STRUCTURAL STEEL SECTION 1039
Tensile Strength, minimum 60,000 PSI Yield Strength, minimum 50,000 PSI Elongation, minimum 20% in 2 in. Reduction of area, minimum 50%
C.Dimensions . Provide stud shear connectors meeting the dimensions of Table 1039.5 -2.
Table 1039.5 -2. Stud Shear Connectors Standard Dimensions and Tolerances (in inches) Shank Diameter (c) Length* (L) Head Diameter (H) Thickness (T) 0.75 (+0.000 to -0.015) 6 (+0.062 to - 0.125) 1.25 (+0.015) 0.375 minimum 0.875 (+0.000 to -0.015) 6 (+0.062 to -0.125) 1.75 (+0.015) 0.375 minimum *Length includes thickness of head.
D.Test Methods. Determine tensile properties according to the applicable sections of AASHTO T244.
Perform tensile tests on finished studs welded to test plates using the test fixture in Figure 7.2 of AASHTO / AWS D1.5. Repeat the test if fracture occurs outside the middle half of the gauge length.
E.Finish. Provide finished studs of uniform quality and condition, free from injurious laps, fins,
seams, cracks, twists, bends, or other defects. Produce a finish by cold drawing, cold rolling, or machining.
F.Certification. Provide the manufacturer’s certification that the delivered studs meet material
requirements. Provide certified copies of in -plant quality control test reports with delivered product.
G.Quality Assurance . The engineer may select studs of each type and size to verify compliance with
the specified requirements. Replace components at the contractor’s expense.
1039.6Steel Forgings and Steel Shafting
A.Steel Forgings. For steel forgings, meet AASHTO M102, Classes C, D, F, or G.
B.Cold -Finished Carbon Steel Shafting . For cold -finished carbon steel shafting, meet AASHTO M169,
Grades UNS designations G 10160 to G 10300, inclusive.
1039.7Castings.
A.Steel Castings.
1.Capable of meeting or exceeding an HS -25 load rating when tested in accordance with AASHTO
M306.
2.Conforming to the manufacture requirements of AASHTO M306.
3.Steel Castings. For steel castings, meet AASHTO M103, Grade 70 –36.
4.Chromium Alloy Steel Castings. For chromium alloy steel castings, meet AASHTO M163, Grade
CA 15M. STRUCTURAL STEEL SECTION 1039 688 B. Iron Castings.
1.Capable of meeting or exceeding an HS -25 load rating when tested in accordance with AASHTO
M306.
2.Conforming to the manufacture requirements of AASHTO M306.
3.Gray Iron Castings. For gray iron castings, meet AASHTO M105, class 35B.
4.Ductile Iron Castings. For ductile iron castings, meet ASTM A536, Grade 60 -40-18. Inlet and
manhole castings (covers, frames, and grates) meet ASTM A536 Grade 80 -55-06. Provide specified test coupons per ASTM A1067, and test specimens from integral casti ng parts, such as risers, for castings with a weight exceeding 1,000 pounds.
5.Malleable Iron Castings. For malleable iron castings, meet ASTM A47, Grade 32510.
6.Clean scale and sand from all castings before delivery.
1039.8Pipe and Tubing.
A.Steel Pipe.
1.Pipe and Couplings. For pipe and couplings, meet ASTM A53.
2.Flanges and Pipe Fittings. For flanges and pipe fittings, meet ASTM A338.
3.Weld Fittings. For weld fittings, meet ASTM A234.
B.Low-Alloy Steel Pipe.
1.Pipe and Couplings. Manufacture pipe and couplings from low -alloy steel AASHTO M270, Grade
50 or 50W, Type 2 or AASHTO M270 Grade 50W, and conforming to ASTM A53.
2.Flanges and Pipe Fittings. For flanges and pipe fittings, meet ASTM A338.
3.Welding Fittings. For weld fittings, meet ASTM A234.
C.Cast Iron Pipe. For cast iron pipe, meet ASTM A74 or ASTM A377.
D.Steel Tubing. For steel tubing, meet ASTM A500 or ASTM A501.
E.Sign Structure Pipe. For sign structure pipe, meet 1 of the following:
1.ASTM A53, Grade B, Type E or S:
a.Provide Charpy V -notch testing (zone 2) for pipe with wall thicknesses greater than or equal to
1/2-inch.
2.API Specification 5L PSL2 Grade B X42 , X42M, X52, or X52M :
a.No jointers permitted.
b.Process of manufacture: seamless, electric resistance welded, or longitudinal seam,
submerged arc welded.
c.Provide Charpy V -notch testing (zone 2) for pipe with wall thicknesses greater than or equal to
1/2-inch.
3.ASTM A500, Grade B:
a.Provide Charpy V -notch testing (zone 2) for pipe with wall thicknesses greater than or equal to
1/2-inch. STRUCTURAL STEEL SECTION 1039 689 4. ASTM A106, Grade B:
a.Provide Charpy V -notch testing (zone 2) for pipe with wall thicknesses greater than or equal to
1/2-inch.
1039.9Metal Sheeting.
A.Metal Bridge Deck Forms. Use permanent forms, fabricated from steel conforming to ASTM A924
and ASTM A653 (structural steel (SS) excluding Grade 50 Class 3), with a coating designation of G165, and a minimum thickness of 20 gage. Coat fasteners, if used , by galvanizing according to ASTM A153 or ASTM B633, thickness class Fe/Zn 12.
B.Sheet Copper. For sheet copper, meet ASTM B152, and conform to the requirements of the
Embrittlement test, Section 12 of ASTM B152 and ASTM B577. Make lapped joints by soldering or by riveting.
C.Sheet Zinc. For sheet zinc, meet ASTM B69, Type II. Make lapped joints by soldering.
D.Steel Sheet. For steel sheet, meet ASTM A653 designation G -90.
1039.10Galvanizing
A.General.
1.If indicated or specified, galvanize materials in accordance with the applicable material
specifications. If the applicable material specifications do not include galvanizing, galvanize according to: AASHTO M111, AASHTO M232, ASTM B633, ASTM A392 Class 2 coating, or ASTM B695, as applicable.
2.Test for the specified weight of galvanizing according to AASHTO T65.
3.Comply with ASTM A143 and ASTM A385.
B.Repair of Damaged Galvanizing. Repair damaged galvanizing in accordance with ASTM A780.
C.Use the same process to galvanize the washers, nuts, and bolts of any assembly.
D.Overtap nuts the minimum amount required for the fastener assembly. Lubricate galvanized nuts
with a lubricant containing a visible dye.
Source: Delaware Standard Specifications for Road and Bridge Construction, 2025 Edition. Pages 697–699 of 779.