Product Overview
Our High Carbon Cold Rolled Steel Strip is a premium, precision-rolled flat steel material engineered to meet the most demanding manufacturing standards. Produced through advanced multi-stand cold rolling reduction mills, it delivers exceptional thickness consistency, outstanding flatness, superior surface finishes, and highly uniform mechanical properties.
With an optimized carbon chemistry (typically $0.60\%$ to $1.05\%$), these steel strips develop unparalleled hardness, tensile strength, wear resistance, and spring-back elasticity after receiving appropriate heat treatment.
We deliver dependable, high-yield cold-rolled steel coils for manufacturers, distributors, and OEMs worldwide who require stable materials for critical components.
Key Features & Advantages
Superior Tensile Strength & Fatigue Resistance
The precision-controlled carbon content enables high wear resistance and superior yield strength. This allows finished components to withstand continuous fatigue and extreme mechanical loads without deformation.
High Elastic Limit: Ideal for spring and flexing applications.
Micro-Structural Uniformity: Minimal risk of structural micro-cracks under repeated loading.
Extended Part Lifespan: Crucial for heavy-duty, high-stress environments.
Impeccable Surface Quality & Finishes
Our cold-reduction processes yield an ultra-smooth, clean surface finish, significantly reducing friction during high-speed stamping.
Aesthetic & Process Options: Available in bright, polished, matte, deoxidized grey, or tempered blue.
Low Tooling Wear: Smooth finishes prolong the working life of your stamping dies and tools.
Consistency: Zero surface scale or pitting across the entire length of the coil.
Tight Dimensional Tolerances
Equipped with state-of-the-art Automatic Gauge Control (AGC) systems, we maintain dimensional tolerances far stricter than standard industrial ranges.
Precision Gauge Control: Thickness tolerances tight down to pm 0.01mm (depending on nominal thickness).
Custom Slitting: High-precision rotary slitter lines ensure minimal burr and tight width tolerances.
Exceptional Wear and Abrasion Resistance
Designed to hold up against continuous friction, our high carbon strip maintains its integrity in highly abrasive applications.
Edge Retention: Allows cutting blades to maintain razor sharpness over longer duty cycles.
Reduced Friction Fatigue: Essential for moving sliding components and scrapers.
Technical Specifications
|
Technical Parameter |
Specification & Manufacturing Standard |
|
Product Name |
High Carbon Cold Rolled Steel Strip |
|
Available Steel Grades |
EN 10132: C60S, C67S, C75S, C100S ASTM A684: 1075, 1095 JIS G4802: SK5, S50C - S70C GB/T 3522: 65Mn |
|
Thickness Range |
0.05 mm – 3.0 mm |
|
Width Range |
10 mm – 600 mm (Custom high-precision slitting available) |
|
Supply Form |
Tight Coils, Slit Strip Coils, or Cut-to-Length Flat Sheets |
|
Surface Finish States |
Bright (Polished), Smooth, Matte, Blue-Tempered, or Grey-Deoxidized |
|
Edge Profiles |
Slit Edge (No.3), Mill Edge (No.2), Round/Deburred Edge (No.1/No.5) |
|
Mechanical States |
Spheroidized Annealed (Soft/Formable), Cold Rolled Hard (Full Hard), Quenched & Tempered (Pre-Hardened) |
|
Manufacturing Standards |
EN 10132, ASTM A684, JIS G4802, GB/T 3522 |
|
Quality Certification |
Mill Test Certificate (MTC) issued in accordance with EN 10204 3.1 |
|
Export Packaging |
Standard Seaworthy Packaging (VCI anti-rust paper, moisture-proof barrier film, steel strapping, reinforced wooden pallets) |
Main Applications
Spring Manufacturing
High resilience, structural memory, and elasticity make these strips ideal for cyclical load-bearing spring components:
Diaphragm springs and clutch disc springs
Flat springs, leaf springs, and Belleville washers
Clockwork, power, and constant-force springs
Retaining rings, circlips, and snap fasteners
Industrial Blades & Cutting Tools
Provides the required hardness matrix to withstand continuous impact and friction:
Band saw blades, circular saw bodies, and gang saws
Doctor blades, creping blades, and industrial scrapers
Precision cutting knives for textile, paper, and leather processing
Agricultural tines, disc blades, and lawnmower blades
Automotive & Machinery Components
Guarantees dimensional precision for critical automotive and machinery sub-assemblies:
Seatbelt spring mechanisms and brackets
Transmission clutch plates and friction discs
High-strength industrial washers, shims, and spacers
Quality Control & Process Verification
To meet the high standards of global industrial buyers, quality verification is embedded at every step of our manufacturing line:
Incoming Material Verification: Every hot-rolled master coil undergoes strict chemical spectrographic analysis to verify exact carbon/alloy ratios, along with physical size inspections.
In-Process Monitoring: During cold rolling, AGC (Automatic Gauge Control) systems track thickness variations in real time. Visual scanners continuously inspect for surface anomalies such as micro-cracks or scratches.
Destructive & Metallurgical Testing: Before shipping, samples undergo Rockwell/Vickers hardness testing, tensile strength profiling, elongation tests, and 180° bend testing to ensure stampability.
Full Traceability: Every shipped coil is accompanied by an EN 10204 3.1 Mill Test Certificate (MTC) mapping back to the original steel melt heat number.
FAQ
