ASTM A370

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Standard Test Methods and Definitions for Mechanical Testing of Steel Products

2022 Edition

Published by ASTM International, 09/30/2022

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Description

ASTM A370, 2022 Edition – Standard Test Methods and Definitions for Mechanical Testing of Steel Products

ASTM A370 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.

The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

When these test methods are referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 or 8 in. may be reported in SI unit gauge lengths of 50 or 200 mm, respectively, as applicable. Conversely, when these test methods are referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into inch-pound units. The elongation determined in SI unit gauge lengths of 50 or 200 mm may be reported in inch-pound gauge lengths of 2 or 8 in., respectively, as applicable.

The specimen used to determine the original units must conform to the applicable tolerances of the original unit system given in the dimension table not that of the converted tolerance dimensions.

NOTE 1—This is due to the specimen SI dimensions and tolerances being hard conversions when this is not a dual standard. The user is directed to Test Methods A1058 if the tests are required in SI units.

Attention is directed to ISO/IEC 17025 when there may be a need for information on criteria for evaluation of testing laboratories.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

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.

For ASME Boiler and Pressure Vessel Code applications see related Specification SA-370 in Section II of that Code.

General Product Information:

Revision 2022 Edition
Document Type PDF
Document Language English
Pages 51
Publisher ASTM International (ASTM)
Status Current

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ASTM Volume

01.01: Steel–Piping, Tubing, Fittings

Featuring standards for steel pipe that requires high-temperature service, ordinary use, and other special applications, included are specifications on steel tubes for boiler and superheater tubes, general service tubes, still tubes in refinery service, heat exchanger and condenser tubes, mechanical tubing, and structural tubing. Steel casting specifications address standard properties for valves, flanges, fittings, and other pressure containing parts for high-temperature and low-temperature service.

01.02: Ferrous Castings; Ferroalloys

Volume 01.02 includes standards that describe the property requirements of steel castings used for general applications, structural purposes, and high-temperature and low-temperature service. It also features alloy-casting specifications for castings made of nickel and chromium alloys.

Other standards detail the property and testing requirements for gray and white iron castings, cast iron pipe and fittings, and ductile iron castings.

This volume also includes standards on radiographic examination of castings to be used with ASTM’s standard reference radiographs.

01.03: Steel–Plate, Sheet, Strip, Wire; Stainless Steel Bar

Under the heading of steel plate, sheet, and strip, this volume covers specifications that stress mechanical property requirements and applications. The majority of them have been adopted by the Department of Defense. Also featured are specifications that detail the properties of assorted types of steel wire and industrial sizing screens.

01.04: Steel–Structural, Reinforcing, Pressure Vessel, Railway

This volume features specifications that fix the requirements for various types of structural steel, such as high-strength, low-alloy, rolled steel floor plates, and carbon-silicon steel plates.

Some standards focus on plates and forgings used in boilers and pressure vessels, while others deal with steel for concrete reinforcement and prestressed concrete. This volume also includes specifications that set the properties for railway service rails and accessories.

01.05: Steel–Bars, Forgings, Bearing, Chain, Tool

Specifications and test methods examine the properties of various steel bars intended for specific or general applications. Standards focus on carbon and alloy steel axles, wrought carbon steel wheels, steel tires, and carbon and alloy steel forgings for railway use.

Volume 01.05 also provides standards for steel forgings and billets in assorted applications, such as pressure vessels, rotors, and general use. The remaining specifications cover steel chain, bearing steels, and tool steels.