Magnesium Battery Sheet and Strip

a range of magnesium alloys to meet all seawater battery applications. These include the traditional commercial materials AZ31

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

Magnesium Battery Sheet and Strip