Heat Treatment for A356
A356 aluminum contains between 6.5-7.5% silicon as the main alloying element. Aluminum fluidity has very good flowability which allows to cast very varied and complex shaped parts. Excellent mechanical properties are obtained after the various heat treatments we propose. In addition to good corrosion resistance, Aluminum is easily weldable and can be machined easily. General use for parts that require high strength are turbines, pump bodies and structural parts. It can also be used as a replacement for 6061 aluminum alloy.
| Designation | Solution Treatment | Quenching | Aging | Tensile Strength (Rm) | Yield Strength (Rp0.2) | Ductility (A%) | Corrosion Resistance |
|---|---|---|---|---|---|---|---|
| T4 | Yes | Yes | Natural aging | 240-270 MPa (35-39 ksi) | 140-180 MPa (20-26 ksi) | 10-16% | Moderate |
| T5 | No | Direct cooling | Artificial aging | 250-280 MPa (36-41 ksi) | 160-190 MPa (23-28 ksi) | 7-12% | Good |
| T6 | Yes | Yes | Artificial aging | 290-320 MPa (42-46 ksi) | 200-240 MPa (29-35 ksi) | 3-7% | Lower |
| T61 | Yes | Yes | Artificial aging (adjusted) | 280-310 MPa (41-45 ksi) | 190-220 MPa (28-32 ksi) | 5-8% | Better than T6 |
Heat Treatment for AZ91E
Magnesium-aluminum-zinc alloy is known for having good mechanical properties. Used for automotive components such as transmission boxes and NDT electronic apparatus, auto parts such as dashboard panels, doors, and seats. In some cases, we may attain similar mechanical properties as pressure die-casted parts.
| Designation | Solution Treatment | Quenching | Aging | Tensile Strength (Rm) | Yield Strength (Rp0.2) | Ductility (A%) | Corrosion Resistance |
|---|---|---|---|---|---|---|---|
| T4 | Yes | Yes | Natural aging | 140-170 MPa (20-25 ksi) | 100-130 MPa (15-19 ksi) | 8-12% | Moderate |
| T5 | No | Direct cooling | Artificial aging | 190-220 MPa (27-32 ksi) | 130-160 MPa (19-23 ksi) | 5-10% | Good |
| T6 | Yes | Yes | Artificial aging | 220-240 MPa (32-35 ksi) | 150-180 MPa (22-26 ksi) | 3-7% | Lower |
