ASTM A554-15
(Specification)Standard Specification for Welded Stainless Steel Mechanical Tubing
Standard Specification for Welded Stainless Steel Mechanical Tubing
ABSTRACT
This guide covers standard specification for welded stainless steel tubing for mechanical applications where appearance, mechanical properties, or corrosion resistance is needed. The tubes shall be made from flat-rolled steel by an automatic welding process without the addition of filler metal. Tubes shall be furnished in one of the following shapes - round, square, rectangular, or special. Heat analysis shall be performed wherein several grades of steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, titanium, columbium, and tantalum.
SCOPE
1.1 This specification covers welded austenitic and ferritic stainless steel mechanical tubing intended for use in ornamental, structural, exhaust, and other applications where appearance, mechanical properties, or corrosion resistance is needed. The grades covered are listed in Table 1. (A) Maximum, unless a range or minimum is indicated. Where ellipses (...) appear in this table, there is no minimum and analysis for the element need not be determined or reported.(B) For small diameter or thin walls, or both, where many drawing passes are required, a carbon content of 0.040 % max is necessary in grades MT-304L and MT-316L. Small outside diameter tubes are defined as those less than 0.500 in. (12.7 mm) in outside diameter and light wall tubes as those less than 0.049 in. (1.24 mm) in average wall thickness.(C) The columbium content shall be not less than ten times the carbon content and not more than 1.00 %.(D) The titanium content shall be not less than five times the carbon content and not more than 0.60 %.(E) S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409, shall be satisfied by any one of S40910, S40920, or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930 may, by agreement between purchaser and manufacturer, be certified as S40900.(F) S41003 chemical composition relates to Type 412, which is not currently an AISI or SAE number.(G) S44100 chemical composition relates to Type 441, which is not currently an AISI or SAE number.(H) % Cr + 3.3 × %Mo + 16 × %N = 41 min.(I) % Cr + 3.3 × %Mo + 16 × %N = 40 min.(J) Designation established in accordance with Practice E527 and SAE J 1086.(K) Common name, not a trademark, widely used, not associated with any one producer.
1.2 This specification covers as-welded or cold-reduced mechanical tubing in sizes to 16 in. (406.4 mm) outside dimension, and in wall thicknesses 0.020 in. (0.51 mm) and over.
1.3 Tubes shall be furnished in one of the following shapes as specified by the purchaser: round, square, rectangular, or special.
1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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Designation:A554 −15
StandardSpecification for
1
Welded Stainless Steel Mechanical Tubing
This standard is issued under the fixed designation A554; 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* 2.2 Military Standards:
3
MIL-STD-129 Marking for Shipment and Storage
1.1 This specification covers welded austenitic and ferritic
MIL-STD-163 Steel Mill Products Preparation for Shipment
stainless steel mechanical tubing intended for use in
3
and Storage
ornamental, structural, exhaust, and other applications where
2.3 Federal Standard:
appearance, mechanical properties, or corrosion resistance is
3
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
needed. The grades covered are listed in Table 1.
2.4 SAE Standard:
1.2 This specification covers as-welded or cold-reduced
4
SAE J 1086 Numbering Metals and Alloys
mechanical tubing in sizes to 16 in. (406.4 mm) outside
dimension, and in wall thicknesses 0.020 in. (0.51 mm) and
3. Terminology
over.
3.1 Definitions—For definitions of terms used in this
1.3 Tubes shall be furnished in one of the following shapes
specification, refer to Terminology A941.
as specified by the purchaser: round, square, rectangular, or
special. 4. Ordering Information
1.4 Supplementary requirements of an optional nature are 4.1 Orders for material under this specification should
provided and when desired shall be so stated in the order. include the following, as required, to describe the desired
material adequately:
1.5 The values stated in inch-pound units are to be regarded
4.1.1 Quantity (feet, mass, or number of pieces),
as standard. The values given in parentheses are mathematical
4.1.2 Name of material (welded stainless steel mechanical
conversions to SI units that are provided for information only
tubing),
and are not considered standard.
4.1.3 Form (round, square, rectangular, special, see 1.3),
4.1.4 Dimensions:
2. Referenced Documents
4.1.4.1 Round-outside diameter and wall thickness for all
2
2.1 ASTM Standards:
conditions (Section 9). Alternatively, for cold-reduced
A370 Test Methods and Definitions for Mechanical Testing
condition, outside diameter and inside diameter or inside
of Steel Products
diameter and wall dimensions may be specified,
A751 Test Methods, Practices, and Terminology for Chemi-
4.1.4.2 Square and rectangular outside dimensions and wall
cal Analysis of Steel Products
thickness (see 10.1),
A790/A790M Specification for Seamless and Welded
4.1.4.3 Special (to be specified),
Ferritic/Austenitic Stainless Steel Pipe
4.1.5 Length (mill lengths, cut lengths, or multiple lengths
A941 TerminologyRelatingtoSteel,StainlessSteel,Related
(see 9.3)),
Alloys, and Ferroalloys
4.1.6 Grade (Table 1),
E527 Practice for Numbering Metals and Alloys in the
4.1.7 Condition (see 7.1),
Unified Numbering System (UNS)
4.1.8 Inside diameter bead condition (see 7.2),
4.1.9 Surface finish (see Section 12),
4.1.10 Report of chemical analysis, if required (Section 8),
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
4.1.11 Individual supplementary requirements, if required,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4.1.12 End use,
A01.10 on Stainless and Alloy Steel Tubular Products.
