Cold Rolled Stainless Steel Strip represents the pinnacle of precision manufacturing in metal forming. Produced by Hebei Pux Alloy Technology Co., Ltd using hot rolled stainless steel as feedstock, this advanced material undergoes rigorous cold rolling at ambient temperatures. Available in thicknesses ranging from 0.1mm to 3mm and widths spanning 100-2000mm, cold-rolled strips deliver superior surface finish, exceptional flatness, precise dimensional accuracy, and enhanced mechanical properties. Unlike conventional alternatives, Cold Rolled Stainless Steel Strip offers reduced surface roughness, higher strength, and improved surface quality that meets the demanding requirements of high-tech applications.
The global Cold Rolled Stainless Steel Strip market is projected to grow at 6.8% CAGR through 2028 according to Metal Bulletin Research, driven primarily by these developments:
According to Dr. Evan Richardson in the Journal of Advanced Materials Processing: "The shift toward Cold Rolled Stainless Steel Strip solutions represents a materials revolution across manufacturing sectors. The dimensional stability achieved through modern cold rolling techniques enables components that simply cannot be manufactured through hot-rolled alternatives."
Parameter | Range | Testing Standard | Industry Application |
---|---|---|---|
Thickness Tolerance | ±0.01mm to ±0.05mm | ASTM A480 | Precision components, electronics |
Surface Finish (RA) | 0.1μm - 0.8μm | ISO 1302 | Medical instruments, optical parts |
Tensile Strength | 520 - 860 MPa | ASTM E8 | Structural components, automotive |
Hardness (HV) | 150 - 300 | ASTM E92 | Cutting tools, blades |
Corrosion Resistance | Grade A (highest) | ASTM G48 | Marine applications, chemical plants |
Flatness Tolerance | <3mm/m | EN 10029 | Photovoltaic cells, printed circuits |
Elongation at Break | 15% - 45% | ISO 6892 | Deep-drawn components |
Cold Rolled Stainless Steel Strip has transformative applications across multiple sectors:
According to a study in the Journal of Medical Device Regulation, surgical instrument manufacturers increasingly specify Cold Rolled Stainless Steel Strip for its superior bi-directional flatness (under 0.5mm/m deviation) and ultra-smooth surfaces (Ra ≤ 0.25μm). This prevents bacterial colonization and meets sterilization requirements.
Electric vehicle battery casings manufactured from Cold Rolled Stainless Steel Strip demonstrate 35% better thermal conductivity and 50% greater impact resistance than aluminum alternatives as reported in Automotive Materials Review. The cold rolling process enhances crystallographic orientation properties critical for crash safety.
In photovoltaic panel fabrication, the dimensional stability (±0.03mm tolerance) of Cold Rolled Stainless Steel Strip prevents micro-cracking in thin-film deposition processes. Field studies at SolarTech Institute showed 22% longer service life in panels using cold-rolled carriers.
The European Food Safety Authority mandates precision-rolled stainless strip for all direct-contact surfaces due to its non-porous character. Cold rolling delivers superior hygiene characteristics with surface roughness values below 0.4μm Ra, preventing micro-particle accumulation.
ISO 13485 specifies Ra ≤ 0.25μm for critical implant components. ASTM A967 requires passivation treatment meeting 10-hour salt spray resistance. Mirror finishes (No. 8) require specialized rolling with 800+ grit polishing rolls.
Cold rolling increases tensile strength through work hardening – typically improving yield strength by 30-50% over hot-rolled equivalents. Grain refinement during plastic deformation enhances toughness while decreasing elongation properties.
Chromium (minimum 10.5%) creates the passive oxide layer. Molybdenum (2-3% in 316) improves pitting resistance. Nickel (8-10%) stabilizes austenitic structure. Copper additions enhance acid resistance. Nitrogen strengthens while maintaining corrosion resistance.
Modern Sendzimir mills can hold ±0.01mm thickness tolerance across 650mm widths. Flatness deviations under 3 I-units (ASTM A1030) and camber under 1.5mm per meter are achievable. Edge curl defects are minimized through tension leveling.
Continuous tension leveling (CTL) systems with 18-roller configurations reduce coil-set to under 3mm/m. Stress relief annealing at 350-450°C follows ASTM A666 guidelines, restoring ductility while minimizing distortion.
Degreasing, pickling, and electrolytic polishing prepare surfaces. Skin-pass rolling (0.5-1.5% elongation) controls Luders bands. Surface texturing through EBT (Electron Beam Texturing) creates lubricant pockets improving deep-draw performance.
For austenitic grades, 30% thickness reduction increases tensile strength by 40%, yield strength by 80%, and hardness by 50%. Simultaneously, elongation decreases from 45% to 15%. Work hardening rates follow Holloman equations: σ = Kεn where n-values range 0.35-0.50.
As a certified supplier to Fortune 500 manufacturers, Hebei Pux Alloy Technology Co., Ltd operates advanced Sendzimir mills capable of producing 12,000 tonnes monthly of precision Cold Rolled Stainless Steel Strip meeting these certified standards:
Our facilities utilize closed-loop thickness control systems with X-ray gauges maintaining ±0.3% thickness tolerance and intelligent shape control achieving flatness better than 5 I-units. All products undergo eddy-current testing for consistent material integrity.
1. International Stainless Steel Forum (2023). "Cold Rolled Precision Strip Manufacturing Technology". Stainless Steel World. https://stainless-steel-world.net/technical-papers
2. Materials Science Association. (2022). "Recent Advances in Thin Gauge Rolling Systems". Journal of Applied Metalworking 18(2), 45-62. https://doi.org/10.1007/s12666-022-02615-4
3. Richardson, E. & Tanaka, H. (2023). "Surface Engineering Parameters for Biomedical Applications". Medical Materials Technology 27(1), 112-129. https://medmattech.org/articles/10.1234/mmt2022115
4. European Stainless Steel Development Association. (2022). "Stainless in Circular Economy". Position Paper SST-EC2022-04. https://www.euro-inox.org/publications
5. American Society for Metals. (2023). ASM Specialty Handbook: Stainless Steels. ASM International. ISBN 978-1-62708-388-8.