ASTM A911/A911M-99

Standard Specification for Uncoated, Stress-Relieved Steel Bars for Prestressed Concrete Ties

STANDARD published on 10.9.1999

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The information about the standard:

Designation standards: ASTM A911/A911M-99
Note: WITHDRAWN
Publication date standards: 10.9.1999
SKU: NS-4775
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM A911/A911M-99 :

Keywords:

Concrete-prestressed, Railroad steel materials-bars, Steel bars-general, bars-steel, uncoated/stress-relieved (for prestressed concrete railroad, ties), spec, ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

Additional information

1. Scope

1.1 This specification covers uncoated stress-relieved steel bars for use in prestressed concrete railroad ties.

1.2 Annex A1 describes low-relaxation bars and relaxation testing for that product. Low-relaxation bars shall be furnished when specifically ordered, and may be furnished in place of regular bars if mutually agreed to by the purchaser and supplier.

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

Fed.Std.No.123	Marking for Shipments (Civil Agencies)
MIL-STD-129	Marking for Shipment and Storage
A370-24a	Standard Test Methods and Definitions for Mechanical Testing of Steel Products (Includes all amendments and changes 10/29/2024).
E328-21	Standard Test Methods for Stress Relaxation for Materials and Structures

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