BTC1 Enamel Steel Cold Rolled Coil – Baosteel Specialized Enamel Steel, In-Stock Deep-Drawing Grade for Water Heater Liners from Manufacturer

<h2 style="text-align: left;">BTC1Introduction to Enamel-Grade Cold-Rolled Steel Coils</h2><p>BTC1Enamel-grade steel is a specialized ultra-low carbon IF (Interstitial-Free) cold-rolled steel developed under Baosteel's Q/BQB enterprise standard. It is the most widely used and stable material in the home appliance enamel industry today. Unlike general-purpose cold-rolled sheets such as DC, SPCC, or ST series, BTC1 was specifically engineered for the enamel firing process. With extremely low impurity levels and uniform microstructure, it eliminates common defects like pinholes, blisters, fish-scale cracking, and enamel delamination that occur when using ordinary steel sheets. BTC1 serves as the dedicated substrate for both wet enameling and electrostatic dry powder enameling production lines.</p><p>This material combines excellent deep-drawing performance with superior compatibility for enamel processes. It meets the complex stretching requirements for inner tanks and chambers while withstanding high-temperature firing between 820-860°C. It offers high forming yield rates and strong enamel adhesion, making it the core raw material for kitchen and bathroom appliances and pressure-bearing enamel components.</p><h2 style="text-align: left;">I. BTC1 Enamel Steel Brand Positioning and Material Characteristics</h2><p>BTC1As an industrial-grade enamel cold-rolled steel, BTC1 differs from general-purpose cold-rolled sheets by being exclusively tailored for deep enamel processing. Its core positioning includes:</p><ul><li><p><strong>Standard Compliance</strong>: Baosteel Q/BQB special enamel steel enterprise standard</p></li><li><p><strong>Material Type</strong>: Ultra-low carbon IF interstitial-free enamel steel</p></li><li><p><strong>Core Positioning</strong>: Dual adaptation for deep drawing and high-temperature firing; ideal for pressure-bearing home appliance enamel parts</p></li><li><p><strong>Differentiation</strong>: Cannot be replaced by DC01/DC03/SPCC or other general cold-rolled sheets. This specialized material ensures compatibility with enamel processes, eliminating firing defects</p></li></ul><h2 style="text-align: left;">II. Core Performance Advantages of BTC1 Enamel Steel</h2><p>BTC1经过 refining decarburization and precise annealing, BTC1 addresses key pain points in enamel production, offering comprehensive performance far exceeding that of ordinary cold-rolled sheets:</p><ul><li><p><strong>Superior Resistance to Enamel Defects</strong>: Ultra-pure, low-carbon composition with minimal inclusions ensures no pinholes, blisters, or fish-scale cracking after firing. The enamel layer covers uniformly and densely, completely solving issues of enamel peeling and flaking found in ordinary steel sheets, significantly boosting product pass rates.</p></li><li><p><strong>Excellent Deep-Drawing Performance</strong>: Plastic strain ratio (r-value) exceeds 1.8, with high elongation and excellent sheet flowability. Complex shapes like hemispherical domes and curved chambers can be formed without cracking or uneven thinning, perfectly suited for challenging parts like water heater inner tanks.</p></li><li><p><strong>High-Temperature and Thermal Shock Resistance</strong>: Withstands enamel firing temperatures of 820-860°C. Maintains structural stability after single or multiple firings, minimizing deformation. Excellent thermal expansion/contraction matching ensures strong bonding between the enamel layer and substrate, preventing delamination and leakage during long-term use.</p></li><li><p><strong>Premium Surface Quality</strong>: Flat, smooth surface free of mill scale, scratches, or defects. Uniform surface roughness perfectly matches both mainstream wet glazing and electrostatic dry powder enameling processes.</p></li><li><p><strong>Corrosion Resistance and Easy Cleaning</strong>: Strong enamel adhesion results in a smooth, sterile post-forming surface that resists dirt accumulation and harmful substance leaching. Meets food-grade standards for home appliances and sanitary ware, ensuring exceptional durability.</p></li></ul><p><strong>Storage and Handling Reminder</strong>: BTC1 is supplied as bare cold-rolled enamel substrate without anti-rust coating, making it highly prone to oxidation. Store in sealed, dry conditions with full oil protection throughout the supply chain. During processing, avoid surface scratches and oil residue to prevent compromising subsequent enamel adhesion.