Industry News2026/8/7
DC04EK Enamel Steel _DC06EK Extra Deep Drawing Enamel Cold Rolled Coil_EN1 0209 Home Appliance Ready Stock Manufacturer
DC04EK and DC06EK are enamel-coated cold-rolled coils specifically designed for EN10209 (European) and Baosteel Q/BQB461 standards. They belong to the EK series of anti-fishscale enamel steel, featuring ultra-low carbon content, high formability, thermal shock resistance, and compatibility with both wet and dry enameling processes. DC04EK is suitable for standard deep-drawn enamel parts, while DC06EK is a premium material for ultra-deep drawing applications, offering crack-free forming and pore-free, blister-free firing. Available in thicknesses from 0.3 to 3.0 mm, these coils support leveling, slitting, and custom cutting. In-stock from the mill, they are widely used in kitchen and bathroom appliances, bathtubs, ovens, and high-end enameled components.

<h2 style="text-align: left;">DC04EK/DC06EKIntroduction to Enamel-Coated Steel</h2><p>DC04EK, DC06EK is the <strong>EN10209 specialized cold-rolled steel standard for enamel coating</strong>. The premium EK series enamel cold-rolled coils under Baosteel's Q/BQB461-2023 enterprise standard are currently the mainstream deep-drawing enamel substrate for kitchen, bathroom, and home appliance sectors. Unlike standard BTC1 enamel steel, the EK series is optimized specifically for enamel processes with ultra-low carbon content and exceptional purity. This eliminates root-cause defects such as fish-scale cracking, pinholes, bubbles, and enamel peeling after high-temperature firing, while maintaining excellent stretch-forming performance.</p><p>The two grades offer distinct gradients tailored to different process needs: <strong>DC04EK is the standard deep-drawing enamel steel<strong>, ideal for conventional deep drawing and moderately complex forming applications with high cost-effectiveness; <strong>DC06EK is the special ultra-deep-drawing enamel steel<strong>, offering superior elongation, toughness, and forming stability. It is specifically designed for multi-stage complex stretching, ultra-thin irregular shapes, and high-difficulty enamel forming, making it the preferred raw material for premium enamel manufacturing. Both grades support wet enamel, electrostatic dry powder enamel, one-coat-one-fire, and two-coat-one-fire processes.</p><p></p><h2 style="text-align: left;">I. DC04EK/DC06EK Grade Definition and Classification</h2><p>EK Series is professional cold-rolled steel dedicated to enamel coating. The suffix "EK" denotes enamel-optimized material, distinguishing it from standard ED series or general-purpose DC series cold-rolled sheets. Key grade parameters and classifications are as follows:</p><ul><li><p><strong>Standards Compliance</strong>: European Standard EN10209:2013 and Baosteel Q/BQB461-2023 specialized enamel steel standards.</p></li><li><p><strong></p></li><li><p><strong>DC04EK Positioning</strong>: Standard deep-drawing enamel grade with elongation ≥36%, suitable for conventional deep drawing, curved surfaces, and box-type enamel parts.</p></li><li><p><strong></p></li><li><p><strong>DC06EK Positioning</strong>: Ultra-deep-drawing premium enamel grade with elongation ≥38%. IF (Interstitial-Free) no-interstitial-atom material, suitable for extreme complex stretching, ultra-thin irregular shapes, and high-difficulty enamel parts.</p></li><li><p><strong>Grade Hierarchy</strong>: DC01EK<DC04EK<DC06EK. Performance improves progressively; substitution in reverse order is not permitted.</p></li><li><p><strong>Process Compatibility</strong>: The entire series resists fish-scale cracking and withstands high-temperature thermal shock, stably supporting both double-sided and single-sided enamel processes.</p></li></ul><p></p></li></ul><h2 style="text-align: left;">II. DC04EK/DC06EK Core Performance Advantages</h2><p>DC04EK, DC06EK enamel steel is produced using ultra-low carbon refining and precision annealing, maximizing both formability and enamel compatibility to address industry pain points:</p><ul><li><p><strong>Superior Resistance to Enamel Defects</strong>: Extremely low impurity content and uniform microstructure ensure no pinholes, bubbles, fish-scale cracking, or enamel peeling after firing. The enamel layer is dense and uniform, significantly improving yield rates for long-term mass production.</p></li><li><p><strong>High-Level Deep-Drawing Capability</strong>: DC04EK meets conventional deep-drawing requirements; DC06EK offers ultra-high elongation and low springback. It supports multi-stage continuous stretching, irregular curved surfaces, and thin-wall forming without cracking, thinning, or wrinkling, ensuring extremely high forming accuracy.</p></li><li><p><strong>High-Temperature Thermal Shock Stability</strong>: Withstands enamel firing at 820-860°C. Repeated firing cycles cause minimal deformation with no strength loss. Excellent thermal expansion/contraction compatibility ensures strong bonding between the enamel layer and substrate, preventing leakage or delamination during long-term use.</p></li><li><p><strong>Dual-Process Compatibility</strong>: Compatible with traditional wet glazing and premium electrostatic dry powder enamel processes. Supports stable production of both single-sided and double-sided enamel on various new and existing production lines.</p></li><li><p><strong>Premium Surface Quality</strong>: Flat, clean surface free of scale and scratches with uniform roughness. High substrate consistency ensures no color variation or process defects in batch production.