ASTMB498B/498M-2002 Standard

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Table 1. Zinc Coating
Specified Diameter of Coated Wre Class A Class B Class C
1.6-1.9 210 420 630
>1.9-2.3 220 440 660
>2.3-2.7 230 460 690
>2.7-3.1 240 480 720
>3.1-3.5 260 520 780
>3.5-3.9 270 540 810
>3.9-4.5 275 550 825
>4.5-4.8 300 600 900
Table 2. Tensile Requirements
Specified Diameter Stress at 1 % Extension min Mpa Ultimate Tensile Strength min MPA Elongation in 250mm, min, 1%
Class A Class B Class C Class A Class B Class C Class A Class B Class C
1.6-2.3 1310 1240 1170 1450 1380 1310 3 3 3
>2.3-3.05 1280 1210 1140 1410 1340 1280 3.5 3 3
>3.05-3.6 1240 1170 1100 1410 1340 1280 4 3 3
>3.6-4.8 1170 1100 1070 1380 1280 1240 4 4 4
Table 3. Initial Settings for Determining Stress 1% Extension
Specified Diameter, mm Initial Stress, MPA Initial Setting of Extensometer, mm/mm
1.6-2.3 100 0.0005(0.05% extension)
>2.3-3.05 190 0.0010(0.10% extension)
>3.05-4.8 290 0.0015(0.15% extension)
Table 4. Mandrel Size for Adherence Test
Specified Wire Diameter,mm Ratio of Mandrel Diameter to Wire Diameter
1.6-2.3 3
>2.3-3.05 4
>3.05-4.8 5
Table 5. Permissible Variations in Diameter of Zinc-Coated Steel Wire
Specified Diameter, mm Permissible Variation, mm
Plus Minus
1.6-2.3 0.04 0.03
>2.3-3.05 0.05 0.05
>3.05-3.6 0.08 0.05
>3.6-4.8 0.1 0.08
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