ASTM A554-14
(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.
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 −14
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* MIL-STD-163 Steel Mill Products Preparation for Shipment
3
and Storage
1.1 This specification covers welded austenitic and ferritic
2.3 Federal Standard:
stainless steel mechanical tubing intended for use in
3
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
ornamental, structural, exhaust, and other applications where
appearance, mechanical properties, or corrosion resistance is
3. Terminology
needed. The grades covered are listed in Table 1.
3.1 Definitions—For definitions of terms used in this
1.2 This specification covers as-welded or cold-reduced
specification, refer to Terminology A941.
mechanical tubing in sizes to 16 in. (406.4 mm) outside
dimension, and in wall thicknesses 0.020 in. (0.51 mm) and
4. Ordering Information
over.
4.1 Orders for material under this specification should
1.3 Tubes shall be furnished in one of the following shapes
include the following, as required, to describe the desired
as specified by the purchaser: round, square, rectangular, or
material adequately:
special.
4.1.1 Quantity (feet, mass, or number of pieces),
1.4 Supplementary requirements of an optional nature are
4.1.2 Name of material (welded stainless steel mechanical
provided and when desired shall be so stated in the order.
tubing),
1.5 The values stated in inch-pound units are to be regarded 4.1.3 Form (round, square, rectangular, special, see 1.3),
4.1.4 Dimensions:
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only 4.1.4.1 Round-outside diameter and wall thickness for all
conditions (Section 9). Alternatively, for cold-reduced
and are not considered standard.
condition, outside diameter and inside diameter or inside
diameter and wall dimensions may be specified,
2. Referenced Documents
2 4.1.4.2 Square and rectangular outside dimensions and wall
2.1 ASTM Standards:
thickness (see 10.1),
A370 Test Methods and Definitions for Mechanical Testing
4.1.4.3 Special (to be specified),
of Steel Products
4.1.5 Length (mill lengths, cut lengths, or multiple lengths
A751 Test Methods, Practices, and Terminology for Chemi-
(see 9.3)),
cal Analysis of Steel Products
4.1.6 Grade (Table 1),
A941 TerminologyRelatingtoSteel,StainlessSteel,Related
4.1.7 Condition (see 7.1),
Alloys, and Ferroalloys
4.1.8 Inside diameter bead condition (see 7.2),
2.2 Military Standards:
4.1.9 Surface finish (see Section 12),
3
MIL-STD-129 Marking for Shipment and Storage
4.1.10 Report of chemical analysis, if required (Section 8),
4.1.11 Individual supplementary requirements, if required,
4.1.12 End use,
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, 4.1.13 Specification designation,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4.1.14 Special requirements,
A01.10 on Stainless and Alloy Steel Tubular Products.
4.1.15 Special marking (Section 15), and
Current edition approved July 1, 2014. Published July 2014. Originally approved
4.1.16 Special packing (Section 16).
in 1965. Last previous edition approved in 2013 as A554–13. DOI: 10.1520/A0554-
14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5. Process
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 5.1 The steel may be made by any process.
the ASTM website.
3
5.2 If a specific type of melting is required by the purchaser,
AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Robbins Ave., Philadelphia, PA 19111–5094, Attn: NPODS. it shall be stated on the purchase order.
*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 ----------------------
A554−14
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
...
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 − 13 A554 − 14
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
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
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)
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),
4.1.4 Dimensions:
4.1.4.1 Round-outside diameter and wall thickness for all conditions (Section 9). Alternatively, for cold-reduced condition,
outside diameter and inside diameter or inside diameter and wall dimensions may be specified,
4.1.4.2 Square and rectangular outside dimensions and wall thickness (see 10.1),
4.1.4.3 Special (to be specified),
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 April 1, 2013July 1, 2014. Published May 2013July 2014. Originally approved in 1965. Last previous edition approved in 20112013 as
A554–11.–13. DOI: 10.1520/A0554-13.10.1520/A0554-14.
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.
*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 − 14
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.
...
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