Explore our CE-marked, mill-certified precision cold-rolled steel strip solutions, slit coils, and engineered tool steel circular cutting discs manufactured to razor-thin tolerances.
Understanding material chemistry, microstructural grain orientation, cold-rolling reduction ratios, and mechanical tolerance controls in high-performance steel strip manufacturing.
In modern high-precision engineering, CE certified steel strips form the backbone of critical industrial components ranging from automotive spring elements and electrical transformers to cookware induction bases and precision industrial rotary cutters. Achieving true CE compliance under European standards (such as EN 10139 for cold-rolled low carbon steel strip and EN 10132 for heat-treated spring steel strip) demands precise mechanical property controls, zero-defect surface topography, and complete raw material chemical traceability.
The manufacturing journey of precision steel strip starts with hot-rolled coil pickling to remove oxide scale, followed by multi-pass cold rolling in reverse 4-high or 20-high Sendzimir mills. This process subjects the steel crystal lattice to intense strain hardening. By controlling the percentage of cold reduction (typically 40% to 85%), our metallurgical engineers achieve exact hardness tempers—ranging from soft annealed (LC) to full hard (C690 standard).
Subsequent continuous hydrogen annealing or batch bell annealing restores ductility by promoting controlled recrystallization without surface decarburization. For carbon spring steel grades (such as C67S, C75S, and 50CrV4), maintaining a fine spheroidized carbide structure prior to final hardening guarantees maximum fatigue life and flexural endurance during dynamic stress cycles.
Width tolerance and edge finish dictate how steel strips perform in high-speed automated stamping presses and roll-forming lines. Micro-burrs or edge camber can cause die jamming, tool chipping, or catastrophic web breakage.
Standard rotary shear slitting leaves a characteristic cut-and-break edge. Our inline deburring stations remove 99.8% of micro-burrs, protecting stamping dies and reducing edge crack propagation during deep drawing.
Mechanically profiled round edges eliminate sharp corners completely. Essential for spring steel applications, cable armoring, and safety components where friction wear against adjacent surfaces must be minimized.
Machined or shaved 90-degree square corners with tight width tolerances down to ±0.01mm. Ideal for fine-blanking operations and custom electrical contact strips requiring exact planar contact.
| Steel Grade Category | Standard Designation | Thickness Range | Tensile Strength (Rm) | Yield Strength (Re) | CE Compliance / Application |
|---|---|---|---|---|---|
| Low Carbon Cold-Rolled Strip | EN 10139 DC01 - DC06 / AISI 1008 | 0.10mm – 3.50mm | 270 – 410 MPa | ≥ 140 MPa | CE Marked / Deep Drawing |
| Ferritic Stainless Steel Strip | EN 1.4016 / AISI 430 | 0.30mm – 2.00mm | 450 – 600 MPa | ≥ 280 MPa | Induction Cookware / EU Food Contact |
| Austenitic Stainless Steel Strip | EN 1.4301 / AISI 304 | 0.08mm – 3.00mm | 540 – 750 MPa | ≥ 230 MPa | Corrosion-Resistant Hardware |
| High-Carbon Spring Steel Strip | EN 10132-4 C67S / C75S / SK5 | 0.15mm – 2.50mm | 1200 – 1650 MPa | ≥ 1050 MPa | CE Machinery / Spring Washers |
| Alloy Spring Steel Strip | EN 10132-4 50CrV4 / 75Cr1 | 0.40mm – 4.00mm | 1350 – 1800 MPa | ≥ 1200 MPa | High-Stress Saw Blades & Tools |
How global decarbonization mandates, smart automation, and supply chain regionalization are reshaping raw material selection for enterprise procurement leaders.
With the European Union’s Carbon Border Adjustment Mechanism (CBAM) entering full enforcement, procurement teams must track Scope 1, 2, and 3 embedded emissions per ton of steel. Future-ready steel strip manufacturers are transitioning to scrap-based Electric Arc Furnace (EAF) production and hydrogen-annealed cold rolling, dramatically reducing carbon intensity and ensuring tariff-free entry into European markets.
Miniaturization in automotive electronics, EV battery current collectors, and surgical instruments requires ultra-thin stainless steel foil and spring steel strips with gauge tolerances held within ±0.002mm. Advanced multi-roll cold rolling mills integrated with laser thickness sensors are becoming the industry standard to achieve micro-gauge consistency.
