Maximum Deep Drawing Quality · Anti-Fishscale Guaranteed · Ideal for Traditional Enameling Process Complex Stamped Enamelware, Water Heater Tanks, Automotive Components, High-End Sanitary Ware
📋 Product Overview
DC07EK is a premium cold rolled low carbon steel sheet specially designed for vitreous enamelling, conforming to GB/T 13790-2025. With stamping level 07 (maximum deep drawing) and EK classification (traditional enameling process), it offers excellent maximum deep drawability, superior enamel adhesion, and reliable anti-fishscale performance. Titanium-stabilized grade ensures superior formability. Supplied in annealed + skin-passed condition, mechanical properties are guaranteed for 6 months from manufacture date.
📌 Grade code: D (cold forming) + C (cold rolled) + 07 (stamping level 07) + EK (traditional enameling).
🌍 International Grade Cross Reference
According to GB/T 13790-2025 Appendix A Table A.1:
DC07EK
GB/T 13790-2025
C (max %)0.008
Mn (max %)0.50
P (max %)0.020
S (max %)0.050
Als (min %)0.010
Ti (max %)0.15
🔹 Traditional enameling · Level 07 · Ti stabilized
DC07EK
EN 10209:2023 (EU)
C (max %)0.008
Mn (max %)0.50
P (max %)0.020
S (max %)0.050
Als (min %)0.010
Ti (max %)0.15
🇪🇺 European standard compatible
※ Cross reference strictly based on GB/T 13790-2025 Appendix A Table A.1. DC07EK corresponds to EN 10209:2023 DC07EK. Hydrogen permeation test TH ≥ 6.7 min/mm² ensures anti-fishscale performance. No stretcher strain marks should appear during use per GB/T 13790-2025 Table 7.
🧪 Chemical Composition
Ladle analysis per GB/T 13790-2025 Table 5:
Grade
C (max)
Mn (max)
P (max)
S (max)
Als (min)
Ti (max)
DC07EK
0.008%
0.50%
0.020%
0.050%
0.010%
0.15%
📌 Key Features Ultra-low carbon (≤0.008%) and titanium stabilization ensure excellent maximum deep drawability and superior weldability; aluminum content (≥0.010%) promotes enamel adhesion and prevents fishscale. Strict P (≤0.020%) control for outstanding enameling performance. Ti addition fixes C and N for superior aging resistance. No stretcher strain marks guaranteed during use.
⚙️ Mechanical Properties
6-month guarantee period. Tensile test: transverse P6 specimen (GB/T 228.1-2021). No stretcher strain marks should appear during use.
Grade
Lower Yield Strength ReL / MPa
Tensile Strength Rm (MPa)
Elongation A80mm (%)
r90 (min)
≤0.50mm
0.50-0.70mm
>0.70mm
≤0.50mm
0.50-0.70mm
>0.70mm
DC07EK
≤210
≤190
≤170
270-350
≥36
≥38
≥40
≥2.0 (for thickness ≥0.50mm)
* When yield point is not obvious, use Rp0.2. Lower yield strength negotiable to 90 MPa upon agreement. For thickness ≥1.5mm, yield strength upper limit is 225 MPa. Plastic strain ratio r90 ≥2.0 for thickness 0.50-2.00mm, ≥1.8 for thickness 2.00-3.50mm.
🧪 Process Support Free technical consultation for enameling process
📌 EK Classification: Suitable for traditional two-coat enameling process. Titanium-stabilized ultra-low carbon content ensures maximum formability for complex shapes while maintaining excellent enamel wettability and anti-fishscale performance. No stretcher strain marks guaranteed during use per GB/T 13790-2025 Table 7.
❓ Frequently Asked Questions
📦 What is the lead time for DC07EK enameling steel?
Our standard lead time is 35-55 days after order confirmation, depending on quantity and specification requirements. Express delivery options are available upon request.
💰 What is the minimum order quantity (MOQ)?
The typical MOQ is 25 tons per specification. Trial orders of 10-15 tons can be arranged for customer qualification. Contact us for sample requests.
🧪 How does DC07EK prevent fishscaling during enameling?
DC07EK features strictly controlled chemistry (ultra-low carbon ≤0.008%, titanium stabilized, aluminum killed) and hydrogen permeation test value TH ≥ 6.7 min/mm² per GB/T 13790-2025 Annex B, which effectively blocks hydrogen diffusion and prevents fishscale defects. We can provide the hydrogen permeation test report upon request.
🎨 What surface quality levels are available for DC07EK?
We offer FB (finish B), FC (finish C), and FD (superior) surface quality per GB/T 13790-2025 Table 8. FC and FD surfaces are guaranteed to have no visible defects on the better side, ensuring excellent enameling appearance.
📄 How long are the mechanical properties guaranteed?
Per GB/T 13790-2025 clause 7.2, mechanical properties (yield strength, tensile strength, elongation) are guaranteed for 6 months from the date of manufacture, provided proper storage conditions. However, due to aging effects, we recommend using the material as soon as possible for optimal forming performance.
🚢 What packaging options are available for export?
We offer export-grade moisture-proof packaging including VCI anti-rust paper, waterproof underlayer, edge protection, and seaworthy wooden pallets. Standard oiled or dry (non-oiled) options are available based on your requirements.
📞 Quick Inquiry
Submit your requirements. Our team will respond within 24 hours.
