Wherever outstanding appearance, low maintenance and high strength are the requirements, Independence Tube ASTM A Weathering Structural Steel. ASTM A High strength low alloy steel pipe and tube spec for weathering steel. Specification for HSLA steel with increased atmospheric corrosion resistance. Marc Steel is a known ASTM A Corten Steel Pipes supplier in the industry. With tensile and yield strength, ASTM A Corten Weathering.
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With the additional elements such as those noted above, the added strength of the steel itself allows for a lighter wall thickness of steel to be used than for carbon steel tubing in order to meet structural physical requirements. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Within the text, the SI units are shown in brackets. When this steel is used in welded construction.
Tubing having other dimensions may be furnished provided such tubing complies with all other requirements of this specification. Commonly referred to as weathering steel, ASTM A Type 4 high strength, low alloy HSLA steel utilizes elements such as copper, chromium, nickel and silicon to enhance the protection and resistance to atmospheric corrosion.
Length tolerance for structural tubing shall be in accordance with the specified values. According to ASTM A, the weld seam location for square, rectangle and other special shaped tubing shall not be located within the corner radius unless specified by the customer or manufacturer. Historical Version s – view previous versions of standard.
Chemical qstm Grade Mfg. Tubing having other dimen-sions may be furnished provided such tubing complies with all other requirements of this specification. 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.
Tubeco, Inc. | Specs – ASTM A High Strength Low Alloy Steel Pipe and Tube
This standard is issued under the fixed designation A ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. Twist tolerances for square and rectangular structural tubing shall be indicated. Outside dimension tolerances for square and rectangular tubing shall not exceed the specified plus and minus tolerances. NOTE 2-For methods of estimating the atmospheric corrosion resistance fo low alloy steels see Guide G or actual data.
BIf chromium and silicon contents are each 0. Link to Active This link will always route to the current Active version of the standard.
ASTM A847 Pipes Manufacturer
When properly exposed to the atmosphere, this steel can be used bare unpainted for many applications. Note 1 — Products manufactured to this specification may not be suitable for those applications where low temperature notch toughness properties may be important, such as dynamically loaded elements in welded structures, etc.
As a standard under ASTM A, electric resistance welded tubing is normally provided without removal of a8477 flash. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently a84 the other. Under ASTM A, the corner radius for square and rectangular tubing shall not exceed three times the corner radius. ABecause of the degree to which phosphorus segregates, roduct analysis for this element is not technologically appropriate for rephosphorized steels unless misapplication is clearly indicated.
The atmospheric corrosion resistance of this steel in most envi-ronments is substantially better than carbon steel with or without copper addition Note 2. ATolerances include allowance for convexity or concavity.
When properly exposed to the atmosphere, this steel can be used bare unpainted for many applications. If flash control is required, please specify at time of quotation or order placement. Asrm number in parentheses indicates the year of last reapproval. This specification covers standard requirements a47 cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special shaped structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required.
Round and shaped tubing shall meet the required tensile properties such as tensile strength, yield strength, and elongation. ASTM does not give any warranty express or implied or make a874 representation that the contents of this abstract are accurate, complete or up to date.
Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical composition for carbon, manganese, phosphorus, sulphur, and copper. For lighter wall thicknesses, elongation will be by agreement. AApplies to specified wall thicknesses 0. Combining values from the two systems may result in non-conformance with the standard.
Note 2 — For methods of estimating the atmospheric corrosion resistance of low alloy steels, see Guide G or actual data. The atmospheric corrosion resistance of this steel in most environments is substantially better than carbon steel with or without copper addition Note 2. This abstract is a brief summary of the referenced standard. It is not required however for squares and rectangles or other shapes under A Please contact one of our knowledgeable sales staff members who will assist you with any further questions regarding this specification or with your specific tubing requirements.
For a complete listing of all tubing sizes produced by Valmont, please visit our Steel Tubing Product Catalog.
When this steel is used in welded construction, the welding procedure shall be suitable for the steel and the intended service. NOTE 1-Products manufactured to this specification may not be suitable for those applications where low temperature notch toughness properties may be important, such as dynamically loaded elements in welded stuctures, etc. For rectangular sections, the tolerance calculated for the larger flat dimension shall also apply to a87 smaller flat dimension.