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Material Data Sheet

material no.: 2.4660
UNS no.: N08020
designation: Alloy 20CB3

CHEMICAL REQUIREMENTS IN (%)

ASTM B473 DIN 17744
C, max. 0,07 0,07
Mn, max. 2,00 2,0
P, max. 0,045 0,025
S, max. 0,035 0,015
Si, max. 1,00 1,00
Ni 32,00 - 38,00 32,00 - 38,00
Cr 19,00 - 21,00 19,00 - 21,00
Mo 2,00 - 3,00 2,0 - 3,0
Cu 3,00 - 4,00 3,0 - 4,0
Nb + Ta 8 x C - 1,00 8 x C - 1,00
Fe Rest Rest
Co, max. 1,5

MECHANICAL PROPERTIES

annealed bar bar

D ≤ 90
DIN 17752
Rm (MPa) ≥ 551 ≥ 550
Rp 0,2 (MPa) ≥ 241 ≥ 240
Rp 1,0 (MPa) ≥ 270
A (%) ≥ 30 ≥ 40
Z (%) ≥ 50

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