ASTM A694 Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service

ASTM A694高壓輸送用管法蘭、配件、閥門和零件用碳素鋼和合金鋼鍛件規範

ASTM A694 is the standard specification for carbon and alloy steel forgings for pipe flanges, fittings, valves, and parts for high-pressure transmission service which are manufactured for use with high-strength transmission-service pipe. There are 9 steel grades specified which are all within Metals-Piping’s manufacture & supply capability: ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70. All grades shall be furnished suitable for field welding and be free of welding-repair. The high-strength A694 flanges, fittings or valves are commonly seen in oil & gas wellhead systems, offshore drilling platforms, as well as long-distance high-pressure oil & gas transmission pipelines.

ASTM A694是用於高壓輸送服務的管道法蘭、配件、閥門和零件的碳鋼和合金鋼鍛件的標準規範，這些鍛件是為高強度輸送服務管道製造的。規定了9種鋼種，均在金屬管道的製造和供應能力範圍內：ASTM A694 F42、F46、F48、F50、F52、F56、F60、F65、F70。所有等級應適合現場焊接，且無需焊接修複。高強度A694法蘭、配件或閥門常見於油氣井口係統、海上鑽井平台以及長距離高壓油氣輸送管道。

Scope範圍

1. 1. This specification covers forged or rolled steel pipe flanges, forged fittings, valves, and parts suitable for use with high-strength transmission-service pipe. Included are flanges, fittings, and similar parts ordered either to dimensions specified by the purchaser or to ASME or MSS dimensional standards referenced in Section 2.

1.1本規範涵蓋適用於高強度輸送服務管道的鍛造或軋製鋼管法蘭、鍛造配件、閥門和零件。包括按照買方規定的尺寸或第2節中引用的ASME或MSS尺寸標準訂購的法蘭、配件和類似零件。

1. 2. Several grades of material, based on minimum yield strength requirements, are covered, as indicated in Table 1.

1.2根據最低屈服強度要求，涵蓋了幾個等級的材料，如表1所示。

1. 3. Supplementary Requirements are provided. Supplementary Requirement S1 is provided for use when purchaser approval is required for repair welding.

1.3提供補充要求。當需要買方批準進行補焊時，提供補充要求S1。

1. 4. This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.

1.4本規範以英寸-磅單位和國際單位製表示。但是，除非訂單規定了適用的“M”規格名稱（國際單位製），否則材料應以英寸-磅單位提供。

1. 5. The values stated in either SI units or inch-pound 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 standard.

1.5以國際單位製或英寸-磅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標準。

ASTM A694 F65 weld neck flanges, 16″ RTJ 600# SCH80, MSS SP 44.  ASTM A694 F65焊接頸法蘭，16英寸RTJ 600#SCH80，MSS SP 44。

ASME B16.11 forged tee 3000# NPT, ASTM A694 F52, Galvanized.  ASME B16.11鍛造三通3000#NPT，ASTM A694 F52，鍍鋅。

Minimum yield strength of ASTM A694  ASTM A694的最小屈服強度

Units 單元

The standard available in two units, foot-pound units and International Metric (SI) units. However, the material shall be supplied in feet-pound units unless the ”metric” code (SI unit) is specified in the order.

標準有兩種單位，英尺磅單位和國際公製（SI）單位。但是，除非訂單中指定了“公製”代碼（SI單位），否則材料應以英尺磅為單位供應。

Reference Standard參考標準

In addition to the reference standards listed in Specification A961, the following standards also apply to this specification.

除規範A961中列出的參考標準外，以下標準也適用於本規範。

ASTM Standards:  ASTM標準：

• A53/A53M Specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless·
• A53/A53M黑色和熱浸鍍鋅焊接無縫鋼管規範
• A106 Specification for Seamless Carbon Steel Pipe for High-Temperature Service·
• A106高溫用無縫碳鋼管規範
• A381 Specification for Metal-Arc-Welded Steel Pipe for Use with High-Pressure Transmission Systems·
• A381高壓輸電係統用金屬電弧焊鋼管規範
• A707/A 707M Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service·
• A707/A 707M低溫用鍛造碳鋼和合金鋼法蘭規範
• A788 Specification for Steel Forgings, General Requirements·
• A788鋼鍛件規範，一般要求
• A961 Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications·
• A961管道用鋼法蘭、鍛造配件、閥門和零件的通用要求規範

ASME Standards:  ASME標準：

• ASME B 16.5 Steel Pipe Flanges and Flanged Fittings·
• ASME B 16.5鋼管法蘭和法蘭配件
• ASME B 16.9 Steel Butt-Welding Fittings·
• ASME B 16.9鋼製對焊配件
• ASME B 16.10 Face-to-Face and End-to-End Dimensions of Ferrous Valves·
• ASME B 16.10鐵質閥門的麵對麵和端到端尺寸
• ASME B 16.11 Forged Steel Fittings, Socket Welding and Threaded·
• ASME B 16.11承插焊和螺紋鍛鋼配件
• ASME B 16.28 Wrought Steel Butt-Welding Short Radius Elbows·
• ASME B 16.28鍛鋼對焊短半徑彎頭
• ASME B 16.47 Large Diameter Steel Flanges·
• ASME B 16.47大直徑鋼法蘭

