ASTM A999/A999M-04a - 1.7.2004
 
1. Scope

1.1 This specification covers a group of general requirements that, unless otherwise specified in an individual specification, shall apply to the ASTM product specifications noted below.

1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. 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, the purchase order shall prevail.

1.3 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 is to be used independently of the other without combining values in any way. The inch-pound units apply unless the "M" designation (SI) of the product specification is specified in the order.

Note 1—The dimensionless designator NPS (nominal pipe size) is used in this standard for such traditional terms as "nominal diameter," "size," " nominal bore," and "nominal size."

1.4 The following precautionary statement pertains only to the test method portion, Section 22, of this specification: 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.

 
2. Referenced Documents

A426/A426M-25

Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service

E213-22

Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing

A608/A608M-20

Standard Specification for Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures

A700-14(2019)

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

A751-25

Standard Test Methods and Practices for Chemical Analysis of Steel Products

A949-A949M-01(2005)

Standard Specification for Spray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe

A872/A872M-21

Standard Specification for Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for Corrosive Environments

A943-A943M-01(2005)

Standard Specification for Spray-Formed Seamless Austenitic Stainless Steel Pipes

A1058-19

Standard Test Methods for Mechanical Testing of Steel Products´Metric

D3951-18(2023)

Standard Practice for Commercial Packaging

A358/A358M-24a

Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications (Includes all amendments and changes 1/27/2025).

A369/A369M-24

Standard Specification for Carbon and Ferritic Alloy Steel Forged and Bored Pipe for High-Temperature Service

A376/A376M-22

Standard Specification for Seamless Austenitic Steel Pipe for High-Temperature Service

A409/A409M-24

Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

A312/A312M-25

Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

A333/A333M-24

Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness

E273-25

Standard Practice for Ultrasonic Testing of the Weld Zone of Welded Pipe and Tubing

E309-24

Standard Practice for Eddy Current Examination of Steel Tubular Products

E426-16(2021)

Standard Practice for Electromagnetic (Eddy Current) Examination of Seamless and Welded Tubular Products, Titanium, Austenitic Stainless Steel and Similar Alloys

E570-25

Standard Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

A335/A335M-26

Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

A370-26

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

A778-01

Standard Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products

A790/A790M-24

Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

A813/A813M-24

Standard Specification for Single- or Double-Welded Austenitic Stainless Steel Pipe

A814-A814M-15

Standard Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe

A928/A928M-14(2025)

Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

A941-26a

Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys (Includes all amendments and changes 4/15/2026).

A954-02

Standard Specification for Austenitic Chromium-Nickel-Silicon Alloy Steel Seamless and Welded Pipe (Withdrawn 2005)

A994-24

Standard Guide for Editorial Procedures and Form of Product Specifications for Steel, Stainless Steel, and Related Alloys

A451/A451M-20

Standard Specification for Centrifugally Cast Austenitic Steel Pipe for High-Temperature Service