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Incoloy 825 UNS N08825 2.4858 Alloy 825 NiCr21Mo nickel alloy tube bundles Tubing Bundles For shell tube Heat exchanger Boiler condensors heaters coolers evaporators
We are professional Incoloy 825 UNS N08825 2.4858 Alloy 825 NiCr21Mo nickel alloy tube bundles Tubing Bundles For shell tube Heat exchanger Boiler condensors heaters coolers evaporators Factory from china
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
| C | Si | Mn | P | S | Cr | Mo | Ni | Fe | Ti | Cu | AL | Co | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.4858 | Min % | 19,50 | 2,50 | 38,00 | balance | 0,60 | 1,50 | |||||||
| Max % | 0,025 | 0,50 | 1,00 | 0,02 | 0,015 | 23,50 | 3,50 | 46,00 | balance | 1,20 | 3,00 | 0,20 | 1,00 | |
| (Key to Steel 2010) | ||||||||||||||
| alloy 825 N 08825 | Min % | 19,50 | 2,50 | 38,00 | 22,00 | 0,60 | 1,50 | |||||||
| Max % | 0,05 | 0,50 | 1,00 | 0,03 | 23,50 | 3,50 | 46,00 | 1,20 | 3,00 | 0,20 | ||||
| ASTM B 423 | ||||||||||||||
Physical properties
| Property | Value |
|---|---|
| Density: lb/in2 | 0,294 |
| Hardness: HB | 135-165 |
| Permeability at 20°C/68°F | 1,004 |
| 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) |
|---|---|---|---|---|---|
| 20/68 (93/200) | 440 (0105) (110) | 10,8 (73) | 11,2 | 195(28,7) (27,4) | |
| 100/212 | 462 | 2,4 | 114 | 190 | 14,1 |
| 200/392 (204/400) | 488 (0,117) | 14,1 (98) | 118 (710) | 185 (26,8) | 14,9 (8,3) |
| 400/762 (427/800 | 540 (0,131) | 16,9 (120) | 124 (751) | 174 (25,0) | 15,6 (8,7) |
| 500/932 (538/1000) | 565 (0,137 | 18,3 (131) | 126 (761) | 168 (23,8) | 15,8 (8,8) |
| 700/1292 (760/1400) | 615 (0,153) | 21 (155) | 127 (765) | 154 (21,2) | 16,7 (9,5) |
| 900/1652) 982(1800) | 680 (0,167) | 25,7 (192) | 129 (782) | 130 (17,3) | 17,6 (9,9) |
| 1000/1832 | 710 | 28,1 | 130 | 119 | 17,9 |
Mechanical properties (20°C / 68°F)
| Yield strength RP 0,2 (MPa) | >=235 | ||
|---|---|---|---|
| Yield strength RP 1,0 (MPa) | 265 | ||
| Tensile strength- (ksi | 100 | ||
| Elongation (%) | 45 | ||
| Impact energy ISO-V bei RT--längs (J/cm2) bei RT- quer (J /cm2) | >=150 >= 100 | ||
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