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ASTM A1055/A1055M-08a

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Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars
standard by ASTM International, 10/01/2008

Category:

Description

1.1 This specification covers deformed and plain steel reinforcing bars with a dual coating of zinc alloy and an epoxy coating. The zinc-alloy layer is applied by the thermal spray coating method (metallizing) followed by an epoxy coating applied by the electrostatic spray method.

Note 1 – The coating applicator is identified throughout this specification as the manufacturer.

1.2 Requirements of the zinc coating are contained in Table 1.

1.3 Requirements for fusion-bonded powder coatings are contained in Annex A1.

1.4 Guidelines for construction practices at the job-site are presented in Appendix X1.

1.5 This specification is applicable for orders in either inch-pound or SI units.

1.6 The values stated in either inch-pound units or SI units are to be regarded as standard. 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, except as specifically noted in Table 2. Combining values from the two systems may result in nonconformance with this specification.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

TABLE 1 Chemical Composition Requirements for Zinc and Zinc-Alloy Wires

Common Name
(UNS)A
Al,
max
unless noted
Cd,
max
Cu,
max
Fe,
max
Pb,
max
Sn,
max
Sb,
max
Ag,
max
Bi,
max
As,
max
Ni,
max
Mg,
max
Mo,
max
Ti,
max
Zn,
min
Other,
Total max
99.99 ZincB
(Z13005)
0.002C 0.003 0.005 0.003 0.003 0.001 D 99.99
99.99 ZincB
(Z15005)
0.01 0.02 0.02 0.02 0.03 99.9 0.10 total non-Zn
99.995 Zinc
()E
0.001 0.003 0.001 0.002 0.003 0.003 99.995 0.005
99.95 Zinc
()
0.01 0.02 0.001 0.02 0.03 0.001 99.95 0.050
99.95 Zinc
()
0.01 0.005 0.7 0.01 0.005 0.001 0.01 0.01 0.18 99 1.0
98Zn/2Al
(Z30402)
1.5-2.5 0.005 0.005 0.02 0.005 0.003 0.10 0.015 0.02 0.002 0.005 0.02 remainder

A UNS designations were established in accordance with Practice E 527.

B In accordance with ANSI/AWS A5.33.

C The following applies to all specified limits in this table. For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded off to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E 29.

D indicates that the element is not applicable.

E () indicates no Unified Numbering System (UNS) designation for this option.

TABLE 2 Bend Test Requirements

A 615, A 706,
or A 996
A 615M, A 706M,
or A 996M
Bend Angle
(After
Rebound,
degrees)
Time to
Completion
max, s
Bar
No.
Mandrel
Diameter
mmA
Bar
No.
Mandrel
Diameter
in.A
3 3 10 75 180 15
4 4 13 100 180 15
5 5 16 125 180 15
6 6 19 150 180 15
7 7 22 175 180 45
8 8 25 200 180 45
9 9 29 230 180 45
10 10 32 250 180 45
11 11 36 280 180 45
14 17 43 430 90 45
18 23 57 580 90 45

A Mandrel diameters specified for similar size (shown on the same line) inch-pound bars and metric may be interchanged.

Product Details

Published:
10/01/2008
Number of Pages:
9
File Size:
1 file , 140 KB
Redline File Size:
2files, 250 KB