1.4878
Data sheet material 1.4878 / AISI 321H
X8CrNiTi18-10
Austenitic heat-resistant stainless steel
Standards and nomenclature
| EN | |
|---|---|
| DIN | X8CrNiTi18-10 |
| AISI | 321H |
| US | S32109 |
| EN | |
|---|---|
| DIN | X8CrNiTi18-10 |
| AISI | 321H |
| US | S32109 |
Chemical composition
| C (carbon) | 0,04 | 0,10 |
| Mn (manganese) | - | 2,0 |
| Si (silicon) | - | 1,0 |
| P (phosphorus) | - | 0,045 |
| S (sulphur) | - | 0,015 |
| Cr (chromium) | 17,0 | 19,0 |
| Ni (nickel) | 9,0 | 12,0 |
| Ti (titanium) | 5xC | 0,8 |
-
-
min.
max.
C
(carbon)
0,04
0,10
Mn
(Manganese)
-
2,0
Si
(Silicon)
-
1,0
P
(phosphorus)
-
0,045
S
(sulphur)
-
0,015
Cr
(chrome)
17,0
19,0
Ni
(nickel)
9,0
12,0
Ti
(Titanium)
5xC
0,8
General properties
| Corrosion resistance | |
|---|---|
| Weldability | excellent |
Special properties
Scale resistant up to 850°C
Corrosion resistance
Good corrosion resistance is given in natural environmental media with a low salt and chlorine content. Material 1.4878 is resistant to intergranular corrosion both as supplied and in the welded condition, but is not resistant to seawater.
Mechanical properties
at 20°C
Hardness
HB
≤ 215
Yield point
Rp0,2
N / mm²
≥ 190
Tensile strength
Rm
N / mm²
500 - 700
Elongation
A5,65
≥ 40%
Modulus of elasticity
kN / mm²
200
Weldability
The material 1.4878 can be welded using all standard welding processes with and without filler metal. Heat treatment after welding is not required.
Machinability
The material 1.4878 tends to work harden during machining. Due to this and its poor thermal conductivity, high-speed steel or carbide tools should be used. Sufficient cooling should be ensured during machining.
Markets & Applications
Apparatus and vessel construction
Automotive industry
Construction industry
Chemical and petrochemical industry
Food industry
Nuclear technology
Pulp and paper industry
Physical properties
at 20°C
Density
kg/dm³
7,9
Electrical
Resistance
(ohm) mm²/m
0,73
Magnetisability
low
Thermal conductivity
W/m K
15
Specific
Heat capacity
J/kg K
500
Frequently asked questions
Important note
TEAM EDELSTAHL operates purely as a trading company without technical staff. Consequently, we are not authorised to provide material consulting services.
The above values and information on the properties and/or usability of the material are purely informative. This information is based on the experience of the manufacturer and TEAM EDELSTAHL. All information is without guarantee. Misprints, errors and changes excepted.
