ASTM A1099 / A1099M - 17

    Standard Specification for Modified Alloy Steel Forgings, Forged Bar, and Rolled Bar Commonly Used in Oil and Gas Pressure Vessels

    Active Standard ASTM A1099 / A1099M | Developed by Subcommittee: A01.22

    Book of Standards Volume: 01.01


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    1. Scope

    1.1 This specification covers modified high-strength alloy steel forgings and rolled and forged bar for oil and gas pressure vessels and oilfield equipment. See Appendix X1. Oil and gas product specifications for which this material is intended include, but are not limited to, the following:

    1.1.1 API 6A Specification for Wellhead and Christmas Tree Equipment and Errata,

    1.1.2 API RP 6AR Recommended Practice for Repair and Remanufacture of Wellhead and Christmas Tree Equipment,

    1.1.3 API 16A Specification for Drill-Through Equipment,

    1.1.4 API 16R Specification for Marine Drilling Riser Couplings,

    1.1.5 API 17D Specification for Subsea Wellhead and Tree Equipment and Errata,

    1.1.6 API 8C Specification for Drilling and Production Hoisting Equipment.

    1.2 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.

    1.3 In the case of conflict between a requirement of this specification and a requirement of referenced general specifications, this specification takes precedence. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order or contract, the purchase order or contract take precedence. The purchase order or contract requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification, for example, by the waiving of a test requirement or by making a test requirement less stringent. In the case of conflict in terminology between API standards and Terminology A941, Terminology A941 definitions shall be applied.

    1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

    1.5 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply.

    1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    1.7 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A388/A388M Practice for Ultrasonic Examination of Steel Forgings

    A534 Specification for Carburizing Steels for Anti-Friction Bearings

    A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment

    A788/A788M Specification for Steel Forgings, General Requirements

    A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys

    A961/A961M Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications

    A991/A991M Test Method for Conducting Temperature Uniformity Surveys of Furnaces Used to Heat Treat Steel Products

    A1058 Test Methods for Mechanical Testing of Steel Products--Metric

    E10 Test Method for Brinell Hardness of Metallic Materials

    E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials

    E45 Test Methods for Determining the Inclusion Content of Steel

    E110 Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers

    E112 Test Methods for Determining Average Grain Size

    E165/E165M Practice for Liquid Penetrant Examination for General Industry

    E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings

    E1444/E1444M Practice for Magnetic Particle Testing

    E1820 Test Method for Measurement of Fracture Toughness

    API Standards

    API 16A Specification for Drill-Through Equipment

    API 16R Specification for Marine Drilling Riser Couplings

    API 17D Specification for Subsea Wellhead and Tree Equipment

    API 6A Specification for Wellhead and Christmas Tree Equipment

    API 8C

    API RP 6AR

    API RP 6HT Heat Treatment and Testing of Large Cross-Section and Critical Section Components

    ASNT Standard

    ANST SNT-TC-1A


    ICS Code

    ICS Number Code 75.180.10 (Exploratory, drilling and extraction equipment); 77.140.30 (Steels for pressure purposes)

    UNSPSC Code

    UNSPSC Code 31132100(Steel forgings)


    Referencing This Standard
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    DOI: 10.1520/A1099_A1099M-17

    Citation Format

    ASTM A1099 / A1099M-17, Standard Specification for Modified Alloy Steel Forgings, Forged Bar, and Rolled Bar Commonly Used in Oil and Gas Pressure Vessels, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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