Austenitic stainless steels
X18PA
Spécifications
Common name
321
EU
X6CrNiTi18-10
USA
UNS: S32100
AISI: 321
AISI: 321
AMS
5645
AIR
Z10CNT18-11
ISO Symbol
X6CrNiTi18-10
X8CrNiTi18-10
X8CrNiTi18-10
ISO Num
1.4541
1.4878
1.4878
WL
1.4544
BS
S129
ASTM grade
321
321
321
321
F321
321
321
321
F321
ASTM std
A276
A314
A473
A479
A182
A314
A473
A479
A182
Composition
C
< 0.08
Ni
11
Cr
18
Ti
> 5 x C
Applications
• Industries: aerospace, chemical, electrical, marine, nuclear, oil industries.
• Various mechanical parts.
Characteristics
• Titanium stabilised austenitic stainless steel.
• Good resistance to intercrystalline corrosion.
• Good resistance to high temperature oxidation up to 800°C.
• Good weldability.
Mechanical properties
Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
KCU (J/cm²) |
---|---|---|---|---|
H | 600 | 220 | 50 | 190 |
Key to heat treatment symbols
Solution treated | H | Annealed | R |
---|---|---|---|
Thermo-mechanical treatment | TM | Quenched and tempered | T+RV |
Sub-zero treatment | F | Solution treated and aged | H+V |