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Ferrous

Ferrous metallic particle testing standards are published by ISO and SAE. ISO 4551 covers sampling and sieve analysis of ferroalloys. SAE 471 covers sintered powder metal parts.

ISO 4551:1987

Ferroalloys - Sampling and sieve analysis

Specifies the methods of sampling, sample preparation and sieve analysis for the determination of the size distribution in a consignment or a lot af all types of ferroalloys of particle size equal to or greater than 40 m.

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SAE J 471-1973 (SAE J471-1973)

Sintered Powder Metal Parts: Ferrous

Powder metal (P/M) parts are manufactured by pressing metal powders to the required shape in a precision die and sintering to produce metallurgical bonds between the particles, thus generating the appropriate mechanical properties. The shape and mechanical properties of the part may be subsequently modified by repressing or by conventional methods such as machining and/or heat treating. While powder metallurgy embraces a number of fields wherein metal powders may be used as raw materials, this standard is concerned primarily with information relating to mechanical components and bearings produced from iron-base materials.

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