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6061-T6 aluminium standard heat treating process. T6 temper 6061 has been treated to provide the maximum precipitation hardening (and therefore maximum yield strength) for a 6061 aluminium alloy. It has an ultimate tensile strength of at least 290 MPa (42 ksi) and yield strength of at least 240 MPa (35 ksi).
Both Rotella T4 15W-40 conventional and, Rotella T6 5W-40 and 15w-40 Synthetic both list the JASO MA/MA 2 standard; this information can be found on the bottle adjacent to the SAE/API rating stamp. JASO is an acronym that stands for Japanese Automotive Standards Organization. Note that the 10W-30 conventional oil does not list JASO-MA.
The temper designation follows the cast or wrought designation number with a dash, a letter, and potentially a one to three digit number, e.g. 6061-T6. The definitions for the tempers are: [5] [6]-F : As fabricated-H : Strain hardened (cold worked) with or without thermal treatment -H1 : Strain hardened without thermal treatment
T6 69500 26200 255 285 14 90 n.b. EN AW-6056 AlSi1MgCuMn T78 69000 25900 330 355 n.b. 105 n.b. EN AW-6060 AlMgSi 0 69000 25900 50 100 27 25 n.b. T1 69000 25900 90 150 25 45 n.b. T4 69000 25900 90 160 20 50 40 T5 69000 25900 185 220 13 75 n.b. T6 69000 25900 215 245 13 85 65 EN AW-6061 AlMg1SiCu T4 70000 26300 140 235 21 65 60 EN AW-6106 AlMgSiMn
Aluminium–scandium alloys (AlSc) are aluminum alloys that consist largely of aluminium (Al) and traces of scandium (Sc) as the main alloying elements.In principle, aluminium alloys strengthened with additions of scandium are very similar to traditional nickel-base superalloys in that both are strengthened by coherent, coarsening resistant precipitates with an ordered L1 2 structure.
The starting material is primary aluminium; in contrast to other cast aluminium alloys, secondary aluminium (made from scrap) is not used because it reduces elongation and toughess at break. The AlCu cast alloys are prone to hot cracking and are used in the T4 and T6 hardening states. [14]