ASTM A270-03
(Specification)Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
SCOPE
1.1 This specification covers grades of seamless and welded austenitic stainless steel sanitary tubing intended for use in the dairy and food industry and having special surface finishes. Pharmaceutical quality may be requested, as a supplementary requirement.
1.2 This specification covers tubes in sizes up to and including 12 in. (304.8 mm) in outside diameter.
1.3 The values stated in inch-pound units are to be regarded as the standard.
1.4 Optional supplementary requirements are provided, and when one or more of these are desired, each shall be so stated in the order.
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Standards Content (Sample)
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Contact ASTM International (www.astm.org) for the latest information.
Designation: A 270 – 03
Standard Specification for
Seamless and Welded Austenitic and Ferritic/Austenitic
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Stainless Steel Sanitary Tubing
This standard is issued under the fixed designation A 270; 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* 2.3 Other Standard:
SAE J1086 Practice for Numbering Metals and Alloys
1.1 This specification covers grades of seamless and welded
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(UNS)
austenitic and ferritic/austenitic stainless steel sanitary tubing
intended for use in the dairy and food industry and having
3. Terminology
special surface finishes. Pharmaceutical quality may be re-
3.1 Definition:
quested, as a supplementary requirement.
3.1.1 roughness average, Ra, n—arithmetic average surface
1.2 This specification covers tubes in sizes up to and
roughness normally reported in microinches or microns; a
including 12 in. (304.8 mm) in outside diameter.
measurement of surface roughness usually performed by mov-
1.3 The values stated in inch-pound units are to be regarded
ing a stylus in a straight line along the surface, although other
as the standard.
methods may be used.
1.4 Optional supplementary requirements are provided, and
when one or more of these are desired, each shall be so stated
4. Ordering Information
in the order.
4.1 Orders for material under this specification should
2. Referenced Documents include the following, as required, to describe the desired
material adequately:
2.1 ASTM Standards:
4.1.1 Quantity (feet, metres, or number of lengths),
A 262 Practices for Detecting Susceptibility to Intergranu-
2 4.1.2 Name of material (seamless or welded tubes),
lar Attack in Austenitic Stainless Steels
4.1.3 Size (outside diameter and average wall thickness),
A 480/A 480M Specification for General Requirements for
4.1.4 Length (specific or random),
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
2 4.1.5 Surface finish (Section 13),
Sheet, and Strip
4.1.6 Optional requirements (product analysis, see Section
A 923 Test Methods for Detecting Detrimental Intermetallic
9; hydrostatic or nondestructive electric test, see Section11).
Phase in Wrought Duplex Austenitic/Ferritic Stainless
2 4.1.7 Test report required (Certification Section of Specifi-
Steels
cation A 1016/A 1016M),
A 967 Specification for Chemical Passivation Treatments
2 4.1.8 Specification designation,
for Stainless Steel Parts
4.1.9 Special requirements, and
A 1016/A 1016M Specification for General Requirements
4.2 Any supplementary requirements.
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
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less Steel Tubes
5. General Requirements
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E 527 Practice for Numbering Metals and Alloys (UNS)
5.1 Material furnished under this specification shall con-
2.2 ASME Standard:
form to the applicable requirements of the current edition of
B46.1 Surface Texture (Surface Roughness, Waviness, and
4 Specification A 1016/A 1016M, unless otherwise provided
Lay)
herein.
6. Manufacture
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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 6.1 The tubes shall be made by the seamless or welded
A01.10 on Stainless and Alloy Steel Tubular Products.
process.
Current edition approved Apr. 10, 2003. Published May 2003. Originally
approved in 1944. Last previous edition approved in 2001 as A 270–01.
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Annual Book of ASTM Standards, Vol 01.03.
3
Annual Book of ASTM Standards, Vol 01.01.
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Available from ASME International, Three Park Avenue, New York, NY Available from Society of Automotive Engineers (SAE), 400 Commonwealth
10016–5990. Dr., Warrendale, PA 15096-0001.
*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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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A270–03
6.2 At the manufacturer’s option, tubing may be furnished 2. For tubes with a specified wall thickness less than 0.049 in.
either hot finished or cold finished. (1.24 mm), the diameter tolerances shall be a matter for
agreement by the manufacturer and the purchaser.
7. Heat Treatment
12.1.2 When tubing >4 in. (101.6 mm) outside diameter is
7.1 All material shall be furnished in the heat-treated
ordered, additional ovality may be required for thin wall
condition. The heat treatment
...
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