Cold Rolled Electro Galvanized Coil - ASTM A653 / EN 10142 Steel

Cold rolled electro galvanized coil represents a premium-grade steel product that combines the superior surface finish of cold rolling with the corrosion protection of electrolytic zinc coating. This material finds extensive application in automotive components, appliance manufacturing, and construction hardware where exceptional formability and consistent coating thickness are paramount. Manufactured through a continuous electrolytic deposition process, these coils deliver coating weights ranging from 20 g/m² to 60 g/m² per side, providing targeted protection for indoor and moderate outdoor environments.

What is Cold Rolled Electro Galvanized Coil?

Cold rolled electro galvanized coil is a flat-rolled steel product processed through cold reduction mills and subsequently coated with zinc via electroplating technology. The substrate undergoes thickness reduction at ambient temperature, achieving surface roughness values below 1.5 μm Ra, followed by immersion in an electrolytic bath where zinc ions deposit uniformly across both surfaces. This dual-stage manufacturing yields material with tensile strength between 270-550 MPa depending on grade selection, while maintaining elongation properties of 20-45% per ASTM A653/A653M standards.

Cold Rolled Electro Galvanized Coil Technical Specifications

Our cold rolled electro galvanized coils comply with ASTM A653/A653M-20 Section 6 and EN 10142:2000 standards. Substrate thickness ranges from 0.15 mm to 3.0 mm with tolerance of ±0.02 mm for precision grades. Zinc coating mass achieves 20/20 g/m² to 60/60 g/m² (both sides designation) verified through triple-spot testing per ASTM A90. Chemical composition maintains carbon content below 0.12% maximum, manganese between 0.25-0.60%, and phosphorus limited to 0.025% maximum. Coil width spans 600 mm to 1,500 mm with inside diameter options of 508 mm or 610 mm suitable for automated processing lines.

Why Choose Our Cold Rolled Electro Galvanized Coil

Our manufacturing facility operates continuous electrolytic galvanizing lines equipped with rectifier systems delivering current density of 30-100 A/dm², ensuring coating uniformity within ±5 g/m² across full coil width. Material traceability includes mill test certificates per EN 10204 3.1 documenting mechanical properties, coating weight verification, and surface quality inspection results. We maintain inventory of commercial quality (CQ), drawing quality (DQ), and structural quality (SS) grades with lead times of 15-25 days for standard specifications. Value-driven pricing reflects direct mill sourcing without intermediary markups, while technical support assists with material selection based on forming severity and exposure conditions.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ is 20 metric tons per specification to optimize production efficiency and freight economics. For trial orders or prototype applications, we accommodate reduced quantities of 5-10 tons with adjusted pricing. Mixed container loading is available when combining multiple thickness or width specifications within a single shipment.

Do you provide material test certificates?

Yes, every shipment includes EN 10204 3.1 mill test certificates issued by our quality assurance laboratory. Documentation reports chemical composition via optical emission spectrometry, mechanical properties from tensile testing per ASTM E8, coating weight measurements using coulometric methods, and surface inspection results. Certificates display heat number traceability and comply with automotive OEM requirements.

What is the typical delivery time?

Standard lead time spans 20-28 days from purchase order confirmation for stock thickness ranges of 0.4-2.0 mm. Expedited production scheduling reduces this to 12-15 days for premium service fees. Custom width slitting or specific coating weight requirements may extend timelines by 5-7 additional days depending on production queue status.

Can you cut to custom sizes?

Our processing capabilities include precision slitting to widths as narrow as 20 mm with edge burr below 30 μm, and cut-to-length shearing for panels up to 6,000 mm. Blanking services produce finished parts with dimensional tolerance of ±0.5 mm using CNC turret presses. Minimum quantities for custom processing typically require 2 tons per specification to justify tooling setup.

Get a Competitive Quote for Cold Rolled Electro Galvanized Coil

Request a detailed quotation by providing your required thickness, width, coating designation, quantity, and delivery location. Our sales engineering team responds within 4 business hours with mill-direct pricing, technical data sheets, and logistics coordination. Contact us today to discuss how our cold rolled electro galvanized coil solutions can optimize your manufacturing processes while meeting stringent quality and budget requirements.