1.4878
- 321H
- S 32109
Middle resistance to carburized gases. Low resistance to oxidized and reduced sulphuric gases. Application: industral furnace engineering
Mechanical Properties
| Tensile strength: | 500-720 | N/mm² |
| Yield strength 0,2% : | 190 | ≥ N/mm² |
| Elongation: | 40 | ≥ % |
| Hardness HB30: | 215 | ≤ HB |
Chemical Composition
Carbon
C
0,10% 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
high corrosion resistance
- WIG
- submerged arc welding
- 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
