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Material Data Sheet

material no.: 2.4669
UNS no.: N07750
designation: Alloy X750

CHEMICAL REQUIREMENTS IN (%)

ASTM B637
C, max. 0,08
Mn, max. 1,00
Si, max. 0,50
S, max. 0,01
Cr 14,00 - 17,00
Co, max. 1,00
Nb + Ta 0,70 - 1,20
Ti 2,25 - 2,75
Al 0,40 - 1,00
Fe 5,00 - 9,00
Cu, max. 0,50
Ni, min. 70,00

MECHANICAL PROPERTIES

solution annealed
at 1149°C,stabilized
+ precipitation hardened
bar / forging

Type 1
Rm (MPa) ≥ 965
Rp 0,2 (MPa) ≥ 620
A (%) ≥ 8
hardness (HB) ≥ 262

MECHANICAL PROPERTIES

solution annealed
at 982°C
+ precipitation hardened
bar / forging

Type 2 / D < 63,5 mm
bar / forging

Type 2 / 63,5 mm ≤ D ≤ 101,6 mm
Rm (MPa) ≥ 1170 ≥ 1170
Rp 0,2 (MPa) ≥ 790 ≥ 790
A (%) ≥ 18 ≥ 15
Z (%) ≥ 18 ≥ 15
hardness (HB) 302 - 363 302 - 363

MECHANICAL PROPERTIES

solution annealed
at 1100°C
+ precipitation hardened
bar / forging

Type 3
Rm (MPa) 1103 - 1276
Rp 0,2 (MPa) 689 - 896
A (%) ≥ 20
Z (%) ≥ 20
hardness (HB) 267 - 363

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