ALLOY 1100
Alternative Designations : AS 1100; JIS A1100P; NF 1100 (formerly NF A45).
Note : Profiles products are routinely produced to AA specifications, but other National Standards may be met on request.
Chemical Composition :
| Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Others | Al | |
|---|---|---|---|---|---|---|---|---|---|---|
| Each | Total | |||||||||
| 0.95 Si + Fe | 0.05 – 0.20 | 0.05 | – | – | 0.1 | – | 0.05 | 0.15 | 99.0 min | |
(% max except where a range is given)
Characteristics :
| Corrosion Resistance | Very Good |
| Anodising | Poor |
| Formability | Excellent |
| Machinability | Poor |
| Weldability | Excellent |
| Brazcability | Excellent |
Typical Uses : General sheet metal work where moderate strength is adequate, lightly stressed panels; flashings; name plates; heat exchangers; equipment and containers for food and chemical industries; light reflectors.
Note : Special grades are available for deep drawing low earing spinning.
Note : H2-temper designation indicate that a different process has been used to achieve mechanical characteristics similar to those of the corresponding HI-tempers. However, property limits of H12-tempers differ from the above in that the Maximum Tensile Strength and Minimum Yield Strength provisions do not apply. Where required, material supplied in H2-tempers can be produced to meet the mechanical property limits of the equivalent H1-tempers.
Modulus of Elasticity : 69,000 Mpa
Mechanical Properties (To ASTM B209M Standards)
| Temper | Thickness (mm) | UTS (N/mm2) | Yeild (N/mm2) | Elongation in 50mm (%) | Bend Radius | ||
|---|---|---|---|---|---|---|---|
| Over | Up to | Min | Max | Min | Min | 180o | |
| “O” | 0.32 | 0.63 | 75 | 105 | 25 | 17 | 0t |
| 0.63 | 1.20 | 75 | 105 | 25 | 22 | 0t | |
| 1.20 | 6.30 | 75 | 105 | 25 | 30 | 0t | |
| H12 | 0.40 | 0.63 | 95 | 130 | 75 | 3 | 0t |
| 0.63 | 1.20 | 95 | 130 | 75 | 5 | 0t | |
| 1.20 | 6.30 | 95 | 130 | 75 | 8 | 0t | |
| H14 | 0.32 | 0.63 | 110 | 145 | 95 | 2 | 0t |
| 0.63 | 1.20 | 110 | 145 | 95 | 3 | 0t | |
| 1.20 | 6.30 | 110 | 145 | 95 | 5 | 0t | |
| H16 | 0.32 | 0.63 | 130 | 165 | 115 | 2 | 4t |
| 0.63 | 1.20 | 130 | 165 | 115 | 3 | 4t | |
| 1.20 | 4.00 | 130 | 165 | 115 | 4 | 4t | |
| H18 | 0.32 | 0.63 | 150 | – | – | 1 | – |
| 0.63 | 1.20 | 150 | – | – | 2 | – | |
| 1.20 | 3.20 | 150 | – | – | 4 | – | |
Welding : 1100 is readily welded by the TIG and MIG processes. Commonly used filler alloys are 4043 and 1050. 4043 gives a greater weld strength, but if the assembly is to be anodized, 1050 filler metal will give a closer color match.
1100 may also be gas welded or resistance welded, but the resulting joints are not as strong or as corrosion resistant as the inert gas welded joints. Moreover, gas welding could result in excessive heat distortion and, in thinner gauges, may burn through. It is essential that all traces of flux used in welding or brazing are removed by scrubbing with hot water upon completion.
Annealing : 350°C ± 5°C, until all parts have reached the annealing temperature.
Weight Calculation : Weight per square meter in kilogrammes: 2.71 x thickness in mm.