EFW Pipes
Trident Enterprises are among the pre-eminent organizations, involved in manufacturers, suppliers, stockists and exporter EFW Pipes. Available in different lengths, thicknesses and sizes, these EFW Pipes are widely demanded by various industries like food & beverage, chemical, petrochemical, pharmaceutical and cosmetics. In addition to this, we provide tailor-made solution for all our offered EFW Pipes as per customers’ requirements.
What is EFW (ELECTRIC FUSION WELDED) Pipes?
A combination of specially designed equipments like 1600MT press brake machine, multiple rolls bending machine, welding installations for outside, inside and circumferential welding, size calibrating press, solution annealing furnace and a host of other related machinery, is employed to manufacture pipes used in critical applications like refineries, fertilizers, LNG terminals, cross country pipe lines etc.
Specification
| Type | EFW(ELECTRIC FUSION WELDED) Pipes |
| Standard | ASTM A312, ASTM A358, ASTM A813, ASTM A814 |
| Range | 15 NB UP TO 600 NB IN SCH 5S , 10S ,10, 20 , 40S , 40 , STD , 60 , 80S , 80 , XS , 100 , 120 , 140 , 160 & XXS |
| Size | OD (6-710) x (0.9-40) x MAX 13000mm |
| Outer Diameter | 21.3 to 712mm |
| Length | SINGLE RANDOM, DOUBLE RANDOM & CUT LENGTH |
| Delivery time | up to the order quantity |
| Order | Accept custom order |
| Quality Assurance | They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products. |
| Marking & Packing | Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases.On special requests we can also, make custom marking on our products. |
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| Test Certificates | Manufacturer Test Certificate / Laboratory Test Certificate from Govt. Approved Lab. / Under Third Party Inspection with Excise Gate Pass to available benefit. |
Nominal Wall Thickness:
- Nominal Wall Tolerance Plus 12.5%, Minus 12.5%
- These do not conform to the American National Standard for Welded and Seamless Wrought Steel Pipe
(ANSI B 36.10 – 1979)
| NPS Designator | Outside Diameter in. | Schedule 10S in. | Schedule 40S in. | Schedule 80S in. | Schedule 160 in. | Schedule XX in. |
|---|---|---|---|---|---|---|
| 1/4 | 0.540 | 0.065 | 0.088 | 0.119 | ||
| 3/8 | 0.675 | 0.065 | 0.091 | 0.126 | ||
| 1/2 | 0.840 | 0.083 | 0.109 | 0.147 | .188 | .294 |
| 3/4 | 1.050 | 0.083 | 0.113 | 0.154 | .218 | .308 |
| 1.0 | 1.315 | 0.109 | 0.133 | 0.179 | .250 | .358 |
| 1 1/4 | 1.660 | 0.109 | 0.140 | 0.191 | .250 | .382 |
| 1 1/2 | 1.900 | 0.109 | 0.145 | 0.200 | .281 | .400 |
| 2 | 2.375 | 0.109 | 0.154 | 0.218 | .343 | .436 |
| 2 1/2 | 2.875 | 0.120 | 0.203 | 0.276 | .375 | .552 |
| 3 | 3.500 | 0.120 | 0.216 | 0.300 | .438 | .600 |
| 3 1/2 | 4.000 | 0.120 | 0.226 | 0.318 | .636 | |
| 4 | 4.500 | 0.120 | 0.237 | 0.337 | .534 | .674 |
| 5 | 5.563 | 0.134 | 0.258 | 0.375 | .625 | .750 |
| 6 | 6.625 | 0.134 | 0.280 | 0.432 | .719 | .864 |
| 8 | 8.625 | 0.148 | 0.322 | 0.500 | .906 | .875 |
| 10 | 10.750 | 0.165 | 0.365 | 0.500 | 1.125 | |
| 12 | 12.750 | 0.180 | 0.375 | 0.500 | 1.312 | |
| 14 | 14.000 | 0.188 | 0.375 | 0.500 | 1.406 | |
| 16 | 16.000 | 0.188 | 0.375 | 0.500 | 1.594 |
Minimum Wall Thickness on Inspection:
- The following equation, upon which this table is based, may be applied to calculate minimum wall thicknesses from nominal wall thickness:
- tn * 0.875 = tm
Where:
tn = nominal wall thickness, in. [mm], and
tm= minimum wall thicknesses, in. [mm] - The wall thickness is inch-pound units is rounded to three decimal places in accordance with the rounding method of Practice E29. The wall thickness in SI units is rounded to one decimal place in accordance with the rounding method of Practice E29.
