EN 10250-4 Grade X20Cr13 Baja Dipanaskan dan Dipemanas – Tinggi Kekuatan, Tahan Korosi
Baja X20Cr13 setara dengan X 20 Cr 13 menurut DIN 17440:1985-07. Digunakan untuk bagian konstruksi dengan kekuatan lebih tinggi dan beban mekanis lebih tinggi, seperti poros, shaft, komponen pompa, tongkat piston, konus klep, jarum nozel, propeller kapal, serta bar pemukul dan alat bedah. Tahan korosi yang baik terhadap air dan uap (daun turbine). Baja ini dapat difinishing cermak.
Properti
Umum
| Properti | Suhu | Nilai |
|---|
| Kepadatan | 20.0 °C | 7.7 - 7.71 g/cm³ |
Mekanika
| Properti | Suhu | Nilai | Komentar |
|---|
| Modulus elastis | 20.0 °C | 215 - 222 GPa | |
| 100.0 °C | 212 - 216 GPa | |
| 200.0 °C | 205 - 209 GPa | |
| 300.0 °C | 200 - 201 GPa | |
| 400.0 °C | 190 - 192 GPa | |
| 500.0 °C | 183 GPa | |
| 600.0 °C | 174 GPa | |
| Regangan | 20.0 °C | 12 - 13 % | |
| Rasio Poisson | 23.0 °C | 0.3 [-] | Typical for Martensitic Stainless Steel |
| Modulus geser | 23.0 °C | 77 GPa | Typical for Martensitic Stainless Steel |
| Tegangan tarik | 20.0 °C | 700 - 950 MPa | |
| Tegangan leleh Rp0.2 | 20.0 °C | 500 - 600 MPa | |
| 100.0 °C | 460 - 515 MPa | |
| 150.0 °C | 445 - 495 MPa | |
| 200.0 °C | 430 - 475 MPa | |
| 250.0 °C | 415 - 460 MPa | |
| 300.0 °C | 395 - 440 MPa | |
| 350.0 °C | 365 - 405 MPa | |
| 400.0 °C | 330 - 355 MPa | |
Termal
| Properti | Suhu | Nilai | Komentar |
|---|
| Koefisien ekspansi termal | 20.0 °C | 1.02E-5 1/K | |
| 100.0 °C | 1.05E-5 1/K | |
| 200.0 °C | 1.09E-5 - 1.1E-5 1/K | |
| 300.0 °C | 1.13E-5 - 1.15E-5 1/K | |
| 400.0 °C | 1.16E-5 - 1.2E-5 1/K | |
| 500.0 °C | 1.2E-5 1/K | |
| 600.0 °C | 1.22E-5 1/K | |
| Titik leleh | | 1370 - 1530 °C | Typical for Martensitic Stainless Steel |
| Kapasitas panas spesifik | 20.0 °C | 439 - 460 J/(kg·K) | |
| 100.0 °C | 474 J/(kg·K) | |
| 200.0 °C | 498 J/(kg·K) | |
| 300.0 °C | 517 J/(kg·K) | |
| 400.0 °C | 538 J/(kg·K) | |
| 500.0 °C | 564 J/(kg·K) | |
| 600.0 °C | 598 J/(kg·K) | |
| Konduktivitas termal | 20.0 °C | 24.6 - 30 W/(m·K) | |
| 100.0 °C | 24.7 W/(m·K) | |
| 200.0 °C | 25 W/(m·K) | |
| 300.0 °C | 25.2 W/(m·K) | |
| 400.0 °C | 25.5 W/(m·K) | |
| 500.0 °C | 25.8 W/(m·K) | |
| 600.0 °C | 26 W/(m·K) | |
| Difusivitas termal | 20.0 °C | 7.3 mm²/s | |
| 100.0 °C | 6.4 mm²/s | |
| 200.0 °C | 6.1 mm²/s | |
| 300.0 °C | 5.8 mm²/s | |
| 400.0 °C | 5.4 mm²/s | |
| 500.0 °C | 4.8 mm²/s | |
| 600.0 °C | 4.1 mm²/s | |
Listrik
| Properti | Suhu | Nilai |
|---|
| Resistivitas listrik | 20.0 °C | 5.87E-7 Ω·m |
| 100.0 °C | 6.55E-7 Ω·m |
| 200.0 °C | 7.38E-7 Ω·m |
| 300.0 °C | 8.19E-7 Ω·m |
| 400.0 °C | 8.96E-7 Ω·m |
| 500.0 °C | 9.7E-7 Ω·m |
| 600.0 °C | 1.04E-6 Ω·m |
Properti Kimia
| Properti | Nilai |
|---|
| Karbon | 0.16 - 0.25 % |
| Kromium | 12 - 14 % |
| Mangan | 1.5 % |
| Fosfor | 0.04 % |
| Silikon | 1 % |
| Sulfur | 0.03 % |
