Welded pipe supplier | Carbon Steel Pipe Suppliers
how to choose the right welded Pipe Supplier for your carbon steel Pipe needs
When it comes to choosing the right welded pipe supplier for your carbon steel pipe needs, it is important to take the time to research and compare different Suppliers. There are many factors to consider when selecting a supplier, such as quality, Price, delivery time, and customer service. Here are some tips to help you find the right welded pipe supplier for your needs.
1. Quality: Quality should be the top priority when selecting a welded pipe supplier. make sure to ask for samples of the supplier’s products and inspect them for any defects. It is also important to ask about the supplier’s quality control processes and certifications.
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2. Price: Price is an important factor when selecting a welded pipe supplier. Make sure to compare prices from different suppliers and look for any discounts or special offers.
| Tensile and hardness requirements | |||||||||
| Grade | yield strength MPa | Tensile Strength | Hardness a,c | Specified wall thickness | Allowable Hardness Variation b | ||||
| type | Total Elongation Under Load | min MPa | max | ||||||
| min | max | HRC | HBW | mm | HRC | ||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| h40 | — | 0.5 | 276 | 552 | 414 | — | — | — | — |
| J55 | — | 0.5 | 379 | 552 | 517 | — | — | — | — |
| K55 | — | 0.5 | 379 | 552 | 655 | — | — | — | — |
| N80 | 1 | 0.5 | 552 | 758 | 689 | — | — | — | — |
| N80 | Q | 0.5 | 552 | 758 | 689 | — | — | — | — |
| R95 | — | 0.5 | 655 | 758 | 724 | — | — | — | — |
| L80 L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 | — | — |
| L80 | 9Cr 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | — | — |
| 0.5 | 552 | 655 | 655 | 23 | 241 | — | — | ||
| C90 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | £12.70 | 3 |
| 12.71 to 19.04 | 4 | ||||||||
| 19.05 to 25.39 | 5 | ||||||||
| ³ 25.40 | 6 | ||||||||
| T95 | 1 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | £12.70 | 3 |
| 12.71 to 19.04 | 4 | ||||||||
| 19.05 to 25.39 | 5 | ||||||||
| ³ 25.40 | 6 | ||||||||
| C110 | — | 0.7 | 758 | 828 | 793 | 30 | 286 | £12.70 | 3 |
| 12.71 to 19.04 | 4 | ||||||||
| 19.05 to 25.39 | 5 | ||||||||
| ³ 25.40 | 6 | ||||||||
| P110 | — | 0.6 | 758 | 965 | 862 | — | — | — | — |
| Q125 | 1 | 0.65 | 862 | 1034 | 931 | b | — | £12.70 | 3 |
| 12.71 to 19.04 19.05 | 4 | ||||||||
| 5 | |||||||||
| a In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method. | |||||||||
| b No hardness limits are specified, but the maximum variation is restricted as a manufacturing control in accordance with 7.8 and 7.9. | |||||||||
| c For through-wall hardness tests of grades L80 (all types), C90, T95 and C110, the requirements stated in HRC scale are for maximum mean hardness number. | |||||||||
| Calculated Mass c | |||||||||||
| Nominal linear Mass T& C b,c | Wall Thick- ness | em, Mass Gain or Loss Due to End finishing d | |||||||||
| Labels a | Outside diameter | Inside Diameter | Drift Diameter | Plain- end | kg | ||||||
| Round Thread | Buttress Thread | ||||||||||
| wpe | |||||||||||
| D | kg/m | t | D | mm | kg/m | Short | Long | RC | SCC | ||
