Hot-Rolled Seamless Pipes
Seamless pipe produced by hot piercing and rolling a solid billet — no weld seam. Suited to high-pressure, high-temperature service in oil, gas, power and process plant.
Technical Data
| Hot-Rolled Seamless Pipes — specification | |
|---|---|
| Outside Ø · ⅛″–26″ | 10.3–660 mm |
| Wall · SCH 5–XXS | 1.6–60 mm |
| Unit length | ≤ 16 m |
| Workhorse grade | A106 A/B/C |
| Size range | 1/2"–24" (DN15–DN600) |
| Standard | ASTM A106 / A53 / API 5L / EN 10216 |
| Grade | Gr. B (A106 / A53 / API 5L) · X-grades API 5L only |
| Wall | Sch 40 to XXS |
| Ends | Bevelled or plain |
| Finish | Black, varnished or coated |
| ASTM A106 | Grade A · Grade B · Grade C (seamless, high-temperature) |
| ASTM A53 | Type S · Grade A · Grade B |
| API 5L | Gr B · X42 · X46 · X52 · X56 · X60 · X65 (PSL1 / PSL2) |
| EN 10216-1 | P235TR1 · P235TR2 · P265TR1 · P265TR2 |
| EN 10216-2 | P235GH · P265GH · 16Mo3 (elevated temperature) |
| ASTM A333 / EN 10216-4 | Gr 6 · P215NL · P265NL (low-temperature service) |
Key points
- High-temperature & high-pressure process piping
- Steam, boiler & superheater lines
- Oil & gas gathering, process & refinery piping
- Petrochemical & power-generation plant
- Hydraulic lines & mechanical / structural use
Drawing & Dimensions
Wall in mm · unit mass in kg/m (steel, ρ 7.85). Full schedule range SCH 5S–XXS available per ASME B36.10M / EN 10216.
Click the drawing to enlargeDatasheet & Documents
The official Hot-Rolled Seamless Pipes datasheet — specification, materials, standards and the complete dimension tables.
ISO 9001:2015 certified quality
How to Order
Worked example
HRS · 6″ (168.3 mm) · SCH 80
ASTM A106 Grade B
DRL 11–13 m · bevelled ends
Bare finish
MTC EN 10204 3.1Reads as: a hot-rolled seamless pipe, NPS 6 / 168.3 mm OD, schedule 80 wall (10.97 mm), in ASTM A106 Grade B, double random length, bevelled ends for butt-welding, bare finish, with a 3.1 mill test certificate.
Also in This Range
Questions & Answers
What is hot-rolled seamless pipe?
Hot-rolled seamless (HRS) pipe is formed from a solid steel billet pierced and rolled at high temperature, so it has no weld seam along its length. It is the standard choice for high-pressure and high-temperature service, typically to ASTM A106 Grade B or API 5L.
What is the difference between seamless and ERW pipe?
Seamless pipe is pierced from a solid billet and has no longitudinal weld; ERW pipe is formed from strip and closed with an electric-resistance weld seam. Seamless is generally specified for higher pressures, thicker walls and elevated temperatures, while ERW is efficient and economical for lower-pressure lines and larger production runs.
Which standard covers A106 pipe dimensions?
Outside diameters and wall thicknesses follow ASME B36.10M; the material, chemistry and mechanical properties follow ASTM A106. Both are listed on our datasheet with the mass-per-metre table.
What outside ø · ⅛″–26″ do you supply for hot-rolled seamless pipes?
10.3–660 mm. Other sizes can usually be supplied on request — send your requirement for confirmation.
Which standards and grades are available?
ASTM A106: Grade A · Grade B · Grade C (seamless, high-temperature) · ASTM A53: Type S · Grade A · Grade B · API 5L: Gr B · X42 · X46 · X52 · X56 · X60 · X65 (PSL1 / PSL2). See the datasheet for the complete list.
What materials are offered?
Gr. B (A106 / A53 / API 5L) · X-grades API 5L only.
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.
Hot-Rolled Seamless Pipes. Specified. Checked. Delivered.
Manufactured and supplied to the governing standard, inspected and documented before dispatch.