Standard Stainless Steel Coil Tube — ID ≥600 mm / OD ≤1200 mm
Product Overview
The Standard Stainless Steel Coil Tube offered by Wenzhou Jixing Metal Materials Co., Ltd is a precision-engineered coiled tubing solution designed for industrial-scale processing, fabrication, and logistics efficiency. Manufactured in strict compliance with international metallurgical and dimensional standards, these coil tubes are supplied in standardized coil configurations that ensure seamless integration into downstream manufacturing workflows, from cutting and forming to welding and assembly.
Available in a wide range of stainless steel grades — including 304, 304L, 316, 316L, 321, 310S, 904L, and custom alloy compositions — these coil tubes deliver outstanding corrosion resistance, mechanical strength, and long-term service life across demanding operating environments.
Key Selling Points
- Standardized Coil Geometry — Inner diameter ≥600 mm and outer diameter ≤1200 mm ensures compatibility with standard industrial handling equipment.
- Forklift & Crane Compatible — Coil dimensions are optimized for safe and efficient loading, unloading, and internal plant transport via standard forklifts, overhead cranes, and hoists.
- Logistics-Ready Design — Uniform coil sizing facilitates standardized container loading, palletization, and shipping, significantly reducing freight costs and transit damage risk.
- High Material Consistency — Continuous coil production minimizes butt-weld joints and ensures uniform mechanical and chemical properties along the entire tube length.
- Wide Grade Availability — Covers austenitic, duplex, and super-austenitic stainless steel grades to meet diverse corrosion, temperature, and pressure requirements.
Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Coil Inner Diameter (ID) | ≥ 600 mm | Ensures easy tube extraction and straightening |
| Coil Outer Diameter (OD) | ≤ 1200 mm | Compatible with standard forklift and crane capacity |
| Coil Weight (Typical) | 1,000 – 3,000 kg | Optimized for single-lift handling |
| Tube Outer Diameter | 6.00 mm – 168.00 mm | Custom sizes available upon request |
| Tube Wall Thickness | 0.30 mm – 12.00 mm | Tolerance ±0.10 mm or better |
| Tube Length per Coil | 100 m – 1,000 m (continuous) | Minimizes waste; reduces joint count |
| Stainless Steel Grades | 304, 304L, 316, 316L, 321, 310S, 904L, Duplex 2205, Custom | Per ASTM, EN, JIS, GB standards |
| Surface Finish | 2B, BA, No.4, Mirror (6K/8K), Pickled & Passivated | Custom finishes available |
| Applicable Standards | ASTM A269, A554, A213; EN 10216-5; GB/T 12771 | Full traceability and compliance |
| Packaging | Steel banding + wooden crate or steel frame | Export-grade seaworthy packaging |
Material & Properties
Wenzhou Jixing Metal Materials Co., Ltd sources raw stainless steel from certified mills and subject every incoming batch to rigorous spectrometric analysis to verify chemical composition within specified limits. The resulting coil tubes exhibit the following core properties:
- Corrosion Resistance: Excellent resistance to atmospheric, chemical, and marine environments, particularly in 316/316L and 904L grades.
- Mechanical Strength: High tensile strength and yield strength with favorable elongation characteristics, ensuring ductility for cold forming operations.
- Temperature Performance: Maintains structural integrity from cryogenic temperatures up to 1,100°C (grade-dependent).
- Hygienic Properties: Non-toxic, non-magnetic (austenitic grades), and easily cleaned — ideal for food-grade and pharmaceutical applications.
- Weldability: Excellent weldability with minimal risk of intergranular corrosion, especially in low-carbon L-grade variants.
Manufacturing Process
The production of Standard Stainless Steel Coil Tubes follows a tightly controlled, multi-stage process:
- Raw Material Inspection: Incoming stainless steel strip or round bar is verified for chemical composition, mechanical properties, and surface quality via spectrometry and visual inspection.
- Piercing & Forming: Billets are heated and pierced into seamless tube blanks, or cold-rolled strip is formed into tube bodies.
- Heat Treatment: Tubes undergo solution annealing (1050–1150°C) followed by controlled cooling to achieve uniform austenitic microstructure and optimal corrosion resistance.
- Precision Sizing: Multi-stand cold rolling or cold drawing ensures dimensional accuracy within ±0.05 mm tolerance on OD and ±10% on wall thickness.
- Surface Treatment: Pickling and passivation remove oxide scales and form a protective chromium oxide film; additional polishing or brushing may be applied per customer specification.
- Coiling: Tubes are wound onto precision steel coils within the ID ≥600 mm / OD ≤1200 mm envelope using automated coiling equipment to prevent surface marking or deformation.
- Final Quality Control: Every coil undergoes hydrostatic testing, dimensional verification, surface inspection, and chemical analysis before certification and dispatch.
Applications
The standardized coil format and versatile material options make these stainless steel coil tubes suitable for a broad spectrum of industrial applications:
- Heat Exchangers & Boilers: Continuous coil supply reduces welding joints, improving thermal efficiency and leak resistance.
- Food & Beverage Processing: Hygienic surface finishes and food-grade alloys (304, 316L) meet FDA and EU 1935/2004 requirements.
- Pharmaceutical Equipment: Mirror-finish coil tubes for CIP/SIP-compatible process lines.
- Petrochemical & Oil & Gas: High-grade alloys (316L, 904L, 310S) withstand aggressive corrosive media and elevated temperatures.
- Automotive & Exhaust Systems: High-temperature resistant grades for catalytic converter substrates and exhaust manifolds.
- Construction & Architectural: Decorative and structural tubing for railings, balustrades, and facade elements.
- Medical Devices: Biocompatible tubing for surgical instruments, implant components, and diagnostic equipment.
- Energy & Solar Thermal: Heat collection tubes and vacuum tube assemblies.
Quality Certifications & Compliance
Wenzhou Jixing Metal Materials Co., Ltd maintains a comprehensive quality management system and holds the following certifications and compliances:
- ISO 9001:2015 — Quality Management System certification
- ISO 14001 — Environmental Management System
- ISO 45001 — Occupational Health & Safety Management
- CE Marking — European Conformity for pressure equipment and machinery components
- EN 10204 3.1 — Material test certificates per EN 10204 Type 3.1
- ASTM / ASME Compliance — Full adherence to American standards for stainless steel tubing
- Mill Test Reports (MTR) — Provided with every shipment, traceable to heat number and coil batch
- Third-Party Inspection — Available upon customer request (SGS, BV, TÜV)
Wenzhou Jixing Metal Materials Co., Ltd — Delivering precision-engineered stainless steel coil tubes with standardized logistics-ready coil geometry, full material traceability, and internationally certified quality. Contact us for custom specifications, competitive pricing, and reliable global supply.