ASTM A822/A822M-20

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.
Designation:A822/A822M −20
Standard Specification for
Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic
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System Service
This standard is issued under the fixed designationA822/A822M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
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1.1 This specification covers nominal wall thickness, 2.1 ASTM Standards:
seamless, cold-drawn carbon steel tubing intended for use in A450/A450M Specification for General Requirements for
hydraulic systems and in other similar applications where Carbon and Low Alloy Steel Tubes
forming operations require tight radius bending and flaring. A751 Test Methods, Practices, and Terminology for Chemi-
cal Analysis of Steel Products
1.2 Tubing sizes and thicknesses usually furnished to this
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specification are ⁄8 to 3 ⁄2 in. [3.2 to 88.9 mm] in outside
3. Terminology
diameter and 0.035 to 0.134 in. [0.9 to 3.4 mm] inclusive, in
3.1 Definitions of Terms Specific to This Standard:
nominal wall thickness. Tubing having other dimensions may
3.1.1 lot—for tension and hardness test requirements—the
be furnished, provided such tubing complies with all other
term “lot” applies to all tubes, prior to cutting, of the same
requirements of this specification.
nominal diameter and wall thickness which are produced from
1.3 Mechanical property requirements do not apply to
the same heat of steel. When final heat treatment is in a
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tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015
batch-type furnace, a lot shall include only those tubes of the
in. [0.4 mm] in thickness.
same size and the same heat which are heat treated in the same
1.4 Optional supplementary requirements are provided and, furnacecharge.Whenthefinalheattreatmentisinacontinuous
when desired, shall be so stated in the order. furnace, a lot shall include all tubes of the same size and heat,
heat treated in the same furnace at the same temperature, time
1.5 The values stated in either SI units or inch-pound units
at heat, and furnace speed.
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each
4. Ordering Information
system may not be exact equivalents; therefore, each system
4.1 Orders for material to this specification should include
shall be used independently of the other. Combining values
the following, as required, to describe the desired material
from the two systems may result in non-conformance with the
adequately:
standard.
4.1.1 Quantity (feet, metres, or number of lengths),
1.6 This international standard was developed in accor-
4.1.2 Name of material (seamless tubing),
dance with internationally recognized principles on standard-
4.1.3 Manufacture (cold-drawn),
ization established in the Decision on Principles for the
4.1.4 Tube size (outside diameter and nominal wall
Development of International Standards, Guides and Recom-
thickness),
mendations issued by the World Trade Organization Technical
4.1.5 Length (specific or random),
Barriers to Trade (TBT) Committee.
4.1.6 Test report required (see Certified Test Report section
in Specification A450/A450M),
4.1.7 Specification designation, and
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
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A01.09 on Carbon Steel Tubular Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2020. Published May 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1984. Last previous edition approved in 2015 as A822/A822M – 04 Standards volume information, refer to the standard’s Document Summary page on
(2015). DOI: 10.1520/A0822_A0822M-20. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A822/A822M−20
TABLE 2 Tensile Requirements
4.1.8 End use of material.
Tensile strength, min., ksi [MPa] 45 [310]
5. General Requirements Yield strength, min., ksi [MPa] 25 [170]
Elongation, in 2 in. [or 50 mm], min., % 35
5.1 Material furnished under this specification shall con-
form to the applicable requirements of the latest edition of
Specification A450/A450M, unless otherwise provided herein.
TABLE 3 Tubing Out
...