Metallurgi

Ämnesområden: Gjut- och tackjärn
Kommittébeteckning: SIS/TK 130 (Gjutet järn och stål)
Källa: CEN
Svarsdatum: den 23 maj 2018
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This document defines grades and the corresponding requirements for malleable cast irons.

This document specifies five grades of whiteheart malleable cast iron and nine grades of blackheart malleable cast iron, based on mechanical properties measured on cast samples (which are test pieces).

This document specifies Brinell hardness values determined only when these values are requested by the purchaser.

This document does not cover technical delivery conditions for malleable cast iron castings. Reference should be made to EN 1559-1 [3] and EN 1559-3 [4].

This document does not cover chemical composition, except phosphorus (see Clause 6).

Kommittébeteckning: SIS/TK 123 (Mekanisk provning)
Källa: CEN
Svarsdatum: den 5 jun 2018
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This International Standard specifies a method for determining the ability of metallic materials to undergo plastic deformation in bending.

This International Standard applies to test pieces taken from metallic products, as specified in the relevant product standard. It is not applicable to certain materials or products, for example tubes in full section or welded joints, for which other standards exist.

Kommittébeteckning: SIS/TK 133 (Pulvermetallurgi)
Källa: CEN
Svarsdatum: den 11 jun 2018
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This document defines terms relating to powder metallurgy. Powder metallurgy is the branch of metallurgy which relates to the manufacture of metallic powders, or of articles made from such powders with or without the addition of non-metallic powders, by the application of forming and sintering processes.

The terms are classified alphabetically under the following main headings:

1 Powders

2 Forming

3 Sintering

4 Post-sintering treatments

5 Powder metallurgy materials

NOTE Additional information on certain of the terms defined can be found in the standards given in parentheses at the end of certain definitions. These are listed in the Bibliography.

Kommittébeteckning: SIS/TK 142 (Konstruktionsstål)
Källa: ISO
Svarsdatum: den 27 jun 2018
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1.1 This international standard specifies the requirements for weldable high yield strength plates and wide flats for cold forming.

1.2 This international standard does not apply to weldable structural steels, whether or not of special quality, which are covered by other International Standards, namely:

— structural steels (all parts of ISO 630);

— high yield strength flat steel products (ISO 4950-1, ISO 4950-2 and ISO 4950-3);

— hot-rolled steel sheet of higher yield strength with improved formability (ISO 5951);

— sheet and strip: refer to ISO/TC 17/SC 12 "Continuous mill flat rolled products";

— tubular products; refer to ISO/TC 5/SC 1 "Steel tubes".

NOTE Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO Web site.