On this page 6 sections
Key features of efw pipes
- Rolled from plate: large diameters and heavy walls
- ASTM A358 Classes define filler and radiography
- Also called "fabricated pipe"
- Used for large-bore process and water lines
EFW Pipes by material
EFW Pipes are available in the following grades. Select a grade for specifications and sizes.
Stainless Steel
- SS 201 EFW Pipes
- SS 202 EFW Pipes
- SS 304 EFW Pipes
- SS 304L EFW Pipes
- SS 304H EFW Pipes
- SS 309 EFW Pipes
- SS 309S EFW Pipes
- SS 310 EFW Pipes
- SS 310S EFW Pipes
- SS 316 EFW Pipes
- SS 316L EFW Pipes
- SS 316Ti EFW Pipes
- SS 317 EFW Pipes
- SS 317L EFW Pipes
- SS 321 EFW Pipes
- SS 321H EFW Pipes
- SS 347 EFW Pipes
- SS 347H EFW Pipes
- SS 409 EFW Pipes
- SS 430 EFW Pipes
- SS 441 EFW Pipes
- SS 904L EFW Pipes
- Duplex 2205 EFW Pipes
- Super Duplex 2507 EFW Pipes
- SS 253 MA EFW Pipes
- SS 254 SMO EFW Pipes
Nickel Alloys
- Inconel 600 EFW Pipes
- Inconel 601 EFW Pipes
- Inconel 625 EFW Pipes
- Inconel 718 EFW Pipes
- Incoloy 800 EFW Pipes
- Incoloy 800H EFW Pipes
- Incoloy 800HT EFW Pipes
- Incoloy 825 EFW Pipes
- Monel 400 EFW Pipes
- Hastelloy C22 EFW Pipes
- Hastelloy C276 EFW Pipes
- Nickel 200 EFW Pipes
- Nickel 201 EFW Pipes
Alloy Steel
EFW Pipes: sizes, finishes and testing
- Size range
- NPS ⅛" to 48" and larger (DN 6 – DN 1200+), schedules 5S to XXS, single random, double random and cut lengths
- Finish
- Annealed & pickled, bright annealed, mill finish, black, varnished, galvanised or 3LPE / FBE coated (by material)
- Ends
- Plain end (PE), bevelled end (BE, ASME B16.25), threaded (NPT / BSP), grooved
Testing & documents
- Chemical and mechanical (tension, flattening, flare/bend) tests
- Hydrostatic test or non-destructive electric test (UT/ET) on each length
- Dimensional and visual inspection
- Intergranular corrosion (stainless), impact (low-temperature), hardness (sour service) when specified
- PMI and third-party inspection on request
- EN 10204 3.1 certificate; 3.2 with third-party inspection
Comparisons
Other pipes types
Frequently asked questions
What sizes are efw pipes available in?
NPS ⅛" to 48" and larger (DN 6 – DN 1200+), schedules 5S to XXS, single random, double random and cut lengths.
Which specifications cover efw pipes?
ASTM A358 Classes define filler and radiography.
What are efw pipes used for?
ASTM A358 Classes define filler and radiography. Stainless EFW pipe is supplied to ASTM A358 in Classes 1–5, depending on filler and radiography.
Which materials are efw pipes available in?
Stainless steel, nickel alloys, carbon and alloy steel and non-ferrous metals, depending on the specification. See the material list above.