Aluminium, BS-L
L111 Aluminium Alloy Bar & Extrusion T6511
Heat treatable aerospace aluminium alloy with very good corrosion resistance and weldability.
L111 is a medium strength extruded bar with an alloy strength somewhat higher than alloy 6061. It is not suitable for complex sections.
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L111 T6511 Aluminium Related Specifications
| Tizim / Standart | Davlat / mintaqa | Grade / Designation / Note |
| Ikki nuqtali | AQSh | No single official AA number; L111-T6511 is a BS aerospace code |
| Birlashgan Millatlar Tashkiloti | Xalqaro | No specific UNS assigned; depends on the alloy defined in the spec |
| Ingliz / Nemis | Yevropa | No unique EN AW mapping; refer to the BS L111 material specification |
| GB (BS Aerospace) | United Kingdom | L111-T6511 – aluminium alloy extruded bars/sections, T6511 temper |
| JIS | Yaponiya | No direct JIS equivalent published |
| Afnor | Fransiya | No direct AFNOR equivalent published |
Xususiyatlari
Kimyoviy tarkib
Alloy L111
BS L111 (1971)
| Kimyoviy element | % Hozir |
| Marganets (Mn) | 0.40 - 1.00 |
| Silikon (Si) | 0.70 - 1.30 |
| Magniy (Mg) | 0.50 - 1.20 |
| Mis (Cu) | 0.00 - 0.10 |
| Temir (Fe) | 0.00 - 0.50 |
| Tin (Sn) | 0.00 - 0.05 |
| Xrom (Cr) | 0.00 - 0.25 |
| Nikell (Ni) | 0.00 - 0.10 |
| Lead (Pb) | 0.00 - 0.05 |
| Titan (Ti) | 0.00 - 0.20 |
| Rux (Zn) | 0.00 - 0.20 |
| Aluminiy (Al) | Muvozanat |
Mexanik xususiyatlari
Alloy L111 - Mechanical Properties T6511 Temper for Various Dimensions
BS L111 (1971)
| Mexanik xususiyat | Qiymat |
| >20mm Proof Strength | 255 Min |
| >20mm Tensile Strength | 295 Min |
| >20mm Elongation | 7% min |
| 20mm - 150mm Proof Stress | 270 min |
| 20mm - 150mm Tensile Strength | 310 Min |
| 20mm - 150mm Elongation | 8% min |
| 150mm - 200mm Proof Stress | 240 Min |
| 150mm - 200mm Tensile Strength | 280 Min |
| 150mm - 200mm Elongation | 5% Min |
Umumiy jismoniy xususiyatlari
Alloy L111
BS L111 (1971)
| Jismoniy xususiyat | Qiymat |
| Zichlik | 2710 g/cm³ |
| Erish nuqtasi | 650 °C |
| Issiqlik kengayishi | 23.10 x 10-6/K |
| Elastiklik moduli | 70000 GPa |
| Issiqlik o'tkazuvchanligi | 167-216 W/m.K |
Ilovalar
- Aerosuzov komponentlari
- Yuqori texnologiyali ilovalar
Xususiyatlari
- Very good corrosion resistance
- Very good weldability (lowered strength values in the weld zone)
- Good machinability
- Good cold formability in T4 temper after a stabilizing heat treatment.
- Heat treatable medium high strength construction
- Medium high fatigue strength
