Cold Rolled Black Annealed Coils

Cold Rolled Black Annealed Coils

1. Product Overview

Product Name: Cold Rolled Black Annealed Coils (Black Annealed Cold Rolled Steel Coils)

Core Definition: Low-carbon steel coils processed by cold rolling and black annealing, with a smooth dark oxide surface, uniform mechanical properties, and excellent formability.

Core Feature: Consistent hardness, stable quality, and outstanding workability, widely used in stamping and forming applications.

Surface Type: Type A black annealed finish (smooth, uniform oxide layer, no additional coating).

2. Technical Specifications

Grades: Q195, Q235B,SPCC

Standards: GB/T 700, JIS G3141

Production Methods: By continuous annealed furnace/By batch annealing furnace

Thickness: 0.55mm – 1.2mm (main export range)

Width: 600mm – 1219mm (custom slitting available)

Hardness: 60 HRB (+5 / -5)

Coil ID: 508mm / 610mm (standard)

Coil Weight: Max 10mt

3. Core Competitive Advantages

Precise Hardness Control: Consistent 60 HRB hardness ensures stable stamping performance, reducing defects in forming processes.

Excellent Formability: Ideal for deep drawing, bending, and stamping, suitable for high-volume production.

Smooth Surface Finish: Type A black annealed surface offers uniform texture, good paintability, and no need for pre-treatment before coating.

Cost-Effective: Lower cost than bright cold-rolled steel, with performance meeting most general forming requirements.

Export-Ready Quality: Strict process control ensures consistent thickness and flatness, supporting smooth customs clearance for global markets.

4. Typical Applications

Home Appliances: Casings and structural parts for refrigerators, washing machines, air conditioners, and small household appliances.

Furniture Manufacturing: Metal frames, brackets, and components for office and home furniture.

Automotive Parts: Stamped structural parts, brackets, and trim components.

Hardware & Light Industry: Hardware accessories, pipe fittings, shelf brackets, and general metal parts.

General Stamping: Low-to-medium strength stamping parts for construction and mechanical applications.

5. Global Export Support

Customization Service: Custom slitting width, cut-to-length sheets, and surface oiling options available.

Quality Assurance: ISO 9001 certified, mechanical property test reports, hardness test certificates, and MTR provided.

Packaging: Seaworthy export packaging (waterproof paper + steel strapping + wooden pallets) to prevent moisture and damage.

Trade & Payment Terms: Support EXW, FOB, CFR, CIF, DDP; Payment via T/T or L/C at sight.

Logistics & Delivery: MOQ 5 MT; 7–30 days delivery (stock available for urgent orders); FCL/LCL shipping options.