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硬质合金牌号 第2部分:凿岩及工程用硬质合金牌号 Grades of cemented carbide— Part 2:Grades of cemented carbide for rock drilling and engineering ICS 77.160 CCS H 70 中华人民共和国国家标准 GB/T 18376.2—2024 代替 GB/T 18376.2—2014 2024-11-2 8发布 2025-06-0 1实施 国家市场监督管理总局 国家标准化管理委员会 发 布 目 次 前言 ····································································································· Ⅲ 引言 ····································································································· Ⅳ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 1 4 牌号表示规则及分类代号 ············································································ 1 4.1 牌号表示规则 ···················································································· 1 4.2 分类代号 ························································································· 1 5 技术要求 ······························································································ 2 5.1 化学成分、物理与力学性能 ····································································· 2 5.2 金相组织结构 ···················································································· 3 5.3 相同牌号硬质合金物理与力学性能的极差 ······················································ 3 6 试验方法与检验规则 ················································································· 4 7 硬质合金牌号材质的典型值 ·········································································· 4 GB/T 18376.2—2024 Ⅰ
GB-T 18376.2-2024 硬质合金牌号 第2部分 凿岩及工程用硬质合金牌号
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