Cold rolled annealed coil processed under protective atmosphere furnace heat treatment. Features superior ductility, stress-relieved flexibility, and smooth black or bright finish for easy pipe forming and secondary processing.
Custom Annealed Steel Coil & Black Annealed Coil for Industrial Fabrication
Authentic Steel produces high-grade annealed coil products engineered for applications demanding outstanding mechanical flexibility and elongation. After cold rolling reduction, steel coils undergo controlled bell-type bright annealing or black annealing processes. This heat treatment recrystallizes the grain structure, eliminating internal stresses and delivering superior softness, ductility, and workability.
Key Attributes of Our Annealed Coil
Superior Softness & Formability: Annealing drastically lowers yield strength while increasing elongation, making the coil easy to bend, roll, spin, and shape without cracking.
Uniform Annealing Quality: State-of-the-art bell furnace heat treatment ensures constant temperature distribution across every coil turn, yielding consistent mechanical properties throughout the entire length.
Versatile Surface Options: Available as black annealed coil (with a thin protective oxide layer) or bright annealed coil (for direct powder coating/plating).
Custom Dimensions: Thickness ranging from 0.1mm to 2.5mm and customizable width from 870mm to 1250mm, with flexible coil weights between 3 MT and 25 MT.
Primary Applications
Our annealed steel coils are widely selected by global manufacturers for:
ERW steel pipe and precision tube manufacturing
Cable trays, electrical conduits, and metal trunking
Hinges, hardware brackets, and stamped building components
Deep-drawn containers, buckets, and metal drums
Reliable Factory Direct Supplier in Tianjin Authentic Steel is fully committed to delivering zero-defect steel products. Operating direct cold rolling and annealing facilities in Tianjin, we eliminate unnecessary intermediary markups and pass direct cost savings to our clients. We provide complete Mill Test Certificates (MTC) and accommodate third-party inspections (SGS, BV, Intertek).
Get in Touch with Bella
Department: Export Sales Department, Authentic Steel
Direct Email: bella@authsteel.com
Mobile / WhatsApp / WeChat: +86 189 2041 0870
