 15 |
| 42.4 | 2.5 | 2.46 | 15 | 15 | 15 |
| 42.4 | 3 | 2.91 | 15 | 15 | 15 |
| 42.4 | 3.5 | 3.36 | 15 | 15 | 15 |
| 42.4 | 4 | 3.79 | 15 | 15 | 15 |
| 48.3 | 2.5 | 2.82 | 14.6 | 15 | 15 |
| 48.3 | 3 | 3.35 | 15 | 15 | 15 |
| 48.3 | 3.5 | 3.87 | 15 | 15 | 15 |
| 48.3 | 4 | 4.37 | 15 | 15 | 15 |
| 51 | 2.5 | 2.99 | 13.8 | 15 | 15 |
| 51 | 3 | 3.55 | 15 | 15 | 15 |
| 51 | 3.5 | 4.10 | 15 | 15 | 15 |
| 51 | 4 | 4.64 | 15 | 15 | 15 |
| 51 | 4.5 | 5.16 | 15 | 15 | 15 |
| 57 | 2.5 | 3.36 | 12.4 | 15 | 15 |
| 57 | 3 | 4 | 14.8 | 15 | 15 |
| 57 | 3.5 | 4.62 | 15 | 15 | 15 |
| 57 | 4 | 5.23 | 15 | 15 | 15 |
| 57 | 4.5 | 5.83 | 15 | 15 | 15 |
| 60.3 | 2.5 | 3.56 | 11.7 | 14.7 | 15 |
| 60.3 | 3 | 4.24 | 14 | 15 | 15 |
| 60.3 | 3.5 | 4.90 | 15 | 15 | 15 |
| 60.3 | 4 | 5.55 | 15 | 15 | 15 |
| 60.3 | 4.5 | 6.19 | 15 | 15 | 15 |
| 63.5 | 2.5 | 3.76 | 11.1 | 13.9 | 15 |
| 63.5 | 3 | 4.48 | 13.3 | 15 | 15 |
| 63.5 | 3.5 | 5.18 | 15 | 15 | 15 |
| 63.5 | 4 | 5.87 | 15 | 15 | 15 |
| 152.4 | 5.0 | 18.18 | 9.3 | 11.6 | 13.6 |
| 152.4 | 5.5 | 19.93 | 10.2 | 12.8 | 14.9 |
| 152.4 | 6.0 | 21.66 | 11.1 | 13.9 | 15.0 |
| 152.4 | 6.5 | 23.39 | 12.0 | 15.0 | 15.0 |
| 152.4 | 7.0 | 25.10 | 13.0 | 15.0 | 15.0 |
| 159 | 4.0 | 15.29 | 7.1 | 8.9 | 10.4 |
| 159 | 4.5 | 17.15 | 8.0 | 10.0 | 11.7 |
| 159 | 5.0 | 18.99 | 8.9 | 11.1 | 13.0 |
| 159 | 6.0 | 22.64 | 10.6 | 13.4 | 15.0 |
| 159 | 6.5 | 24.45 | 11.5 | 14.5 | 15.0 |
| 159 | 7.0 | 26.24 | 12.4 | 15.0 | 15.0 |
| 159 | 8.0 | 29.79 | 14.2 | 15.0 | 15.0 |
| 159 | 9.0 | 33.29 | 15.0 | 15.0 | 15.0 |
| 168.3 | 4.5 | 18.18 | 7.5 | 9.5 | 11.1 |
| 168.3 | 5.0 | 20.14 | 8.4 | 10.5 | 12.3 |
| 168.3 | 5.5 | 22.08 | 9.2 | 11.6 | 13.5 |
| 168.3 | 6.0 | 24.02 | 10.1 | 12.6 | 14.8 |
| 168.3 | 6.5 | 25.94 | 10.9 | 13.7 | 15.0 |
| 168.3 | 7.0 | 27.85 | 11.7 | 14.7 | 15.0 |
| 168.3 | 8.0 | 31.63 | 13.4 | 15.0 | 15.0 |
| 168.3 | 9.0 | 35.36 | 15.0 | 15.0 | 15.0 |
| 177.8 | 4.5 | 19.23 | 7.1 | 9.0 | 10.5 |
Processing:High frequency resistance welding
Technical Delivery Conditions:Heat treatment
Widely used in the field of:Pulp delivery,gas draining ,mine drainage
Product Images:
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