ASTM A213 TP316L Stainless Steel Seamless Coiled Tube Heating Tubing in Coil
ASTM A213 TP316L Stainless Steel Coil Tube Heat Exchanger Tubing in Coil
Why Coil a Heating Tube?
Coiling a tube dramatically increases its effective heat transfer surface area within a compact footprint. This creates a more efficient, intense, and localized heat exchange compared to a straight tube of the same length.
ASTM A213 TP316L Stainless Steel Tube Coiled Tube Chemical Composition
| Grade | UNS Designation | C | M | P | S | Si | Ch | Ni | Mo | N | Nb | Ti | Other |
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | ... | ... | ... | ... |
ASTM A213 TP316L Stainless Steel Tube Coiled Tube Mechanical properties
|
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
|
ASTM A213 TP316L Stainless Steel Tube Coiled Tube Physical Properties
|
Grade
|
Density
(kg/m3) |
Elastic Modulus
(GPa) |
Mean Co-eff of Thermal Expansion (m/m/0C)
|
Thermal Conductivity
(W/m.K) |
Specific Heat 0-1000C
(J/kg.K) |
Elec Resistivity
(nΩ.m) |
|||
|
0-1000C
|
0-3150C
|
0-5380C
|
At 1000C
|
At 5000C
|
|||||
|
316/L
|
8000 |
193
|
15.9
|
16.2
|
17.5
|
16.3
|
21.5
|
500 |
740 |
Key Advantages of Coiled Tube Heaters
-
High Efficiency & Compact Design: Maximum surface area in minimal space leads to faster, more efficient heat transfer.
-
Structural Integrity & Flexibility: The coil form provides mechanical strength against thermal expansion and vibration, while remaining flexible for installation.
-
Uniform Heating & Turbulent Flow: The coiled path promotes fluid turbulence, improving heat transfer and reducing temperature gradients (for fluid-based systems).
-
Reduced Leak Points: A single, continuous coil has far fewer welds and connections than a serpentine arrangement of straight tubes, enhancing reliability.
Application
-
Heat exchangers, condensers, and boiler tubes.
-
Chemical processing, petrochemical, and refinery equipment.
-
Pharmaceutical and food-processing systems.
-
Power generation (e.g., superheaters, rebollers).
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