- tn * 0.875 = tm
- This table is a master table covering wall thicknesses available in the purchase of different classifications of pipe, but it is not meant to imply that all the walls listed herein are necessarily obtainable for the applicable product specification.
| Nominal Thickness | Minimum Thickness on Inspection | Nominal Thickness | Minimum Thickness on Inspection | Nominal Thickness | Minimum Thickness on Inspection | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| in. | mm | in | mm | in | mm | in | mm | in | mm | in | mm |
| 0.068 | 1.7 | 0.060 | 1.5 | 0.294 | 7.5 | 0.257 | 6.5 | 0.750 | 19.0 | 0.658 | 16.6 |
| 0.068 | 2.2 | 0.077 | 2.0 | 0.300 | 7.6 | 0.262 | 6.7 | 0.812 | 20.6 | 0.710 | 18.0 |
| 0.091 | 2.3 | 0.080 | 2.0 | 0.307 | 7.8 | 0.269 | 6.8 | 0.843 | 21.4 | 0.736 | 18.7 |
| 0.095 | 2.4 | 0.083 | 2.1 | 0.308 | 7.8 | 0.270 | 6.9 | 0.854 | 21.7 | 0.756 | 19.2 |
| 0.113 | 2.9 | 0.099 | 2.5 | 0.312 | 7.9 | 0.273 | 6.9 | 0.875 | 22.2 | 0.766 | 19.5 |
| 0.119 | 3.0 | 0.104 | 2.6 | 0.318 | 8.1 | 0.278 | 7.1 | 0.906 | 23.0 | 0.783 | 20.1 |
| 0.125 | 3.2 | 0.109 | 2.8 | 0.322 | 8.2 | 0.282 | 7.2 | 0.937 | 23.8 | 0.820 | 20.8 |
| 0.126 | 3.2 | 0.110 | 2.8 | 0.330 | 8.4 | 0.289 | 7.3 | 0.968 | 24.6 | 0.847 | 21.5 |
| 0.133 | 3.4 | 0.116 | 2.9 | 0.337 | 8.6 | 0.295 | 7.5 | 1.000 | 25.4 | 0.875 | 22.2 |
| 0.140 | 3.6 | 0.122 | 3.1 | 0.343 | 8.7 | 0.300 | 7.6 | 1.031 | 26.2 | 0.902 | 22.9 |
| 0.145 | 3.7 | 0.127 | 3.2 | 0.344 | 8.7 | 0.301 | 7.6 | 1.062 | 27.0 | 0.929 | 23.6 |
| 0.147 | 3.7 | 0.129 | 3.3 | 0.358 | 9.1 | 0.313 | 8.0 | 1.083 | 27.8 | 0.956 | 24.3 |
| 0.154 | 3.9 | 0.135 | 3.4 | 0.365 | 9.3 | 0.319 | 8.1 | 1.125 | 28.6 | 0.984 | 25.0 |
| 0.156 | 4.0 | 0.136 | 3.5 | 0.375 | 9.5 | 0.328 | 8.3 | 1.156 | 29.4 | 1.012 | 25.7 |
| 0.179 | 4.5 | 0.157 | 4.0 | 0.382 | 9.7 | 0.334 | 8.5 | 1.218 | 30.9 | 1.066 | 27.1 |
| 0.187 | 43.7 | 0.164 | 4.2 | 0.400 | 10.2 | 0.350 | 8.9 | 1.250 | 31.8 | 1.094 | 27.8 |
| 0.188 | 4.8 | 0.164 | 4.2 | 0.406 | 10.3 | 0.355 | 9.0 | 1.281 | 32.5 | 1.121 | 28.5 |
| 0.191 | 4.9 | 0.167 | 4.2 | 0.432 | 10.4 | 0.378 | 9.6 | 1.312 | 33.3 | 1.148 | 29.2 |
| 0.200 | 5.1 | 0.175 | 4.4 | 0.436 | 11.1 | 0.382 | 9.7 | 1.343 | 34.1 | 1.175 | 29.8 |
| 0.203 | 5.2 | 0.178 | 4.5 | 0.437 | 11.1 | 0.382 | 9.7 | 1.375 | 34.9 | 1.203 | 30.6 |
| 0.216 | 5.5 | 0.189 | 4.8 | 0.438 | 11.1 | 0.383 | 9.7 | 1.406 | 35.7 | 1.230 | 31.2 |