| mm | mm | mm | |||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 10 3/4 | 32.75 | 273.05 | 48.74 | 7.09 | 258.9 | 254.91 | 46.5 | 13.94 | — | — 15.38 | — 3.03 |
| 10 3/4 | 40.5 | 273.05 | 60.27 | 8.89 | 255.3 | 251.31 | 57.91 | 11.91 | — | 14.21 | 1.86 |
| 10 3/4 | 45.5 | 273.05 | 67.71 | 10.16 | 252.7 | 250.82 e 248.77 246.23 246.33 | 65.87 | 11 | — | 14.21 | 1.86 |
| 10 3/4 | 45.5 | 273.05 | 67.71 | 10.16 | 252.7 | 244.48 e | 65.87 | 11 | — | 13.05 | 0.7 |
| 10 3/4 | 51 | 273.05 | 75.9 | 11.43 | 250.2 | 244.48 e 243.94 243.94 241.40 241.40 238.86 238.86 234.95 231.80 228.60 | 73.75 | 10.11 | — | 13.05 | 0.7 |
| 10 3/4 | 51 | 273.05 | 75.9 | 11.43 | 250.2 | 73.75 | 10.16 f | — | 12.25 | –0.09 | |
| 10 3/4 | 55.5 | 273.05 | 82.59 | 12.57 | 247.9 | 80.75 | 9.3 | — | 12.01 | –0.34 | |
| 10 3/4 | 55.5 | 273.05 | 82.59 | 12.57 | 247.9 | 80.75 | 9.35 f | — | 12.25 | –0.09 | |
| 10 3/4 | 55.5 | 273.05 | 82.59 | 12.57 | 247.9 | 80.75 | 9.3 | — | 12.01 | –0.34 | |
| 10 3/4 | 55.5 | 273.05 | 82.59 | 12.57 | 247.9 | 80.75 | 9.35 f | — | 11.07 | — | |
| 10 3/4 | 60.7 | 273.05 | 90.33 | 13.84 | 245.4 | 88.47 | 8.42 | — | 10.87 | — | |
| 10 3/4 | 60.7 | 273.05 | 90.33 | 13.84 | 245.4 | 88.47 | 8.47 f | — | 9.98 | — | |
| 10 3/4 | 65.7 | 273.05 | 97.77 | 15.11 | 242.8 | 96.12 | 7.54 | — | 9.74 | — | |
| 10 3/4 | 65.7 | 273.05 | 97.77 | 15.11 | 242.8 | 96.12 | 7.60 f | — | — | — | |
| 10 3/4 | 73.2 | 273.05 | 108.93 | 17.07 | 238.9 | 107.76 | — | — | — | — | |
| 10 3/4 | 79.2 | 273.05 | 117.86 | 18.64 | 235.8 | 116.95 | — | — | — | — | |
| 10 3/4 | 85.3 | 273.05 | 126.94 | 20.24 | 232.6 | 126.19 | — | — | |||
| 11 3/4 | 42 | 298.45 | 62.5 | 8.46 | 281.5 | 279.40 e 277.50 275.44 272.39 | 62.56 | 13.27 | — | — | — |
| 11 3/4 | 42 | 298.45 | 62.5 | 8.46 | 281.5 | 269.88 e | 62.56 | 13.27 | — | — 16.04 | — |
| 11 3/4 | 47 | 298.45 | 69.94 | 9.52 | 279.41 | 269.88 e | 67.83 | 12.42 | — | 14.5 | — |
| 11 3/4 | 54 | 298.45 | 80.36 | 11.05 | 276.4 | 269.65 | 78.32 | 11.23 | — | 13.12 | — |
| 11 3/4 | 60 | 298.45 | 89.29 | 12.42 | 273.6 | 269.65 e | 87.61 | 10.17 | — | 13.12 | — |
| 11 3/4 | 60 | 298.45 | 89.29 | 12.42 | 273.6 | 269.88 e 267.36 264.92 | 87.61 | 9.77 f | — | 13.12 | — |
| 11 3/4 | 60 | 298.45 | 89.29 | 12.42 | 273.6 | 87.61 | 10.17 | — | 13.12 | — | |
| 11 3/4 | 60 | 298.45 | 89.29 | 12.42 | 273.6 | 87.61 | 9.77 f | — | — | — | |
| 11 3/4 | 65 | 298.45 | 96.73 | 13.56 | 271.3 | 95.27 | — | — | — | — | |
| 11 3/4 | 65 | 298.45 | 96.73 | 13.56 | 271.3 | 95.27 | — | — | — | — | |
| 11 3/4 | 71 | 298.45 | 105.66 | 14.78 | 268.9 | 103.4 | — | — | — | ||
3. Delivery Time: Delivery time is an important factor when selecting a welded pipe supplier. Make sure to ask about the supplier’s delivery times and whether they offer any expedited shipping options.
4. Customer Service: Customer service is an important factor when selecting a welded pipe supplier. Make sure to ask about the supplier’s customer service policies and whether they offer any additional services such as technical support.
By taking the time to research and compare different welded pipe suppliers, you can ensure that you select the right supplier for your carbon steel pipe needs.
