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

Q: Q1. What minimum coating prevents white rust?

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

Q: Q2. Can EG steel match HDG’s cut-edge protection?

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

Q: Q3. Does EG work for spot welding?

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

Q: Q4. Are RoHS-compliant options available?

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

Q: Q6. What’s the lead time for custom widths?

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

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

Parameter	Huaxiao-Alloy EG Steel	Industry Standards
Coating Mass	20–180 g/m² (e.g., EZ20, EZ60, EZ180)	ASTM A879 / JIS G3313
Surface Finish	Zero-spangle/satin finish (Ra 0.4–1.2µm)	EN 10346 (DX51D-DX54D)
Base Material	CQ, DQ, DDQ, HSS (250–800 MPa)	ASTM A1008
Thickness Range	Coil: 0.3–3.0mm	Plate: 1.0–10.0mm (±0.03mm)
Passivation	Cr(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

Industry	Key Components	Recommended EG Product
Automotive	Body panels, fuel tanks	DX54D+ZE75: 75g/m² coating, IF steel for deep drawing
Appliances	Washer drums, control panels	EZ60 (CQ): Satin finish, RoHS passivation
Electronics	Chassis, server racks	EZ120-HSS: 350 MPa strength, EMI shielding
HVAC	Ducting, vents	EZ40-SS Grade: Seamless forming, low Zn fumes

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

Factor	Standard HDG	Huaxiao EG Steel
Coating Consistency	Thickness variation ±15%	±5% tolerance (laser-scanned QC)
Salt Spray Resistance	100–150 hrs @ 20µm coating	240–400 hrs @ 20µm (ASTM B117)
E-Coating Performance	Ω fluctuation ±35%	Stable Ω (±3%) for uniform deposition
EMI/RFI Shielding	Limited (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

Q1. What minimum coating prevents white rust?

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

Q2. Can EG steel match HDG’s cut-edge protection?

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

Q3. Does EG work for spot welding?

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

Q4. Are RoHS-compliant options available?

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

Q5. How is EG thickness verified?

A: 3 non-destructive methods:

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

Q6. What’s the lead time for custom widths?

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

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

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

APPLICATIONS & HUAXIAO SOLUTIONS

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

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

FAQs: ELECTRO-GALVANIZED STEEL COIL/SHEET/ PLATE

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

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