要約
この仕様書は、焼き入れ焼き戻しした合金鋼ソケット-頭小ねじの要件を定めています。ねじは、細粒鋼で製造され、規定された化学組成に適合する合金鋼であるものとします。ねじの機械的特性を決定するために、異なるテストを実施するものとする:引張強度またはウェッジ強度、耐荷重、降伏強度、伸び、ロックウェル硬度およびビッカース硬度。
適用範囲
1.1 この仕様書は、最小最大引張強度1220 MPaを有する、直径1.6 mmから48 mmの焼入れ焼戻しされた合金鋼六角穴付き-頭小ねじの要件を対象とする。
1.2 SI単位で記載された値は、標準とみなされる。この規格には、他の測定単位は含まれない。
注1:-この仕様書は、Specification A574のメトリックコンパニオンです。
1.3 以下の危険警告は、試験法のセクション5.1、5.6、8および12のこの仕様書部分にのみ適用される。本基準は、その使用に関連する安全上の懸念がある場合には、そのすべてに対処することを意図するものではない。適切な安全衛生慣行を確立し、使用前に規制上の制限の適用を決定することは、本基準の使用者の責任である。
この規格についてのご意見をお聞かせください。
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