ERW / EFW / HFW Pipes
Pipe formed from steel coil and joined by electric welding — high-frequency resistance (ERW / HFW) or electric fusion (EFW) — with no filler metal. Cost-effective for small- to medium-diameter water, line-pipe and structural use.
Technical Data
| ERW / EFW / HFW Pipes — specification | |
|---|---|
| Outside Ø · 2″–16″ | 60.3–406.4 mm |
| Wall thickness | 2.1–12.7 mm |
| Unit length | ≤ 16 m |
| API 5L / PSL2 grade | X80 max |
| Size range | 1/2"–24" (DN15–DN600) |
| Standard | API 5L · EN 10217 · ASTM A53 (EFW: EN 10217 / ASTM A671-A672) |
| Grade | X-grades to API 5L only · ASTM A53 max Gr. B |
| Wall | Schedule per spec |
| Ends | Bevelled, plain or threaded |
| Finish | Black, galvanized or coated |
| API 5L PSL1 | Gr B · X42 · X46 · X52 · X56 · X60 · X65 · X70 |
| API 5L PSL2 | X42 · X46 · X52 · X56 · X60 · X65 · X70 · X80 |
| ASTM A53 | Grade A · Grade B |
| EN 10217-1 | P235TR1 · P235TR2 · P265TR2 |
| EN 10224 | L235 · L275 · L360 |
| ISO 3183 | L245NB · L290NB · L360NB |
Key points
- Oil, natural gas & water transmission / distribution lines
- Flammable & non-flammable fluid conveyance
- Liquid hydrocarbon & pressured-air lines
- Heating, cooling & ventilation (HVAC) piping
- Steel structures & construction elements
Drawing & Dimensions
Standard availability in yellow; red cells on request — consult mill. Intermediate sizes and grades produced to order.
Click the drawing to enlargeDatasheet & Documents
The official ERW / EFW / HFW Pipes datasheet — specification, materials, standards and the complete dimension tables.
ISO 9001:2015 certified quality
How to Order
Worked example
HFW · 219.1 × 6.4 mm
API 5L X52 PSL1 · 12 m
Bevelled ends
3LPE external coating
MTC EN 10204 3.1Reads as: a high-frequency welded line pipe, 8″ outside diameter, 6.4 mm wall, in API 5L grade X52 PSL1, 12 m random length, bevelled ends, 3-layer polyethylene external coating, supplied with a 3.1 mill test certificate.
Also in This Range
Questions & Answers
What is ERW pipe?
ERW (electric resistance welded) pipe is made by cold-forming steel strip into a cylinder and joining the edges with a longitudinal weld created by electrical resistance heating — no filler metal is used. HFW is the high-frequency version of the same process. It is widely used for line pipe, water lines and structural applications.
What is the difference between ERW, EFW and HFW pipe?
All three are welded pipe. ERW and HFW join the edges by resistance heating without filler metal, HFW using high-frequency current. EFW (electric fusion welded) uses an arc process with filler metal, and is covered by standards such as EN 10217 and ASTM A671/A672 rather than the API 5L ERW route.
What outside ø · 2″–16″ do you supply for erw / efw / hfw pipes?
60.3–406.4 mm. Other sizes can usually be supplied on request — send your requirement for confirmation.
Which standards and grades are available?
API 5L PSL1: Gr B · X42 · X46 · X52 · X56 · X60 · X65 · X70 · API 5L PSL2: X42 · X46 · X52 · X56 · X60 · X65 · X70 · X80 · ASTM A53: Grade A · Grade B. See the datasheet for the complete list.
What materials are offered?
X-grades to API 5L only · ASTM A53 max Gr. B.
Is a technical datasheet available?
Yes — the official YTM Pipe datasheet with dimensions, materials and standards can be downloaded on this page.
How do I get a price?
Send size, specification and quantity through the Request-a-Quote form, WhatsApp or [email protected] — our team responds within one business day.
ERW / EFW / HFW Pipes. Specified. Checked. Delivered.
Manufactured and supplied to the governing standard, inspected and documented before dispatch.