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Technical Info
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Chemical Specification of UNS S32750
| Elements |
C |
Cr |
Cu |
Fe |
Mo |
Mn |
N |
Ni |
P |
S |
Si |
W |
| Minimum |
|
24.0 |
|
REMAINDER |
3.00 |
|
0.24 |
6.00 |
|
|
0.20 |
0.50 |
| Maximum |
0.030 |
26 |
0.50 |
|
5.00 |
1.20 |
0.32 |
8.00 |
0.035 |
0.020 |
0.80 |
1.00 |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum |
550[79.8] |
| Ultimate Tensile Strength (N/mm2) [ksi] minimum |
800 [116] |
| Elongation (%) minimum |
25 |
| Hardness (HBN) |
270 max |
| Reduction of Cross Section Area (%) |
45 |
| Charpy V-notch Impact at ambient Temp (J) [ft.lb] |
80min [59min] |
| Charpy V-notch Impact at -46°C (J) [ft.lb] |
45av, 35min [33av, 25.8min] |
Basic Properties of UNS S32750 - Mechanical Properties
| Additional Testing |
| ASTM G48A Corrosion test at 40°C |
No pitting and weight loss <4.0g/m2 |
| Ultrasonic Testing |
According to ASTM A388 |
| Ferrite Content |
35%-55% |
| Microstructure |
Microstructure certified free from grain boundary carbides, sigma, chi and laves phases |
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