ISO 898-1:2009 碳钢和合金钢制紧固件的机械性能 第1部分：带指定特性的螺栓、螺钉和螺柱 粗牙螺纹和细牙螺纹

标准编号：ISO 898-1:2009

中文名称：碳钢和合金钢制紧固件的机械性能 第1部分：带指定特性的螺栓、螺钉和螺柱 粗牙螺纹和细牙螺纹

英文名称：Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread

发布日期：2009-04

标准范围

ISO 898-1:2009规定了碳钢和合金钢制成的螺栓、螺钉和螺柱在10°C至35°C的环境温度范围内进行试验时的机械和物理性能。符合其要求的紧固件（当螺栓、螺钉和螺柱一起考虑时使用的术语）在该环境温度范围内进行评估。有关在高温和/或低温下无法保持规定机械和物理性能的紧固件的信息。ISO 898-1:2009排除了某些不符合拉伸或扭转要求的紧固件，因为其头部的几何形状减少了头部的剪切面积，而不是螺纹中的应力面积。这些紧固件包括有或无外部驱动特征的低头紧固件、有内部驱动特征的低圆头或圆柱头紧固件或有内部驱动特征的沉头紧固件（见8）。2).适用于碳钢或合金钢制成的螺栓、螺钉和螺柱，其具有符合ISO 68-1的三角形ISO公制螺纹，具有符合ISO 965-1、ISO 965-2和ISO 965-4的螺纹公差，具有符合ISO 965-1、ISO 965-2和ISO 965-4要求的粗牙距螺纹M1,6至M39，以及符合ISO 261和ISO 262要求的直径/节距组合的细牙距螺纹M8′至M39′3。不适用于未承受拉伸应力的固定螺钉和类似螺纹紧固件（见ISO 898-5）。它没有规定焊接性、耐腐蚀性、抗剪应力、扭矩/夹紧力性能或抗疲劳性等性能的要求。

ISO 898-1:2009 specifies mechanical and physical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10 °C to 35 °C. Fasteners — the term used when bolts, screws and studs are considered all together — that conform to its requirements are evaluated at that ambient temperature range. Information is given on fasteners that do not retain the specified mechanical and physical properties at elevated temperatures and/or lower temperatures.ISO 898-1:2009 excludes certain fasteners that do not fulfil its tensile or torsional requirements because the geometry of their heads reduce the shear area in the head compared to the stress area in the thread. These include fasteners having a low head, with or without external driving feature, a low round or cylindrical head with internal driving feature or a countersunk head with internal driving feature (see 8.2).It is applicable to bolts, screws and studs made of carbon steel or alloy steel, having a triangular ISO metric screw thread according to ISO 68-1, with a coarse pitch thread M1,6 to M39, and fine pitch thread M8′1 to M39′3, with diameter/pitch combinations according to ISO 261 and ISO 262, having thread tolerances according to ISO 965-1, ISO 965-2 and ISO 965-4.It is not applicable to set screws and similar threaded fasteners not under tensile stresses (see ISO 898-5).It does not specify requirements for such properties as weldability, corrosion resistance, resistance to shear stress, torque/clamp force performance, or fatigue resistance.

标准预览图