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ASTM A269 316L Stainless Steel Coiled Tube Pipe Suppliers
Introduction
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 specification
- Standards: ASTM A269/A249 standard
- Grade: TP304, TP316L 304 316 310S 2205 825 625
- Trade Name : SS304 Coiled Tubes, SS316 Coiled Tubes, Duplex Coiled Tubes, Monel 400 Coiled Tubes, Hastelloy Coiled Tubes, Inconel coiled Tubes, 904L Coiled Tubes, Seamless Coiled Tubes, Welded Coiled Tubing
- Out diameter: 6.52-19.05mm
- Thickness: 0.2-2MM
- Tolerance: OD± 0.1mm, wall thickness: ±10%, length: ±5mm
- Length: 300-3500M/coil
- Packaging: iron pallet ,wooden pallet ,poly bag
- Application : refrigeration equipment, evaporator, gas liquid delivery, condenser, beverage machine
- State: soft / half hard / soft bright annealing
- Specifications : outer diameter 6.52mm-20mm, wall thickness: 0.40mm-1.5mm
- Tolerance range: diameter: + 0.1mm, wall thickness: + 10%, length: -0/+6mm
- Length: 800-3500M or according to customer requirements.
- Product advantages: surface polishing and fine, uniform wall thickness, tolerance precision etc.
- Commonly Size of stainless steel coiled tube: we can product them as your request.
Composition & Mechanical Properties
Composition ranges for 316L stainless steels coiled tubing coiled tubes
| Grade |
Range |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 316L |
Min |
- |
- |
- |
- |
- |
16.0 |
2.00 |
10.0 |
- |
| Max |
0.03 |
2.0 |
0.75 |
0.045 |
0.03 |
18.0 |
3.00 |
14.0 |
0.10 |
Table 1. Composition ranges for 316L stainless steel coiled tubing.
Mechanical properties of 316L stainless steels coiled tubing /coiled tubes
| Grade |
Tensile Str (MPa) min |
Yield Str 0.2% Proof (MPa) min |
Elong (% in 50mm) min |
Hardness |
| Rockwell B (HR B) max |
Brinell (HB) max |
| 316L |
485 |
170 |
40 |
95 |
217 |
Table 2. Mechanical properties of 316L stainless steel coiled tubing.
Physical Properties
| Grade |
Density (kg/m³) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Elec Resistivity (nΩ.m) |
| 0-100°C |
0-315°C |
0-538°C |
At 100°C |
At 500°C |
| 316/L/H |
8000 |
193 |
15.9 |
16.2 |
17.5 |
16.3 |
21.5 |
500 |
740 |
Table 3. Typical physical properties for 316 grade stainless steels.
Grade Specification Comparison
| Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
| BS |
En |
No |
Name |
| 316L |
S31603 |
316S11 |
- |
1.4404 |
X2CrNiMo17-12-2 |
2348 |
SUS 316L |
Table 4. Grade specifications for 316L stainless steels.
Stainless steel coiled tubes/coil tubing common size range
| Size of Stainless steel Coil Tube |
| ITEM |
Grade |
Size (MM) |
Pressure (Mpa) |
Length (M) |
| 1 |
316L、304L、304 alloy 625 825 2205 2507 |
1/8″×0.025″ |
3200 |
500-2000 |
| 2 |
316L、304L、304 alloy 625 825 2205 2507 |
1/8″×0.035″ |
3200 |
500-2000 |
| 3 |
316L、304L、304 alloy 625 825 2205 2507 |
1/4″×0.035″ |
2000 |
500-2000 |
| 4 |
316L、304L、304 alloy 625 825 2205 2507 |
1/4″×0.049″ |
2000 |
500-2000 |
| 5 |
316L、304L、304 alloy 625 825 2205 2507 |
3/8″×0.035″ |
1500 |
500-2000 |
| 6 |
316L、304L、304 alloy 625 825 2205 2507 |
3/8″×0.049″ |
1500 |
500-2000 |
| 7 |
316L、304L、304 alloy 625 825 2205 2507 |
1/2″×0.049″ |
1000 |
500-2000 |
| 8 |
316L、304L、304 alloy 625 825 2205 2507 |
1/2″×0.065″ |
1000 |
500-2000 |
| 9 |
316L、304L、304 alloy 625 825 2205 2507 |
φ3mm×0.7mm |
3200 |
500-2000 |
| 10 |
316L、304L、304 alloy 625 825 2205 2507 |
φ3mm×0.9mm |
3200 |
500-2000 |
| 11 |
316L、304L、304 alloy 625 825 2205 2507 |
φ4mm×0.9mm |
3000 |
500-2000 |
| 12 |
316L、304L、304 alloy 625 825 2205 2507 |
φ4mm×1.1mm |
3000 |
500-2000 |
| 13 |
316L、304L、304 alloy 625 825 2205 2507 |
φ6mm×0.9mm |
2000 |
500-2000 |
| 14 |
