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DIN17861 3.7035/Gr.2 Titanium and Titanium Alloy tubes for condensers and Heat Exchangers
Application:: Power plants, heat exchanger, condenser, chemical industry, aerospace, titanium structure parts and fasteners for modern industry, marine engineering, petrochemical, oil and gas industry etc.
Titanium tubes are typically used in commercial heat exchangers
Titanium tube widely used in electrical equipment, salt-making equipment, ocean anti-corrosion, petroleum drilling equipment, heat exchanger, condenser, heater distiller, evaporator
Titanium Grade 1 Pipes & Tubes are the gentlest titanium having the mix of specific traits like most elevated pliability, great cool formability and a superb resistance from mild to high oxidization. These Titanium Grade 1 Pipes & Tubes are showed as seamless pipes & welded pipes.
Chemical
| Material | Chemical Composition (%) | |||||||
| Fe* max | O max | N max | C max | H** max | Others | Ti | ||
| Single max | Total Max | |||||||
| Ti1 | 0.15 | 0.12 | 0.05 | 0.06 | 0.013 | 0.10 | 0.40 | Remainder |
| Ti2 | 0.20 | 0.18 | 0.05 | 0.06 | 0.013 | 0.10 | 0.40 | |
* For tubes to be used in applications in corrosive environments the Fe content should be no more than 0.15
** For the tubes less than 2mm in thickness the maximum hydrogen content is 0.015.
Physical properties
| Material designation number | Minimum 0.2% proof strength1), Rp 0.2, in N/mm2 | Minimum 1% proof strength1), Rp 1.0, in N/mm2 | Tensile strength | Minimum elongation at fracture,A5, | |
| Ti1 | 3.7025 | 180 | 200 | 290 to 410 | 30 |
| Ti2 | 3.7035 | 250 | 270 | 390 to 540 | 22 |
Outside Diameter and Wall Thickness Tolerances
The table below details the permissible Outside Diameter and Wall Thickness Tolerances according to the standard DIN 17 861.
| Manufacturing Process | Limit Deviation of Outside Diameter da | Wall thickness, s | ||
| s: da ratio | Limit Deviations | |||
| Over | Up to | |||
| Cold-Formed | +/- 0,5% but at least +/- 0,1mm | – | – | +/- 10% but at least +/- 0,2mm |
Plant
Packing