Engineered for Exceptional Dimensional Accuracy and Superior Surface Finish
Product Overview
Our Precision Cold-Rolled Tool Steel Strips are manufactured through advanced cold reduction and annealing processes, delivering tight tolerances, excellent flatness, and a superior surface finish. Ideal for applications requiring intricate forming, severe bending, or further heat treatment, these strips provide a consistent and reliable base material for high-precision components.
Core Advantages
- High Dimensional Precision: Cold rolling ensures extremely tight tolerances on thickness and width, essential for precision manufacturing.
- Excellent Surface Quality: Produces a smooth, uniform, and clean surface—ideal for plating, coating, or direct use in visible components.
- Superior Flatness & Shape: Controlled leveling and processing minimize cross camber, coil set, and edge waves, ensuring optimal performance in automated feed systems.
- Enhanced Mechanical Properties: Cold working increases strength and hardness compared to hot-rolled stock, while subsequent annealing optimizes ductility for forming.
- Consistent Metallurgical Structure: Controlled annealing (bright or spheroidized) ensures uniform grain structure and hardness, critical for predictable performance in further processing.
Technical Specifications
- Material Grades: CK45, CK55, CK60, CK67, CK75, CK95, C75Cr1, 51CrV4, 75Ni8, and other alloy steels.
- Thickness Range: 0.10 mm – 5.0 mm
- Width Range: 2 mm – 550 mm (slitting capabilities up to 1250mm master coil width)
- Standard Hardness (Annealed): Up to 180 HV (can be supplied in soft, 1/4 hard, 1/2 hard, full hard tempers)
- Surface Finish: Bright annealed, polished, matt, or as-rolled finish available.
- Edge Condition: Mill edge, slit edge, rounded (deburred), or sheared.
- Key Delivery States: Cold Rolled Annealed (Soft State), Cold Hard State, or Hard State.
- Standards: Compliant with DIN, AISI, JIS, EN, and GB standards. Flatness and straightness meet international tolerance classes (P0-P4, R1-R9).
Typical Applications
- Precision Stampings & Formed Parts: Springs, clips, brackets, contacts, and connectors.
- Blanking & Fine Blanking: Base material for high-precision punched components.
- Cutting Tool Blanks: Pre-material for knives, blades, and saw blades prior to final hardening.
- Shims, Spacers & Washers: Where consistent thickness and flatness are critical.
- Automotive Components: Clutch plates, seat belt parts, brake system components.
- Consumer & Industrial Goods: Shoe shanks, hardware, electronic enclosures, and precision mechanisms.
Precision Manufacturing Process
Our strips are produced from prime hot-rolled coils sourced from ISO-certified mills. Each coil undergoes a controlled sequence:
- Precision Pickling: Removes scale to ensure a clean surface for rolling.
- Multi-Stand Cold Rolling: Utilizes modern 4-high reversing mills to achieve precise target thicknesses and superior surface finish.
- Controlled Annealing: Performed in protective atmosphere furnaces (bright annealing) to restore ductility without oxidation or decarburization.
- Skin Passing / Leveling: Critical final step to achieve excellent flatness and surface texture.
- Precision Slitting & Edging: Cut to exact width with controlled edge quality (deburred, rounded, or square).
Why Choose Our Cold-Rolled Strips?
- ✅ 20+ Years of Specialization: Deep expertise in cold rolling and processing of tool and spring steels.
- ✅ Full Customization: Tailor thickness, width, hardness, temper, surface, edge, and packaging to your exact print.
- ✅ Rigorous Quality Control: Every batch is verified for chemistry, dimensions, hardness, tensile strength, and flatness in our in-house laboratory.
- ✅ Flexible Supply: No minimum order quantity (MOQ). We support prototyping, small batches, and large-scale production.
- ✅ Fast & Reliable Delivery: Streamlined production and logistics ensure on-time delivery globally.
- ✅ Technical Partnership: We provide material selection support and processing recommendations to optimize your design and cost.
Request Your Custom Quote or Sample
For a precise, reliable, and cost-effective foundation for your components, contact us today.
- Discuss your specifications with our engineers
- Request a material sample for evaluation
- Receive a competitive, no-obligation quotation