In today's global stainless steel market, price transparency is becoming increasingly important for procurement teams. Among all austenitic stainless steel products, 316L stainless steel coils remain one of the most widely used materials in industries such as chemical, pharmaceutical, food processing equipment, and precision instruments. However, its price is far from fixed; market fluctuations, processing techniques, and technical specifications all play a decisive role.
what is 316L stainless steel coil tube?
316L stainless steel coil is a continuous, long tubular metal tube made of high-quality low-carbon 316 grade stainless steel. The "L" indicates low carbon, preventing the material from becoming brittle or experiencing performance degradation during welding. It is suitable for highly corrosive, high-temperature, and high-pressure environments, and can reach lengths of up to 1300m.
316L stainless steel coil tube price
The price of 316/316L stainless steel coil tubing varies significantly depending on whether you are purchasing raw materials in bulk or pre-cut retail tubing.
Globally, wholesale prices generally range from USD 2.00 to USD 6.50 per kilogram (USD 2,000 to USD 6,500 per metric ton), depending on wall thickness, seamless or welded construction, and dimensional tolerance requirements.
Retail prices for precision pre-packaged instrumentation or brewing coil tubing typically range from USD 1.50 to USD 12.00 per foot, with pricing dynamically affected by outer diameter and wall thickness.
For bulk industrial production, heat exchanger manufacturing, or distributor orders, GNEE Stainless Steel provides quotations based on weight, processing requirements, and manufacturing specifications.
Reference Wholesale Price Range
Welded 316L Coil Tubing: USD 1.50 – 3.50 / kg
Seamless (Cold Drawn) 316L Coil Tubing: USD 3.50 – 6.50 / kg
Capillary / Ultra-Thin Precision Coil Tubing: USD 8.50 – 15.00 / kg
Key Factors Affecting the Price of 316 Stainless Steel Coiling Tubing
Seamless vs. Welded: Seamless coils offer higher pressure resistance and have no internal welds, typically costing over 30% more than ordinary welded coils.
Processing Technology (e.g., BA Bright Annealing): Coilings treated with hydrogen-protected bright annealing (BA) have superior surface cleanliness and corrosion resistance, resulting in a higher price. They are commonly used in chromatographic analysis or ultrapure gas pipelines.
Thickness and Outer Diameter Accuracy: The thinner the wall thickness and the stricter the tolerance control (e.g., capillary coils), the greater the processing difficulty and the higher the unit price per kilogram.
316L stainless steel coil tube supplier
GNEE can produce ultra-long continuous coils (up to 1300 meters) without rail welding. This is crucial for subsea control pipelines, umbilical cable systems, and chemical injection pipelines, eliminating the risk of leaks at joints and reducing installation time.
316L stainless steel coil tube specifications
| Feature | GNEE Technical Specification |
| Material Grade | TP316/316L (Dual Certified), 316Ti, 317L, 904L, Duplex 2205 |
| Manufacturing Type | Seamless (SMLS) or Welded & Redrawn (W&R) |
| Outside Diameter (OD) | 3.18 mm to 25.4 mm (1/8" to 1") |
| Wall Thickness (WT) | 0.5 mm to 2.11 mm (0.020" to 0.083") |
| Continuous Length | 50m, 100m, 500m, up to 1500m+ (depending on OD/WT) |
| Surface Finish | Bright Annealed (BA), Electropolished (EP), or AP |
| Hardness Control | Typically < 80 HRB (Optimized for bending and fittings) |
| Standard Compliance | ASTM A269, ASTM A213, ASTM A249, EN 10216-5 |
| Internal Cleanliness | Thermocouple Cleaned / Oxygen Cleaned (ASTM A632) |
Non-Destructive Testing (NDT)
Every coil produced by GNEE undergoes rigorous testing before shipment:
100% Hydrostatic Testing: Ensures pressure resistance.
100% Eddy Current Testing: Detects any surface or subsurface defects.
Dimensional and Hardness Testing: Ensures the tubing is both flexible enough for field bending and strong enough to withstand high pressure.
Professional Export Packaging
Coils are easily damaged during transport. GNEE provides:
Wooden/Plastic Spools: Facilitates field unwinding.
Plywood Crates: Prevents bending or flattening during sea transport.
Moisture-Proof Packaging: Maintains the mirror-like shine of the bright annealed (BA) surface.
