Germany · DIN
X 5 NiCrAlTi 31 20
DIN EN 10302:2008 — Creep resisting steels, nickel and cobalt alloys; German version EN 10302:2002
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionHigh / low temperature
value vs. temperature- +AT · Yield strength Rp0.2
- +RA · Yield strength Rp0.2
Physical properties
vs. temperatureCreep properties
- 10000.0h
- 100000.0h
- 200000.0h
- 2000000.0h
Temperature °C · time at rupture
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Al | 0.2 | 0.5 | ||
| C | 0.03 | 0.08 | ||
| Cr | 19 | 22 | ||
| Cu | 0.5 | |||
| Mn | 1.5 | |||
| Nb | 0.1 | |||
| Ni | 30 | 32.5 | ||
| P | 0.015 | |||
| S | 0.01 | |||
| Si | 0.7 | |||
| Ti | 0.2 | 0.5 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| steel products +AT, 0.5 <= a < 3mm, a- | ≥30 | |||||
| steel products +AT, a >= 3mm, a- | ≥30 | |||||
| steel products +AT, d <= 160mm, d | ≥170 | 500–750 | ≥35 | |||
| steel products +RA | ≥210 | 500–750 | ≥35 | |||
| steel products +RA, 0.5 <= a < 3mm, a- | ≥30 | |||||
| steel products +RA, a >= 3mm, a- | ≥30 |
Physical properties
20.0
| Elastic modulus | Mean thermal expansion | Thermal conductivity | Specific heat | Resistivity | Density | Poisson's ratio |
|---|---|---|---|---|---|---|
| 200.00 | 12.00 | 460.00 | 0.99 | 8.00 |
Typical physical values
| Density | Elastic modulus | Poisson's ratio | Remarks |
|---|---|---|---|
| 7.61–8.10 | 190.00–215.00 | 0.27–0.30 | 不锈钢的典型材料性能数值，此值不来源于标准，它是指示性指标，不能被用于设计用途。 |
| 7.86 | 190.00–210.00 | 0.27–0.30 | 低碳，高合金钢材料性能属性数值，此值不来源于标准，它是指示性指标，不能被用于设计用途。 |
High/low temperature
| Condition | Temperature ℃ | min |
|---|---|---|
| +AT | 400 | 85 |
| +RA | 600 | 110 |
| +AT | 600 | 75 |
| +RA | 550 | 115 |
| +AT | 550 | 75 |
| +RA | 500 | 120 |
| +AT | 500 | 80 |
| +RA | 450 | 125 |
| +AT | 450 | 82 |
| +RA | 400 | 130 |
| +RA | 350 | 137 |
| +AT | 350 | 90 |
| +RA | 300 | 145 |
| +AT | 300 | 95 |
| +RA | 250 | 152 |
| +AT | 250 | 105 |
| +RA | 200 | 160 |
| +AT | 200 | 115 |
| +RA | 150 | 170 |
| +AT | 150 | 127 |
| +RA | 100 | 180 |
| +AT | 100 | 140 |
| +AT | 50 | 157 |
Creep
1.Solution annealed Flat products
| Temperature ℃ | Time h | Rp1 | CRS |
|---|---|---|---|
| 500 | 10000.0h | 290.0 | |
| 500 | 100000.0h | 215.0 | |
| 500 | 200000.0h | 196.0 | |
| 510 | 10000.0h | 279.0 | |
| 510 | 100000.0h | 205.0 | |
| 510 | 200000.0h | 186.0 | |
| 520 | 10000.0h | 267.0 | |
| 520 | 100000.0h | 195.0 | |
| 520 | 200000.0h | 176.0 | |
| 530 | 10000.0h | 254.0 | |
| 530 | 100000.0h | 184.0 | |
| 530 | 200000.0h | 166.0 | |
| 540 | 10000.0h | 240.0 | |
| 540 | 100000.0h | 172.0 | |
| 540 | 200000.0h | 155.0 | |
| 550 | 10000.0h | 225.0 | |
| 550 | 100000.0h | 160.0 | |
| 550 | 200000.0h | 143.0 | |
| 560 | 10000.0h | 208.0 | |
| 560 | 100000.0h | 147.0 | |
