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Uns S31254 1.4547 254smo 254 Smo X1CrNiMoCuN20-18-7 SUS 312L stainless steel tube bundles Tubing Bundles For shell tube Heat exchanger Boiler condensors heaters coolers evaporator
We are professional Uns S31254 1.4547 254smo 254 Smo X1CrNiMoCuN20-18-7 SUS 312Lstainless steel tube bundles Tubing Bundles For shell tube Heat exchanger Boiler condensors heaters coolers evaporator from china

A tube bundle heat exchanger with baffles is disclosed wherein a tube bundle is housed within  an inner casing which is acted upon from both the inside and the outside by a heating medium
 
A multiple tube bundle heat exchanger includes axially opposite tube plates, a housing, and  a plurality of tube bundles disposed between the tube plates. Each of the tube bundles is  an independent tube bundle subassembly forming an integral unit having at least one  heat exchanger tube with two axial tube ends.

Chemical Composition

 CSiMnSNCrCuMoNiP
1.4547Min %    0,1819,500,506,0017,50 
Max %0,0200,701,000,0100,2520,501,007,0018,50 
(Key to steel 2010)
S 31254Min %    0,1819,500,506,0017,50 
Max %0,200,801,000,0100,2220,501,006,5018,500,030
ASTM A 312 (S 31254)

Physical properties

PropertyValue
Density: kg/dm38,0
Hardness: HB<= 360
magnetizableno
impact work (ISO-V) (J)>100
Temperature T
°C/F
(°C/F)		Specific heat
J / kgK
(Btu / lb °F)		Thermal conductivity
W/mK
(Btu·in / ft2·h·°F)		Electric resistance
µΩ · cm
(Ω circ mill / ft)		Modulus of elasticity 
kN/mm2
(103 ksi)		Expansion rate from 70°F bis T
10-6 / K
(10-6 / °F)
20 / 68500 (--)13 (--)0,85 (--)  
100 / 212520 (--)14 (--)0,90 (--) 16,0 (--)
200 / 392540 (--)15 (--)0,95 (--) 16,0 (--)
300 / 572555 (--)17 (--)1,03 (--) 16,5 (--)
400 / 752570 (--)18 (--)1,10 (--) 17,0 (--)
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