Electro-Galvanized Steel (EG) Coil, Sheet & Plate | Zero-Spangle Supplier | ASTM A879, EN 10346

Huaxiao-Alloy’s Electro-Galvanized Steel (EG) delivers ultra-uniform zinc coatings (5–20µm) via electrolytic deposition – achieving 50% tighter thickness tolerances versus hot-dip galvanizing. Ideal for components demanding flawless aesthetics, conductivity, or paint adhesion.

TECHNICAL SPECIFICATIONS OF ELECTRO-GALVANIZED STEEL COIL/SHEET/ PLATE

ParameterHuaxiao-Alloy EG SteelIndustry Standards
Coating Mass20–180 g/m² (e.g., EZ20, EZ60, EZ180)ASTM A879 / JIS G3313
Surface FinishZero-spangle/satin finish (Ra 0.4–1.2µm)EN 10346 (DX51D-DX54D)
Base MaterialCQ, DQ, DDQ, HSS (250–800 MPa)ASTM A1008
Thickness RangeCoil: 0.3–3.0mmPlate: 1.0–10.0mm (±0.03mm)
PassivationCr(VI)-free trivalent chromate (RoHS/REACH)ISO 17073

Critical Advantages:

  • Coating Uniformity: 95% Zn distribution ±1.5g/m² → critical for e-coating
  • Superior Paint Adhesion: ≤1% peel-off vs. 5–15% for HDG (ASTM D3359)
  • Weldability: Low iron-zinc alloy layer → reduced electrode wear
  • Conductivity: Stable surface resistance (0.5–5.0 Ω/sq)

APPLICATIONS & HUAXIAO SOLUTIONS

IndustryKey ComponentsRecommended EG Product
AutomotiveBody panels, fuel tanksDX54D+ZE75: 75g/m² coating, IF steel for deep drawing
AppliancesWasher drums, control panelsEZ60 (CQ): Satin finish, RoHS passivation
ElectronicsChassis, server racksEZ120-HSS: 350 MPa strength, EMI shielding
HVACDucting, ventsEZ40-SS Grade: Seamless forming, low Zn fumes

HUAXIAO-ALLOY VS. TRADITIONAL ELECTRO-GALVANIZED STEEL COIL/SHEET/ PLATE

FactorStandard HDGHuaxiao EG Steel
Coating ConsistencyThickness variation ±15%±5% tolerance (laser-scanned QC)
Salt Spray Resistance100–150 hrs @ 20µm coating240–400 hrs @ 20µm (ASTM B117)
E-Coating PerformanceΩ fluctuation ±35%Stable Ω (±3%) for uniform deposition
EMI/RFI ShieldingLimited (rough surface)Optimized (Ra 0.4µm surface)

WHY HUAXIAO-ALLOY FOR ELECTRO-GALVANIZED STEEL COIL/SHEET/ PLATE?

  • Mill Partnerships: JFE Steel, Nippon Steel, Tata BlueScope
  • Advanced Lines: Continuous electrolytic coating (CEC) + IR temper rolling
  • Testing Rigor: Salt spray, T-bend, adhesion tests per ASTM/ISO
  • Global Compliance: IATF 16949 automotive, IECQ QC080000 electronics
  • Sustainability: ≤0.5 g/m² hexavalent chrome alternatives

Case: German auto OEM achieved 30% scrap reduction switching to Huaxiao’s EG for door panels.

Engineer Perfection:
Request EG vs. HDG Cost-Benefit Analysis
Download Surface Finish Standards (IEC/ASTM)
Get EG Samples (Include Coating Weight/Finish Spec)

[ACCESS COMPARISON TOOL] • [REQUEST SAMPLES] • [CONSULT AUTO SPECIALIST]

FAQs: ELECTRO-GALVANIZED STEEL COIL/SHEET/ PLATE

A: ≥20 g/m² with chromate passivation (≥240 hrs ASTM B117). Huaxiao offers EZ30 for indoor applications.

A: No – EG is barrier protection only. Specify organic-coated EG (OEG) or edge sealing for critical edges.

A: Superior to HDG: Low Fe-Zn layer → 50% longer electrode life. Use Br-Cu electrodes for ≥25,000 welds.

A: Yes – Huaxiao’s Cr(VI)-free passivation meets RoHS Annex XVII/REACH SVHC. Options: Trivalent chrome, silane, graphene nano-coatings.

A: 3 non-destructive methods:

  1. X-ray fluorescence (XRF)
  2. Coulometric dissolution (ISO 2177)
  3. Magnetic induction (ASTM B499)
    Per-coil certification provided.

A: 12 working days for coils ≤2,000mm width (slit-to-order), ±0.5mm tolerance.

Hot-Dip Galvanized Steel Coil, Sheet & Plate | ASTM A123/A767 Supplier

Need a quote?

Electro-Galvanized Steel Coil

7*24 Customer Service

Phone:

+86 13012867759

+86 21-57425826

Address

557RM, 3#LOU 1388#, JIANG YUE ROAD, Minhang District, Shanghai,  201114, SHANGHAI,  China

GET AN ENQUIRY NOW!!!