More A This specification deals with both unfabricated products and fabricated products, for example, assembled steel products, structural steel fabrications, large tubes already bent or welded before galvanizing, and wire work fabricated from uncoated steel wire. Also covered here are steel forgings and iron castings incorporated into pieces fabricated before galvanizing or those too large to be centrifuged or otherwise handled to remove excess galvanizing bath metal. This abstract is a brief summary of the referenced standard.

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More A Ferritic steels shall be properly heat treated as best suits the high temperature characteristics of each grade.

Immediately after rolling or forging, the bolting material shall be allowed to cool to a temperature below the cooling transformation range.

The chemical composition requirements for each alloy are presented in details. The steel shall not contain an unspecified element for ordered grade to the extent that the steel conforms to the requirements of another grade for which that element is a specified element. The tensile property and hardness property requirements are discussed, the tensile property requirement is highlighted by a full size fasteners, wedge tensile testing.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Scope 1. Bars and wire shall be hot-wrought and may be further processed by centerless grinding or by cold drawing.

Austenitic stainless steel may be carbide solution treated or carbide solution treated and strain-hardened. When strain hardened austenitic stainless steel is ordered, the purchaser should take special care to ensure that Appendix X1 is thoroughly understood. Selection will depend upon design, service conditions, mechanical properties, and high temperature characteristics.

Other compositions will be considered for inclusion by the committee from time to time as the need becomes apparent. The supplementary requirements shall apply only when specified in the purchase order or contract. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.


ASTM A143/A143M – ホットディップ亜鉛メッキ構造鋼製品の脆化防止のための標準的なプラクティスおよび脆化の検出手順

More A Conditions of fabrication may induce a susceptibility to embrittlement in certain steels that can be accelerated by galvanizing. Open-hearth, basic-oxygen, and electric-furnace steels shall be used for galvanizing. Other materials that can be galvanized include continuous cast slabs, steel or iron castings, and wrought iron. The material shall undergo cold working and thermal treatment.







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