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1.1 This specification covers uncoated stress-relieved steel bars for use in prestressed concrete railroad ties.
1.3 This specification is applicable for orders in either inch-pounds units (as specification A911) or in SI units (as Specification A911M).
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standards. Within the text, the SI 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
E328 Test Methods for Stress Relaxation for Materials and Structures
Federal StandardFed. Std. No. 123 Marking for Shipments (Civil Agencies)
Military StandardsMIL-STD-129 Marking for Shipment and Storage
ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
ASTM A911 / A911M-99, Standard Specification for Uncoated, Stress-Relieved Steel Bars for Prestressed Concrete Ties, ASTM International, West Conshohocken, PA, 1999, www.astm.orgBack to Top