ASTM A270-03a

Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing

ABSTRACT
This specification covers grades of seamless, welded, and heavily cold worked austenitic and ferritic/austenitic stainless steel sanitary tubing. Seamless tubes shall be manufactured by a process that does not involve welding at any stage. Welded tubes shall be made using an automated welding process with no addition of filler metal during the welding process. Heavily cold worked tubes shall be made by applying cold working of not less than 35% reduction of thickness of both wall and weld to a welded tube prior to the final anneal. No filler shall be used in making the weld. All material shall be furnished in the heat-treated condition. A chemical analysis of either one length of flat-rolled stock or one tube shall be made for each heat. Each tube shall be subjected to mechanical tests like reverse flattening test, hydrostatic test or nondestructive electric test. The following surface finishes may be specified: mill finish, mechanically polished surface finish, finish No. 80, finish No. 120, finish No. 180, finish No. 240, electropolished finish, and maximum roughness average surface finish. Longitudinally polished finish shall be performed on the inside surface only while a circumferential polished finish shall be done on either the inside surface, outside surface, or both.
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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2004
• ICS: 23.040.10 - Iron and steel pipes
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.10 - Stainless and Alloy Steel Tubular Products

Relations

• Replaces: ASTM A270-03 - Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
• Effective Date: 01-Dec-2004
• Replaced By: ASTM A270-03a(2008)e1 - Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
• Effective Date: 01-Oct-2008

Standards Content (Sample)

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 270 – 03a
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* 2.2 ASME Standard:
B46.1 Surface Texture (Surface Roughness, Waviness, and
1.1 This specification covers grades of seamless, welded,
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Lay)
and heavily cold worked welded austenitic and ferritic/
2.3 ASME Boiler and Pressure Vessel Code:
austenitic stainless steel sanitary tubing intended for use in the
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Section VIII Pressure Vessels
dairy and food industry and having special surface finishes.
2.4 Other Standard:
Pharmaceutical quality may be requested, as a supplementary
SAE J1086 Practice for Numbering Metals and Alloys
requirement.
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(UNS)
1.2 This specification covers tubes in sizes up to and
including 12 in. (304.8 mm) in outside diameter.
3. Terminology
1.3 The values stated in inch-pound units are to be regarded
3.1 Definition:
as the standard.
3.1.1 roughness average, Ra, n—arithmetic average surface
1.4 Optional supplementary requirements are provided, and
roughness normally reported in microinches or microns; a
when one or more of these are desired, each shall be so stated
measurement of surface roughness usually performed by mov-
in the order.
ing a stylus in a straight line along the surface, although other
2. Referenced Documents methods may be used.
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2.1 ASTM Standards:
4. Ordering Information
A 262 Practices for Detecting Susceptibility to Intergranu-
4.1 It is the responsibility of the purchaser to specify all
lar Attack in Austenitic Stainless Steels
requirements that are necessary for material ordered under this
A 480/A 480M Specification for General Requirements for
specification. Such requirements may include, but are not
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
limited to, the following:
Sheet, and Strip
4.1.1 Quantity (feet, metres, or number of lengths),
A 923 TestMethodsforDetectingDetrimentalIntermetallic
4.1.2 Name of material (austenitic steel tube),
Phase in Wrought Duplex Austenitic/Ferritic Stainless
4.1.3 Process seamless (SML), welded (WLD), or heavily
Steels
cold worked (HCW),
A 967 Specification for Chemical Passivation Treatments
4.1.4 Size (outside diameter and average wall thickness),
for Stainless Steel Parts
4.1.5 Length (specific or random),
A 1016/A 1016M Specification for General Requirements
4.1.6 Surface finish (Section 13),
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
4.1.7 Optional requirements (product analysis, see Section
less Steel Tubes
9; hydrostatic or nondestructive electric test, see Section11).
E 527 Practice for Numbering Metals and Alloys (UNS)
4.1.8 Test report required (Certification Section of Specifi-
cation A 1016/A 1016M),
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.1.9 Specification designation,
Stainless Steel and RelatedAlloys, and is the direct responsibility of Subcommittee
4.1.10 Special requirements, and
A01.10 on Stainless and Alloy Steel Tubular Products.
Current edition approved Dec. 1, 2003. Published January 2004. Originally
approved in 1944. Last previous edition approved in 2003 as A 270–03.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from ASME International, Three Park Avenue, New York, NY
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM 10016–5990.
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Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001.
*ASummary 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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A 270 – 03a
4.2 Any supplementary requirements. product analysis tolerance is not applicable to the carbon
content for material with a specified maximum carbon of
0.04 % or less.
5. General Requirements
9.2 If the original test for product analysis fails, retests of
5.1 Material furnished under this specification shall con-
two additional lengths of flat-rolled stock or tubes shall be
form to the applicable requirements of the current edition of
made. Both retests for the elements in question shall meet the
Specification A 1016/A 1016M, unless otherwise provided
requirements of the specificat
...