</p></li></ul><p><strong>Storage & Handling Reminder</strong>: DC04EK and DC06EK are bare cold-rolled enamel substrates without anti-rust coatings. They oxidize easily and require sealed, dry storage with full oil protection throughout. Avoid surface scratches and oil residue during processing to prevent compromised enamel adhesion and firing results.</p><p></p><h2 style="text-align: left;">III. Common Specifications & Parameters</h2><p><strong><strong>Standards</strong>: EN10209 European Standard, Baosteel Q/BQB461-2023 Enterprise Standard.</p><p><strong>Standard Thicknesses</strong>: 0.3mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm</p><p><strong></p><p><strong>Standard Widths</strong>: 1000mm, 1250mm, 1500mm, with custom precision slitting available for narrow strips.</p><p><strong>Supply Forms</strong>: EK series enamel coils, leveled enamel sheets, precision slit strips, and cut-to-size plates.</p><p><strong>Major Manufacturers</strong>: Authentic products from Baosteel and Angang. Enamel-specific material reports, mechanical property tests, and firing compatibility certifications available.</p><p></p><h2 style="text-align: left;">IV. Primary Application Areas</h2><p>DC04EK, DC06EK enamel steel precisely covers mid-to-high-end enamel forming scenarios, serving as a core specialized raw material for kitchen, home appliance, and sanitary ware industries:</p><ul><li><p><strong>Sanitary Ware Industry</strong>: Fully enameled bathtubs, shower base trays, enamel panels, and irregular deep-drawn sanitary components.</p></li><li><p><strong>Kitchen Appliance Industry</strong>: Oven cavities, enamel baking pans, microwave liners, premium water heater tanks, and disinfection cabinet shells.</p></li><li><p><strong>Light Industrial Enamel Equipment</strong>: Small enamel storage tanks, heating enamel components, corrosion-resistant enamel boxes, and light industrial enamel sheet metal parts.</p></li><li><p><strong>Premium Decorative Hardware</strong>: Precision enamel decorative panels, irregular enamel accessories, and high-temperature/corrosion-resistant complex enamel parts.</p></li></ul><p></p></li></ul><h2 style="text-align: left;">V. DC04EK vs. DC06EK Selection Guide (Procurement Tips)</h2><ul><li><p><strong>DC04EK Standard Deep-Drawing Enamel Steel<strong>: Offers excellent cost-performance ratio. Ideal for conventional deep drawing, simple irregular shapes, boxes, and pans. Suitable for mass-producing most standard kitchen and bathroom items. Replaces standard BTC1 with stronger enamel stability.</p></li><li><p></p></li><li><p><strong>DC06EK Ultra-Deep-Drawing Enamel Steel<strong>: Premium top-tier material with optimal elongation, toughness, and crack resistance. Specifically solves challenges in multi-stage stretching, ultra-thin forming, complex curves, and high-yield requirements for premium enamel parts, eliminating forming defects and firing flaws.</p></li></ul><p><strong>Procurement Recommendation</strong>: Select DC04EK for standard deep-drawing enamel parts for best value. For high-difficulty, high-precision, complex irregular shapes, or zero-defect premium enamel parts, prioritize DC06EK. Do not substitute with general-purpose cold-rolled sheets like DC01, SPCC, or ST12.</p><p></p><h2 style="text-align: left;">VI. Supply & Processing Services</h2><p>Long-term supply of authentic factory-original goods. DC04EK and DC06EK enamel cold-rolled coils focus on custom processing for premium enamel applications, meeting precision production line needs:</p><ul><li>Precision coil leveling and micron-level cutting; scratch-free, deformation-free sheets ideal for deep enamel processing.</li><li>High-precision longitudinal slitting with tight tolerances for automated stamping and forming equipment.</li><li>Support for small-batch sampling and large-volume mass production orders; stable supply with comprehensive specifications.</li><li>Factory material certificates and firing process test reports provided; full logistics protection to prevent surface damage.</p></li></ul><p></p></li></ul><h2 style="text-align: left;">VII. Frequently Asked QuestionsFAQ</h2><p><strong>Q1Q: What is the difference between DC04EK/DC06EK and standard BTC1 enamel steel?</strong></p><p>A: BTC1 is a general-purpose household appliance enamel steel. The EK series is a European-standard specialized enamel-optimized material with superior resistance to fish-scale cracking and higher forming grades.</p><p>DC04EK/DC06EK is better suited for complex deep-drawing and multi-stage firing, offering greater process stability than standard BTC1, making it ideal for mid-to-high-end enamel products.</p><p></p><p><strong>Q2Q: Can DC04EK and DC06EK be used interchangeably?</strong></p><p>A: DC06EK can fully replace DC04EK, delivering better forming and enamel results. However, DC04EK cannot replace DC06EK. Using DC04EK for complex stretching parts may lead to cracking and poor forming.</p><p></p><p><strong>Q3Q: Is the EK series compatible with both wet and dry enamel processes?</strong></p><p>A: Yes. DC04EK and DC06EK fully support wet glazing and electrostatic dry powder enamel, including one-coat-one-fire and two-coat-one-fire processes, demonstrating extremely strong process compatibility.</p><p></p><p><strong>Q4Q: Is DC06EK the best cold-rolled substrate for premium enamel?</strong></p><p>A: In the civil industrial enamel sector, DC06EK ultra-deep-drawing enamel steel offers top-tier forming performance and resistance to firing defects. It is the preferred substrate for premium bathtubs, kitchen appliances, and precision enamel parts, ensuring extremely high mass-production stability.</p>