ASTM A822/A822M-04(2015)
(Specification)Standard Specification for Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic System Service
Standard Specification for Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic System Service
ABSTRACT
This specification covers nominal thickness, seamless, cold-drawn carbon steel tubing intended for use in hydraulic systems and in other similar applications where forming operations require tight radius bending and flaring. The tubes shall be made by the seamless process and shall be cold drawn to size. Heat treatment shall be made to the tube samples after the final cold working operation. Finished tubes shall be free of scale but may have a superficial oxide film on the surfaces. Removal of surface imperfections, such as handling marks, straightening marks, light mandrel and die marks, shallow pits, and scale pattern, will not be required provided they are within the allowable tolerances. Finished tubes shall be protected both on the outside and the inside diameter to prevent corrosion in transit. Each lot of tubes shall be subjected to the following tests: tension test, flaring test, flattening test, hardness test, and hydrostatic proof test.
SCOPE
1.1 This specification covers nominal wall thickness, seamless, cold-drawn carbon steel tubing intended for use in hydraulic systems and in other similar applications where forming operations require tight radius bending and flaring.
1.2 Tubing sizes and thicknesses usually furnished to this specification are 1/8 to 31/2 in. [3.2 to 88.9 mm] in outside diameter and 0.035 to 0.134 in. [0.9 to 3.4 mm] inclusive, in nominal wall thickness. Tubing having other dimensions may be furnished, provided such tubing complies with all other requirements of this specification.
1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.
1.4 Optional supplementary requirements are provided and, when desired, shall be so stated in the order.
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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Designation: A822/A822M −04 (Reapproved 2015)
Standard Specification for
Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic
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 3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1.1 This specification covers nominal wall thickness,
seamless, cold-drawn carbon steel tubing intended for use in 3.1.1 lot—for tension and hardness test requirements—the
hydraulic systems and in other similar applications where term “lot” applies to all tubes, prior to cutting, of the same
forming operations require tight radius bending and flaring. nominal diameter and wall thickness which are produced from
the same heat of steel. When final heat treatment is in a
1.2 Tubing sizes and thicknesses usually furnished to this
batch-type furnace, a lot shall include only those tubes of the
1 1
specification are ⁄8 to 3 ⁄2 in. [3.2 to 88.9 mm] in outside
same size and the same heat which are heat treated in the same
diameter and 0.035 to 0.134 in. [0.9 to 3.4 mm] inclusive, in
furnacecharge.Whenthefinalheattreatmentisinacontinuous
nominal wall thickness. Tubing having other dimensions may
furnace, a lot shall include all tubes of the same size and heat,
be furnished, provided such tubing complies with all other
heat treated in the same furnace at the same temperature, time
requirements of this specification.
at heat, and furnace speed.
1.3 Mechanical property requirements do not apply to
tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015
4. Ordering Information
in. [0.4 mm] in thickness.
4.1 Orders for material to this specification should include
1.4 Optional supplementary requirements are provided and,
the following, as required, to describe the desired material
when desired, shall be so stated in the order.
adequately:
4.1.1 Quantity (feet, metres, or number of lengths),
1.5 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text, the 4.1.2 Name of material (seamless tubing),
SI units are shown in brackets. The values stated in each
4.1.3 Manufacture (cold-drawn),
system may not be exact equivalents; therefore, each system
4.1.4 Tube size (outside diameter and nominal wall
shall be used independently of the other. Combining values
thickness),
from the two systems may result in non-conformance with the
4.1.5 Length (specific or random),
standard.
4.1.6 Test report required (see Certified Test Report section
in Specification A450/A450M),
2. Referenced Documents
4.1.7 Specification designation, and
2.1 ASTM Standards: 4.1.8 End use of material.
A450/A450M Specification for General Requirements for
Carbon and Low Alloy Steel Tubes 5. General Requirements
A751 Test Methods, Practices, and Terminology for Chemi-
5.1 Material furnished under this specification shall con-
cal Analysis of Steel Products
form to the applicable requirements of the latest edition of
Specification A450/A450M, unless otherwise provided herein.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
6. Manufacture
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.09 on Carbon Steel Tubular Products. 6.1 Tubes shall be made by the seamless process and shall
Current edition approved Sept. 1, 2015. Published September 2015. Originally
be cold drawn to size.
approved in 1984. Last previous edition approved in 2010 as A822/A822M–04
(2010). DOI: 10.1520/A0822_A0822M-04R15.
7. Heat Treatment
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 Tubes shall be heated after the final cold working
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. operation to a temperature of at least 1200 °F [650 °C].