4.1.13 Specification designation,
Current edition approved Jan. 1, 2015. Published January 2015. Originally
approved in 1965. Last previous edition approved in 2014 as A554–14. DOI:
10.1520/A0554-15.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Robbins Ave., Philadelphia, PA 19111–5094, Attn: NPODS.
4
Standards volume information, refer to the standard’s Document Summary page on Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
the ASTM website. PA 15096-0001, http://www.sae.org.
*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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---------------------- Page: 1 ----------------------
A554−15
2
A
TABLE 1 Chemical Requirements
Composition, %
J
UNS # Grade
Carbon Manga- Phos- Sulfur Silicon Nickel Chromium Molybdenum Titanium Columbium Nitrogen Copper Other
nese, phorus
Austenitic
MT-301 0.15 2.00 0.045 0.030 1.00 6.0–8.0 16.0–18.0 . . .
MT-302 0.15 2.00 0.045 0.030 1.00 8.0–10.0 17.0–19.0 . . .
MT-304 0.08 2.00 0.045 0.030 1.00 8.0–11.0 18.0–20.0 . . .
B
MT-304L 0.035 2.00 0.045 0.030 1.00 8.
...
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: A554 − 14 A554 − 15
Standard Specification for
1
Welded Stainless Steel Mechanical Tubing
This standard is issued under the fixed designation A554; 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 welded austenitic and ferritic stainless steel mechanical tubing intended for use in ornamental,
structural, exhaust, and other applications where appearance, mechanical properties, or corrosion resistance is needed. The grades
covered are listed in Table 1.
1.2 This specification covers as-welded or cold-reduced mechanical tubing in sizes to 16 in. (406.4 mm) outside dimension, and
in wall thicknesses 0.020 in. (0.51 mm) and over.
1.3 Tubes shall be furnished in one of the following shapes as specified by the purchaser: round, square, rectangular, or special.
1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A790/A790M Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
2.2 Military Standards:
3
MIL-STD-129 Marking for Shipment and Storage
3
MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage
2.3 Federal Standard:
3
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
2.4 SAE Standard:
4
SAE J 1086 Numbering Metals and Alloys
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology A941.
4. Ordering Information
4.1 Orders for material under this specification should include the following, as required, to describe the desired material
adequately:
4.1.1 Quantity (feet, mass, or number of pieces),
4.1.2 Name of material (welded stainless steel mechanical tubing),
4.1.3 Form (round, square, rectangular, special, see 1.3),
1
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 Stainless and Alloy Steel Tubular Products.
Current edition approved July 1, 2014Jan. 1, 2015. Published July 2014January 2015. Originally approved in 1965. Last previous edition approved in 20132014 as
A554–13.–14. DOI: 10.1520/A0554-14.10.1520/A0554-15.
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.
3
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111–5094, Attn: NPODS.
4
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
*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
1
---------------------- Page: 1 ----------------------
A554 − 15
2
TABLE 1 Chemical Requirements
Composition, %
Carbon, Manga- Phos- Sulfur, Silicon, Nickel Chromium Molybdenum Titanium Columbium Nitrogen
UNS # Grade
max nese, phorus, max max + Tantalum
max max
Austenitic
MT-301 0.15 2.00 0.045 0.030 1.00 6.0–8.0 16.0–18.0 . . .
MT-302 0.15 2.00 0.045 0.030 1.00 8.0–10.0 17.0–19.0 . . .
MT-304 0.08 2.00 0.045 0.030 1.00 8.0–11.0 18.0–20.0 . . .
A
MT-304L 0.035 2.00 0.045 0.030 1.00 8.0–13.0 18.0–20.0 . . .
MT-305 0.12 2.00 0.045 0.030 1.00 10.0–13.0 17.0–19.0 . . .
MT-309S 0.08 2.00 0.045 0.030 1.00 12.0–15.0 22.0–24.0 . . . . .
B
MT-309S-Cb 0.08 2.00 0.045 0.030 1.00 12.0–15.0 22.0–24.0 . .
MT-310S 0.08 2.00 0.045 0.030 1.00 19.0–22.0 24.0–26.0 . . .
MT-316 0.08 2.00 0.045 0.030 1.00 10.0–14.0 16.0–18.0 2.
...
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