</p><h2 style="text-align: left;">III. Common Specifications and Parameters</h2><p><strong><strong>Standard</strong>: Baosteel Q/BQB Enamel-Specialized Steel Standard</p><p><strong>Available Thicknesses</strong>: 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; precision slitting for narrow strips available upon request</p><p><strong>Supply Forms</strong>: BTC1 enamel steel coils, flattened enamel sheets, slit steel strips, and cut-to-length plates</p><p><strong>Manufacturer</strong>: Authentic Baosteel original products; enamel-specific material reports and process compatibility test data available</p><h2 style="text-align: left;">IV. Primary Application Areas</h2><p>BTC1BTC1 enamel steel is exclusively designed for high-end components requiring deep drawing combined with high-temperature enameling. Key application scenarios include:</p><ul><li><p><strong>Home Appliance & Sanitary Ware</strong>: Storage-type electric water heater inner tanks, oven cavities, microwave liners, enamel baking trays, bathroom enamel sinks, and deep-drawn bathtub components</p></li><li><p><strong>Light Industrial Pressure Equipment</strong>: Small pressure-bearing enamel tanks, heating enamel components, kitchen cabinet bodies, and accessories for household pressure vessels</p></li><li><p><strong>Industrial Enamel Equipment</strong>: Corrugated plates for small enamel reactors, heat exchanger substrates, and lightweight corrosion-resistant enamel equipment shells</p></li><li><p><strong>Decorative Hardware</strong>: Premium enamel decorative panels, kitchen/bathroom metal enamel fittings, and temperature/corrosion-resistant enamel sheet metal parts</p></li></ul><h2 style="text-align: left;">V. Procurement Selection Guide: Avoid Common Pitfalls</h2><ul><li><p><strong><strong>Do Not Substitute with General Cold-Rolled Sheets</strong>: General cold-rolled grades like DC01, DC03, SPCC, ST12 lack enamel-specific treatment. Firing these sheets often leads to fish-scale cracking, pinholes, delamination, and deformation. They are suitable only for standard painting applications, not for enamel processes.</p></li><li><p><strong>Prefer Original BTC1 Material</strong>: Non-branded enamel steels often contain excessive impurities and exhibit unstable performance, leading to batch-level firing defects. Baosteel BTC1 offers mature process compatibility and high mass-production stability.</p></li><li><p><strong>Match Forming Processes</strong>: For complex deep-drawn tanks and multi-stage forming parts, BTC1 enamel-specialized steel is mandatory to ensure dual compliance with forming and firing quality standards.</p></li></ul><h2 style="text-align: left;">VI. Supply and Processing Services</h2><p>We provide long-term现货 supply of authentic Baosteel BTC1 enamel-grade cold-rolled coils, specializing in enamel-industry steel solutions with one-stop custom processing services:</p><ul><li>Precision coil leveling and cut-to-length cutting; scratch-free, deformation-free sheets ready for enamel production lines</p></li><li>High-precision longitudinal slitting with tight tolerances for narrow strips, compatible with automated stamping equipment</p></li><li>Support for both small-batch sampling and large-volume production orders with stable, ample inventory</p></li><li>Original material certificates and process test reports provided; full protective logistics delivery</p></li></ul><h2 style="text-align: left;">VII. Frequently Asked QuestionsFAQ</h2><p><strong>Q1<strong>Q: Can BTC1 enamel steel be replaced with general cold-rolled sheets?</strong></p><p>A: No. Ordinary cold-rolled sheets have non-compliant carbon and impurity levels, leading to fish-scale cracking, pinholes, delamination, and deformation after high-temperature firing. Only BTC1 specialized enamel steel should be used to guarantee final product quality.</p><p><strong>Q2<strong>Q: Which enamel processes is BTC1 enamel steel suitable for?</strong></p><p>A: Fully compatible with industry-standard wet glazing and electrostatic dry powder enameling processes. Capable of single-pass firing or meeting multi-step high-temperature firing requirements, offering exceptional process adaptability.</p><p><strong>Q3<strong>Q: How is the deep-drawing performance of BTC1 enamel steel?</strong></p><p>A: Excellent deep-drawing capability with an r-value exceeding 1.8. Ensures uniform stretching without thinning or cracking, specifically designed for complex deep-drawn parts like water heater tanks and curved chambers.</p><p><strong>Q4<strong>Q: Does BTC1 enamel steel require anti-rust treatment?</strong></p><p>A: Yes. As a bare cold-rolled substrate without galvanization, BTC1 must be oiled and sealed during storage and processing to prevent oxidation and rust. Oil contamination on the surface can compromise enamel adhesion.</p>