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

ASTM A694高压输送用管法兰、配件、阀门和零件用碳素钢和合金钢锻件规范

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是用于高压输送服务的管道法兰、配件、阀门和零件的碳钢和合金钢锻件的标准规范，这些锻件是为高强度输送服务管道制造的。规定了9种钢种，均在金属管道的制造和供应能力范围内：ASTM A694 F42、F46、F48、F50、F52、F56、F60、F65、F70。所有等级应适合现场焊接，且无需焊接修复。高强度A694法兰、配件或阀门常见于油气井口系统、海上钻井平台以及长距离高压油气输送管道。

Scope范围

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本规范涵盖适用于高强度输送服务管道的锻造或轧制钢管法兰、锻造配件、阀门和零件。包括按照买方规定的尺寸或第2节中引用的ASME或MSS尺寸标准订购的法兰、配件和类似零件。

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

1.2根据最低屈服强度要求，涵盖了几个等级的材料，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提供补充要求。当需要买方批准进行补焊时，提供补充要求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本规范以英寸-磅单位和国际单位制表示。但是，除非订单规定了适用的“M”规格名称（国际单位制），否则材料应以英寸-磅单位提供。

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以国际单位制或英寸-磅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标准。

ASTM A694 F65 weld neck flanges, 16″ RTJ 600# SCH80, MSS SP 44.  ASTM A694 F65焊接颈法兰，16英寸RTJ 600#SCH80，MSS SP 44。

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

Minimum yield strength of ASTM A694  ASTM A694的最小屈服强度

Units 单元

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.

标准有两种单位，英尺磅单位和国际公制（SI）单位。但是，除非订单中指定了“公制”代码（SI单位），否则材料应以英尺磅为单位供应。

Reference Standard参考标准

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

除规范A961中列出的参考标准外，以下标准也适用于本规范。

ASTM Standards:  ASTM标准：

• A53/A53M Specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless·
• A53/A53M黑色和热浸镀锌焊接无缝钢管规范
• A106 Specification for Seamless Carbon Steel Pipe for High-Temperature Service·
• A106高温用无缝碳钢管规范
• A381 Specification for Metal-Arc-Welded Steel Pipe for Use with High-Pressure Transmission Systems·
• A381高压输电系统用金属电弧焊钢管规范
• A707/A 707M Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service·
• A707/A 707M低温用锻造碳钢和合金钢法兰规范
• A788 Specification for Steel Forgings, General Requirements·
• A788钢锻件规范，一般要求
• A961 Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications·
• A961管道用钢法兰、锻造配件、阀门和零件的通用要求规范

ASME Standards:  ASME标准：

• ASME B 16.5 Steel Pipe Flanges and Flanged Fittings·
• ASME B 16.5钢管法兰和法兰配件
• ASME B 16.9 Steel Butt-Welding Fittings·
• ASME B 16.9钢制对焊配件
• ASME B 16.10 Face-to-Face and End-to-End Dimensions of Ferrous Valves·
• ASME B 16.10铁质阀门的面对面和端到端尺寸
• ASME B 16.11 Forged Steel Fittings, Socket Welding and Threaded·
• ASME B 16.11承插焊和螺纹锻钢配件
• ASME B 16.28 Wrought Steel Butt-Welding Short Radius Elbows·
• ASME B 16.28锻钢对焊短半径弯头
• ASME B 16.47 Large Diameter Steel Flanges·
• ASME B 16.47大直径钢法兰

MSS Standards:MSS标准：

• MSS SP-44 Standard for Steel Pipe Line Flange·
• MSS SP-44钢制管道法兰标准
• MSS SP-75 Specification for High-Test Welding Fittings·
• MSS SP-75高试验焊接配件规范
• MSS SP-95 Swage (d) Nipples and Bull Plugs·
• MSS SP-95缩径管和丝堵
• MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings·
• MSS SP-97整体加强锻造支管出口配件

API Standard:API标准：

• API 5L Specification for Line Pipe·
• API 5L管线管道规范

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.

根据本规范提供的材料应符合规范A961的要求和采购订单中规定的附加要求。如果不符合A961/A961M。这意味着材料注释符合ASTM A694。如果本规范与规范A 961不一致，则应首先遵循本规范。

Manufacturing process制造过程

Melting Process制造过程

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下的钢材应采用以下冶炼工艺之一：敞口炉、电炉或氧气顶吹转炉。此外，钢应该完全脱氧。

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.

根据买方和制造商的约定，材料应为碳钢、高强度低合金钢或合金钢。此外，制造商应报告所用材料的化学成分。所有生产的产品应适用于焊接在ASTM A53、ASTM A106、ASTM A381、API 5L的管道或MSS SP-75的配件上。

Manufacturing Practice:制造实践：

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

锻造材料包括铸锭或钢坯、钢坯、板坯或锻造、轧制棒材，并根据适当的工艺切割成指定的长度。

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

热加工应足以在整个零件上形成锻造结构。

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

法兰不得直接由板材或实心棒材加工而成。

Heat treatment热处理

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.

所有锻件应进行热处理。碳钢和高强度低合金钢的热处理应正火、正火或回火或调质。合金钢的热处理是淬火和沉淀时效处理或淬火和沉淀老化处理。

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 ℃].

回火温度应至少为1000℉[540℃]，合金钢的沉淀热处理应在1000至1225℉[54℃至665℃]的范围内。

Chemical composition化学成分

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.

冶炼分析应按照规范A961的规定进行，分析结果应符合以下化学成分要求。

Chemical Requirements of ASTM A694 ASTM A694的化学要求

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)

应报告表2中列出的所有元素。如果没有列出成分限制，则应报告值，但除6.3中涵盖的限制外，不适用任何限制。（合金钢应符合A707/707M的L5级）

Tensile Strength抗拉强度

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.

机械性能按照规范A 961的要求进行测试。材料的拉伸机械性能应符合表1的要求。

Process quality, precision and appearance

工艺质量、精度和外观

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

锻件应无规范A961中所述的有害缺陷。

Repair by Welding焊接修补

• Repair by welding of injurious defects-repair of injurious defects shall be comply with A961/A.961M·
• 有害缺陷的焊接修复应符合A961/A.961M
• Deposited weld metal shall be capable of meeting all mechanical properties upon heat treatment.·
• 堆焊金属应能满足热处理后的所有机械性能。
• All forgings to be repaired by welding shall be repair welded prior to heat treatment.·
• 所有需要焊接修复的锻件应在热处理前进行补焊。