About the product
High Temperature Stainless Steel
EN 1.4835 – UNS S 30815 – 253 MA®
EN 1.4835 – 253MA® is an austenitic stainless steel, designed primarily for use at temperatures exceeding ~550° C. It has an increased nitrogen content and has been microalloyed with rare earth metals (REM) which gives good resistance to oxidation and relatively high creep strength values.The most suitable temperature range is 850-1100° C , because structural changes when used between 600 and 850°C can lead to reduced impact toughness at room temperature.
It is non-magnetic in the annealed condition but may become slightly magnetic as a result of cold-working or welding.
Design features
⇒ Good resistance to oxidation
⇒ Good resistance to high temperature corrosion
⇒ Good mechanical strength at elevated temperatures
⇒ Relatively high creep strength values
⇒ Good formability and weldability, acceptable machinability
Corrosion resistance
Aqueous corrosion
EN 1.4835 is optimised with regard to corrosion resistance (and strength) at high temperatures. The high contents of N and C make the steel sensible to intergranular corrosion. Its resistance to aqueous corrosion has been limited.
Components made of EN 1.4835 should therefore be designed and operated so that acid condensates are not in contact with the material.
High-temperature corrosion
The resistance of a material to high temperature corrosion is in many cases dependent on its ability to form a protective oxide layer. In reducing atmosphere, when such a layer cannot be created, the corrosion resistance of the material will be determined by the alloy content of the material.
EN 1.4835 – UNS S 30815 – 253 MA®
EN 1.4835 – 253MA® is an austenitic stainless steel, designed primarily for use at temperatures exceeding ~550° C. It has an increased nitrogen content and has been microalloyed with rare earth metals (REM) which gives good resistance to oxidation and relatively high creep strength values.The most suitable temperature range is 850-1100° C , because structural changes when used between 600 and 850°C can lead to reduced impact toughness at room temperature.
It is non-magnetic in the annealed condition but may become slightly magnetic as a result of cold-working or welding.
Design features
⇒ Good resistance to oxidation
⇒ Good resistance to high temperature corrosion
⇒ Good mechanical strength at elevated temperatures
⇒ Relatively high creep strength values
⇒ Good formability and weldability, acceptable machinability
Corrosion resistance
Aqueous corrosion
EN 1.4835 is optimised with regard to corrosion resistance (and strength) at high temperatures. The high contents of N and C make the steel sensible to intergranular corrosion. Its resistance to aqueous corrosion has been limited.
Components made of EN 1.4835 should therefore be designed and operated so that acid condensates are not in contact with the material.
High-temperature corrosion
The resistance of a material to high temperature corrosion is in many cases dependent on its ability to form a protective oxide layer. In reducing atmosphere, when such a layer cannot be created, the corrosion resistance of the material will be determined by the alloy content of the material.
Contact with supplier
Company