Cold-Drawn Seamless Pipes
Seamless pipe cold-drawn to tighter dimensional tolerances and a finer surface finish, for precision mechanical, hydraulic and instrumentation applications.
Technical Data
| Cold-Drawn Seamless Pipes — specification | |
|---|---|
| Outside Ø · ⅛″–6″ | 4–168 mm |
| Wall thickness | 0.5–20 mm |
| Precision class | EN 10305 -1 |
| Delivery condition | +C·+LC+SR etc |
| Size range | 6–168 mm OD |
| Standard | EN 10305-1 (formerly DIN 2391) · ASTM A519 |
| Grade | E235 · E355 (EN 10305-1) · 1020 / 4130 (ASTM A519) |
| Tolerance | Close (cold-drawn) |
| Ends | Plain |
| Finish | Bright / phosphated |
| ASTM A179 | Low-carbon cold-drawn — heat-exchanger & condenser tube |
| ASTM A192 | Seamless carbon-steel boiler tube — high pressure |
| ASTM A210 | Grade A-1 · Grade C — superheater & boiler tube |
| EN 10305-1 | E235 · E355 (+C · +LC · +SR · +A · +N conditions) |
| EN 10216-2 | P235GH · P265GH (elevated temperature) |
| +C | Cold-finished / as-drawn (hard) |
Key points
- Heat-exchanger & condenser tubes
- Boiler, economizer & superheater tubes
- Hydraulic & pneumatic cylinder tubes
- Precision mechanical & automotive components
- Instrumentation, fuel & injection lines
Drawing & Dimensions
Standard availability in yellow; red cells on request — consult mill. Indicative envelope; intermediate sizes to order — WT/OD combinations limited by drawing ratio.
Click the drawing to enlargeDatasheet & Documents
The official Cold-Drawn Seamless Pipes datasheet — specification, materials, standards and the complete dimension tables.
ISO 9001:2015 certified quality
How to Order
Worked example
CDS · 25.0 × 2.0 mm
ASTM A179 (heat-exchanger)
EN 10305-1 +SR · bright
Cut-to-length 6000 mm
MTC EN 10204 3.1Reads as: a cold-drawn seamless heat-exchanger tube, 25.0 mm OD × 2.0 mm wall, in ASTM A179, supplied stress-relieved with a bright surface, cut to 6 m length, with a 3.1 mill test certificate.
Also in This Range
Questions & Answers
What is cold-drawn seamless tube?
Cold-drawn seamless (CDS) tube is a seamless tube drawn through a die at room temperature, which gives close dimensional tolerances, a smooth bright surface and improved mechanical properties. It is used for heat exchangers, hydraulic cylinders and precision mechanical work, typically to ASTM A179 or EN 10305-1.
What is the difference between hot-rolled and cold-drawn seamless?
Hot-rolled seamless is formed at high temperature and suits structural and pressure piping with standard tolerances. Cold-drawn seamless is finished cold, giving much tighter diameter and wall tolerances plus a bright surface — required for heat-exchanger and precision applications.
What outside ø · ⅛″–6″ do you supply for cold-drawn seamless pipes?
4–168 mm. Other sizes can usually be supplied on request — send your requirement for confirmation.
Which standards and grades are available?
ASTM A179: Low-carbon cold-drawn — heat-exchanger & condenser tube · ASTM A192: Seamless carbon-steel boiler tube — high pressure · ASTM A210: Grade A-1 · Grade C — superheater & boiler tube. See the datasheet for the complete list.
What materials are offered?
E235 · E355 (EN 10305-1) · 1020 / 4130 (ASTM A519).
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.
Cold-Drawn Seamless Pipes. Specified. Checked. Delivered.
Manufactured and supplied to the governing standard, inspected and documented before dispatch.