What is 1.4841 (X15CrNiSi25-21)
The material 1.4841 is characterized by very high temperature resistance, good resistance to scaling, and high resistance to thermal stress. Even at high temperatures, this austenitic stainless steel largely retains its good mechanical properties. Another key characteristic is its good corrosion resistance at elevated temperatures.
International identifiers
Properties of the material 1.4841 (X15CrNiSi25-21)
Properties
| Weldability | good |
| Machinability | medium 7 (1 = poor - 10 = good) |
| Malleability | well |
| Corrosion resistance | medium |
| Corrosion class | 3 (0 = weak - 5 = good) |
Physical properties
| Density in kg/dm3 | 7,9 |
| Electr. Resistance at 20°C (Ω mm2 /m) | 0,9 |
| Thermal conductivity at 20°C in W/(m K) | 15,0 |
| Specific heat capacity at 20°C in J/(kg K) | 500 |
Special properties
- In the air until about 1150°C scale resistant
Processing
| Cold forming | is possible |
| Cold diving | is possible |
| Free-form and drop forging | is possible |
| Spent processing | very rare |
Calculate the weight quickly and easily
Heat treatment 1.4841
| Temperature in °C | Cooling | |
| Hot forming | 1.150 - 800 | air |
| Heat treatment | ||
| Solution annealing | 1.050 - 1.150 | air, water (rapid cooling) |
Welding: the 1.4841 can be welded without any preheating using common methods. Since there is a tendency to warm crack, the limitation of the maximum welding energy should be kept low. After welding no heat treatment is required. 1.4842 can be recommended as welding filler. The heat input can influence the corrosion resistance.
Forging: The forging process can be carried out between 1175°C and 1000°C. The rapid cooling then takes place in water or in air.
Machining: The cutting must be done with low cutting depths and low cutting speeds.
Corrosion resistance: Corrosion resistance to oxidizing and reducing sulfur-containing gases is low. Here the use is limited to temperatures below 650°C.
Chemical composition of 1.4841
| 1.4841 X15CrNiSi25-21 | C | Si | Mn | P | S | Cr | Mo | Ni | V |
|---|---|---|---|---|---|---|---|---|---|
| min. | 1,5 | 24 | 19 | ||||||
| max. | 0,2 | 2,5 | 2,0 | 0,045 | 0,015 | 26 | 22 |
| 1.4841 X15CrNiSi25-21 | Al | Cu | N | Nb | Ti | Sonstiges |
|---|---|---|---|---|---|---|
| min. | ||||||
| max. | 0,11 |
Areas of application for 1.4841
Instructions for use
- Apparatus engineering for high-temperature applications
- Chemical industry
- Mechanical engineering
- Petroleum industry
- Furnace construction
- Cement and chain industry
Areas of application
- Heat-resistant austenitic chromium-nickel steel
- Chemically resistant up to approx. 1,100 °C
- Moderate corrosion resistance
- Good heat resistance due to its high chromium and nickel content
- Good strength and mechanical properties at high temperatures
- Mechanical properties comparable to material 1.4828
Form of supply and availability of 1.4841
In stock
Available for immediate delivery from stock
Form of supply
Flat steel, annealed and quenched
Plate, rolled, annealed and quenched
Sawn blank
The processing with the saw is a mechanical processing of the material, which results in a significantly lower unintended deformation and increased hardness for the existing structure, such as the thermal cutting.
Thus, the machined workpiece has a homogeneous structure even at the edge, which does not change in the continuation of the material.
This circumstance allows immediate finishing of the workpiece with milling or drilling . So it is not necessary to anneal the material or make a similar operation beforehand.
![[Translate to Englisch:]](/fileadmin/user_upload/produkt-fotos/1.4841_Stahlzuschnitt.jpg "[Translate to Englisch:]")
![[Translate to Englisch:]](/fileadmin/user_upload/produkt-fotos/1.4841_Stahlblock.jpg "[Translate to Englisch:]")
![[Translate to Englisch:]](/fileadmin/user_upload/produkt-fotos/1.4841_Flachstahl.jpg "[Translate to Englisch:]")
Frequently asked questions about material 1.4841:
Stainless steel 1.4841 has a tensile strength of 550 to 750 N/mm².
Stainless steel 1.4841 has a density of 7.9 kg/dm³ at 20°C.
Stainless steel 1.4841 has a hardness of ≤ 223 HB.
Material 1.4841 is an austenitic stainless steel and is particularly suitable for high-temperature applications.
More stainless steel
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| 1.4122 | 1.4313 | 1.4410 | 1.4418 |
| 1.4462 | 1.4542 | 17-4PH |
Notice: Specifications contained in following data sheet are provided as a description, liability is excluded!