PART 2
PRODUCTS
2.1
MATERIALS
2.1.1
Prestressing Steel
2.1.1.1
High-Strength Steel Bars
ASTM A 722/A 722M, Type [I] [or] [II], meeting all supplementary
requirements.
2.1.1.2
Epoxy-Coated Steel Bars
ASTM A 722/A 722M, Type [I] [or] [II], conforming to the coating
requirements of ASTM A 775/A 775M, 0.3 mm 8 mils minimum thickness.
Coating at the anchorage end may be omitted over the length provided for
threading the nut against the bearing plate.
2.1.1.3
Steel Bar
[ASTM A 615/A 615M] [ASTM A 108, Grade []].
2.1.1.4
Strand
ASTM A 416/A 416M, Grade [1725] [1860] [250] [270], low relaxation strand.
Strand shall not be welded.
2.1.1.5
Compact Strand
ASTM A 779/A 779M, Type [1790] [1860] [260] [270], low relaxation strand.
Strand shall not be welded.
2.1.1.6
Epoxy Coated Strand
ASTM A 882/A 882M, Grade [1725] [1860] [250] [270], including Supplementary
Requirements S1.
2.1.2
Structural Steel
ASTM A 36/A 36M [ASTM A 572/A 572M, Grade 345 50] [ASTM A 588/A 588M] [ASTM
A 709/A 709M Grade [248] [345] [36] [50]].
2.1.3
Steel Pipe
ASTM A 53/A 53M, Type E or S, Grade B.
2.1.4
Steel Tube
[ASTM A 500] or [API Spec 5CT, Grade N-80, Oil Field Seconds / Mill
Secondary Tubing].
2.1.5
Ductile Iron Castings
ASTM A 536.
SECTION 02490
Page 21
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