1.4550
- 347H
- S 34709
1.4550 is austenitic chromium-nickel stainless steel with titanium and niobium addition. Application : chemical, oil and food industrie.
Mechanical Properties
| Tensile strength: | 510-740 | N/mm² |
| Yield strength 0,2% : | 205 | ≥ N/mm² |
| Elongation: | 40/30 | ≥ % |
| Hardness HB30: | 215 | ≤ HB |
Chemical Composition
Carbon
C
0,08% max
Silicon
Si
1,00% max
Magnese
Mn
2% max
Phosphorus
P
0,045% max
Sulphur
S
0,015% max
Chromium
Cr
17,0-19,0%
Nickel
Ni
9,0-12,0% max
Heat Treatment
1050-1100°C followed by water quenching
good resistance to intercrystalline corrosion to ca750°F
non-corroding
- WIG
- well weldable
- MAG solid wire
- manual arc welding (E)
Marking
All material will be marked as follow:
- Manufacturer’s name
- Material grade
- Size
- Heat Number
Certification
Material will be delivered with certificate EN 10204 3.1