316L、304L、304 alloy 625 825 2205 2507 |
φ6mm×1.1mm |
2000 |
500-2000 |
| 15 |
316L、304L、304 alloy 625 825 2205 2507 |
φ8mm×1mm |
1800 |
500-2000 |
| 16 |
316L、304L、304 alloy 625 825 2205 2507 |
φ8mm×1.2mm |
1800 |
500-2000 |
| 17 |
316L、304L、304 alloy 625 825 2205 2507 |
φ10mm×1mm |
1500 |
500-2000 |
| 18 |
316L、304L、304 alloy 625 825 2205 2507 |
φ10mm×1.2mm |
1500 |
500-2000 |
| 19 |
316L、304L、304 alloy 625 825 2205 2507 |
φ10mm×2mm |
500 |
500-2000 |
| 20 |
316L、304L、304 alloy 625 825 2205 2507 |
φ12mm×1.5mm |
500 |
500-2000 |
Our Advantages
- We are a stainless steel coiled tube/pipe manufacturer.
- We can control the quality of pipe by ourselves.
- The length of the pipes is more than 3500M/Coil.
Applications
- Food & Beverage Industry
- Petrochemical
- CNG Piping Jobs
- Boilers
- Desalination Plants
- Geothermal Plants
- Heat Exchangers
- Instrumentation Jobs
- Mechanical Jobs
- Oil and Gas Equipments and Piping Works
Other Available 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
We have experience to export stainless steel tube products for more than ten years.
Production Description
Production of stainless steel coil has ten years of history, has two production lines can produce continuous welded pipe, equipment is perfect, the technology leader. But the company introduced the world first-class bright annealing technology, can online stainless steel pipe softening treatment. In addition, we also have compressed, flaring, bending test, hardness 100%, stretch, air tightness test and so on, the price is reasonable, quality is reliable, the current US 80% coil export to all over the world.
Frequently Asked Questions (FAQ)
What are the main advantages of ASTM A269 Grade 316L stainless steel coiled tubing?
Grade 316L is a low-carbon alternative to Grade 316, making it immune to grain boundary carbide precipitation (sensitisation). The added molybdenum offers superior resistance to pitting and crevice corrosion in chloride-rich environments compared to Grade 304, along with excellent toughness at cryogenic temperatures.
Why should I choose seamless coiled tubing over welded coiled tubing?
Seamless coiled tubing is the preferred option for critical applications because it eliminates the risk of impurities often associated with welded seams. It offers higher system reliability, better corrosion resistance, requires fewer fittings to install, and minimizes potential leak points.
What size ranges and tolerances do you provide for coiled tubes?
We offer outer diameters ranging from 6.52mm to 20mm and wall thicknesses from 0.2mm to 2.0mm. The standard dimensional tolerance is OD ± 0.1mm, wall thickness ± 10%, and length ranges up to 3500 meters per coil depending on customer specifications.
What industries and applications are suitable for stainless steel coiled tubing?
Our coiled pipes are widely used in refrigeration equipment, heat exchangers, evaporators, condensers, food and beverage industries, petrochemical processes, CNG piping installations, geothermal plants, instrumentation lines, and oil & gas equipment.
What quality control testing is performed on the coiled pipes?
Every batch undergoes rigorous quality control inspections, including bright annealing, flaring, compression, bending tests, 100% hardness evaluation, tensile strength testing, and air tightness checks to ensure safety and system reliability.
What packaging options are available for shipping coiled tubes?
To guarantee the tubes are protected during transportation, they are packaged using robust methods including iron pallets, wooden pallets, and protective poly bags tailored to different shipping requirements.
Sihe Steel
