304 Stainless Steel Seamless Pipes
A 304 stainless steel seamless pipe is produced by piercing and drawing a solid stainless billet and has no weld seam along its length.
It is used on high-pressure, vibrating or bent lines where a weld seam is not wanted, and on hydraulic and pneumatic systems. Diameter, wall thickness and length are confirmed against stock and production schedules.
Main Applications
- High-pressure water and air lines
- Hydraulic and pneumatic systems
- Lines requiring bending
- Connections on vibrating machinery
- Instrument and measurement lines
- Heat exchanger applications
Technical Data
| Material | AISI 304 (1.4301) / 304L (1.4307) |
|---|---|
| Manufacture | Seamless (piercing + drawing) |
| Standard | EN 10216-5; ASTM A312 |
| Dimension standard | EN ISO 1127, ASME B36.19M |
| Wall series | SCH 5S, 10S, 40S, 80S (depending on model) |
| Diameter and length | Depending on model, please ask |
| Surface | Pickled or polished (depending on model) |
| Certificate | EN 10204 3.1 (depending on model) |
| Pressure rating | Calculated from diameter, wall and temperature |
| Welded alternative | 304 stainless steel welded pipe |
Material Options
| Property | Seamless 304 | Welded 304L | Seamless 316L |
|---|---|---|---|
| Material number | 1.4301 | 1.4307 | 1.4404 |
| Standard | EN 10216-5 | EN 10217-7 | EN 10216-5 |
| Weld seam | None | Longitudinal seam | None |
| Typical use | High pressure, bending | General piping | Chemical, high pressure |
Which material? With no seam zone, seamless pipe behaves more uniformly under pressure and bending loads; for general water and air lines welded pipe is an economical alternative. Values follow EN 10088 and EN 10216-5.
Advantages
Seamless Construction
- Uniform wall thickness
Suited to High Pressure
- Heavy wall series
Suited to Bending
- No seam weakness
Corrosion Resistant
- Stainless steel
Construction and Design Features
- Body pierced from billet
- Cold or hot drawn
- Pickled surface (depending on model)
- Square-cut ends
Send the outside diameter, SCH or wall thickness, metres and certificate needs; we will confirm stock and lead time for 304 seamless pipe.
How to Choose?
- Choose diameter and SCHDetermine outside diameter and wall series.
- Confirm the pressureCalculate wall thickness for working pressure and temperature.
- Assess the environmentPrefer 316L in chloride media.
- Request certificatesAsk for a 3.1 certificate if needed.
Complementary Products
Why ORFA?
Other Stainless Steel Pipes
304 Stainless Steel Welded Pipes
304 stainless steel welded pipes are corrosion resistant pipes used in water, food and general process installations.
Details →316 Stainless Steel Seamless Pipes
316 stainless steel seamless pipes contain molybdenum, resist chemical and chloride environments and suit high pressure lines.
Details →
316 Stainless Steel Welded Pipes
316 stainless steel welded pipes are made of chemically resistant 316 grade steel for process and marine installations.
Details →Get a quote for your project
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