Isıya dayanıklı çelikler
Isıya dayanıklı çelikler, yüksek sıcaklıklardaki kullanım sırasında yararlı mekanik özelliklerini korumak ve oksidasyona ya da tufallaşmaya direnmek üzere tasarlanmış alaşımlı malzemelerdir. Sıcak gazlara veya sürekli ısıya maruz kalan fırınlar, kazanlar, ısı eşanjörleri ve enerji üretim ekipmanlarının bileşenlerinde kullanılırlar.
| Kalite | Malzeme no. | C | Si | P | S | Cr | Mn |
|---|---|---|---|---|---|---|---|
| STR660 | — | max 0.08 | max 1 | max 0.04 | max 0.03 | 13.5 - 16 | max 2 |
| STR409L | — | — | — | — | — | — | — |
| STR36 | — | 0.48 - 0.58 | max 0.35 | max 0.04 | 0.04 - 0.09 | 20 - 22 | 8 - 10 |
| STR3 | — | 0.35 - 0.45 | 1.8 - 2.5 | max 0.03 | max 0.03 | 10 - 12 | max 0.6 |
| STR616 | — | 0.2 - 0.25 | max 0.5 | max 0.04 | max 0.03 | 11 - 13 | 0.5 - 1 |
| SUH36 | — | 0.48 - 0.58 | max 0.35 | max 0.04 | 0.04 - 0.09 | 20 - 22 | 8 - 10 |
| SUH11 | — | 0.45 - 0.55 | 1 - 2 | max 0.03 | max 0.03 | 7.5 - 9.5 | max 0.6 |
| SUH409L | — | max 0.03 | max 1 | max 0.04 | max 0.03 | 10.5 - 11.75 | max 1 |
| STR330 | — | max 0.15 | max 1.5 | max 0.04 | max 0.03 | 14 - 17 | max 2 |
| STR409 | — | — | — | — | — | — | — |
| STR35 | — | 0.48 - 0.58 | max 0.35 | max 0.04 | max 0.03 | 20 - 22 | 8 - 10 |
| STR1 | — | 0.4 - 0.5 | 3 - 3.5 | max 0.03 | max 0.03 | 7.5 - 9.5 | max 0.6 |
| STR600 | — | 0.15 - 0.2 | max 0.5 | max 0.04 | max 0.03 | 10 - 13 | 0.5 - 1 |
| SUH31 | — | 0.35 - 0.45 | 1.5 - 2.5 | max 0.04 | max 0.03 | 14 - 16 | max 0.6 |
| SUH661 | — | 0.08 - 0.16 | max 1 | max 0.04 | max 0.03 | 20 - 22.5 | 1 - 2 |
| SUH21 | — | max 0.1 | max 1.5 | max 0.04 | max 0.03 | 17 - 21 | max 1 |
| STR21 | — | max 0.1 | max 1.5 | max 0.04 | max 0.03 | 17 - 21 | max 1 |
| STR31 | — | 0.35 - 0.45 | 1.5 - 2.5 | max 0.04 | max 0.03 | 14 - 16 | max 0.6 |
| STR38 | — | 0.25 - 0.35 | max 1 | 0.18 - 0.25 | max 0.03 | 19 - 21 | max 1.2 |
| STR11 | — | 0.45 - 0.55 | 1 - 2 | max 0.03 | max 0.03 | 7.5 - 9.5 | max 0.6 |
| SUH38 | — | 0.25 - 0.35 | max 1 | 0.18 - 0.25 | max 0.03 | 19 - 21 | max 1.2 |
| SUH616 | — | 0.2 - 0.25 | max 0.5 | max 0.04 | max 0.03 | 11 - 13 | 0.5 - 1 |
| STR310 | — | max 0.25 | max 1.5 | max 0.04 | max 0.03 | 24 - 26 | max 2 |
| STR661 | — | 0.08 - 0.16 | max 1 | max 0.04 | max 0.03 | 20 - 22.5 | 1 - 2 |
| STR446 | — | max 0.2 | max 1 | max 0.04 | max 0.03 | 23 - 27 | max 1.5 |
| STR37 | — | 0.15 - 0.25 | max 1 | max 0.04 | max 0.03 | 20.5 - 22.5 | 1 - 1.6 |
| STR4 | — | 0.75 - 0.85 | 1.75 - 2.25 | max 0.03 | max 0.03 | 19 - 20.5 | 0.2 - 0.6 |
| SUH37 | — | 0.15 - 0.25 | max 1 | max 0.04 | max 0.03 | 20.5 - 22.5 | 1 - 1.6 |
| SUH600 | — | 0.15 - 0.2 | max 0.5 | max 0.04 | max 0.03 | 10 - 13 | 0.5 - 1 |
| STR309 | — | max 0.2 | max 1 | max 0.04 | max 0.03 | 22 - 24 | max 2 |
| X2CrAlTi18-2 | 1.4605 | ≤0,030 | ≤1,00 | 0,04 | 0,015 | 17,0-18,0 | ≤1,00 |
| 8CrSi7-7 | 1.4700 | ≤0,10 | 1,50-1,80 | 0,045 | 0,03 | 1,50-2,00 | ≤1,00 |
| X10CrSi6 | 1.4712 | ≤0,12 | 2,00-2,50 | 0,045 | 0,03 | 5,50-6,50 | ≤1,00 |