| 560 | 200000.0h | 130.0 | |
| 570 | 10000.0h | 190.0 | |
| 570 | 100000.0h | 133.0 | |
| 570 | 200000.0h | 117.0 | |
| 580 | 10000.0h | 172.0 | |
| 580 | 100000.0h | 119.0 | |
| 580 | 200000.0h | 105.0 | |
| 590 | 10000.0h | 155.0 | |
| 590 | 100000.0h | 106.0 | |
| 590 | 200000.0h | 93.0 | |
| 600 | 10000.0h | 115.0 | 140.0 |
| 600 | 100000.0h | 85.0 | 95.0 |
| 600 | 200000.0h | 83.0 | |
| 610 | 10000.0h | 109.0 | 128.0 |
| 610 | 100000.0h | 79.0 | 85.0 |
| 610 | 200000.0h | 74.0 | |
| 620 | 10000.0h | 102.0 | 118.0 |
| 620 | 100000.0h | 74.0 | 78.0 |
| 620 | 200000.0h | 68.0 | |
| 630 | 10000.0h | 96.0 | 109.0 |
| 630 | 100000.0h | 69.0 | 72.0 |
| 630 | 200000.0h | 63.0 | |
| 640 | 10000.0h | 90.0 | 103.0 |
| 640 | 100000.0h | 64.0 | 67.0 |
| 640 | 200000.0h | 59.0 | |
| 650 | 10000.0h | 84.0 | 97.0 |
| 650 | 100000.0h | 59.0 | 63.0 |
| 650 | 200000.0h | 55.0 | |
| 660 | 10000.0h | 78.0 | 91.0 |
| 660 | 100000.0h | 55.0 | 59.0 |
| 660 | 200000.0h | 52.0 | |
| 670 | 10000.0h | 73.0 | 85.0 |
| 670 | 100000.0h | 51.0 | 55.0 |
| 670 | 200000.0h | 48.0 | |
| 680 | 10000.0h | 68.0 | 80.0 |
| 680 | 100000.0h | 47.0 | 52.0 |
| 680 | 200000.0h | 45.0 | |
| 690 | 10000.0h | 63.0 | 74.0 |
| 690 | 100000.0h | 43.0 | 48.0 |
| 690 | 200000.0h | 41.0 | |
| 700 | 10000.0h | 58.0 | 69.0 |
| 700 | 100000.0h | 40.0 | 44.0 |
| 700 | 200000.0h | 38.0 |
Similar grades
| Grade | Region | System |
|---|---|---|
| 4876-088-00-I | International standard | ISO |
| 1.4958 |  Italy | UNI |
| X 5 NiCrAlTi 31 20 | Italy | UNI |
| 1.4958 |  Spain | UNE |
| X 5 NiCrAlTi 31 20 | Spain | UNE |
| 1.4958 |  Romania | STAS |
| X 5 NiCrAlTi 31 20 | Romania | STAS |
| 1.4958 |  Sweden | SS |
| X 5 NiCrAlTi 31 20 | Sweden | SS |
| 1.4958 |  Switzerland | SNV |
| X 5 NiCrAlTi 31 20 | Switzerland | SNV |
| 1.4958 |  Finland | SFS |
| X 5 NiCrAlTi 31 20 | Finland | SFS |
| 1.4958 |  Poland | PN |
| X 5 NiCrAlTi 31 20 | Poland | PN |
| 1.4958 |  Austria | ONORM |
| X 5 NiCrAlTi 31 20 | Austria | ONORM |
| 1.4958 |  Norway | NS |
| X 5 NiCrAlTi 31 20 | Norway | NS |
| 1.4958 |  Belgium | NBN |
| X 5 NiCrAlTi 31 20 | Belgium | NBN |
| 1.4958 |  Hungary | MSZ |
| X 5 NiCrAlTi 31 20 | Hungary | MSZ |
| 1.4958 | Czech Republic | CSN |
| X 5 NiCrAlTi 31 20 | Czech Republic | CSN |
| 1.4958 | Bulgaria | BDS |
| X 5 NiCrAlTi 31 20 | Bulgaria | BDS |
| 1.4958 |  United Kingdom | B.S. |
| X 5 NiCrAlTi 31 20 | United Kingdom | B.S. |
| 1.4958 |  France | AFNOR NF |
| X 5 NiCrAlTi 31 20 | France | AFNOR NF |
| X8NiCrAlTi32-21 | International standard | ISO |
| 1.4959 |  European Union | EN |
| 1.4876 | European Union | EN |
| X 8 NiCrAlTi 32 21 | European Union | EN |
| X 10 NiCrAlTi 32 21 | European Union | EN |
| 1.4958 | Germany | DIN |