1626 - ALUMINUM ALLOYS 1600-41
1626.1 Description
This specification governs wrought and cast aluminum alloys with associated welding practices and standards for products intended for applications other than sign fabrication.
1626.2 Requirements
a. General. The products are to comply to the design, dimensions, requirement for supplemental corrosion protection, alloy and temper designation, and specific fabrication requirements as specified in the Contract Documents. Tolerances are designated in the Contract Docu ments or as specified by the applicable ASTM or other referenced standard. The alloys and temp ering treatments are to be selected from subsection 1626.2b as a recommendation guideline. A selected alloy and treatme nt may be utilized as the final product listed in the guideline or as the base metal for the fabrication of other products. Other alloys and temper designations may be specified providing that the KDOT grants prior approval. b. Material Specifications.
1.Fasteners. The threaded and non-threaded fastener components governed through subsection 1627.2b(1) are applicable for and subject to this subsection.
2.General product classification. Recommended aluminum alloys and te mpering treatments according to general product classification. The specific alloy and temper designation selected is to be in accordance with the governing ASTM standard and contingent upon the intended application of the final product. TABLE 1626-1: ALUMINUM ALLOYS Product Classification Standard Cast products ASTM B 26 ASTM B 108 ASTM B 618 Alloys (cast): 356.0, A356.0, B443.0, A444. Temper designations: F, T4*, T51, T6, T61, T7, T71 Sheet and plate products. ASTM B 209 Alloys (wrought): 1100, 3003, 5083, 5456, 6061. Temper designations: H12, H14, H16, H116, H321, O, T6. Pipe and tubular products. ASTM B 210 ASTM B 241 Alloys (wrought): 6061, 6063. Temper designations: T6, T832. Bar, rod, wire, profiled (shaped), and tubular products. ASTM B 211 ASTM B 221 ASTM B 316 Alloys (wrought): 1100, 5083, 5456, 6005, 6053, 6061, 6063, 6351. Temper designations: H111, O, T5, T6, T61. Structural profile, and structural pipe and tubular products. ASTM B 308 ASTM B 429 Alloys (wrought): 6061, 6063. Temper designations: T6. *Radiograph all products cast from alloy A444, temper designation T4, through ASTM B 108 to an acceptance level Grade C as a minimum and have a matte non-reflective surface finish texture
3.Welding of aluminum alloy products. 1626 - ALUMINUM ALLOYS 1600-42 Welding is to be conducted accord ing to the recommendations of the ASTM standard that governs the product or basis metal and in accord ance with the specifications and reco mmended procedures and practices of ANSI/AWS A5.10 and D1.2.
1626.3 Test Methods
Conduct all tests required by the applic able ASTM or ANSI/AWS specification of subsection 1626.2b.
1626.4 Prequalification
Not applicable.
1626.5 Basis of Acceptance
Receipt and approval of a Type B certification as specified in DIVISION 2600. Inspection by field personnel of all products and components for compliance with dimensional and supplemental corrosion protection coating requirements when corrosion protection is specified, quality of workmanship and delivery condition.
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Source: Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 786–787 of 978. View official source ↗