ASTM A512-96

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn. Contact ASTM International (www.astm.org) for the latest information.
Designation: A 512 – 96 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
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Cold-Drawn Buttweld Carbon Steel Mechanical Tubing
This standard is issued under the fixed designation A 512; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.2 Name of material (buttweld carbon steel mechanical
tubing),
1.1 This specification covers cold-drawn buttweld carbon
3.1.3 Form (round, square, rectangular, special shape),
steel tubes for use as mechanical tubing.
3.1.4 Condition, description and code letters (Section 5),
1.2 This specification covers round, square, rectangular, and
3.1.5 Grade, if required (Section 6),
special shape mechanical tubing.
3.1.6 Dimensions (round, Section 9 or square and rectangu-
1.3 Round tube size ranges covered are outside diameters up
1 lar, Section 10),
to 3 ⁄2 in. (88.9 mm) and wall thickness from 0.035 to 0.500 in.
3.1.7 Length (round length, 9.2; square and rectangular
(0.89 to 12.70 mm).
length, 10.5),
1.4 Optional supplementary requirements are provided and,
3.1.8 Burr removal (Section 11),
when desired, shall be so stated in the order.
3.1.9 Report of chemical analysis and products analysis, if
1.5 The values stated in inch-pound units are to be regarded
required,
as the standard. The values given in parentheses are for
3.1.10 Individual supplementary requirements if required
information only.
(S1 through S5),
2. Referenced Documents
3.1.11 Special requirements,
3.1.12 End use,
2.1 ASTM Standards:
3.1.13 Specification designation,
A 370 Test Methods and Definitions for Mechanical Testing
2
3.1.14 Special marking (Section 15), and
of Steel Products
3.1.15 Special packaging (Section 16).
E 59 Practice for Sampling Steel and Iron for Determination
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of Chemical Composition
4. Materials and Manufacture
2.2 Military Standards:
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4.1 The steel shall be made by any process.
MIL-STD-129 Marking for Shipment and Storage
4.2 If a specific type of melting is required by the purchaser,
MIL-STD-163 Steel Mill Products Preparation for Ship-
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it shall be as stated on the purchase order.
ment and Storage
4.3 The primary melting may incorporate separate degas-
2.3 Federal Standard:
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sing or refining, and may be followed by secondary melting,
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
such as electroslag or vacuum-arc remelting. If secondary
3. Ordering Information
melting is employed, the heat shall be defined as all of the
ingots remelted from a single primary heat.
3.1 Orders for material under this specification should
4.4 Steel may be cast in ingots or may be strand cast. When
include the following, as required, to describe the required
steel of different grades is sequentially strand cast, identifica-
material adequately:
tion of the resultant transition material is required. The
3.1.1 Quantity (feet, weight (Note 1), or number of lengths),
producer shall remove the transition material by an established
NOTE 1—The term “weight” is temporarily used in this specification
procedure that positively separates the grades.
because of established trade usage. The word is used to mean both “force”
4.5 Tubes shall be made by the furnace buttweld process.
and “mass,” and care must be taken to determine which is meant in each
4.6 Tubes shall be cold finished, either externally only
case (SI unit for force 5 newton and for mass 5 kilogram).
(sunk) or externally and internally (mandrel drawn).
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This specification is under the jurisdiction of ASTM Committee A-1 on Steel, 5. Condition
Stainless Steel, and Related Alloys, and is the direct responsibility of Subcommittee
5.1 The purchaser shall specify in the order one of the
A01.09 on Carbon Steel Tubular Products.
following conditions:
Current edition approved Oct. 10, 1996. Published November 1997. Originally
published as A 512 – 64. Last previous edition A 512 – 95.
MD (Mandrel Drawn)—No final thermal treatment
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Annual Book of ASTM Standards, Vol 01.03.
SD (Sink Drawn)—No final thermal treatment
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Annual Book of ASTM Standards, Vol 03.05.
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MDSR—Mandrel Drawn and Stress Relieved
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. SDSR—Sink Drawn and Stress Relieved
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A 512
A
TABLE 2 Chemical Requirements for Other Carbon Grades
MDSA—Mandrel Drawn and Soft
...