1.4876
Data sheet material 1.4876 / Alloy 800
X10NiCrAITi32-20
Austenitic iron-nickel-chromium alloy
Brief description
The material 1.4876 or Alloy 800 is an austenitic iron-nickel-chromium alloy with good corrosion resistance and heat resistance. This material also has good resistance in oxidising, reducing and nitriding media and good workability. The material 1.4876 is used for temperatures up to approx. 600°C. For temperatures above 600°C, the solution-annealed variant should be used. 1.4876H resp. Alloy 800H can be used.
Standards and nomenclature
| EN | |
|---|---|
| DIN | X10NiCrAITi32-20 |
| AISI | Alloy 800 |
| US | N08800 |
| EN | |
|---|---|
| DIN | X10NiCrAITi32-20 |
| AISI | Alloy 800 |
| US | N08800 |
Chemical composition
| Ni (nickel) | 30,0 | 32,0 |
| Cr (chromium) | 19,0 | 21,5 |
| Fe (iron) | 41,0 | 47,0 |
| C (carbon) | - | 0,1 |
| Mn (manganese) | 0,5 | 1,0 |
| Si (silicon) | 0,2 | 0,6 |
| Al (aluminium) | 0,4 | 0,6 |
| Cu (copper) | - | 0,5 |
| P (phosphorus) | - | 0,015 |
| S (sulphur) | - | 0,01 |
| Ti (titanium) | 0,2 | 0,5 |
-
-
min.
max.
Ni
(nickel)
30,0
32,0
Cr
(chrome)
19,0
21,5
Fe
(iron)
41,0
47,0
C
(carbon)
-
0,1
Mn
(Manganese)
0,5
1,0
Si
(Silicon)
0,2
0,6
-
-
min.
max.
Al
(aluminium)
0,2
0,4
Cu
(copper)
-
0,5
P
(phosphorus)
-
0,015
S
(sulphur)
-
0,01
Ti
(Titanium)
0,2
0,5
-
-
-
-
General properties
| Corrosion resistance | |
|---|---|
| Mechanical properties | good |
| Weldability | good |
Special properties
Heat-resistant against carburisation and oxidation
Good mechanical properties at low and high temperatures up to 800°C
Corrosion resistance
Due to its high nickel content, the material 1.4876 has good resistance to stress corrosion cracking. The high chromium content in turn ensures good resistance to pitting and crevice corrosion. At higher temperatures, Alloy 800 is characterised by excellent resistance to (alternating) oxidation and carburisation. Its resistance to nitrogen, hydrogen and sulphurous gases is better in an oxidising atmosphere than in a reducing atmosphere. In acidic media such as organic acids or nitric acid, this grade has good resistance, but Alloy 800 is only resistant to a limited extent in hydrochloric and sulphuric acid.
Mechanical properties
at 20°C
Yield point
Rp0,2
N / mm²
≥ 210
Tensile strength
Rm
N / mm²
≥ 500
Elongation
A5,65
≥ 30%
Modulus of elasticity
kN / mm²
194
Weldability
The material 1.4876 is easy to weld using conventional welding processes. These include TIG, MIG or manual arc welding. The workpiece should be welded in a stress-free, metallically bright and dirt-free condition. Low heat input, targeted heat conduction and rapid heat dissipation are recommended. The line bead technique should be used. The temperature of the intermediate layers should not exceed 120°C. Annealing colours should be removed immediately after welding, i.e. while still warm, using a stainless steel brush.
Machinability
Machining should be carried out in the annealed condition. Alloy 800 tends to work harden. Therefore, a low cutting speed and a low feed rate should be selected. The tool should be in constant engagement. A sufficient cutting depth should be selected so that the previously created work-hardened zone can be undercut. To ensure a stable cutting process, heat dissipation should be optimised by using large quantities of suitable, water-based cooling lubricants.
Cold forming
The material 1.4876 can be cold formed very well, but intermediate annealing should be carried out for heavy cold forming.
Thermal treatment
| Solution annealing | |
|---|---|
| Hot forming | 1200 - 900°C |
| Cooling down | quickly with water or air |
| Solution annealing | |
|---|---|
| Hot forming | 1200 - 900°C |
| Cooling down | quickly with water or air |
Physical properties
Density
at 20°C
kg/dm³
8,0
Electrical
Resistance at 20°C
(ohm) mm²/m
1,01
Melting range
1350 - 1400°C
Thermal conductivity
at 20°C
W/m K
12,4
Specific
Heat capacity
at 20°C
J/kg K
443
Markets & Applications
Equipment engineering for high-temperature applications
Chemical and petrochemical industry
Industrial furnace construction
Power plant construction
Hydrogen industry
Our
Delivery programme
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.