Traditional paper Mill Test Reports are being replaced by QR-coded digital material passports backed by cloud databases. Every slit coil can be scanned at the customer’s receiving bay to instantly pull chemical heat analysis, mechanical tensile graphs, and CE compliance certificates, cutting receiving inspection lead times from days to seconds.
Global supply chain disruptions have underscored the danger of single-facility dependency. By operating dual precision manufacturing plants in Mumbai (Maharashtra) and Sarigam (Gujarat), Jagruti Steels guarantees uninterrupted coil slitting, stamping, and heat treatment output during regional surges or maintenance downtime.
Consult with Our Procurement DirectorsOver 50 years of specialized metallurgical expertise, in-house die tooling capabilities, and mill-certified steel strip production tailored for international export markets.
Founded in 1974 in Mumbai, Jagruti Steels Pvt. Ltd. has grown from a specialized tooling workshop into an international manufacturer of cold-rolled steel strips, ferritic SS 430 induction plates, pressure cooker components, and custom deep-drawn engineering stampings. We engineer parts strictly to your technical drawings—never competing against you on retail shelves.
Third-party tooling delays destroy project launch schedules. Our facility designs, machines, and maintains custom progressive stamping dies, fine-blanking tooling, and slitting cutter sets in-house. This internal capability reduces first-article sample turnaround to days while lowering amortized tooling costs for OEM buyers.
Located just 35 kilometers from Jawaharlal Nehru Port Trust (JNPT) Mumbai, we export sea-freight packed steel strip coils, circle-cut blanks, and finished components to Germany, Turkey, Vietnam, UAE, Saudi Arabia, and the United States under standardized HS codes (7220 9090 & 7326 9099) with zero documentation delays.
Clear answers regarding CE certification standards, quality testing, custom slitting tolerances, and international shipment logistics.
Our steel strips are manufactured in full compliance with EN 10139 (Cold rolled uncoated mild steel narrow strip for cold forming), EN 10140 (Cold rolled narrow steel strip - Dimensions and tolerances), and EN 10132 (Cold rolled narrow steel strip for heat treatment). CE conformity guarantees that chemical composition limits (P & S below 0.025%), mechanical yield values, and dimensional tolerances strictly meet European Directives.
Yes. Every dispatch of steel strips or processed coils is accompanied by an official EN 10204 3.1 Mill Test Report. The certificate confirms heat-specific spectral chemical analysis (C, Mn, Si, P, S, Cr, Ni, Mo), tensile strength (Rm), yield point (Re), percentage elongation (A50mm), and Vickers/Rockwell hardness test results verified by our ISO 17025 accredited laboratory testing equipment.
Utilizing high-precision CNC rotary gang slitting machinery, we can slit steel coils down to a minimum width of 5.0mm. Standard width tolerance is held to ±0.05mm, with custom ultra-tight tolerances of ±0.005mm available upon request for high-precision stamping and electronic applications.
Induction cooktops heat cookware by inducing eddy currents through a strong magnetic field. SS 430 is a ferritic stainless steel grade possessing high magnetic permeability, allowing it to interact efficiently with induction coils. In contrast, SS 304 is austenitic and paramagnetic, making it inert on induction hobs. SS 430 also provides 16–18% Chromium corrosion resistance and excellent deep-draw formability.
Export-bound coils undergo a multi-layer protective packaging sequence: first, a light application of non-staining electro-refined rust preventive oil; second, vacuum-sealed VCI (Vapor Corrosion Inhibitor) plastic film wrap; third, corrugated edge guards and outer steel protective casing; and finally, heavy-duty wooden palletizing secured by high-tensile steel strapping for containerized shipping.
For existing raw material inventory requiring custom slitting or blanking, production lead time is typically 7 to 10 working days. For custom alloy grades or specialized heat-treated spring steel strip orders requiring dedicated die creation, sample first-article production takes 2 to 3 weeks, followed by full volume output upon sample sign-off.
Submit your CAD drawings, required material grade specifications, or coil dimensions today. Our senior engineering and procurement team will deliver a comprehensive factory-direct quotation within 24 hours.
