China ASTM 316L Stainless Steel Coiled Tubes Coil Tubing China Suppliers Supplier, Suppliers
Specification: stainless steel coiled tube/pipeGrade:201 304 304L 316 316L 2205 2507 625 825 ectSize:6-25.4MMLength:600-3500M/coil Standard:ASTM A269 A249 SUS DIN JIS GB Surface :2B 8k Bright anneald Test :Yield strength, Tensile strength, Hardness ,Hydrapress MeasurementGuarantee&Inspection :The Third Party &CetificationAdvantage: We are a manufacturer . Lowest Price and Good Quantity
Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 better overall corrosion resistant properties than Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.
Grade 316L, the low carbon version of 316 and is immune from sensitisation (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm). There is commonly no appreciable price difference between 316 and 316L stainless steel.
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.
Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
Key Properties
These properties are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.
★ Stainless steel coiled tubes / coiled tubing other grades:
Stainless Steel 304 Coiled Tubes/ Coil Tubing
Stainless Steel 304L Coiled Tubes/ Coil Tubing
Stainless Steel 304H Coiled Tubes/ Coil Tubing
Stainless Steel 316 Coiled Tubes/ Coil Tubing
Stainless Steel 316L Coiled Tubes/ Coil Tubing
Stainless Steel 316H Coiled Tubes/ Coil Tubing
Stainless Steel 317L Coiled Tubes/ Coil Tubing
Stainless Steel 321 Coiled Tubes/ Coil Tubing
Stainless Steel 347 Coiled Tubes/ Coil Tubing
Stainless Steel 410 Coiled Tubes/ Coil Tubing
Stainless Steel 904L Coiled Tubes/ Coil Tubing
Stainless Steel 310S Coiled Tubes/ Coil Tubing
Stainless Steel 310 Coiled Tubes/ Coil Tubing
Stainless Steel 310H Coiled Tubes/ Coil Tubing
Stainless Steel 316Ti Coiled Tubes/ Coil Tubing
Stainless Steel 321H Coiled Tubes/ Coil Tubing
Stainless Steel 347H Coiled Tubes/ Coil Tubing
★ Seamless coiled tubing benefits:
Seamless coiled tubing is a no. 1 choice in most of the critical applications as there is no risk of impurities that are often associated with welded coiled tubing.
Made available in custom lengths
Improved system safety and reliability
Greater corrosion resistance
Reduces the use of fittings, preventing the possibilities of leaks and other long-term failures
Reduced installation costs – installation involves less time and efforts
With over ten years of experience exporting stainless steel tube products, our continuous welded pipe lines feature advanced bright annealing technology for online softening treatments. Backed by rigorous quality control testing (100% hardness, flaring, compression, and air tightness), we export high-reliability coils to international markets globally.
Frequently Asked Questions (FAQ)
What are the advantages of 316L stainless steel over standard 316 grade?
Grade 316L is a low-carbon version of 316, making it highly immune to sensitization (grain boundary carbide precipitation). This makes it particularly ideal for heavy-gauge welded components. Additionally, it offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures compared to standard chromium-nickel steels.
What standards govern these stainless steel coiled tubes?
The coiled tubes are manufactured in compliance with standard specifications including ASTM A269 and ASTM A249, ensuring structural integrity and precise dimension standards for general and heat exchanger services.
Why is seamless coiled tubing preferred over welded tubing?
Seamless coiled tubing is the preferred choice for critical applications because it eliminates weld seams, drastically reducing the risk of impurities, improving system safety, increasing corrosion resistance, and preventing potential leakage or long-term structural failures.
In which industries are stainless steel coiled pipes commonly used?
Common applications include refrigeration equipment, evaporators, condensers, petrochemical processing, CNG piping systems, boilers, desalination plants, geothermal plants, heat exchangers, and oil & gas pipeline instrumentation.
What custom sizing options and tolerances can be supplied?
Available outer diameters range from 6.52mm to 20mm, with wall thicknesses between 0.40mm and 1.5mm. Standard tolerances are kept strictly at OD ±0.1mm and wall thickness ±10%, with continuous coil lengths ranging from 300M up to 3500M.
What quality testing processes do the coiled tubes undergo?
Quality and compliance are guaranteed through online bright annealing treatment, followed by compression testing, flaring and bending tests, 100% hardness tests, stretch tests, and comprehensive air tightness testing.
Sihe Steel
