Tape, strip, sheet 55s2a - 55Si7 - 1.5026
Technical specifications
Structural steel spring-spring. To achieve higher performance characteristics, steels alloyed with silicon, chromium and vanadium are used. A characteristic feature of such steels is the presence of carbon in them from 0.5% to 0.8%. These steels have a high yield strength, which provides high elastic properties. This is achieved by quenching, followed by an average vacation.
Percent composition, EN 10132−4-2000
| C | Si | Mn | Ni | P | S | Cr | Mo |
| 0.52 — 0.6 | 1.6 — 2 | 0.6 — 0.9 | ≤0.4 | ≤0.025 | ≤0.025 | ≤0.4 | ≤0.1 |
The limit of short-term strength, MPa (temperature 20 ° C)
- Rm (+ A) = 740 Nominal thickness 0.3 — 3 mm:
- Rm (+ QT) = 1200−1700. Nominal thickness 0.3 — 3 mm:
Limit of proportionality (yield strength for permanent deformation)
- Rp0.2 0.2% (+ A) = 600. Nominal thickness 0.3 — 3 mm:
Vickers hardness
- HV (+ A) = 230
- HV (+ QT) = 370−520
Brinell hardness
- HB: (+ S) = 280
- HB: (+ A) = 240
- HB (+ AC) = 230
Anlogistics
| EU En |
Germany DIN, WNr |
France AFNOR |
| 56Si7 | 55Si7 | 55Si7RR |
Buy
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Delivery, price
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