AISI 253MA | 1.4835 | X9CrNiSiNCe21-11-2 | Austenitic stainless steel
Data sheet according to DIN EN 10095 for material number 1.4835
Stainless steel AISI 253MA (1.4835, X9CrNiSiNCe21-11-2) is a heat-resistant austenitic chromium-nickel steel that is essentially the same as material 1.4828 / AISI 309. However, it differs from this in that it has a higher nitrogen content and the addition of rare earths (cerium) as an alloying constituent. Stainless steel AISI 253MA has a good scaling resistance of up to approx. 1100 °C in dry air. Its corrosion resistance is reduced compared to other austenitic steels and is not given in combination with water. The material is easy to weld and can be processed using all common welding methods. The material is non-magnetic (in the annealed state), but magnetism can occur during welding. This stainless steel grade should not be used for forging. The tensile strength of the material is 650–850 N/mm². This material is particularly suitable for applications in the high-temperature range, which is why it is used, for example, in industrial furnace construction or in heat exchanger construction.
Product range for stainless steel wire AISI 253MA (1.4835)
We are an experienced wholesaler and specialist supplier of high-quality stainless steel wire with customers throughout Europe. As a reliable B2B partner, we meet the diverse requirements of industry and trade and can often guarantee fast delivery times thanks to our large stock. Stainless steel wire AISI 253MA (1.4835) is one of the products in our standard range. An overview of our entire range of stainless wires can be found via the link below.
Specification
EN material number 1.4835
EN abbreviation X9CrNiSiNCe21-11-2
EN standard 10095
Microstructure class: Heat-resistant steel (austenitic stainless steel)
Comparable standards and designations
AISI 253MA
Alloy 253MA
RVS 253MA
SAE 253MA
SS 2368
UNS S30815
Properties and chemical composition of stainless steel AISI 253MA
C | Si | Mn | P | S | N | Cr | N | Mo | Ni | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
0,05 – 0,12 | 1,40 – 2,50 | ≤ 1,00 | ≤ 0,045 | ≤ 0,015 | 0,12 – 0,20 | 20,0 – 22,0 | 0,12 – 0,20 | - | 10,0 – 12,0 | - |
Mass fraction in % according to DIN EN 10088-3
Abbreviations: C = carbon, Cr = chromium, Cu = copper, Mn = manganese, Mo = molybdenum, N = nitrogen, Ni = nickel, P = phosphorus, S = sulphur, Si = silicon, Ti = titanium
Physical properties
Magnetisability: none
Density (kg/dm³): 7.8
Thermal conductivity (at up to 20°C): 15
Electronic resistance at room temperature (in Ω mm²/m): 0.85
Mechanical properties
Yield strength Rp0.2 MPa min.: 310
Tensile strength Rm MPa: 650-850
Elongation at break A80 % min.: 37
The mechanical properties (transverse) correspond to the specifications according to DIN EN 10095.
The material 1.4835 has good welding properties and can be used with all common welding processes such as arc welding, metal inert gas welding (MIG welding) or tungsten inert gas welding (TIG welding). Preheating and post-weld heat treatment are not normally required. You can use the CEV calculator to determine the carbon equivalent of the steel.
Heat resistance
Stainless steel AISI 253 MA / 1.4835 is a steel grade designed for heat resistance, which is specially intended for high-temperature applications. Heat resistance is given up to approx. 1150 °C. The material also has good scale resistance, which is given in air up to 1100 °C, but decreases from around 900 °C.
Corrosion resistance
Due to the high carbon and nitrogen content, stainless steel 1.4835 / AISI 253 MA has reduced resistance to oxidising and reduced sulphur-containing gases. Corrosion resistance in contact with water is not given.
Heat treatment and hot forming
Solution annealing (cooling with air or water): 1020-1120 °C
Hot forming (cooling by air): 1150-900 °C
Application area of stainless steel AISI 253MA / 1.4835
Stainless steel AISI 253MA (1.4835, X9CrNiSiNCe21-11-2) is used in various industrial sectors where extreme heat resistance, high creep resistance and excellent oxidation resistance at temperatures up to approx. 1100°C are required. Typical areas of application are:
Furnace construction and heat treatment plants: Material 253MA is often used for components that are exposed to very high temperatures and oxidising gas atmospheres. Typical products made from this steel include muffles, retorts, annealing baskets, furnace linings, heat exchangers and burner components. Wire is used to manufacture grates, grids and brackets, among other things.
Chemical and petrochemical industry: In the chemical and petrochemical industry, this stainless steel is used to manufacture plant components that are used in reformers, cracking plants and high-temperature reactors. These include heat-resistant pipes, brackets and structural components.
Energy technology: The material is used in energy technology, for example in power plants, waste incineration plants and other thermally stressed systems.
Vehicle and engine construction (high-temperature applications): AISI 253MA (1.4835) stainless steel is used in vehicle construction for components subject to extreme heat, including exhaust systems for high-performance engines, turbocharger housings and heat protection components that must withstand operating temperatures of over 900°C.
General mechanical and plant engineering (heat-stressed): The material is suitable for components in heat-stressed conveyor systems such as conveyor belts in annealing furnaces, heat-resistant screws or components for hot-air systems and thermal processing plants.
Wire products for high-temperature applications: Wire products made from 253 MA stainless steel include heat protection mesh, heat-resistant screens, wire baskets for heat treatment processes and suspension elements for high temperatures.
Please note
The information given in this data sheet has been compiled to the best of our knowledge and is based on the current version of the relevant standard. It is considered for reference only and we assume no liability for any errors.
