ASTM A209/A209M Standard Specification for Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes.

ASTM A209/A209M无缝碳钼合金钢锅炉和过热器管标准规范。

ASTM A209/A209M specification covers seamless carbon-molybdenum alloy-steel boiler and superheater tubes. As a steel making practice, the steel material shall be killed. The required chemical composition for steel is given. The mechanical property requirements include tensile requirements and hardness requirements. Different test procedure shall be performed on the material presented, one tension test shall be made on a specimen for lots of not more than 50 tubes, one flattening test shall be made on specimens from each end of one finished tube, one flaring test shall be made on specimens from each end of one finished tube, and Brinell or Rockwell hardness tests shall be made from two tubes from each lot.

ASTM A209/A209M规范涵盖了无缝碳钼合金钢锅炉和过热器管。作为炼钢实践，钢材。给出了钢所需的化学成分。机械性能要求包括拉伸要求和硬度要求。应对所提供的材料进行不同的试验程序，应对不超过50根管子的试样进行一次张力试验，应对一根成品管每端的试样进行平整试验，对一根成品管子每端的试件进行扩口试验，并对每批两根管子进行布氏或洛氏硬度试验。

What is a 209 material specification?  什么是209材料规格？ 

Based on the search results, it seems that there is no specific "209 material specification" that is widely recognized or referenced. The term "209" appears in various contexts, including aggregate specifications for construction materials, granular backfill, compression tests of metallic materials, and even elevating devices.

根据搜索结果，似乎没有被广泛认可或引用的特定“209材料规格”。“209”一词出现在各种背景下，包括建筑材料的骨料规格、颗粒回填、金属材料的压缩试验，甚至起重设备。

Without more specific information or context, it is difficult to provide a definitive answer regarding a "209 material specification." It is recommended to provide additional details or clarify the specific industry or application you are referring to in order to receive a more accurate response.

如果没有更具体的信息或背景，很难就“209材料规范”提供明确的答案。建议提供更多细节或澄清您所指的具体行业或应用，以便获得更准确的答复。

Scope范围

1. 1. This specification2 covers several grades of minimum-wall-thickness, seamless, carbon-molybdenum alloy-steel, boiler and superheater tubes.

1.1本规范涵盖了几种最小壁厚等级的无缝碳钼合金钢、锅炉和过热器管。

1. 2. This specification covers tubes 1/2 to 5 in. [12.7 to 127 mm] inclusive, in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in minimum wall thickness.

1.2本规范涵盖外径为1/2至5英寸[12.7至127毫米]的管子，最小壁厚为0.035至0.500英寸[0.9至12.7毫米]。

1. 3. An optional supplementary requirement is provided and, when desired, shall be so stated in the order.

1.3提供了一项可选的补充要求，如有需要，应在订单中予以说明。

1. 4. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

1.4以英寸-磅单位或国际单位表示的值应单独视为标准值。在文本中，国际单位制显示在括号中。每个系统中所述的值不是完全等效的；因此，每个系统都必须独立使用。将两个系统的值结合起来可能会导致不符合规范。除非订单中指定了本规范的“M”名称，否则应采用英寸-磅单位。

1. 5. This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

1.5本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

Chemical Components (%) of ASTM A209    ASTM A209的化学成分（%）

All Mechanical Properties Tensile Requirements and Hardness of   ASTM A209的所有机械性能、拉伸要求和硬度

• Flattening Test – One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
• 压扁试验——应对每批成品管的每一端进行一次压扁试验，而不是用于扩口试验的管子。
• Flaring Test – One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
• 扩口试验——应对每批成品管（而不是用于压扁试验的管子）两端的试样进行一次扩口试验。

Materials and Manufacture:材料和制造：

• The Steel shall be killed.
• 钢材应该是镇静的
• The Tubes shall be made by the seamless process and shall be either hot-finished or cold finished, as specified.
• 管子应采用无缝工艺制造，并应按规定进行热处理或冷处理。
• Heat Treatment – Hot-finished tubes shall be heat treated at a temperature of 1200 °F [650 °C] or higher. Cold- finished tubes shall, after the final cold finishing, be heat treated at a temperature of 1200 °F [650 °C] or higher, or tubing may be furnished in the full-annealed, isothermal annealed, or normalized and tempered condition. If furnished in the normalized and tempered condition, the minimum tempering temperature shall be 1200 °F [650 °C].
• 热处理——热成品管应在1200°F[650°C]或更高的温度下进行热处理。最终冷精加工后，冷精加工管应在1200°F[650°C]或更高的温度下进行热处理，或者管材可以在完全退火、等温退火或正火和回火状态下提供。如果以正火和回火状态提供，最低温度应为1200°F[650°C]。

Note:注：

• Mill test certificates will be issued according to EN10204.3.
• 工厂测试证书将根据EN10204.3颁发。
• All tubes shall be supplied as per applicable ASTM A209 /A209M Specification.
• 所有管子应按照适用的ASTM A209/A209M规范供应。