Sunnforest Magnesium Battery Plate Strip
Sunnforest Magnesium - the Industrial Mineral Products Division of Sunnforest in China and Singapore
Magnesium Battery Sheet and Strip
Sunnforest Enterprises supply a range of magnesium alloys to meet all seawater battery applications. These include the traditional commercial materials AZ31 and AZ61, AZ31 and AZ61 are high performance alloys which are more
electrochemically reactive and generate much higher cell voltages. This results in rapid activation and short voltage transience on switching between loads,making them more suitable for the high demands required for military applications. The chemical and metallurgical conditions of all these alloys are carefully controlled to provide optimum properties
CONDITION
AZ31 and AZ61 sheet is annealed and rolled flattened.
AZ31 and AZ61 coiled strip is available as-fabricated or annealed at the user’s option.
PACKING
AZ31 and AZ61 coils are packed horizontally (eye to the sky) in sealed steel drums with silica gel dessicant bags. Drums are palletized for ease in handling.
PRODUCT AVAILABILITY
AZ31 and AZ61 are available as flat sheet or coiled strip. Special shapes may be blanked in sheet form in accordance with customers’requirements.
Minimum sheet thickness
AZ31 and AZ61 0.20mm
Maximum sheet width
AZ31 and AZ61 400 mm- 600mm
Maximum sheet length
AZ31 and AZ61 1000mm
Minimum coil gauge
AZ31 and AZ61 0.20mm
Maximum coil width
AZ31 and AZ61 200mm
CHEMICAL COMPOSITION LIMITS
AZ31
Aluminum 2.5-3.5%
Zinc 0.6-1.4%
Manganese 0.20-1.0%
AZ61
Aluminum 5.8-7.2%
Zinc 0.4-1.5%
Manganese 0.15-0.5%
Manganese 0.25%maximum
STANDARD TOLERANCES For AZ31 and AZ61
Gauge 0.25-0.35mm +/-0.025mm
0.36-0.70mm +/- 0.038mm
0.71-1.14mm +/-0.051mm
1.15-1.60mm +/- 0.064mm
1.61-2.00mm +/-0.076mm
Width up to 150mm +/-0.25mm
151-305mm +/- 0.41mm
Length up to 800mm +/-1mm
1000-1219mm +/-2.4mm
1220-2540 +/-3.2mm
Lateral Bow or Camber
Maximum in any 1 metre 8.3mm
SURFACE FINISH
Sheet or strip is normally supplied scratch brushed on both sides with a surface finish in the range 500-3125 nanometers C.L.A.
Contract resistance immediately after brushing is not more than 100 micro ohms/cm2with a contract pressure of 17 N/mm2
