4167.01 DESCRIPTION.
Steel H-piles shall be rolled from steel meeting requirements of ASTM A 572/A 572M Grade 50 (345) and shall have cross section dimensions meeting the requirements of ASTM A 6/A 6M for the section number designated. Only field welding will be allowed, and welding shall be in accordance with Article 2408.13.

When pipe piles are allowed in the contract documents as an option to steel H-piles, the pipe piles shall be of the dimensions shown. They shall be manufactured within the physical and chemical requirements of ASTM A 252, Grade 2 or 3, and the Contractor shall furnish test results from at least one random sample taken from pieces furnished to the project. The chemical analysis shall include carbon, phosphorous, sulphur, and manganese. Only field welds will be permitted, and only at air temperatures above 0°F (-18°C). When welding, the surfaces of the pipe being welded, within 3 inches (75 mm) laterally and in advance of welding, must be preheated to a minimum of 400°F(204°C), and this temperature shall be maintained during welding. The weld joint shall be a prequalified AWS Joint B-U2a. The electrode used for manual shielded metal arc welding shall be E7018. A backup ring shall be used, of the same steel as that of the pipe. All welding shall be done by welders certified by the Department.

Steel sheet piles shall be of the interlocking type with a section modulus not less than that specified. The interlock shall be of a type approved by the Engineer. Piles and welding required thereon shall meet requirements of ASTM A 328/A 328M. Unless otherwise specified, piling shall be furnished with a web thickness not less than 3/8 inch (10 mm).

4167.02 PILE POINTS FOR STEEL H-PILES.
When required in the contract documents, pile points for steel H-piles shall be cast-in-one-piece steel meeting requirements of ASTM A 27/A 27M, Grade 65-35 (450-240) or an approved equal. The points shall be provided with sufficient flange and continuous web vertical back-ups to assure proper alignment and fitting to the piles. The pile points shall provide full bearing for the piles and shall be attached to the piles to insure full transmission of the driving energy to the points. The manufacturer shall submit detail drawings of pile points showing material, weight (mass), and dimensions for approval by the Engineer. Approved pile points are listed in Materials I.M. 467.02.