| 0.218 | 5.5 | 0.191 | 4.9 | 0.500 | 12.7 | 0.438 | 11.1 | 1.436 | 36.5 | 1.258 | 32.0 |
| 0.219 | 5.6 | 0.192 | 4.9 | 0.531 | 13.5 | 0.465 | 11.8 | 1.500 | 36.1 | 1.312 | 33.3 |
| 0.226 | 5.7 | 0.196 | 5.0 | 0.552 | 14.0 | 0.483 | 12.3 | 1.531 | 38.9 | 1.340 | 34.0 |
| 0.237 | 6.0 | 0.207 | 5.2 | 0.562 | 14.3 | 0.492 | 12.5 | 1.562 | 39.7 | 1.367 | 34.7 |
| 0.250 | 6.4 | 0.219 | 5.6 | 0.593 | 15.1 | 0.519 | 13.2 | 1.593 | 40.5 | 1.394 | 35.4 |
| 0.258 | 6.6 | 0.226 | 5.7 | 0.600 | 15.2 | 0.525 | 13.3 | 1.750 | 44.5 | 1.531 | 38.9 |
| 0.276 | 7.0 | 0.242 | 6.1 | 0.625 | 15.9 | 0.547 | 13.9 | 1.781 | 45.2 | 1.558 | 39.6 |
| 0.277 | 7.0 | 0.242 | 6.1 | 0.656 | 16.6 | 0.573 | 14.6 | 1.812 | 46.0 | 1.586 | 49.3 |
| 0.279 | 7.1 | 0.244 | 6.2 | 0.674 | 17.1 | 0.590 | 15.0 | 1.968 | 50.0 | 1.772 | 43.7 |
| 0.280 | 7.1 | 0.245 | 6.2 | 0.687 | 17.4 | 0.601 | 15.3 | 2.062 | 52.4 | 1.804 | 45.8 |
| 0.281 | 7.1 | 0.246 | 6.2 | 0.719 | 18.3 | 0.629 | 16.0 | 2.343 | 59.5 | 2.050 | 52.1 |
Available Stock
| Pipe Type | NB Sizes | Sch 5 | Sch 10 | Sch 40 | Sch 80 | Sch 160 |
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| Stainless Steel EFW Pipes | 1/8″ |
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| Stainless Steel EFW Pipes | 1/4″ |
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| Stainless Steel EFW Pipes | 3/8″ |
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| Stainless Steel EFW Pipes | 1/2″ |
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| Stainless Steel EFW Pipes | 3/4″ |
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| Stainless Steel EFW Pipes | 1″ |
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| Stainless Steel EFW Pipes | 1 1/4″ |
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| Stainless Steel EFW Pipes | 1 1/2″ |
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| Stainless Steel EFW Pipes | 2″ |
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| Stainless Steel EFW Pipes | 2 1/2″ |
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| Stainless Steel EFW Pipes | 3″ |
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| Stainless Steel EFW Pipes | 4″ |
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| Stainless Steel EFW Pipes | 5″ |
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| Stainless Steel EFW Pipes | 6″ |
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