| X10CrAlSi7 | 1.4713 | ≤0,12 | 0,50-1,00 | 0,04 | 0,015 | 6,00-8,00 | ≤1,00 |
| X2CrTi12 | 1.4720 | ≤0,08 | ≤1,00 | 0,04 | 0,03 | 10,5-12,5 | ≤1,00 |
| X10CrSi13 | 1.4722 | ≤0,12 | 1,90-2,40 | 0,045 | 0,03 | 12,0-14,0 | ≤1,00 |
| 1.4724 | 1.4724 | ≤0,12 | 0,70-1,40 | 0,04 | 0,015 | 12,0-14,0 | ≤1,00 |
| 1.4742 | 1.4742 | ≤0,12 | 0,70-1,40 | 0,04 | 0,015 | 17,0-19,0 | ≤1,00 |
| X15CrN26 | 1.4749 | 0,15-0,20 | ≤1,00 | 0,04 | 0,015 | 26,0-29,0 | ≤1,00 |
| 1.4762 | 1.4762 | ≤0,12 | 0,70-1,40 | 0,04 | 0,015 | 23,0-26,0 | ≤1,00 |
| X8Cr30 | 1.4773 | ≤0,09 | ≤1,90 | 0,03 | 0,025 | 28,8-31,2 | ≤1,40 |
| X12CrNi26-5 | 1.4820 | ≤0,14 | ≤1,40 | 0,03 | 0,025 | 24,8-27,2 | ≤1,40 |
| X15CrNiSi25-4 | 1.4821 | 0,10-0,20 | 0,80-1,50 | 0,04 | 0,015 | 24,5-26,5 | ≤2,00 |
| 1.4828 | 1.4828 | ≤0,20 | 1,50-2,50 | 0,045 | 0,015 | 19,0-21,0 | ≤2,00 |
| X12CrNi23-13 | 1.4833 | ≤0,15 | ≤1,00 | 0,045 | 0,015 | 22,0-24,0 | ≤2,00 |
| X7CrNiSiNCe21-11 | 1.4835 | 0,05-0,12 | 1,40-2,50 | 0,045 | 0,015 | 20,0-22,0 | ≤1,00 |
| X15CrNiSi25-21 | 1.4841 | ≤0,20 | 1,50-2,50 | 0,045 | 0,015 | 24,0-26,0 | ≤2,00 |
| 1.4845 | 1.4845 | ≤0,10 | ≤1,50 | 0,045 | 0,015 | 24,0-26,0 | ≤2,00 |
| X10NiCr32-20 | 1.4861 | ≤0,12 | ≤1,00 | 0,045 | 0,03 | 19,0-22,0 | ≤1,50 |
| X8NiCrSi38-18 | 1.4862 | ≤0,10 | 1,50-2,50 | 0,03 | 0,03 | 17,0-19,0 | 0,80-1,50 |
Bu kategoriyi kapsayan standartlar
25- DIN / EN34 kalite
- JIS26 kalite
- KS24 kalite
- UNS23 kalite
- ASTM19 kalite
- AISI / SAE18 kalite
- AFNOR15 kalite
- GOST15 kalite
- GB14 kalite
- PN14 kalite
- BS12 kalite
- UNE11 kalite
- SAE AMS11 kalite
- ISO10 kalite
- UNI10 kalite
- ČSN10 kalite
- SS8 kalite
- STN8 kalite
- SRPS7 kalite
- STAS7 kalite
- MSZ4 kalite
- BDS4 kalite
- JUS3 kalite
- ABNT NBR1 kalite
- AS / NZS1 kalite
Özellik aralıkları
15| Özellik | Birim | Min | Maks | Kaliteler |
|---|---|---|---|---|
| Rm | N/mm² | 360 | 930 | 40 |
| Re | N/mm² | 175 | 735 | 39 |
| A | % | 8 | 45 | 34 |
| A5 | % | 15 | 40 | 9 |
| Z | % | 15 | 60 | 25 |
| aK | J/cm² | 10 | 20 | 4 |
| HB | — | 162 | 341 | 47 |
| HRB | — | 80 | 100 | 16 |
| HV | — | 175 | 261 | 16 |
| rho | g/cm³ | 7.39 | 8.4 | 34 |
| E | GPa | 144 | 207 | 3 |
| alpha | 10^-6/K | 10 | 19 | 5 |
| lambda | W/(m·K) | 13.8 | 31 | 4 |
| cp | J/(kg·K) | 538 | 538 | 2 |
| rho_el | nΩ·m | 946 | 1242 | 2 |
Bu kategoride kayıtlı değere sahip 47 kalite baz alınarak hesaplanmıştır.
Bileşim aralığı
19| Özellik | Birim | Min | Maks | Kaliteler |
|---|---|---|---|---|
| B | % | 0.001 | 0.01 | 4 |
| C | % | 0.03 | 0.85 | 62 |
| N | % | 0.05 | 0.5 | 22 |
| Al | % | 0.025 | 4 | 13 |
| Si | % | 0.3 | 3.5 | 62 |
| P | % | 0.02 | 0.25 | 60 |
| S | % | 0.01 | 0.09 | 60 |
| Ti | % | 0.15 | 2.35 | 8 |
| V | % | 0.1 | 0.5 | 5 |
| Cr | % | 1.5 | 31.2 | 61 |
| Mn | % | 0.2 | 10 | 61 |
| Fe | % | 5 | 45.64 | 6 |
| Co | % | 1 | 21 | 5 |
| Ni | % | 0.5 | 68.5 | 51 |
| Cu | % | 0.3 | 0.5 | 8 |
| Nb | % | 0.2 | 4.2 | 9 |
| Mo | % | 0.3 | 18 | 15 |
| Ce | % | 0.03 | 0.1 | 3 |
| W | % | 0.75 | 3 | 6 |
Bu kategoride kayıtlı değere sahip 62 kalite baz alınarak hesaplanmıştır.