The PN-EN 10095:2002 standard, "Heat-resistant steels and nickel alloys," was published on December 27, 2002, by the Polish Committee for Standardization. It replaced the earlier PN-71/H-86022 standard , aligning Polish standards with European requirements.
Standard range:
The PN-EN 10095:2002 standard specifies the technical delivery conditions for the following products made of heat-resistant steel and nickel alloys:
- Semi-finished products
- Tapes
- Hot or cold rolled thin and thick sheets
- Hot or cold formed bars
- Wire rod
- Shapes
Characteristics of heat-resistant steels:
Heat-resistant steels are materials with an austenitic, ferritic-austenitic, or ferritic structure, characterized by high resistance to oxidation and corrosion at high temperatures . These properties make them widely used in structural components exposed to high temperatures, such as industrial furnaces, boilers, and vacuum chambers.
Examples of steel grades according to PN-EN 10095:2002:
Ferritic steels:
- X10CrAlSi7 (1.4713): Ferritic chromium-aluminum-silicon steel, resistant to gases containing sulfur compounds and reducing gases, used for heat-resistant parts of industrial boilers and furnaces, vacuum chambers, etc., heat-resistant in air up to 800°C.
- X10CrAlSi13 (1.4724): Ferritic chromium-aluminum-silicon steel, characterized by good resistance to oxidation at high temperatures, used in components of furnaces and other devices operating at temperatures up to 850°C.
- X10CrAlSi18 (1.4742): Ferritic chromium-aluminum-silicon steel, with increased resistance to oxidation, designed for operation in oxidizing atmospheres up to 1000°C.
- X10CrAlSi25 (1.4762): Ferritic chromium-aluminum-silicon steel, with very high oxidation resistance, used in extreme conditions up to 1150°C.
Austenitic steels:
- X8CrNiTi18-10 (1.4878): Austenitic chromium-nickel steel with the addition of titanium, stabilized, resistant to corrosion and oxidation at temperatures up to 850°C.
- X15CrNiSi20-12 (1.4828): Austenitic chromium-nickel steel with the addition of silicon, characterized by good oxidation resistance at temperatures up to 1000°C.
- X9CrNiSiNCe21-11-2 (1.4835/253MA): Austenitic chromium-nickel steel with the addition of silicon and cerium, with high resistance to oxidation and creep, used at temperatures up to 1150°C.
- X12CrNi23-13 (1.4833): Austenitic chromium-nickel steel, resistant to oxidation at temperatures up to 1000°C.
- X8CrNi25-21 (1.4845): Austenitic chromium-nickel steel with increased resistance to creep and oxidation, used in the chemical and petrochemical industries in components exposed to high temperatures up to 1050°C.
- X15CrNiSi25-21 (1.4841): Austenitic chromium-nickel steel with the addition of silicon, characterized by high resistance to oxidation and corrosion at high temperatures, used in elements of furnaces, burners and other devices operating at temperatures up to 1150°C.
- X12NiCrSi35-16 (1.4864): Austenitic nickel-chromium steel with the addition of silicon, with high resistance to oxidation, used in components operating at temperatures up to 1100°C.
- X10NiCrAlTi32-21 (1.4876): Austenitic nickel-chromium steel with the addition of aluminum material i titanium, characterized by good oxidation resistance at temperatures up to 1100°C.
- X6NiCrNbCe32-27 (1.4877): Austenitic nickel-chromium steel with the addition of niobium and cerium, with high oxidation resistance, used at temperatures up to 1150°C.
Ferritic-austenitic steels:
- X15CrNiSi25-4 (1.4821): Ferritic-austenitic chromium-nickel steel with the addition of silicon, characterized by good oxidation resistance at temperatures up to 1100°C.
Heat-resistant nickel alloys:
- NiCr15Fe (2.4816): A nickel alloy with the addition of chromium and iron, with high oxidation resistance, used in components operating at temperatures up to 1150°C.
- NiCr22Mo9Nb (2.4856): Nickel alloy with added chromium, molybdenum i niobium, characterized by excellent resistance to corrosion and oxidation at high temperatures up to 1150°C.
- NiCr21Ti (2.4951): A nickel alloy with the addition of chromium and titanium, with good oxidation resistance, used at temperatures up to 1000°C.
- NiCr28FeSiCe (2.4889): Nickel alloy with the addition of chromium, iron, silicon and cerium, characterized by very high resistance to oxidation at extreme temperatures up to 1200°C.
- NiCr23Fe (2.4851): Nickel alloy with the addition of chrome i iron, with high resistance to oxidation, used in components operating at temperatures up to 1200°C.
all species according to PN-EN 10095:2002:
For full information on the PN-EN 10095:2002 standard, including detailed chemical compositions and mechanical properties of individual grades of heat-resistant steels and nickel alloys, it is recommended to consult the original standard document available on the website of the Polish Committee for Standardization.