• ASTM A474-03(2017)

ASTM A474-03(2017)

Standard Specification for Aluminum-Coated Steel Wire Strand

ASTM International , 09/01/2017

Publisher: ASTM

File Format: PDF

$33.00$66.00


1.1This specification covers five grades of aluminum-coated, steel wire strand, composed of a number of round, steel wires, with aluminum coatings, for use as guys, messengers, span wires, and for similar purposes.
1.2The five grades covered are as follows:
1.2.1Utilities,
1.2.2Common,
1.2.3Siemens-Martin,
1.2.4High-Strength, and
1.2.5Extra High-Strength.
1.3Minimum breaking strengths of strand for each grade are specified in Table 1.
TABLE 1 Physical Properties of Aluminum-Coated Steel Wire Strand Nominal Diameter of Strand, in. (mm) Number of Wires in Strand Nominal Diameter of Coated Wires in Strand, in. (mm) Approximate Weight of Strand, lb/1000 ft (kg/m) Minimum Breaking Strength of Strand, lbf (kN) Utilities GradeA Common Grade Siemens- Martin Grade High- Strength Grade Extra-High- Strength Grade ³/16 (4.76) 7 0.062 (1.57)  73 (0.108)   . . . . . .  1 150 (5.1)   1 900 (8.5)   2 850 (12.7)  . . . . . . ³/16 (4.76) 7 0.065 (1.65)  80 (0.118)   2 400 (10.7)  (1)B  . . . . . .   . . . . . .   . . . . . .  . . . . . . 1/4 (6.35) 3 0.120 (3.05) 117 (0.173)   3 150 (14.0)  (2)  . . . . . .   . . . . . .   . . . . . .  . . . . . . 1/4 (6.35) 3 0.120 (3.05) 117 (0.173)   4 500 (20.0)  (3)  . . . . . .   . . . . . .   . . . . . .  . . . . . . 1/4 (6.35) 7 0.080 (2.03) 121 (0.179)   . . . . . .  1 900 (8.5)   3 150 (14.0)   4 750 (21.1)  6 650 (29.6) 9/32 (7.14) 7 0.093 (2.36) 164 (0.243)   4 600 (20.5)  (1)  . . . . . .   . . . . . .   . . . . . .  . . . . . . 5/16 (7.94) 3 0.145 (3.68) 171 (0.253)   6 500 (28.9)  (3)  . . . . . .   . . . . . .   . . . . . .  . . . . . . 5/16 (7.94) 7 0.104 (2.64) 205 (0.303)   . . . . . .  3 200 (14.2)   5 350 (23.8)   8 000 (35.6)  11 200 (49.8) 5/16 (7.94) 7 0.109 (2.77) 225 (0.333)   6 000 (26.7)  (1)  . . . . . .   . . . . . .   . . . . . .  . . . . . . ³/8 (9.52) 3 0.165 (4.19) 220 (0.326)   8 500 (37.8)  (3)  . . . . . .   . . . . . .   . . . . . .  . . . . . . ³/8 (9.52) 7 0.120 (3.05) 273 (0.404)  11 500 (51.2)  (4)  4 250 (18.9)   6 950 (30.9)  10 800 (48.0)  15 400 (68.5) 7/16 (11.11) 7 0.145 (3.68) 399 (0.591)  18 000 (80.1)  (4)  5 700 (25.4)   9 350 (41.6)  14 500 (64.5)  20 800 (92.5) 1/2 (12.7) 7 0.165 (4.19) 517 (0.765)  25 000 (111.2) (4)  7 400 (32.9)  12 100 (53.8)  18 800 (83.6)  26 900 (119.7)
(A)The utilities grade is used principally by communication and power and light industries.
(B)The last numbers in parentheses refer to elongation requirements specified in Section 9.
1.4The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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