DIN 17176 12CrMo19-5 Soft Annealed Steel – High‑Temperature, Scale‑Resistant, Chemically Robust Solution
High temperature steel for high pressure hydrogenation vessels. It is scale resistant up to 650 °C as well as chemical resistant to aggressive (e.g. sulphurous) oils. Application: hydration facilities and petroleum distillation facilities for tubes and shapes, in the quenched and tempered condition also in the steam boiler construction for overheater tubes and collectors
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.77 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 212 - 212.36 GPa |
95.0 °C | 208.22 GPa | |
100.0 °C | 207 - 212 GPa | |
150.0 °C | 204.77 GPa | |
200.0 °C | 199 - 205 GPa | |
205.0 °C | 200.64 GPa | |
260.0 °C | 195.81 GPa | |
300.0 °C | 192 - 198 GPa | |
315.0 °C | 191.67 GPa | |
370.0 °C | 187.54 GPa | |
400.0 °C | 184 - 189 GPa | |
425.0 °C | 182.71 GPa | |
485.0 °C | 177.89 GPa | |
500.0 °C | 175 - 180 GPa | |
540.0 °C | 172.37 GPa | |
595.0 °C | 166.85 GPa | |
600.0 °C | 164 - 168 GPa | |
650.0 °C | 159.96 GPa | |
705.0 °C | 151.69 GPa | |
760.0 °C | 139.27 GPa | |
Elongation | 20.0 °C | 18 - 22 % |
Elongation, transverse | 20.0 °C | 18 % |
Hardness, Brinell | 20.0 °C | 163 - 220 [-] |
Poisson's ratio | 20.0 °C | 0.31 [-] |
95.0 °C | 0.3 [-] | |
150.0 °C | 0.3 [-] | |
205.0 °C | 0.3 [-] | |
260.0 °C | 0.3 [-] | |
315.0 °C | 0.3 [-] | |
370.0 °C | 0.3 [-] | |
425.0 °C | 0.3 [-] | |
485.0 °C | 0.32 [-] | |
540.0 °C | 0.3 [-] | |
595.0 °C | 0.31 [-] | |
650.0 °C | 0.32 [-] | |
705.0 °C | 0.33 [-] | |
760.0 °C | 0.33 [-] | |
Shear modulus | 20.0 °C | 81.36 GPa |
95.0 °C | 80.32 GPa | |
150.0 °C | 78.95 GPa | |
205.0 °C | 77.22 GPa | |
260.0 °C | 75.5 GPa | |
315.0 °C | 73.77 GPa | |
370.0 °C | 72.05 GPa | |
425.0 °C | 70.33 GPa | |
485.0 °C | 67.57 GPa | |
540.0 °C | 66.19 GPa | |
595.0 °C | 63.78 GPa | |
650.0 °C | 60.67 GPa | |
705.0 °C | 57.23 GPa | |
760.0 °C | 52.4 GPa | |
Tensile strength | 20.0 °C | 410 - 540 MPa |
100.0 °C | 360 MPa | |
150.0 °C | 350 MPa | |
200.0 °C | 340 MPa | |
250.0 °C | 340 MPa | |
300.0 °C | 340 MPa | |
350.0 °C | 330 MPa | |
400.0 °C | 320 MPa | |
450.0 °C | 300 MPa | |
500.0 °C | 270 MPa | |
Tensile strength, transverse | 20.0 °C | 395 - 560 MPa |
Yield strength | 20.0 °C | 175 MPa |
Yield strength Rp0.2 | 20.0 °C | 175 MPa |
100.0 °C | 156 MPa | |
150.0 °C | 149 - 150 MPa | |
200.0 °C | 142 - 148 MPa | |
250.0 °C | 138 - 147 MPa | |
300.0 °C | 132 - 145 MPa | |
