Article | REF: AM3683 V1

Thermoplastic injection molds. Choice of steels

Author: Thomas MUNCH

Publication date: April 10, 2013

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2. Influence of steel manufacturing process on properties

As explained above, steel properties are determined by heat treatment, chemical composition, chemical homogeneity and precipitate conformation.

The production process affects chemical homogeneity on the one hand, and the size and distribution of metallurgical components on the other.

2.1 Conventional metallurgy

Figure 2 shows a micrograph of an X35CrMoV5 steel in which the heterogeneities are visible as lighter bands: the composition of the steel in the lighter bands is different from that in the darker bands.

Some heterogeneity is inevitable. The steelmaker's know-how and the treatments that precede...

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Influence of steel manufacturing process on properties