Designation: A 511 – 04
Standard Specification for
Seamless Stainless Steel Mechanical Tubing
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This standard is issued under the fixed designation A 511; 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*
1.1 This specification covers seamless stainless tubing for
use in mechanical applications where corrosion-resistant or
high-temperature strength is needed. The grades covered are
listed in Table 1 and Table 2.
1.2 This specification covers seamless cold-finished me-
chanical tubing and seamless hot-finished mechanical tubing in
sizes up to 12
3
⁄
4
in. (313.8 mm) in outside diameter (for round
tubing) with wall thicknesses as required.
1.3 Tubes shall be furnished in one of the following shapes,
as specified by the purchaser: round, square, rectangular, or
special.
1.4 Optional supplementary requirements are provided and
when desired, shall be stated in the order.
1.5 The values stated in inch-pound units are to be regarded
as the standard.
2. Referenced Documents
2.1 ASTM Standards:
2
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 1016/A 1016M Specification for General Requirements
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
less Steel Tubes
E 59 Practice for Sampling Steel and Iron for Determination
of Chemical Composition
2.2 Military Standards:
MIL-STD-129 Marking for Shipment and Storage
3
MIL-STD-163 Steel Mill Products Preparation for Ship-
ment and Storage
3
2.3 Federal Standard:
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
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3. Ordering Information
3.1 Orders for material under this specification should
include the following as required to describe the desired
material adequately:
3.1.1 Quantity (feet, mass, or number of pieces),
3.1.2 Name of material (seamless stainless steel mechanical
tubing),
3.1.3 Form (round, square, rectangular, special, see Section
1),
3.1.4 Dimensions (round, outside diameter and wall thick-
ness, see Section 9; square and rectangular, outside dimensions
and wall thickness, see Section 10; other, specify),
3.1.5 Length (specific or random, see 9.3),
3.1.6 Manufacture (cold- or hot-finished, see 4.5),
3.1.7 Grade (Section 6),
3.1.8 Condition (annealed, as cold worked, or with special
heat treatment, controlled microstructural characteristics, or
other condition as required, see Section 5),
3.1.9 Surface finish (special pickling, shot blasting, or
polishing, as required, see Supplementary Requirement S5),
3.1.10 Specification designation,
3.1.11 Report of Chemical Analysis, if required (Sections 7
and 8),
3.1.12 Individual supplementary requirements, if required,
3.1.13 End use,
3.1.14 Packaging,
3.1.15 Special marking (see 15.2),
3.1.16 Special packing (see 16.2), and
3.1.17 Special requirements.
4. Materials and Manufacture
4.1 The steel may be made by any process.
4.2 If a specific type of melting is required by the purchaser,
it shall be as stated on the purchase order.
4.3 The primary melting may incorporate separate degas-
sing or refining and may be followed by secondary melting,
such as electroslag remelting or vacuum-arc remelting. If
secondary melting is employed, the heat shall be defined as all
of the ingots remelted from a single primary heat.
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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
A01.10 on Tubing.
Current edition approved March 1, 2004. Published April 2004. Originally
approved in 1964. Last previous edition approved in 1996 as A 511 – 96.
2
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.
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Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
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*A Summary of Changes section appears at the end of this standard.
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