EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT)
EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT) introduction
The high corrosion resistant austenitic steel X1CrNiMoCuN 20 18 7 (new designation: X1CrNiMoCuN20-18-7), mat. number 1.4547, is applicable for pressure vessels acc. to TRB 100 and pipeline systems acc. to TRB 100 as well as AD-data sheet W 2 and W 10 from -60 to 400 deg., for steam boilers as per TRD 101 or TRD 107 up to 400 deg. as well as for pressurized gas tanks acc. to TRG 201 and TRG 203 from -60 to 50 deg. Further application in nuclear power engineering as far as nuclear regulations or object-related specifications permit use from -60 to 400 deg.
The material is also allowed for pressure devices acc. EG guideline 97/23/EG under consideration of the chapter 4 appendix I.
The welding suitability of the steel is examined allowing for generally accepted engineering rules for arc hand welding, TIG-welding and plasma welding (using of alloyed, covered rod electrodes and welding rods as well as welding wire of type NiCr20Mo9Nb, intermediate temperature max. 100 deg., without preheating and heat after treatment). VdT_V-Wbl 473 : 2001-12 applies to strip and sheet, in terms of the mechanical-technological properties also for welded tubes. The material is resistant against intercrystalline corrosion in the delivery and welded condition up to400deg.
To the material acc. to DIN EN 10088-1 : 1995-08 applies: The material X1CrNiMoCuN20-18-7 is applicated in solution annealed condition in the form of cold rolled strip, warm rolled strip, warm rolled sheet and rods, wire rod and profiles. It is resistant to intercrystalline corrosion also in sensitized condition.
Equivalent material: JIS SUS312LTB, UNS S31254, ASTM S31254, ASME S31254, GB 015Cr20Ni18Mo6CuN, GB S31252, ASTM A213UNSS31254, DIN 1.4547, DIN X1CrNiMoCuN20-18-7, AFNOR Z1CNDU20-18-06Az, BS X1CrNiMoCuN20-18-7, AISI F44, AISI 254SMO, SAE F44, SAE 254SMO, JIS SUS312L, JIS SUS 312LTB, EN 1.4547, ISO X1CrNiMoCuN20-18-7, ISO 4547-312-54-I, ISO AM45A, ISO 34, ASTM Grade F44, ASTM F44, ASTM Grade 8MLCuNA
EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 8 g/cm³ |
EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.65E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.7E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.75E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.8E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.8E-5 1/K |
- |
| Melting point |
- |
Melting point of 1230 - 1480 °C |
Typical for Austenitic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 500 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 14 W/(m·K) |
- |
EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.02 % |
| Chromium |
Chromium of 19.5 - 20.5 % |
| Copper |
Copper of 0.5 - 1 % |
| Manganese |
Manganese of 1 % |
| Molybdenum |
Molybdenum of 6 - 7 % |
| Nickel |
Nickel of 17.5 - 18.5 % |
| Nitrogen |
Nitrogen of 0.18 - 0.25 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.7 % |
| Sulfur |
Sulfur of 0.01 % |
EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 8.5E-7 Ω·m |
EN 10216-5 Grade X1CrNiMoCuN20-18-7 solution annealed (+AT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 195 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 190 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 182 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 174 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 166 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 158 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 35 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 30 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Austenitic Stainless Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 77 GPa |
Typical for Austenitic Stainless Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 650 - 850 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 650 - 850 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 300 MPa |
- |
| - |
50.0 °C |
Yield strength Rp0.2 of 267 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 230 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 205 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 190 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 180 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 170 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 165 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 160 MPa |
- |
| - |
450.0 °C |
Yield strength Rp0.2 of 153 MPa |
- |
| - |
500.0 °C |
Yield strength Rp0.2 of 148 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 300 MPa |
- |
| Yield strength Rp1.0 |
20.0 °C |
Yield strength Rp1.0 of 340 MPa |
- |
| - |
50.0 °C |
Yield strength Rp1.0 of 306 MPa |
- |
| - |
100.0 °C |
Yield strength Rp1.0 of 270 MPa |
- |
| - |
150.0 °C |
Yield strength Rp1.0 of 245 MPa |
- |
| - |
200.0 °C |
Yield strength Rp1.0 of 225 MPa |
- |
| - |
250.0 °C |
Yield strength Rp1.0 of 212 MPa |
- |
| - |
300.0 °C |
Yield strength Rp1.0 of 200 MPa |
- |
| - |
350.0 °C |
Yield strength Rp1.0 of 195 MPa |
- |
| - |
400.0 °C |
Yield strength Rp1.0 of 190 MPa |
- |
| - |
450.0 °C |
Yield strength Rp1.0 of 184 MPa |
- |
| - |
500.0 °C |
Yield strength Rp1.0 of 180 MPa |
- |
| Yield strength Rp1.0, transverse |
20.0 °C |
Yield strength Rp1.0, transverse of 340 MPa |
- |
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