Wholesale Cold-Rolled Coil Grade DC01 Manufacturers & Factory

Your Premier Global Metallurgy Partner: Delivering High-Precision, Formable, and Certified Cold-Rolled Steel Solutions Designed for Demanding Industrial Applications

About Hansheng Technology (Hebei) Co., Ltd.

For nearly two decades, we have defined excellence in manufacturing and exporting premier building materials.

Strategically situated in Tangshan City, Hebei Province—the absolute heart of China's steel industry—Hansheng Technology benefits from an exceptional logistics network. Our state-of-the-art facility stands just 150 kilometers from the major Tianjin seaport and 150 kilometers from the capital city of Beijing, ensuring rapid domestic and international shipping.

Since our inception in 2006, we have evolved into a comprehensive, export-oriented steel enterprise. Driven by supply chain excellence, competitive pricing, and strict adherence to international protocols (GB, JIS, ASTM, DIN, EN, and AS/NZS), we operate under the firm philosophy of "honoring contracts and keeping promises."

19+ Years
Industrial Export Experience (Since 2006)
650,000 Tons
Annual Consolidated Structural Steel Output Capacity

Expertise

Almost two decades of deep industry experience providing stable and expert solutions for complex global metallurgy demands.

High Capacity

Armed with 8 high-efficiency production lines to maintain stable yields and fulfill heavy commercial purchase orders without delay.

Strategic Location

Proximity to major shipping hubs in Tianjin and Beijing guarantees minimized transit time, reducing overall logistics expenses.

Quality Alignment

Compliance with global quality certifications including EN, ASTM, DIN, JIS, and GB standards with continuous batch inspections.

Technical Specification & Metallurgy of Cold-Rolled DC01 Steel

Understanding the molecular properties, mechanical performance thresholds, and international grade mappings.

Cold-Rolled Steel Grade DC01 (classified as 1.0330 steel under EN 10130 standards) represents the benchmark for low-carbon cold-rolled products. It is primarily engineered for cold forming, bending, drawing, and general fabrication. The prefix "D" represents flat products for cold forming, "C" denotes the cold-rolled condition, and "01" designates the grade's specific ductility tier. Our factory deploys specialized tension-leveling and skin-passing technologies to eliminate the yield point elongation, ensuring a uniform surface profile and superior flatness across all wholesale deliveries.

Chemical Composition Element Maximum Percentage Allowed (%) Mechanical & Physical Parameter Standard Metric Values
Carbon (C) 0.12 % max Yield Strength ($R_{e}$) 140 - 280 MPa
Manganese (Mn) 0.60 % max Tensile Strength ($R_{m}$) 270 - 410 MPa
Phosphorus (P) 0.045 % max Elongation ($A_{80}$ where thickness ≥ 0.7mm) ≥ 28 %
Sulfur (S) 0.045 % max Available Surface Finishes Bright (b), Semi-bright (g), Matte (m), Rough (r)

International Equivalents

When ordering globally, engineers map DC01 to Japanese standard JIS G3141 SPCC, American standard ASTM A1008 CS Type B, Chinese standard GB/T 5213 SPCC, or old German designation St12.

Microstructure Control

Through modern continuous cold-reduction processes, we regulate the grain distribution of ferrite and cementite, guaranteeing that structural stampings do not suffer from surface tearing or localized buckling.

Surface Options

Offered in standard oil-coated, dry, chemically passivated, or phosphate-treated finishes to match your localized stamping line speed and corrosion prevention setup.

Localized Engineering Applications of DC01 Coils

How our materials perform across diverse climates, compliance standards, and specialized machinery environments.

1. Western Europe (Automotive Parts & Assemblies)

European auto parts manufacturing hubs require strict compliance with EN 10130. Wholesale DC01 coils are processed in Germany and Italy for stamping unexposed vehicle components, seat frames, and structural reinforcements where predictable ductility and high dimensional consistency are mandatory to match automated robotic assemblies.

2. Middle East (HVAC & Cable Tray Infrastructure)

In harsh desert and coastal environments (such as Dubai or Saudi Arabia), DC01 is widely used for manufacturing cable trays and HVAC duct systems. After high-precision cold-forming, these structures are post-hot-dip galvanized to withstand localized salt-mist corrosion and intense thermal expansion cycles.

3. North America (Appliance & Enclosure Assemblies)

Compliant with ASTM A1008 equivalents, these coils are distributed to US and Mexican appliance manufacturers. They form the outer panels of refrigerators, washing machines, and heavy-duty computer server racks due to their flat matte finish, which is ideal for uniform powder coating and paint adhesion.

Manufacturing Technology Roadmap

A step-by-step scientific breakdown of how we transform raw steel slabs into ultra-precise DC01 Cold-Rolled Coils.

Step 1: Acid Pickling & Descaling

Hot-rolled steel coils undergo continuous hydrochloric acid pickling to eliminate scale, preparing a clean oxide-free metallic substrate for subsequent cold reduction.

Step 2: Cold Reduction (Tandem Mill Rollings)

The descaled strip is fed through a multi-stand continuous cold rolling mill. High-pressure hydraulic roll gap controls compress the thickness down to tolerances within ±0.02 mm.

