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Project Overview
A leading manufacturer in Turkey sought a dependable international supplier for premium stainless steel coils to support their expanding production operations across the home appliance and industrial equipment sectors. The client required consistent coil quality, precise thickness control, and a broad selection of surface finishes to feed their downstream stamping, roll-forming, and fabrication lines. With production volumes scaling rapidly, supply reliability and fast turnaround were non-negotiable requirements.
Client Profile
- Location: Turkey
- Industry: Home Appliance & Industrial Equipment Manufacturing
- Sourcing Objective: High-quality stainless steel coils with uniform gauge, excellent surface quality, and full international standard compliance for continuous production processing
- Critical Need: Consistent coil-to-coil quality to minimize production line adjustments and material waste during automated stamping and roll-forming operations
Product Specifications Delivered
| Parameter | Specification |
|---|---|
| Product Type | Stainless Steel Coil |
| Applicable Standards | ASTM, EN, JIS, GB, DIN |
| Material Grades | 201, 202, 304, 304L, 309S, 310S, 316, 316L, 316Ti, 317, 317L, 321, 347H, 405, 409, 410, 420, 430 |
| Manufacturing Technique | Cold Rolled & Hot Rolled |
| Thickness Range | 0.3mm – 6.0mm (Custom Gauge Available) |
| Width Range | 1000mm – 2000mm (Slit-to-Width Available) |
| Surface Finish Options | 2B, BA (Bright Annealed), No.4 (Brushed), HL (Hairline), No.8, No.1, No.3, Embossed, Satin, Bead Blast, Etched, PVD Coating |
| Minimum Order Quantity | 1 Ton (Sample Orders Accepted) |
| Payment Terms | 30% T/T Advance + 70% Balance |
Solution Highlights
1. Coil-Specific Quality Control
Unlike sheet products, stainless steel coils demand exceptional longitudinal consistency across the entire coil length — often spanning hundreds of meters. Our cold rolling process maintained ±0.02mm thickness tolerance from coil head to tail, verified through continuous in-line gauge monitoring. This consistency was critical for the client's automated stamping lines where gauge variation directly impacts tooling wear, part rejection rates, and overall equipment effectiveness (OEE). Each coil was supplied with a complete coil report documenting thickness profile, surface roughness, and mechanical properties sampled at multiple points along the length.
2. Application-Tailored Grade Selection
The client's dual production lines required distinctly different material strategies. For the home appliance division producing washing machine drums, oven cavities, and refrigerator panels, austenitic grades 304 and 304L with BA and No.4 finishes were selected to deliver the corrosion resistance and aesthetic appeal expected by European consumer markets. For the industrial equipment division manufacturing processing tanks and machinery housings, grades 316L and 430 were supplied with 2B and No.1 finishes, prioritizing chemical resistance and structural durability at competitive cost points.
3. Slit-to-Width Processing
All coils were delivered slit to the client's exact width specifications within the 1000mm–2000mm range, eliminating the need for in-house slitting operations. Precision slitting with minimal burr ensured smooth feeding through the client's roll-forming and stamping equipment. Edge conditioning was applied to all slit edges, preventing the micro-cracking that can initiate during subsequent forming operations and cause downstream quality issues.
4. Multi-Standard Documentation Package
Every coil shipment was accompanied by full mill test certificates (MTC) compliant with ASTM, EN, JIS, GB, and DIN standards. Documentation included detailed chemical composition analysis, tensile testing results (yield strength, tensile strength, elongation percentage), hardness values, and surface roughness (Ra) measurements. This comprehensive certification enabled the client to provide full material traceability to their European appliance brand customers, satisfying ISO 9001 and industry-specific quality audit requirements.
5. Flexible Supply Framework
The 1-ton minimum order quantity with sample acceptance allowed the client to validate material performance through trial production runs before committing to container-volume orders. The 30% advance plus 70% balance payment structure aligned with standard trade finance practices, while our 7-day delivery commitment provided the agility needed to respond to fluctuating downstream demand without maintaining excessive safety stock.
Logistics & Packaging
All stainless steel coils were packaged with waterproof paper and steel strip binding in standard seaworthy export packaging designed specifically for coil cargo. Each coil was mounted on a reinforced pallet or skid with edge protectors to prevent handling damage during container loading, ocean transit, and final delivery. Coil identification tags clearly displayed material grade, thickness, width, coil weight, heat number, and batch traceability codes, enabling efficient receiving and inventory management at the client's production facility.
Results & Value Delivered
- 7-Day Rapid Fulfillment: Consistent 7-day delivery cycle from order confirmation kept the client's automated production lines running without material-related downtime
- Zero Coil Rejections: 100% acceptance rate across all shipments, validated by the client's incoming quality inspection including gauge verification, surface inspection, and mechanical property testing
- Production Efficiency Gains: Uniform coil quality reduced stamping line setup adjustments by an estimated 30%, directly improving throughput and reducing scrap rates
- Supply Chain Consolidation: Single-supplier procurement across 18 stainless steel grades simplified the client's purchasing process, vendor management, and inbound logistics coordination
- Long-Term Partnership: The successful initial orders established a recurring supply relationship with volume growth quarter-over-quarter as the client expanded their appliance and industrial product lines
Key Success Factors
- Precision cold rolling technology ensures consistent gauge across entire coil length, minimizing production line variation at the client's facility
- In-house slitting capability with exact-width delivery eliminates the client's secondary processing cost and lead time
- Multi-standard mill test certification (ASTM / EN / JIS / GB / DIN) enables the client to satisfy diverse end-market quality compliance requirements
- 12 surface finish options from a single supplier support both functional industrial applications and premium consumer-facing products
- 7-day rapid delivery and flexible MOQ provide the supply chain agility needed for responsive manufacturing operations