Baimaoxing
Baimaoxing
St12, a German DIN standard (DIN 1623) equivalent to DC01 (EN 10130), represents the pinnacle of "General Purpose" cold-rolled steel. Unlike standard commercial grades, our St12 cold rolled coils undergo a controlled Annealing & Skin-Pass process that ensures a surface roughness (Ra) optimized for high-adhesion paint coating and electro-galvanizing.
In the context of modern metallurgy, St12 is not just a commodity; it is a structural baseline. Our manufacturing process focuses on dislocation density control during the cold reduction phase, ensuring that the final coil possesses the ductility required for simple bending and the flatness necessary for automated laser cutting.
As the global economy pivots towards Lightweighting and Material Efficiency, St12 serves as the backbone for appliance outer shells, automotive interior components, and precision enclosures. We provide the "Information Gain" by mapping the metallurgical properties of St12 to specific industrial outcomes.
Exploring the evolution of cold rolling technology from traditional batch annealing to AI-driven continuous galvanizing lines.
Implementation of 5-stand tandem cold mills with AGC (Automatic Gauge Control) ensures thickness tolerances within ±0.01mm, critical for high-speed stamping operations.
Transitioning from nitrogen to 100% hydrogen bell annealing reduces cycle times by 30% while achieving a cleaner surface finish, minimizing carbon residue.
By 2026, our technical roadmap includes the integration of EAF (Electric Arc Furnace) feedstock to reduce the carbon footprint of our St12 production by up to 40%.
Located in Liaocheng City, Shandong Province, Shandong Baimaoxing Iron and Steel Co., Ltd. is a premier large-scale steel supplier specializing in R&D, advanced processing, and global logistics. Our core competency lies in the bridge between raw material production and high-precision engineering requirements.
Baimaoxing adopts a Scientific Management Model. Our St12 Cold Rolled Coils and associated products are widely utilized in aerospace, military equipment, petrochemicals, automotive manufacturing, and precision machining. We don't just sell steel; we provide technical services that optimize your production line efficiency.
Automotive Sector: Used for internal brackets, seat frames, and dash panels where surface smoothness and mild forming are required.
Home Appliances: The standard for refrigerator side panels, washing machine drums, and microwave enclosures due to its excellent coating properties.
Office Furniture: High-precision steel desks, filing cabinets, and shelving units benefit from the high strength-to-weight ratio of cold-rolled St12.
Electrical Enclosures: Distribution boxes and server racks utilize St12's flatness and weldability for modular assembly.
How Shandong's Industrial Ecosystem Provides Competitive Advantage.
Located in the heart of China's steel belt, we reduce transportation costs and lead times by sourcing high-purity iron ore and slabs within a 200km radius.
Utilizing the multimodal transport network from Liaocheng to Qingdao Port, we ensure global delivery within 25-40 days, supported by real-time tracking.
Our facility offers "Decoupling Points" in the manufacturing process, allowing us to customize widths, lengths, and surface treatments late in the production cycle.
| Property | Specification (St12 / DC01) |
|---|---|
| Tensile Strength (Rm) | 270 - 410 MPa |
| Yield Strength (Re) | ≤ 280 MPa |
| Elongation (A80mm) | ≥ 28% |
| Surface Finish | Bright, Matte, Dull or Oiled |
Expert Insight: While St12 is excellent for simple forming, for deep-drawing applications (such as oil pans or complex sinks), we recommend moving to St13 or St14 grades. Our engineers help you analyze the "Draw Ratio" to determine the most cost-effective grade for your specific tooling.
We provide cross-standard mapping for ASTM A1008, JIS G3141 (SPCC), and EN 10130 (DC01), ensuring your local engineering designs are fully compatible with our St12 coils.
Every shipment is accompanied by a MTC (Mill Test Certificate) to EN 10204 3.1, detailing chemical composition (C, Mn, P, S) and mechanical test results.
Our commercial team provides localized support for L/C payments, credit insurance via Sinosure, and fixed-price contracts to hedge against global steel price volatility.
St12 is a German DIN standard, while SPCC is a Japanese JIS standard. Both represent the commercial grade of cold-rolled steel. While they are often interchangeable, St12 has slightly more stringent requirements for mechanical consistency in European markets.
St12 is primarily designed for bending and simple forming. For deep drawing applications, St13 (Drawing Grade) or St14 (Special Deep Drawing Grade) should be used to avoid cracking or thinning at the corners.
We apply high-grade anti-rust oil (oiled finish) and use VCI (Volatile Corrosion Inhibitor) paper and metal outer packaging with corner protection to ensure the coils arrive in pristine condition.
For standard St12 coils, our MOQ is typically 25 metric tons (one full container). However, we offer slit-to-width services for smaller batches depending on current stock availability.