MSS Standards:MSS標準：

• MSS SP-44 Standard for Steel Pipe Line Flange·
• MSS SP-44鋼製管道法蘭標準
• MSS SP-75 Specification for High-Test Welding Fittings·
• MSS SP-75高試驗焊接配件規範
• MSS SP-95 Swage (d) Nipples and Bull Plugs·
• MSS SP-95縮徑管和絲堵
• MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings·
• MSS SP-97整體加強鍛造支管出口配件

API Standard:API標準：

• API 5L Specification for Line Pipe·
• API 5L管線管道規範

General requirements一般要求

Materials provided in accordance with this specification shall comply with the requirements of Specification A961 and the additional requirements specified in the purchase order. If failure to comply with A961/A961M. it means material note comply with ASTM A694. And if this specification is inconsistent with the specification A 961, this specification shall be primary followed.

根據本規範提供的材料應符合規範A961的要求和采購訂單中規定的附加要求。如果不符合A961/A961M。這意味著材料注釋符合ASTM A694。如果本規範與規範A 961不一致，則應首先遵循本規範。

Manufacturing process製造過程

Melting Process製造過程

The steel material under A694 shall adopt one of the following smelting processes: open furnace, electric furnace or oxygen top-blown converter. Moreover, steel should be completely deoxidized.

A694下的鋼材應采用以下冶煉工藝之一：敞口爐、電爐或氧氣頂吹轉爐。此外，鋼應該完全脫氧。

As agreed by the buyer and manufacturer, the material shall be carbon steel, high strength low alloy steel or alloy steel. Further more, manufacturer shall report the chemical composition of the used material. All the produced products shall be adapted to welded on the pipes of ASTM A53, ASTM A106, ASTM A381, API 5L or the fittings of MSS SP-75.

根據買方和製造商的約定，材料應為碳鋼、高強度低合金鋼或合金鋼。此外，製造商應報告所用材料的化學成分。所有日皮视频网站的日皮视频APP下载應適用於焊接在ASTM A53、ASTM A106、ASTM A381、API 5L的管道或MSS SP-75的配件上。

Manufacturing Practice:製造實踐：

Forging materials include ingots or billets, billets, slabs or forged, rolled rods, and cut to the specified length according to the appropriate process.

鍛造材料包括鑄錠或鋼坯、鋼坯、板坯或鍛造、軋製棒材，並根據適當的工藝切割成指定的長度。

Hot working shall be sufficient to develop a wrought structure throughout the part.

熱加工應足以在整個零件上形成鍛造結構。

Flanges shall not be machined directly from plate nor from solid bar stock.

法蘭不得直接由板材或實心棒材加工而成。

Heat treatment熱處理

All forgings should be heat treated. The heat treatment of carbon steel and high-strength low-alloy steel should be normalized, normalized or tempered or quenched and tempered. The heat treatment of alloy steel is aging treatment with quenching and precipitation or aging treatment with quenching and precipitation.

所有鍛件應進行熱處理。碳鋼和高強度低合金鋼的熱處理應正火、正火或回火或調質。合金鋼的熱處理是淬火和沉澱時效處理或淬火和沉澱老化處理。

Tempering temperature shall be at least 1000 ℉ [540 ℃], precipitation heat treatment of alloy steel shall be in range from 1000 to 1225 ℉ [540 ℃ to 665 ℃].

回火溫度應至少為1000℉[540℃]，合金鋼的沉澱熱處理應在1000至1225℉[54℃至665℃]的範圍內。

Chemical composition化學成分

The smelting analysis shall be carried out in accordance with the provisions of Specification A961, and the results of the analysis shall comply with the chemical composition requirements given as below.

冶煉分析應按照規範A961的規定進行，分析結果應符合以下化學成分要求。

Chemical Requirements of ASTM A694 ASTM A694的化學要求

Note:注：
All elements listed in Table 2 shall be reported. Where no composition limit is listed, values are to be reported but no limits apply except as covered in 6.3. (Alloy steel shall conform to Grade L5 of A707/707M)

應報告表2中列出的所有元素。如果沒有列出成分限製，則應報告值，但除6.3中涵蓋的限製外，不適用任何限製。（合金鋼應符合A707/707M的L5級）

Tensile Strength抗拉強度

The mechanical properties are tested in accordance with the requirements of Specification A 961. The tensile mechanical properties of the materials are to comply with the requirements of Table 1.

機械性能按照規範A 961的要求進行測試。材料的拉伸機械性能應符合表1的要求。

Process quality, precision and appearance

工藝質量、精度和外觀

Forgings shall be free of the detrimental defects described in Specification A961.

鍛件應無規範A961中所述的有害缺陷。

Repair by Welding焊接修補

• Repair by welding of injurious defects-repair of injurious defects shall be comply with A961/A.961M·
• 有害缺陷的焊接修複應符合A961/A.961M
• Deposited weld metal shall be capable of meeting all mechanical properties upon heat treatment.·
• 堆焊金屬應能滿足熱處理後的所有機械性能。
• All forgings to be repaired by welding shall be repair welded prior to heat treatment.·
• 所有需要焊接修複的鍛件應在熱處理前進行補焊。