Stainless Steel Coil Tube — Per-Meter Custom-Length Pricing Solution
Product Overview
Wenzhou Jixing Metal Materials Co., Ltd. offers high-quality stainless steel coil tubes engineered for maximum flexibility in procurement and fabrication. Unlike conventional fixed-length tube ordering, our coil tube product line introduces an innovative per-meter pricing model that includes cutting loss allocation, making it the ideal solution for small-batch orders, custom-length requirements, and retail-level procurement. This pricing structure ensures customers pay only for the exact length they need, with no hidden surcharges for cutting waste or minimum order quantities.
The stainless steel coil tube is supplied in continuous coil form, allowing downstream users to cut to any required length with minimal material waste. Whether you are a prototype developer, a small-scale fabrication shop, or a project engineer requiring precise lengths, our per-meter pricing model eliminates the cost burden of purchasing excess material.
Material & Properties
Our coil tubes are manufactured from premium-grade austenitic stainless steels, delivering exceptional corrosion resistance, mechanical strength, and formability. The coil form factor preserves the metallurgical integrity of the base material while offering superior handling characteristics compared to straight lengths.
- Base Grades Available: 304, 304L, 316, 316L, 321, 310S, and custom alloy compositions upon request
- Surface Finishes: 2B, BA (Bright Annealed), No. 4 Brushed, Mirror (8K), Custom PCD
- Corrosion Resistance: Excellent resistance to atmospheric, chemical, and intergranular corrosion environments
- Mechanical Properties: High tensile strength with superior ductility, enabling cold bending and forming without cracking
- Temperature Range: Operational performance from cryogenic temperatures up to 870°C (depending on grade)
- Hygienic Properties: Non-toxic, non-magnetic (austenitic grades), easily sterilizable — suitable for food-grade and pharmaceutical applications
Specifications
| Parameter | Specification |
|---|---|
| Product Form | Continuous Coil Tube |
| Outer Diameter Range | Φ3.0 mm – Φ108.0 mm |
| Wall Thickness Range | 0.3 mm – 6.0 mm |
| Coil Weight | 50 kg – 500 kg per coil (configurable) |
| Standard Lengths Available | Custom cut-to-length from coil (any length) |
| Tolerance (OD) | ±0.05 mm – ±0.15 mm (per ASTM A213 / ASME SA-213) |
| Tolerance (Wall) | ±10% of nominal wall thickness |
| Standards Compliant | ASTM A213, ASME SA-213, EN 10216-5, GB/T 14976 |
| End Condition | Plain end, beveled end, or custom per customer drawing |
| Packaging | Wooden pallet with protective wrapping; export-grade seaworthy packaging available |
Pricing Model — Per-Meter Pricing with Cutting Loss Allocation
Wenzhou Jixing Metal Materials Co., Ltd. implements a transparent per-meter (元/米) pricing structure for coil tube orders. This model is specifically designed for:
- Small-batch orders where bulk-length pricing would result in prohibitive per-unit costs
- Custom-length retail orders requiring precise dimensions without excess material
- Prototype and sample projects needing limited quantities at fair pricing
- Multi-grade, multi-dimension orders where mixed specifications complicate standard length pricing
The per-meter unit price includes cutting loss allocation, meaning the customer's quoted price already accounts for the material consumed during the cutting process. There are no additional charges for kerf loss, offcuts, or end-trim waste. This all-inclusive pricing approach provides complete cost predictability and eliminates budget surprises.
Key Advantage: Unlike traditional fixed-length pricing that forces customers to purchase full standard lengths (e.g., 6m or 12m bars), our per-meter model allows you to order exactly 1.37m, 4.52m, or any arbitrary length — paying only for what you receive. The cutting loss is already embedded in the per-meter rate, so there are zero hidden costs.
Manufacturing Process
Our stainless steel coil tubes undergo a rigorous multi-stage manufacturing process to ensure dimensional accuracy, metallurgical consistency, and surface quality:
- Raw Material Sourcing: Virgin stainless steel wire rod or strip from certified mills, verified by mill test certificates (MTC)
- Pipe Forming: Precision cold-rolled or hot-finished pipe blank formation using state-of-the-art rolling mills
- Seam Welding: High-frequency induction welding (for welded tubes) with 100% seam integrity inspection, or seamless piercing for seamless grades
- Heat Treatment: Solution annealing at controlled temperatures followed by rapid quenching to achieve full austenitic microstructure
- Pickling & Passivation: Acid pickling to remove scale and oxide layers, followed by passivation treatment to restore chromium oxide protective film
- Surface Finishing: Mechanical polishing, electropolishing, or chemical mirror polishing depending on specified finish
- Dimensional Inspection: 100% online OD and wall thickness gauging; ultrasonic flaw detection for seam tubes
- Coiling: Precision coiling with controlled tension to prevent deformation, kinking, or surface damage
- Final Quality Control: Spectroscopic chemical analysis, mechanical testing (tensile, hardness), hydrostatic pressure testing, and visual inspection
- Packaging & Marking: Protective packaging with clear identification labels indicating grade, dimensions, coil weight, and heat number
Applications
The versatility of stainless steel coil tubes in per-meter custom-length format makes them suitable for a wide range of industrial and commercial applications:
- Heat Exchangers & HVAC: Condenser tubes, evaporator coils, and refrigeration piping cut to precise circuit lengths
- Food & Beverage Processing: Sanitary piping, mixing equipment, and brewing systems requiring hygienic, custom-length runs
- Pharmaceutical & Medical: Clean-in-place (CIP) piping, instrument tubing, and surgical equipment components
- Chemical & Petrochemical: Corrosion-resistant process piping, valve bodies, and reactor internals
- Automotive & Aerospace: Exhaust systems, fuel lines, and structural tubing requiring specific lengths
- Furniture & Architectural: Decorative handrails, balustrades, and structural supports in custom dimensions
- Mechanical Engineering: Hydraulic cylinders, pneumatic systems, and precision machinery components
- Prototyping & R&D: Small-quantity custom parts for engineering development and testing
Quality Certifications
Wenzhou Jixing Metal Materials Co., Ltd. maintains comprehensive quality management systems and product certifications to ensure every coil tube meets international standards:
- ISO 9001:2015 — Quality Management System Certification
- ISO 14001 — Environmental Management System Certification
- EN 10204 3.1 — Third-party inspection certificates available upon request
- Mill Test Certificates (MTC) — Provided with every shipment, traceable to heat number
- NACE MR0175 / ISO 15156 — Compliance for sour service applications (selected grades)
- NSF / FDA — Food-grade compliance for applicable grades and finishes
- Third-Party Inspection: SGS, Bureau Veritas, or TÜV inspection available upon request
Why Choose Wenzhou Jixing — Unique Selling Points
- True Per-Meter Pricing: Industry-leading pricing model with cutting loss fully included — no surprises, no hidden fees
- Small-Batch Friendly: No minimum order quantity constraints; ideal for retail, prototyping, and project-based procurement
- Any Length, Any Quantity: Cut-to-length service from coil stock provides unlimited dimensional flexibility
- Full Traceability: Every coil is traceable to its mill heat number with complete MTC documentation
- Multi-Grade Availability: Wide selection of austenitic, duplex, and specialty alloy grades in stock
- Direct Manufacturer Pricing: Factory-direct supply eliminates middleman markups, delivering competitive unit costs
- Global Export Experience: Seaworthy packaging and international shipping expertise for worldwide delivery
Whether you require a single custom-length tube for a prototype or a batch of precisely dimensioned tubes for a production run, Wenzhou Jixing Metal Materials Co., Ltd. delivers the quality, flexibility, and transparent pricing your project demands.