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Material Data Sheet

material no.: 2.4858
UNS no.: N08825
designation: Alloy 825

CHEMICAL REQUIREMENTS IN (%)

ASTM B425/564 VdTÜV Werkstoffblatt 432 DIN 17744
Ni 38,0 - 46,0 38,0 - 46,0 38,0 - 46,0
Cr 19,5 - 23,5 19,5 - 23,5 19,5 - 23,5
Fe 22,0 min. Bal. Bal.
Mn, max. 1,00 1,00 1,00
C, max. 0,05 0,025 0,025
Cu 1,5 - 3,0 1,50 - 3,00 1,5 - 3,0
Si, max. 0,5 0,50 0,50
S, max. 0,03 0,010 0,015
Al, max. 0,2 0,20 0,20
Ti 0,6 - 1,2 0,60 - 1,20 0,60 - 1,20
Mo 2,5 - 3,5 2,50 - 3,50 2,5 - 3,5
P, max. 0,020 0,020
Co, max. 1,00

MECHANICAL PROPERTIES

annealed bar | forging

ASTM B425 | ASTM B564
bar / forging
D ≤ 240 mm
bar

D ≤ 160 mm
DIN 17752
Rm (MPa) ≥ 586 550 - 750 ≥ 590
Rp 0,2 (MPa) ≥ 241 ≥ 220 ≥ 240
Rp 1,0 (MPa) ≥ 250 ≥ 270A (%)
A (%) ≥ 30 ≥ 35 ≥ 30
Av (J) l ≥ 120, q/t ≥ 80
hardness
(HBW 2,5/62,5)
max. 210

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