SEW 470 Grade X9CrNiSiNCe21-11-2: High‑Temperature Solution‑Annealed Steel for Industrial Applications
Fully austenitic steel of high scaling temp. of 1150°C in air (highest application temp. in air), warranted scaling resistance for wide and fast thermal fluctuation, but no resistance in reducing athmosphere. Excellent creep behaviour and high deformation resistance. Application for furnace components, hood annealing and muffle furnaces, lifting bar furnaces, sealing sheets, radiator tubes, charging cages, insert boxes, recuperators as well as for combustion nozzles and for strongly loaded components of waste gas detoxification facilities.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.8 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 195 GPa | Typical for Austenitic Stainless Steel |
Elongation | 20.0 °C | 40 % | |
Elongation A80 | 20.0 °C | 37 % | |
Hardness, Brinell | 20.0 °C | 210 [-] | |
Poisson's ratio | 23.0 °C | 0.3 [-] | Typical for Austenitic Stainless Steel |
Shear modulus | 23.0 °C | 77 GPa | Typical for Austenitic Stainless Steel |
Tensile strength | 20.0 °C | 650 - 850 MPa | |
Yield strength Rp0.2 | 20.0 °C | 310 MPa | |
Yield strength Rp1.0 | 20.0 °C | 350 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 200.0 °C | 1.7E-5 1/K | |
400.0 °C | 1.8E-5 1/K | ||
600.0 °C | 1.85E-5 1/K | ||
800.0 °C | 1.9E-5 1/K | ||
1000.0 °C | 1.95E-5 1/K | ||
Max service temperature, long | 0 - 1150 °C | ||
Melting point | 1230 - 1480 °C | Typical for Austenitic Stainless Steel | |
Specific heat capacity | 20.0 °C | 500 J/(kg·K) | |
600.0 °C | 660 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 15 W/(m·K) | |
500.0 °C | 21 W/(m·K) | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 8.5E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.05 - 0.12 % |
Cerium | 0.03 - 0.08 % |
Chromium | 20 - 22 % |
Manganese | 1 % |
Nickel | 10 - 12 % |
Nitrogen | 0.12 - 0.2 % |
Phosphorus | 0.05 % |
Silicon | 1.4 - 2.5 % |
Sulfur | 0.015 % |
Metal
- EN 10028-7 Grade X2CrTi17 – Solution-Annealed Ferritic Stainless Steel for Automotive, Electrical, and Household Use
- X3CrTi17 Ferritic Steel – EN 10028-7 Grade, Solution Annealed (+AT) – Superior Corrosion Resistance
- EN 10028-7 Grade X2CrMoTi18-2: Solution-Annealed Ferritic Steel (+AT) – Superior Corrosion Resistance & Cold Forming
- SEW 470 X12NiCrSi35‑16 Solution‑Annealed Steel – High‑Temperature, Non‑Embrittling Grade for Furnace Applications
- EN 10095 X9CrNiSiNCe21-11-2: High-Temperature Solution-Annealed Austenitic Steel (+AT)
- SEW 470 Grade X8CrNiTi18-10 – Solution Annealed Steel for High-Temperature Mechanical Loads
- SEW 470 X15CrNiSi20-12 Solution-Annealed Grade – High‑Temperature Heat‑Resistant Steel
- SEW 470 Grade X12CrNi23-13 – Solution Annealed + AT for High‑Temperature Applications
- SEW 470 X8CrNi25-21 Solution‑Annealed Alloy – High‑Temperature, Nitrogen‑Resistant Grade
- SEW 470 X15CrNiSi25-21: Solution-Annealed Steel for High‑Temperature Applications