Stainless Steel Short Coil Tube (30m–100m/Coil)
Product Overview
Wenzhou Jixing Metal Materials Co., Ltd. presents its precision-engineered Stainless Steel Short Coil Tube, available in compact coil lengths ranging from 30 meters to 100 meters per coil. This short-coil configuration is specifically designed to address the practical challenges of manual handling, transportation, and installation in confined or space-constrained environments. Unlike standard long-coil offerings, these shorter coils reduce the need for heavy lifting equipment and minimize material waste during cutting and fabrication.
Each coil is manufactured to exacting dimensional tolerances and undergoes rigorous quality inspection to ensure consistent performance across all grades and specifications. The short-coil format represents an ideal solution for applications where logistical efficiency and on-site installability are paramount.
Material & Properties
- Available Grades: 304, 304L, 316, 316L, 321, 310S, 904L, and custom alloy compositions upon request
- Corrosion Resistance: Superior resistance to oxidation, pitting, and crevice corrosion across a wide range of chemical and environmental conditions
- Mechanical Strength: Excellent tensile strength and fatigue resistance suitable for both static and dynamic loading applications
- Hygienic Surface Finish: Available in 2B, BA, No.4, mirror polish (Ra ≤ 0.4 μm), and sanitary electropolished finishes
- Temperature Range: Operational temperatures from cryogenic levels up to 1100°C (grade-dependent)
- Food & Pharmaceutical Grade: Compliant with FDA, EC 1935/2004, and 3-A Sanitary Standards for hygienic processing applications
Specifications
| Parameter | Specification |
|---|---|
| Coil Length | 30 m – 100 m per coil (Short Coil) |
| Outer Diameter (OD) | 3 mm – 325 mm (custom sizes available) |
| Wall Thickness | 0.1 mm – 12 mm |
| OD Tolerance | ±0.05 mm (precision grade); ±0.1 mm (standard grade) |
| Wall Thickness Tolerance | ±10% or ±0.02 mm (whichever is greater) |
| Coil Inner Diameter (ID) | 200 mm – 800 mm (adjustable per customer requirement) |
| Surface Finish | 2B / BA / No.4 / Mirror / Electropolished |
| Manufacturing Method | Seamless / Welded (ERW / TIG) |
| End Treatment | Plain / Beveled / Threaded / Custom |
| Packaging | Wooden reel with moisture-proof wrapping; export-standard palletization |
| Standards Compliance | ASTM A213 / A269 / A270, EN 10216-5 / 10217, GB/T 12771 / 13296 |
Unique Selling Points
- Manual Handling Friendly: The 30–100 m short-coil format significantly reduces coil weight, enabling single-operator or small-team manual transport without the need for cranes, forklifts, or specialized rigging equipment.
- Ideal for Confined-Space Installation: Compact coil dimensions facilitate navigation through tight access points, narrow corridors, and vertically restricted areas where full-length coils cannot be maneuvered.
- Reduced Material Waste: Shorter coils allow for more precise cutting to match specific project requirements, minimizing off-cuts and scrap generation during fabrication.
- Lower Inventory & Storage Costs: Smaller coil footprints reduce warehouse space requirements and simplify inventory management for end-users.
- Customizable Coil Configuration: Coil length can be tailored within the 30–100 m range to precisely match the customer's project scope, tooling constraints, and logistics profile.
Manufacturing Process
- Raw Material Selection: High-purity stainless steel billet or strip sourced from certified mills, with full chemical composition verification via spectrometric analysis.
- Piercing & Elongation (Seamless): Hot-rolled billet is pierced and rolled to produce seamless tube blanks with uniform wall thickness.
- Forming & Welding (Welded): Precision cold-rolled strip is formed into tube geometry and welded using ERW or TIG processes with inline weld inspection.
- Heat Treatment: Solution annealing and stress-relief treatments performed in protective atmospheres (nitrogen or vacuum) to ensure optimal grain structure and mechanical properties.
- Precision Sizing: Cold drawing, mandrel expansion, or rotary piercing to achieve final OD and wall dimensions within specified tolerances.
- Surface Finishing: Pickling, passivation, and polishing to achieve the required surface finish and corrosion resistance.
- Coiling: Tubes are coiled onto precision-wound reels at controlled tension to maintain dimensional integrity and prevent kinking or deformation.
- Non-Destructive Testing (NDT): 100% ultrasonic testing (UT), eddy current testing (ECT), and hydrostatic pressure testing to verify wall integrity and absence of defects.
- Final Inspection & Packaging: Dimensional verification, surface quality audit, and protective packaging for safe transit.
Applications
- Food & Beverage Processing: Hygienic piping for dairy, brewery, and pharmaceutical production lines where compact installation spaces are common.
- Medical & Laboratory Equipment: Tubing for medical devices, laboratory instrumentation, and diagnostic machinery requiring short-run installations.
- Automotive & Aerospace: Fuel lines, brake lines, exhaust components, and structural tubing for vehicle and aircraft assemblies.
- Chemical & Petrochemical Processing: Process piping in plants with restricted access areas or mobile processing units.
- Heat Exchangers & HVAC: Compact coil tubes for shell-and-tube heat exchangers, condensers, and air-handling units.
- Marine & Offshore: Corrosion-resistant tubing for shipboard systems, offshore platforms, and subsea equipment where space is at a premium.
- Architectural & Decorative: Handrails, balustrades, and structural elements in buildings with tight installation corridors.
- Mechanical Engineering: Hydraulic lines, pneumatic systems, and general-purpose mechanical tubing for OEM equipment manufacturers.
Quality Certifications
- ISO 9001:2015 — Quality Management System certification ensuring consistent product quality and process control.
- ISO 14001 — Environmental Management System certification for sustainable manufacturing practices.
- ISO 45001 — Occupational Health and Safety Management System certification.
- EN 10204 3.1 — Full third-party inspection and testing certification for material traceability and compliance.
- Mill Test Certificates (MTC): Provided with every shipment, documenting chemical composition, mechanical properties, and dimensional conformity.
- Third-Party Inspection Available: SGS, BV, or TÜV inspection services available upon customer request.
Wenzhou Jixing Metal Materials Co., Ltd. — With decades of expertise in stainless steel tube manufacturing, we deliver short-coil solutions that combine precision engineering with logistical practicality. Whether your project demands a 30-meter coil for a compact retrofit or a 100-meter coil for a mid-scale fabrication run, our manufacturing capability and quality assurance framework ensure every coil meets the highest international standards.