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

ASTM A209/A209M無縫碳鉬合金鋼鍋爐和過熱器管標準規範。

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規範涵蓋了無縫碳鉬合金鋼鍋爐和過熱器管。作為煉鋼實踐，鋼材。給出了鋼所需的化學成分。機械性能要求包括拉伸要求和硬度要求。應對所提供的材料進行不同的試驗程序，應對不超過50根管子的試樣進行一次張力試驗，應對一根成品管每端的試樣進行平整試驗，對一根成品管子每端的試件進行擴口試驗，並對每批兩根管子進行布氏或洛氏硬度試驗。

What is a 209 material specification?  什麽是209材料規格？ 

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.

根據搜索結果，似乎沒有被廣泛認可或引用的特定“209材料規格”。“209”一詞出現在各種背景下，包括建築材料的骨料規格、顆粒回填、金屬材料的壓縮試驗，甚至起重設備。

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.

如果沒有更具體的信息或背景，很難就“209材料規範”提供明確的答案。建議提供更多細節或澄清您所指的具體行業或應用，以便獲得更準確的答複。

Scope範圍

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

1.1本規範涵蓋了幾種最小壁厚等級的無縫碳鉬合金鋼、鍋爐和過熱器管。

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本規範涵蓋外徑為1/2至5英寸[12.7至127毫米]的管子，最小壁厚為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提供了一項可選的補充要求，如有需要，應在訂單中予以說明。

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-磅單位或國際單位表示的值應單獨視為標準值。在文本中，國際單位製顯示在括號中。每個係統中所述的值不是完全等效的；因此，每個係統都必須獨立使用。將兩個係統的值結合起來可能會導致不符合規範。除非訂單中指定了本規範的“M”名稱，否則應采用英寸-磅單位。

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本國際標準是根據世界貿易組織技術性貿易壁壘委員會發布的《關於製定國際標準、指南和建議的原則的決定》中確立的國際公認的標準化原則製定的。

Chemical Components (%) of ASTM A209    ASTM A209的化學成分（%）

All Mechanical Properties Tensile Requirements and Hardness of   ASTM A209的所有機械性能、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.
• 壓扁試驗——應對每批成品管的每一端進行一次壓扁試驗，而不是用於擴口試驗的管子。
• 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.
• 擴口試驗——應對每批成品管（而不是用於壓扁試驗的管子）兩端的試樣進行一次擴口試驗。

Materials and Manufacture:材料和製造：

• The Steel shall be killed.
• 鋼材應該是鎮靜的
• The Tubes shall be made by the seamless process and shall be either hot-finished or cold finished, as specified.
• 管子應采用無縫工藝製造，並應按規定進行熱處理或冷處理。
• 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].
• 熱處理——熱成品管應在1200°F[650°C]或更高的溫度下進行熱處理。最終冷精加工後，冷精加工管應在1200°F[650°C]或更高的溫度下進行熱處理，或者管材可以在完全退火、等溫退火或正火和回火狀態下提供。如果以正火和回火狀態提供，最低溫度應為1200°F[650°C]。

Note:注：

• Mill test certificates will be issued according to EN10204.3.
• 工廠測試證書將根據EN10204.3頒發。
• All tubes shall be supplied as per applicable ASTM A209 /A209M Specification.
• 所有管子應按照適用的ASTM A209/A209M規範供應。