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BS 4449:1997
Specification for carbon steel bars for the reinforcement of concrete


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General Product Information

Document Type Standard
Status Superseded
Publisher:    British Standards Institution
Committee ISE/9/1
Superseded Date 30 Sep 2005
Superseded By:
BS 4449:2005+A2:2009
Supersedes:
BS 4449:1988



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$213.86
Published:   15 May 1997  
ISBN: 0 580 27346 6
Pages: 24
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$213.86
Published:   15 May 1997  
Delivery Time:   5-10 days
ISBN: 0 580 27346 6
Pages: 24

Table of Contents

Committees responsible
Foreword
Specification
1   Scope
2   References
3   Definitions
4   Sizes
5   Cross sectional area and mass
6   Length
7   Steelmaking process
8   Chemical composition
9   Bond classification of deformed bars
10  Routine inspection and testing
11  Mechanical properties
12  Fatigue properties of deformed bars
13  Retests
14  Verification of mechanical properties
15  Product identification
Annexes
A   Information to be supplied by the purchaser
B   Determination of the effective cross sectional area of
    deformed bars
C   Recommended formulae for calculating projected rib area
D   Bond classification of deformed bars (bond test)
E   Inspection, testing and certification
F   Method of test for fatigue properties of deformed bars
G   Multiplying factors for tensile tests
Tables
1   Preferred nominal sizes
2   Cross sectional area and mass
3   Tolerance on mass
4   Chemical composition of steel grades: cast analysis
5   Maximum carbon equivalent values: cast analysis
6   Maximum deviations in chemical composition on product 
    analysis
7   Tensile properties
E.1 Percentage total strain
E.2 Rebend test formers
E.3 Acceptability index k as a function of the number of 
    test results n (for a reliable failure rate of 5%
    (pass = 0.95) at a probability of 90% (1 - a = 0.90)
F.1 Test stress ranges for nominal bar sizes
Figures
1   Example of rib pattern of grade 460A with four transverse 
    rib series
2   Example of rib pattern of grade 460B with four transverse
    rib series
D.1 Typical mould for bond performance testing

History

1997 AMD 12032 [15/09/2001]
1997 [15/05/1997]

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