(SK85) SK5 Carbon Steel Properties, Composition & Equivalent
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กลุ่ม: Carbon Steel
การให้คะแนนประสิทธิภาพ
Performance Radar
| สมบัติ | Rating |
|---|---|
| Strength | 5 / 10 |
| Corrosion Res. | 3 / 10 |
| Lightweight | 5 / 10 |
| Machinability | 6 / 10 |
| Affordability | 9 / 10 |
| Heat Res. | 7 / 10 |
องค์ประกอบ
สมบัติทางกล
| ความแข็ง (ร็อกเวลล์) |
องค์ประกอบทางเคมี
| ธาตุ | เปอร์เซ็นต์ (%) |
|---|---|
| C | 0.80-0.90 |
| Mn | 0.10-0.50 |
| Si | 0.10-0.35 |
| P, ≤ | 0.030 |
| S, ≤ | 0.030 |
| Steel Name | C80U; C90U |
| Designation | C80U; C90U |
| Carbon Steel | SK5 (SK85) |
| Steel Type (UNS) | W1 (T72301); 1086 |
| Steel Name (Material Number) | C80U (1.1525, C90U (1.1535); C85W (1.1830) |
ซื้อได้ที่ไหน (SK85) SK5 Carbon Steel Properties, Composition & Equivalent
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คำอธิบาย
SK5 steel (SK85 material) is a carbon tool steel commonly used in Japan. After quenching and tempering, it has high hardness and good wear resistance, but the hardness decreases at high temperature. It is often used as a material for tools such as hammers and saws. SK85 is the name of the new JIS G4401 standard to replace the old name SK5. But the name SK5 is still widely used in Japan. The density of SK85 tool steel is 7.84 g/cm3, the annealing hardness is ≤207 HB (annealing temperature is 730-760 °C slow cooling), and the quenching and tempering hardness of the specimen is ≥ 59 HRC (quenching temperature 780 °C, water cooling; tempering temperature 180 °C, air cooling).