ASTM-A416 › Historical Revision Information
Standard Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete
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Scope
1.1 This specification covers two types and two grades of seven-wire, uncoated steel strand for use in pretensioned and post-tensioned prestressed concrete construction. The two types of strand are low-relaxation and stress-relieved (normal-relaxation). Low-relaxation strand shall be regarded as the standard type. Stress-relieved (normal-relaxation) strand will not be furnished unless specifically ordered, or by arrangement between purchaser and supplier. Grade 1725 [250] and Grade 1860 [270] have minimum ultimate strengths of 1725 MPa [250 ksi] and 1860 MPa [270 ksi], respectively, based on the nominal area of the strand.
1.2 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.3 The supplementary requirements in S1 shall be specified for 15.2-mm (0.6-in.) diameter uncoated seven-wire steel strand if needed for applications in prestressed ground anchors.
Keywords
prestressed concrete; seven-wire strand (tendon); steel wire; ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
To find similar documents by ASTM Volume:
01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)
To find similar documents by classification:
77.140.15 (Steels for reinforcement of concrete)
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Document Number
ASTM-A416/A416M-02
Revision Level
2002 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Sept. 10, 2002
Document Type
Specification
Page Count
5 pages
Committee Number
A01.05