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Boiler tubes

Heat exchanger tubes

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L, LL, KLM finned tubes (fin tubes)

high frequency welded (serrated) finned tubes (fin tubes)

(serrated) extruded finned tubes

hot dipped galvanized oval (elliptical) finned tubes, rectangular fin tubes

condenser fin flat tubes

H / double H finned tubes (fin tubes)

Studded Pipes

Laser welded finned tubes (fin tubes)

G embedded finned tubes (fin tubes)

inner finned tubes (fin tubes)

longitudinal finned tubes (fin tubes)

seamless finned tubes with two longitudinal opposite fins

casting alloy tubes

Tube finning machine

Aluminum plates, strips,foils

Aluminum welding wire rod

Aluminum tubes, profile

Economizer for Boiler

air-cooled heat exchanger (air cooler)

material

standard & specification

 
Steel Material 1.4466

Material Data 1.4466
X 1 CrNiMoN 25-25-2
W.Nr. 1.4466

Size range
The seamless tubes are supplied cold finished and hot finished.
The standard finish is in accordance with ASTM A 213, ASTM A 312 and DIN 2462 or DIN 2464.
Abbreviations according to DIN 17440. Tubes are supplied in random lenghts, restricted lengths, multiple lengths, approximate lengths, fixed lengths and bent as U bending tubes. The greatest lengths available are 30 m and differ according to grade, size and finish. Detailed information can be given upon request.
Physical properties
Specific gravity at 20°C ...... ...... ...... .7.95 g/cm2
Thermal conductivity at 20°C ...... ...... . .15W/mk
Specific heat at 20°C ...... ...... ...... . . .500 J/kg K
Modulus of elasticity at 20°C ...... ...... . .200000 N/mm2
Thermal expansion in 10 6 m/m °C . . .
20 to 100°C ...... ...... ...... ......16.5
20 to 200°C ...... ...... ...... ......17,5
20 to 300°C ...... ...... ...... ......18.5
20 to 400°C ...... ...... ...... ......18.5
EN 10088 - 2 : 2005   Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088 - 3 : 2005   Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes

C Si Mn Ni P S Cr Mo N
max; 0.02 max; 0.7 max; 2 21 - 23 max; 0.025 max; 0.01 24 - 26 2 - 2.5 0.1 - 0.16

 
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