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A822/A822M − 04 (2015)
TABLE 2 Tensile Requirements
8. Chemical Composition
Tensile strength, min., ksi [MPa] 45 [310]
8.1 Steel shall conform to the chemical composition re-
Yield strength, min., ksi [MPa] 25 [170]
quirements prescribed in Table 1.
Elongation, in 2 in. [or 50 mm], min., % 35
9. Mechanical Properties
TABLE 3 Tubing Outside Diameter Tolerances
9.1 Tensile Properties—Materialshallconformtothetensile
A
properties prescribed in Table 2. Outside Diameter Tolerance,
Nominal Tubing Outside Diameter,
in. [mm] in. [mm]
9.2 Hardness Requirements—Finished tubes shall have a
Up to 1 [25] ±0.004 [0.10]
hardness not exceeding 65 HRB. The hardness test shall not be 1
1to1 ⁄2 [25 to 38] ±0.006 [0.15]
Over 1 ⁄2 to 2 [38 to 50], inclusive ±0.008 [0.20]
required on tubing having a nominal wall thickness of less than
Over 2 to 3 ⁄2 [50 to 90], inclusive ±0.010 [0.25]
0.065 in. [1.7 mm].
A
The actual outside diameter shall be the average
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A822/A822M − 04 (Reapproved 2010) A822/A822M − 04 (Reapproved 2015)
Standard Specification for
Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic
System Service
This standard is issued under the fixed designation A822/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
1.1 This specification covers nominal wall thickness, seamless, cold-drawn carbon steel tubing intended for use in hydraulic
systems and in other similar applications where forming operations require tight radius bending and flaring.
1 1
1.2 Tubing sizes and thicknesses usually furnished to this specification are ⁄8 to 3½3 ⁄2 in. [3.2 to 88.9 mm] in outside diameter
and 0.035 to 0.134 in. [0.9 to 3.4 mm] inclusive, in nominal wall thickness. Tubing having other dimensions may be furnished,
provided such tubing complies with all other requirements of this specification.
1.3 Mechanical property requirements do not apply to tubing smaller than ⁄8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4
mm] in thickness.
1.4 Optional supplementary requirements are provided and, when desired, shall be so stated in the order.
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 may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents
2.1 ASTM Standards:
A450/A450M Specification for General Requirements for Carbon and Low Alloy Steel Tubes
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 lot—for tension and hardness test requirements—the term “lot” applies to all tubes, prior to cutting, of the same nominal
diameter and wall thickness which are produced from the same heat of steel. When final heat treatment is in a batch-type furnace,
a lot shall include only those tubes of the same size and the same heat which are heat treated in the same furnace charge. When
the final heat treatment is in a continuous furnace, a lot shall include all tubes of the same size and heat, heat treated in the same
furnace at the same temperature, time at heat, and furnace speed.
4. Ordering Information
4.1 Orders for material to this specification should include the following, as required, to describe the desired material
adequately:
4.1.1 Quantity (feet, metres, or number of lengths),
4.1.2 Name of material (seamless tubing),
4.1.3 Manufacture (cold-drawn),
4.1.4 Tube size (outside diameter and nominal wall thickness),
4.1.5 Length (specific or random),
4.1.6 Test report required (see Certified Test Report section in Specification A450/A450M),
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.09
on Carbon Steel Tubular Products.
Current edition approved April 1, 2010Sept. 1, 2015. Published August 2010September 2015. Originally approved in 1984. Last previous edition approved in 20042010
as A822/A822M–04. –04 (2010). DOI: 10.1520/A0822_A0822M-04R10.10.1520/A0822_A0822M-04R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A822/A822M − 04 (2015)
4.1.7 Specification designation, and
4.1.8 End use of material.
5. General Requirements
5.1 Material furnished under this specification shall conform to the applicable requirements of the latest edition of Specification
A450/A450M, unless otherwise provided herein.
6. Manufacture
6.1 Tubes shall be made by the seamless process and shall be cold drawn to size.
7. Heat Treatment
7.1 Tubes shall be heated after the final cold working operation to a temperature of at least 1200 °F [650 °C].
8. Chemical Composition
8.1 Steel shall conform to the chemical composition requirements prescribed in Table 1.
9. Mechanical Properties
9.1 Tensile Properties—Material shall conform to the tensile properties prescribed in Table 2.
9.2 Hardness Requirements—Finished tubes shall have a hardness not exceeding 65 HRB. The hardness test shall not be
required on tubing having a nominal wall thickness of less than 0.065 in. [1.7 mm].
9.3 Flattening Test—A section of finished tubing, not less than 3 in. [75 mm] in length shall not crack or exhibit flaws when
flattened between parallel plates to a distance equal to three times the tubing nominal wall thickness. Superficial ruptures resulting
from minor surface imperfections shall not be considered cause for rejection.
10. Permissible Variations
...
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