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Manganese

Description

General

Manganese is is used for alloys. In steel it improves the strength, toughnes, hardness and wear resistance. With aluminium and with copper it forms highly ferromagnetic alloys. Manganese is gray-white hard and very brittle. It colours glass blue and decolours green glass (iron impurities)

Properties

Chemical properties

Minimum value Maximum value Unit Sources
%
%

Electrical properties

Minimum value Maximum value Unit Sources
kV/mm
%
-1.19 1.45 V Idemat 2003
Ohm.mm²/m

Manufacturing Properties

Minimum value Maximum value Unit Sources

Mechanical properties

Minimum value Maximum value Unit Sources
MPa
MPa
MPa
7210 7440 kg/m³ Idemat 2003
12 12 % Idemat 2003
MPa
J/cm
MPa
MPa
MPa
MPa
MPa

Optical properties

Minimum value Maximum value Unit Sources

Thermal properties

Minimum value Maximum value Unit Sources
°C
1243 1249 °C Idemat 2003
°C
J/kg.K
W/m.K
e-6/K

Environment

3.95 mPt
0.21 Pt
5030 mELU
3.78 MJ/MJ
60.3 MJ
2.77 kg
kg
Manganese is not considered to be scarce. The resource index is 190 year. Metal content of the ore is between 20 - 51%. 90% is extracted in open mine winning. Main producing countries are CIS (31%), South-Africa (18%), Gabon (14%), Australia (12%). The transport is assumed to go by sea-ships. Large quantities of Manganese containing nodules on the ocean floors promise a enormous source of Manganese for the future

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