
Our Alleima hydraulic and instrumentation tubes are offered in a comprehensive range of stainless steels and nickel alloys covering outside diameters from (OD) 1.59 to 50 mm (0.0625 to 1.968 in.). All sizes are supplied with bright annealed surfaces and close dimensional tolerances.
Standard delivery form for hydraulic and instrumentation tube from Alleima is straight lengths of 6 meters, but our tubes can also be delivered as coiled tubing in 28days.

Seamless tube – List of alloys
- Austenitic stainless steels
- Duplex stainless steels
- Nickel alloys
Alleima portfolio of seamless tube includes:
For Full range of materials, please visit here.
Austenitic stainless steels | |||
Alleima grade | UNS | ASTM | EN no. |
Alleima® 3R60 | S31603/S31600 | 316L/316 | 1.4435/1.4436 |
Nickel alloys and High Alloy Austenitic stainless steels | |||
Alleima grade | UNS | ASTM | EN number |
Alleima® 254 SMO | S31254 | – | 1.4547 |
Sanicro® 625 | N06625 | Alloy 625 | – |
Sanicro® 28 | N08028 | – | 1.4563 |
Alleima® 2RK65 | N08904 | 904L | 1.4539 |
Duplex stainless steels | |||
Alleima grade | UNS | ASTM | EN number |
---|---|---|---|
SAF™ 2205 | S32205/31803 | – | 1.4462 |
SAF™ 2507 | S32750 | – | 1.4410 |
From straight lengths to coil, TPK Engineering Controls Pte Ltd stocks an extensive range of SS316/SS316L tubing from Alleima in a wide variety of sizes, metric to fractional.
Hydraulic and Instrument tubes marked with Sandvik are in stock and subjected to prior sales. All new production orders from mill will have new marking of Alleima.
Alleima online pressure calculator are tools that provides estimates of the Alleima grades.
The result of each calculation is presented as an approximate maximum working pressure.
Due to the differences in national regulations, calculations of this type differ from country to country, and many limitations exist. We have, therefore, chosen to present the following standards:
Please note: The pressures suggested are only given as guidance. Dimensioning of piping systems is also dependent on external forces, thermal stress, static weight etc.
Standards
Alleima® 3R12 and Alleima® 3R60
- EN 10216-5 TC1
- ASTM A213-AW (average wall)
- ASTM A269
- PED 2014/68/EU
- OD <6 mm according to A632
- NACE MR0175/ISO 15156
254 SMO (UNS S31254)
- EN 10216-5 TC1
- ASTM A269
- PED 2014/68/EU
- NACE MR0175/ISO 15156
Alleima® 2RK65 (UNS N08904)
- EN 10216-5 TC1
- ASTM A213 A269
- PED 2014/68/EU
- NACE MR0175/ISO 15156
Sanicro® 28 (UNS N08028)
- EN 10216-5 TC1
- ASTM B668
- PED 2014/68/EU
- NACE MR0175/ISO 15156
SAF™ 2507 (UNS S32750)
- EN 10216-5 TC1
- ASTM A789
- PED 2014/68/EU
- NACE MR0175/ISO 15156