ASTM A554 - 16 Standard Specification for Welded Stainless Steel Mechanical Tubing

ASTM A554 - 16

Standard Specification for Welded Stainless Steel Mechanical Tubing

Active Standard ASTM A554 | Developed by Subcommittee: A01.10

Book of Standards Volume: 01.01

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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.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers welded austenitic, ferritic, and austenitic-ferritic duplex 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.

(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(E) S40900 (Type 409) has been replaced by S40910, S40920, and S40930.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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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)

Military Standards

MIL-STD-129 Marking for Shipment and Storage Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 191115094, Attn: NPODS.

MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage

Federal Standard

Fed. Std. No. 123 Marking for Shipments (Civil Agencies)

SAE Standard

SAE J 1086 Numbering Metals and Alloys

ICS Code

ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings)

UNSPSC Code

UNSPSC Code 31351209(Stainless steel welded or brazed tube assemblies)

Referencing This Standard

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DOI: 10.1520/A0554-16

Citation Format

ASTM A554-16, Standard Specification for Welded Stainless Steel Mechanical Tubing, ASTM International, West Conshohocken, PA, 2016, www.astm.org