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.
Composition & 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
- Think: 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 Ranges for 316L Stainless Steels Coiled Tubing
Mechanical Properties
| Grade |
|
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 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 steels coiled tubing /coiled tubes
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
| 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
- SS 304
- SS 304L
- SS 304H
- SS 316
- SS 316L
- SS 316H
- SS 317L
- SS 321
- SS 347
- SS 410
- SS 904L
- SS 310S
- SS 310
- SS 310H
- SS 316Ti
- SS 321H
- SS 347H
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
Production & Quality Control
We have experience to export stainless steel tube products for more than ten years.
Description: Production of stainless steel coil has ten years of history, with two production lines capable of producing continuous welded pipe using perfect equipment and leading technology. Featuring world first-class bright annealing technology, online stainless steel pipe softening treatment is fully integrated. In addition, comprehensive testing is conducted including compressed, flaring, bending tests, 100% hardness tests, stretch tests, and air tightness tests, ensuring reliable quality and reasonable pricing. Currently, 80% of our coil products are exported worldwide.
Related Products
304 grade Stainless Steel Coiled Tube, 304 stainless steel capillary Coiled Tube, 304 Hydraulic Control Line, Duplex 2205 Coiled tubing Control Line, Monel400, Inconel 825 Coiled tubing Control Line. Stainless steel Control Line, stainless steel bening tube, Steel rolled pipe.bending stainless steel tubing into coil, coiled pipe,downhole completion tools, Capillary tubing Seamless ,Coiled Stainless Steel tube, 1/4”*0.035 1/4”*0.0249 3/8”*0.049” 3/8”*0.035” 1/4”*0.035” 12”*0.049” Coiled Tubing Chemical Injection Line,STAINLESS STEEL CAPILLARY TUBE SUPPLIERS,304 STAINLESS STEEL COILED TUBING CONTROL LINE, STAINLESS STEEL 304L COILED TUBING CONTROL , SEAMLESS STAINLESS STEEL CONTROL LINE MANUFACTURER CHINA, STAINLESS STEEL WELDED COILED TUBING, STAINLESS STEEL CAPILLARY TUBING IMPORTER, STAINLESS STEEL COILED TUBES SUPPLIER, SS CAPILLARY TUBING in China.
Frequently Asked Questions (FAQ)
What are the primary applications for ASTM A269 316L stainless steel coiled tubing?
This grade of coiled tubing is heavily used for control lines, chemical injection lines, umbilicals, hydraulic systems, refrigeration, evaporators, condensers, and in the food and beverage industry.
What is the difference between Grade 316 and Grade 316L stainless steel coiled tubes?
Grade 316L is the low-carbon version of 316. This makes it immune to grain boundary carbide precipitation (sensitisation), making it ideal for heavy-gauge welded components (over 6mm) while retaining excellent toughness at cryogenic temperatures.
What are the sizing tolerances and length capabilities of your coiled tubing?
Standard sizes range from 6.52mm to 20mm in outer diameter with wall thicknesses from 0.40mm to 1.5mm. Lengths can reach up to 300 to 3500 meters per coil, ensuring minimum connection fittings.
Why is seamless coiled tubing preferred over welded alternatives?
Seamless coiled tubing eliminates the risk of impurities often found in welded lines, ensuring improved system safety, higher reliability, greater corrosion resistance, and reduced installation costs due to fewer fitting connections.
What kinds of quality testing do these stainless steel coiled tubes undergo?
The coiled tubes undergo stringent quality and safety evaluations, including flaring, bending, compression testing, 100% hardness tests, stretch tests, and comprehensive air tightness testing.
Sihe Steel
