Galvanized Steel Wire

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Z100 Galvanized Wire

Product Introduction

General Information
ParameterDescriptionStandard / Options
Product NameGalvanized Steel WireZinc-Coated Steel Wire
Manufacturing ProcessMethod of production & coatingElectro-Galvanized (Cold Galvanized), Hot-Dip Galvanized (HDG)
Standard SpecificationsGoverning material & testing standardsASTM A641 / A641M (Zinc-Coated Carbon Steel Wire) , ASTM A856 / A856M (Zinc-5% Aluminum-Mischmetal Alloy-Coated) , EN 10244-2 (Steel wire and wire products — Coatings — Part 2: Zinc or zinc alloy coatings), BS 443 (Galvanized steel wire for general purposes), ISO 7989
Common Steel GradesBase steel qualityCommercial Quality, Drawing Quality, Spring Quality
Zinc Coating TypeType of metallic coatingElectro-Galvanized: Thin, uniform coating
Hot-Dip Galvanized: Thicker coating, heavier protection
ApplicationPrimary end usesBinding wire, fencing, cable armor, wire rope, poultry netting, barbed wire, gabions, springs, overhead ground wire
Coating Specifications
ParameterDescriptionStandard / Options
Coating TypeMethod of zinc applicationElectro-Galvanized (EG): Smooth, thin, uniform; for indoor or light duty
Hot-Dip Galvanized (HDG): Thicker, matte gray; for heavy outdoor corrosion protection
Coating Weight (Zinc Mass)Mass of zinc per unit areaElectro-Galvanized: 10 - 50 g/m²
Hot-Dip Galvanized: 40 - 400 g/m² (depending on wire diameter)
Coating Thickness (Approx)Approximate thicknessElectro-Galvanized: 1 - 7 μm
Hot-Dip Galvanized: 6 - 60 μm
Zinc Purity% Zinc≥ 99.5% (for hot-dip)
Coating Designation (ASTM A641)Coating classClass 1 (Light), Class 2 (Heavy), Class 3 (Extra Heavy)
Coating Designation (EN 10244-2)Coating classClass A (light) to Class F (very heavy)
Adhesion TestWrapping testNo flaking or cracking after wrapping around mandrel
Uniformity (Preece Test)Copper sulfate dip testNumber of dips without exposing bare steel (typically 1-4 minutes)
Surface Finish and Appearance Options
OptionDescriptionTypical Application
Bright / Spangled FinishCharacteristic zinc spangle from hot-dip processGeneral purpose, visible applications
Dull / Matte FinishUniform, non-reflective surfacePainting or further coating preparation
Smooth Finish (EG)Uniform bright gray from electro-galvanizingIndoor applications, weaving, binding
Oil FilmLight oil coating to prevent white rustStorage, transport (wet locations)
Chromate PassivationChemical treatment to prevent white rustExtended storage, humid environments
Dry / Un-oiledNo additional oilClean handling, further processing

Mechanical Properties (at Room Temperature)
Grade / QualityTensile Strength (MPa)Elongation (% , min)Notes
Commercial Quality (Low Carbon)345 - 550 10 - 15Soft, ductile; for binding, weaving
Drawing Quality (Medium Carbon)550 - 700 5 - 8For general fabrication, fencing
High Tensile / Spring Quality1100 - 1800 4 - 6For springs, cable armoring, overhead conductors
ASTM A641 Class 1 (Soft)415 - 585 (min)/General purpose
ASTM A641 Class 3 (Medium)515 - 720 (min)/Higher strength applications
Dimensional Availability and Tolerances
ParameterTypical Range / ValueToleranceNotes
Diameter Range0.15 mm - 10.0 mm/Common: 0.8 mm, 1.2 mm, 1.6 mm, 2.5 mm, 4.0 mm, 5.0 mm
Diameter Tolerance (Fine)For diameters < 0.8 mm± 0.01 mmPrecision applications
Diameter Tolerance (Medium)For diameters 0.8 - 2.5 mm± 0.02 mmGeneral purpose
Diameter Tolerance (Coarse)For diameters > 2.5 mm± 0.03 - 0.05 mmHeavy duty
Out-of-Round (Ovality)/≤ 50% of diameter toleranceDifference between max and min diameter
Tensile Strength Tolerance/± 50 - 100 MPaDepends on grade
Coil Weight5 kg - 1000 kg/Spools, coils, drums available
Coil Inner Diameter (ID)250 mm - 750 mm/Depends on coil weight and handling
Packaging Form//Coils (wound), Spools, Straightened & Cut lengths

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