Step 3: Recrystallization Annealing

Cold-rolled strips are hardened and require annealing. We apply bell-type (H2-atmosphere) or continuous horizontal annealing furnaces to restore the steel's ductile properties.

Step 4: Skin-Pass Rolling & Levelling

A final light deformation pass (usually 0.5% to 1.5% reduction) eliminates the yield elongation plateau, sets the required matte/bright surface roughness, and ensures flatness.

AI-Guided Production Precision Control

Thickness Tolerance Distribution (≤ ±0.02mm) 99.8% Success
Surface Defect Detection Rate (CCD Scan Cameras) 100% Scan
Elongation Uniformity Control 99.2% Standard

*Statistical visual based on Hansheng Hebei plant's real-time optical tracking during cold rolling operations.

China's Supply Chain Resilience & Tangshan Advantage

Why sourcing from the epicenter of global steel manufacturing protects your industrial supply lines.

Tangshan City, Hebei Province represents the largest steel-producing cluster globally, accounting for a massive share of the world's total output. By basing our primary production and logistics coordination in this strategic hub, Hansheng Technology ensures uninterrupted raw material procurement, stable electricity rates, and highly optimized processing networks. This dense localization of auxiliary services protects our clients from global material scarcities and sudden pricing shocks.

150km
Distance to Tianjin Seaport
8 Lines
High-Efficiency Production
300k+ Tons
Annual Export Operations
< 15 Days
Average Loading Lead Time

Furthermore, our close connection with nearby sea logistics centers means that container loading, bulk ship chartering, and custom declarations are completed efficiently. Whether shipping flat sheets or heavy cold-rolled coils, our proximity to Tianjin Port eliminates multi-stage transit delays and guarantees that ocean freight parameters are tightly controlled from factory floor to seaport warehouse.

Compliance, Standard Testing, & Structural Protection

Ensuring every shipment arrives free of corrosion, damage, or metallurgical variations.

Certified Traceability

Every single coil shipment is dispatched alongside comprehensive Mill Test Certificates (MTC) matching EN 10204 3.1 criteria, tracing heat numbers, chemical formulations, and mechanical elongation tests.

Anti-Rust Protection

To counter ocean moisture, we use multi-layer packaging: heavy-duty rust-preventative oiling, wrapped in VCI (Volatile Corrosion Inhibitor) waterproof paper, encased in structural steel shielding, and secured with vertical strapping bands.

Independent Inspections

We offer full integration with third-party testing services such as SGS, Bureau Veritas, or TÜV. Inspectors can monitor thickness consistency, surface roughness, and coil winding safety on-site.

Customers Orders Gallery

Visualizing our globally dispatched steel shipments and tailored logistical projects.

Global Cooperation Cases

Showcasing critical civil construction and industrial installations completed utilizing our supply chain solutions.

Beijing Yanxihu Convention and Exhibition Center
2013
Beijing Yanxihu Convention and Exhibition Center Construction Supply
Clinker production line project
2014
Clinker Production Line Project - South Africa Mamba Cement Co., Ltd.
Modern Villa to Canada
2020
High-Precision Modern Structural Steel Prefab Villa to Canada

Cooperative Mills & Strategic Steel Partners

Collaborating with global metallurgical giants to source, process, and certify first-rate steel elements.

Partner Mill 1
Partner Mill 2
Partner Mill 3
Partner Mill 4
Partner Mill 5
Partner Mill 6
Partner Mill 7
Partner Mill 8
Partner Mill 9
Partner Mill 10
Partner Mill 11
Partner Mill 12

Industrial Q&A for Cold-Rolled DC01 Procurement

Resolving common technical dilemmas, standard queries, and structural parameters faced by engineering divisions.

What is the primary difference between cold-rolled steel grades DC01, DC03, and DC04?
The difference lies in their formability, ductility, and elongation properties. DC01 is intended for simple bending and light stretching (minimum elongation $A_{80}$ is 28%). DC03 is engineered for deep drawing (elongation ≥ 34%), and DC04 is designed for extra-deep drawing applications (elongation ≥ 38%) requiring high plastic strain ratios.
How long is the anti-rust shelf life of oiled cold-rolled steel coils?
Standard light oiling protects against atmospheric corrosion for up to 3 to 6 months under dry, ventilated, and covered warehouse storage conditions. For ocean shipping or highly humid regions, we recommend heavy oiling combined with customized VCI plastic wrapping to prevent water ingress and condensation rust.
What thickness and width specifications can your Tangshan factory handle?
Our cold rolling lines process cold-rolled DC01 coils in thicknesses ranging from 0.2 mm up to 3.0 mm. The typical coil widths range from 900 mm to 1500 mm. Slitting services are also available for narrow strip requirements, maintaining tolerances down to ±0.05 mm.
Is DC01 steel weldable?
Yes, due to its low carbon (C ≤ 0.12%) and low alloy content, DC01 possesses excellent weldability. It is compatible with all standard welding methods, including MIG, TIG, resistance spot welding, and laser welding, without requiring preheating or post-weld heat treatment.