The Foundation of Precision in Electronics & Engineering
Overview
CgoodSaws high-precision cold-rolled steel strips are engineered for applications where dimensional accuracy, surface integrity, and material consistency are critical. Utilizing state-of-the-art cold rolling, precision leveling, and controlled heat treatment processes, we deliver steel strips that meet the stringent demands of electronic components, precision mechanisms, optical systems, and other high-value industries.
Core Strengths
🎯 Ultra-Tight Tolerances
- Thickness tolerance: As low as ±0.01mm
- Width tolerance: Precision slitting to ±0.1mm
- Flatness: Up to class P4 (≤0.1% of strip width)
- Straightness: Up to class R3 standard
🔬 Superior Surface Quality
- Standard finishes: Bright annealed, polished, mirror, blue/yellow/white tempered
- Surface roughness: Ra ≤ 0.2μm available (upon request)
- Free from defects: No pits, scratches, roll marks, or oxidation
⚙️ Full Heat Treatment Control
- Annealed state: Soft for deep forming and stamping
- Hardened & tempered: 30–55 HRC range with uniform microstructure
- Decarburization-controlled: Maximum hardness retention through cross-section
📐 Customization Ready
- Width: 3mm to 550mm
- Thickness: 0.10mm to 5.5mm
- Edges: Slit, rounded, square, or deburred
- Coil dimensions: Custom inner/outer diameter and weight
Technical Specifications
Materials & Grades
| Category | Available Grades |
|---|---|
| Medium/High Carbon | CK45, CK50, CK55, CK60, CK67, CK70, CK75, CK80, CK95, CK100 |
| Alloy Steel | C75Cr1, 75Ni8, 51CrV4, 6150, D6A, X32, M42, M51 |
| Stainless Steel | SUS301, SUS304, AISI420J2 (Hard) |
Available Conditions
- Soft/Annealed – Optimal for secondary forming
- Cold-hardened – Enhanced strength without heat treatment
- Hardened & tempered – Spring properties & wear resistance
- Bright annealed – Decarb-free, clean surface
Surface & Edge Options
| Surface Finish | Description | Typical Applications |
|---|---|---|
| Bright Annealed | Reflective, oxide-free surface | Electronic shields, connectors, decorative trims |
| Polished/Mirror | High-gloss finish | Optical components, reflectors, luxury trim |
| Tempered Colors | Blue, yellow, straw hues | Tools, springs, identification coding |
| Coated | Oiled, passivated, coated | Corrosion protection, enhanced lubricity |
Dimensional Capabilities
| Parameter | Range | Precision Level |
|---|---|---|
| Thickness | 0.10 – 5.5 mm | Up to ±0.01 mm |
| Width | 3 – 550 mm | Up to ±0.1 mm |
| Coil Weight | Up to 5,000 kg | Customizable |
| Coil ID/OD | 300–510 mm / ≤1,600 mm | Standard or custom |
Typical Applications
🔌Electronics & Electrical
- Connector pins and terminals
- Shielding cans and RF components
- Micro-switch blades and contacts
- Heat sink substrates
⚙️Precision Engineering
- Watch and instrument springs
- Encoder discs and sensing blades
- Medical device components
- Printer and scanner mechanisms
🔩Fastener & Hardware
- High-strength washers and spacers
- Custom stamping and blanking parts
- Security clip and latch components
🛠️Tooling & Industrial
- Band saw blade backing material
- Cutting rule and slitter blades
- Precision shims and spacers
- Guide strips and wear plates
Quality Assurance
- ✅ Material Certification – Mill test certificates with chemical and mechanical data
- ✅ Dimensional Checks – Laser gauging, micrometer verification
- ✅ Surface Inspection – Visual and optical surface analysis
- ✅ Hardness Testing – Rockwell, Vickers, Brinell methods
- ✅ Flatness/Straightness – Laser profiling and straightedge verification
- ✅ Traceability – Full batch tracking from melt to final coil
Why Choose CgoodSteel for Your Precision Strips?
1. Vertical Integration
We control the entire process—from raw material sourcing to final slitting and finishing—ensuring consistency and accountability at every step.
2. Industry-Specific Expertise
Over 20 years of focus on high-carbon, alloy, and stainless steel strips for demanding technical applications.
3. Flexible & Responsive Service
No minimum order quantities, fast sample turnaround, and customized technical support for your projects.
4. Global Standards Compliance
Our products meet DIN, ISO, JIS, ASTM, and GB standards, with testing documentation to support your quality system.
Ready to Specify Your Precision Strip?
Contact our technical team today for material recommendations, samples, or a customized quote tailored to your drawing or specification.