350.0 °C | 128 - 142 MPa | |
400.0 °C | 125 - 137 MPa | |
450.0 °C | 119 - 129 MPa | |
500.0 °C | 112 - 116 MPa | |
Yield strength Rp0.2, transverse | 20.0 °C | 175 MPa |
100.0 °C | 136 - 156 MPa | |
150.0 °C | 129 - 149 MPa | |
200.0 °C | 122 - 142 MPa | |
250.0 °C | 118 - 138 MPa | |
300.0 °C | 112 - 132 MPa | |
350.0 °C | 108 - 128 MPa | |
400.0 °C | 105 - 125 MPa | |
450.0 °C | 99 - 119 MPa | |
500.0 °C | 92 - 112 MPa | |
Yield strength, transverse | 20.0 °C | 155 - 175 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1E-5 1/K | |
20.0 °C | 1.08E-5 1/K | ||
100.0 °C | 1.13E-5 - 1.14E-5 1/K | ||
200.0 °C | 1.18E-5 - 1.2E-5 1/K | ||
300.0 °C | 1.23E-5 - 1.24E-5 1/K | ||
400.0 °C | 1.27E-5 - 1.28E-5 1/K | ||
425.0 °C | 1.24E-5 1/K | ||
485.0 °C | 1.26E-5 1/K | ||
500.0 °C | 1.3E-5 - 1.32E-5 1/K | ||
540.0 °C | 1.28E-5 1/K | ||
595.0 °C | 1.29E-5 1/K | ||
600.0 °C | 1.32E-5 - 1.34E-5 1/K | ||
650.0 °C | 1.32E-5 1/K | ||
700.0 °C | 1.33E-5 1/K | ||
705.0 °C | 1.32E-5 1/K | ||
Max service temperature, long | 0 - 650 °C | ||
Melting point | 1382 - 1529 °C | Typical for Chromium Molybdenum Steel | |
Specific heat capacity | -100.0 °C | 423 J/(kg·K) | |
20.0 °C | 461 J/(kg·K) | ||
100.0 °C | 479 - 490 J/(kg·K) | ||
200.0 °C | 499 - 530 J/(kg·K) | ||
300.0 °C | 517 - 560 J/(kg·K) | ||
400.0 °C | 536 - 610 J/(kg·K) | ||
500.0 °C | 558 - 670 J/(kg·K) | ||
600.0 °C | 587 - 760 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 20.3 W/(m·K) | |
100.0 °C | 22.7 - 23 W/(m·K) | ||
200.0 °C | 25 W/(m·K) | ||
300.0 °C | 26 - 26.4 W/(m·K) | ||
400.0 °C | 27 - 27.3 W/(m·K) | ||
500.0 °C | 27.7 - 28 W/(m·K) | ||
600.0 °C | 27.8 - 28 W/(m·K) | ||
700.0 °C | 27.5 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 5.7 mm²/s | |
100.0 °C | 5.9 mm²/s | ||
200.0 °C | 6.1 mm²/s | ||
300.0 °C | 6 mm²/s | ||
400.0 °C | 5.8 mm²/s | ||
500.0 °C | 5.4 mm²/s | ||
600.0 °C | 4.7 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 5.14E-7 Ω·m |
100.0 °C | 5.6E-7 - 5.63E-7 Ω·m | |
200.0 °C | 6.3E-7 - 6.32E-7 Ω·m | |
300.0 °C | 7.1E-7 - 7.12E-7 Ω·m | |
400.0 °C | 7.97E-7 - 8E-7 Ω·m | |
500.0 °C | 8.9E-7 - 8.93E-7 Ω·m | |
600.0 °C | 9.96E-7 - 1E-6 Ω·m | |
700.0 °C | 1.12E-6 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.06 - 0.15 % |
Chromium | 4 - 6 % |
Manganese | 0.3 - 60 % |
Molybdenum | 0.45 - 0.65 % |
Phosphorus | 0.03 - 0.04 % |
Silicon | 0.3 - 0.5 % |
Sulfur | 0.03 - 0.035 % |
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