ASTM A519规范涵盖了几个等级的碳和合金钢机械管，无论是热生成还是冷的。
该ASTM A519规范涵盖了几个等级的碳和合金钢机械管，无论是热生成还是冷的。
应用：
机械管中使用的钢可能会铸造在铸锭中，也可以铸造。当不同等级的钢被顺序施加时，需要鉴定所得过渡材料。无缝管是一种无焊接接缝的管状产品。它通常是由热工作的钢制成的，如有必要，随后冷来制作热量的管状产品以产生所需的形状，尺寸和特性。
试管应在以下形状中提供：圆形，正方形，矩形和特殊部分。进行热分析以确定指定元素的百分比。如果使用次级熔化过程，则应从一个重新延迟的铸锭或每个初级熔体的一个重新铸造的产品中获得热分析。在指定此摘要时，将管道涂在塑形之前，先用石油膜涂层，以延迟锈蚀。它仅是信息的，而不是标准的官方部分；标准本身的全文必须用于其使用和应用。ASTM不提供任何保修明示或暗示，也不表示该摘要内容是准确，完整或最新的任何表示。
尺寸范围（mm）：
| OD（mm） | 壁厚单元（mm） | |||||||||||||
| 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | 6.5-7 | 7.5-8 | 8.5-9 | 9.5-10 | 11 | 12 | |
| φ25-φ28 | ● | ● | ● | ● | ● | ● | ||||||||
| φ32 | ● | ● | ● | ● | ● | ● | ||||||||
| φ34-φ36 | ● | ● | ● | ● | ● | ● | ||||||||
| φ38 | ● | ● | ● | ● | ● | ● | ||||||||
| φ40 | ● | ● | ● | ● | ● | |||||||||
| φ42 | ● | ● | ● | ● | ● | |||||||||
| φ45 | ● | ● | ● | ● | ● | ● | ||||||||
| φ48-φ60 | ● | ● | ● | ● | ● | ● | ● | |||||||
| φ63.5 | ● | ● | ● | ● | ● | ● | ● | |||||||
| φ68-φ73 | ● | ● | ● | ● | ● | ● | ||||||||
| φ76 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ80 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ83 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ89 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ95 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ102 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ108 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||
| φ114 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| φ121 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| φ127 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| φ133 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| φ140 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
| φ146 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
| φ152 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
| φ159 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
| φ168 | ● | ● | ● | ● | ● | ● | ● | ● | ||||||
年级：
笔记：
ASTM A519的钢级和化学成分（％）：
| 年级 | C | Mn | p≤ | s≤ | si | cr | 莫 |
|---|---|---|---|---|---|---|---|
| 1008 | ≤0.10 | 0.30-0.50 | 0.040 | 0.050 | - | - | - |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.040 | 0.050 | - | - | - |
| 1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | - | - | - |
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 | - | - | - |
| 1025 | 0.22-0.28 | 0.30-0.60 | 0.040 | 0.050 | - | - | - |
| 1026 | 0.22-0.28 | 0.60-0.90 | 0.040 | 0.050 | - | - | - |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.040 | 0.050 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.040 | 0.050 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
ASTM A519的机械性能：
| 年级 | 健康）状况 | mpa tenslle点 | 产量点 | 伸长 |
|---|---|---|---|---|
| 1020 | CW | ≥414 |
≥483 |
≥5％ |
| Sr | ≥345 | ≥448 | ≥10％ | |
| 一个 | ≥193 | ≥331 | ≥30％ | |
| n | ≥234 | ≥379 | ≥22％ | |
| 1025 | CW | ≥448 | ≥517 | ≥5％ |
| Sr | ≥379 | ≥483 | ≥8％ | |
| 一个 | ≥207 | ≥365 | ≥25％ | |
| n | ≥248 | ≥379 | ≥22％ | |
| 4130 | Sr | ≥586 | ≥724 | ≥10％ |
| 一个 | ≥379 | ≥517 | ≥30％ | |
| n | ≥414 | ≥621 | ≥20％ | |
| 4140 | Sr | ≥689 | ≥855 | ≥10％ |
| 一个 | ≥414 | ≥552 | ≥25％ | |
| n | ≥621 | ≥855 | ≥20％ |
请注意表2中的下面缩写的含义：
| 管道类型 | 管道尺寸 | 公差 | |
|---|---|---|---|
| 冷画 | OD | ≤48.3mm | ±0.40mm |
| wt | ≥60.3mm | ±1％mm | |
无缝的机械管由碳和合金钢制成，用于涉及加工或热处理的结构或其他机械目的，在这种情况下，近距离公差，光滑的饰面或确定的物理特性是重要因素。
范围
1.1该规范涵盖了几列碳和合金钢无缝机械油管。表1、2和3中列出的ANR列出的ANR。当使用焊接连接焊接机械管等级时，焊接程序应适用于炸药，组件的状况和预期服务。
1.2该规范涵盖了无缝热填充的弹性管和无缝冷合机械管，尺寸为且包括12 3/4英寸（322.8mm）的ROUND管外直径为12 3/4英寸（322.8mm），并根据需要根据需要壁厚度。
1.3试管应按照以下形状提供，如购买者指定：圆形，正方形，直角和特殊部分。
1.4提供可选性质的补充要求，并在需要时在订单中陈述。
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以英寸固定单元表示的值应被视为标准。
狗万滚球官网合金钢管包含大量碳以外的大量元素，例如镍，铬，硅，锰，钨，钨，钼，钒，以及有限的其他常见元素，例如锰，硫，硫，硅和磷。
