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titanium
Rev. 01/2017
Dedacciai K-19 titanium tubing constitute a large family of high performance products.
› ›
titanium2
they are manufactured in ti-3al-2.5V titanium grade, commonly named GR.9, ti-6al-4V, commonly named Gr.5, and Gr.2 titanium grade, in accordance with aStm B338 rules.Grade 9 is preferred for the most structural stressed tubing of the frame, meanwhile grade 2 grade is used where ductility and workability are the more important aspect.
all the tubing are seamless, cold drawn and stress relieved (CWSR).
to obtain the best results from the use of this class of products, please look carefully at the drawings, and read the advices at the end of this catalogue.
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TITANIUM TOP TUBING
620.0
Ø31.7Ø31.7 0.9
50.0 320.0
0.7
620.0
100.0 50.0 100.0
0.9
0.9Ø34.9 Ø34.9
UseWeightTi Gr.9 Road - Cyclocross - MTB
cod : MTO349T103
240 g
245 gUseWeight
Ti Gr.9 Road
cod : MTO317T101
Grade
Grade
Titanium top tubing
titanium4
TITANIUM DOWN TUBING
cod : MTQ480T103
UseWeightTi Gr.9 Road - Cyclocross - MTB
cod : MTQ480T102
UseWeightTi Gr.9 Road - Cyclocross - MTB
Road - Cyclocross - MTBTi Gr.9Weight Use
cod : MTQ480T101
Road - Cyclocross - MTB
cod : MTQ440T102
Ti Gr.9Weight Use
UseWeightTi Gr.9
cod : MTQ440T101
Road - Cyclocross - MTB
Road
cod : MTQ415T101
Ti Gr.9Weight Use
UseWeightRoad - Cyclocross
cod : MTQ415T105
Ti Gr.9
cod : MTQ381T101
UseWeightTi Gr.9 Road - Cyclocross330 g
320 g
320 g
430 g
430g
440 g
440 g
440 g
0.7
100.050.0350.050.0100.0
0.7
100.050.0350.0100.0 50.0
0.9 Ø38.1Ø38.1
650.0
0.9 Ø41.5Ø41.5
650.0
0.9
48
35
0. 9
0.9
650.047
36
Ø44 Ø44
750.0
0.9
53
34
0.9 Ø44
750.0
670.0
0.9Ø48 Ø48
35
59.5
Ø48
670.0
670.0
35
59.5 35
59.5
Grade
Grade
Grade
Grade
Grade
Grade
Grade
Grade
Titanium down tubing
5
0.9
6060160
60280
0.85
Ø35
0.850.
7Ø35.3
Ø35
100
Ø31
.7
606060280660
0.85
Ø35
0.7
0.85Ø35.3
Ø35
100
Ø31
.7
80.0
Ø31
.7Ø
27.4
Ø31.7
620
Aluminium sleeveto be glued
Aluminium sleeveto be glued
Aluminium sleeveto be glued
non tagliare don't cut
non tagliare don't cut
TITANIUM SEAT TUBING
Ti Gr.9Weight Use285 g MTB
cod : MTV350T103
cod : MTV317T101
245 gUseWeight
Ti Gr.9 Road
cod : MTV350T102
285 gUseWeight
Ti Gr.9 Road - Cyclocross - MTB
Grade
Grade
Grade
Titanium seat tubing
titanium6
Titanium chain stay
Ø22.2Ø22.2Ø16
415.0150.0 25.0
0.9
185.0
19.0
24.5
19.0
24.5
Ø16
Ø2429
.019.019.0
29.0
0.9
0.7
420.0
165.0170.0 25.0
Ø24
170.0
18.5
28.5
0.9
450.0
28.5
18.5Ø16
Ø16 0.9
200335
28.5
18.5
R220
R220 12°
100.0
SIDE VIEW
335
R220
0.9
18.5
28.5
Ø16
TOP VIEW
TOP VIEW
SIDE VIEW
SIDE VIEW
TOP VIEW
cod : MPO240T104
cod : MPO240T103
MTB 29"
MTB 29"
UseWeightTi Gr.2 145 g
UseWeightRoad
cod : MPO222T101
Ti Gr.9 125 g
UseWeightRoad
cod : MPO240T105
145 gTi Gr.2
120 g
cod : MPO240T101
UseWeightRoadTi Gr.2
145 gTi Gr.2Weight Use
cod : MPO240T106
CyclocrossUseWeight
Ti Gr.2 145 g
5°
15°1 5°6°
Ø16 0.9
200335
28.5
18.5
TITANIUM CHAIN STAY
175.0
Grade
Grade
Grade
Grade
Grade
Grade
7
TOP VIEW
TOP VIEW
TOP VIEW
TOP VIEW
SIDE VIEW
Cyclocross
cod : MPV160T106
UseWeightTi Gr.2 95 g
95 gTi Gr.2Weight Use
cod :
Gravel - MTB 29"
MTB 29"
cod : MPV160T104
UseWeightTi Gr.2 95 g
UseWeightRoadTi Gr.2 95 g
cod : MPV160T101
UseWeightcod : MPV160T103
Ti Gr.9 105 g Road
cod : MPV160T102
UseWeightRoadTi Gr.2 95 g
Ø16 Ø16
560.0
0.9
Ø16
bend centerØ16
265.080.0
155°R80.0
265.0
bend center
0 .8
20°R150
8°
21°370.0
220.0
0.75
R220
Ø16
Ø16
12°
R150
205.0335.0
8°
R230
0.75
Ø16
Ø16
375.075.0
R150R150
Ø16Ø160.
75560.0
Ø16Ø16
0.75
TITANIUM SEAT STAY
6°
6°
MPV160T105
Grade
Grade
Grade
Grade
Grade
Grade
Titanium seat stay
titanium8
Gravel - MTB 29"
cod : MPV190T103
110 gUseWeight
Ti Gr.2
Cyclocross110 g
cod : MPV190T106
Ti Gr.2Weight Use
Weight Usecod : MPV190T101
Ti Gr.2 110 g Road
Ø14 Ø19
150
560.0
0.7
0.7
Ø19
12°
R150
205.0335.0
8°
R230
Ø14
0.7
Ø14
R150
8°
21°
370.0220.0
R220
Ø19.0
TITANIUM SEAT STAY
Grade
Grade
Grade
Titanium seat stay
9
Ti Gr.5
Ti Gr.9
Ø6.2
Ø8
60.5
1313
Ø10
1.25
Ø56
255
2060
Ø45
Ø56
Ø4545°
6
Ø42
Ø37
3
2
Ø56
Ø52
Ø47
45°
1.25
Alloy cupremove anodizationbefore gluing
Alloy cupremove anodizationbefore gluing
5.5 7.39.8
Ø10 27.1
33.5
SIDE VIEW FRONT VIEW
68.5
BSA THREAT
2020
Ø40
95 g
cod : MBS4008KZ
Weight UseRoad - Cyclocross - MTB
Road - Cyclocross - MTBUseWeight
cod : FCRIBDTIT
70 g
Road14 g
cod : PONTFRTIT
UseWeight
Weight UseRoad - Cyclocross - MTB
cod : MTSK19T56
260 gTi Gr.2
UseWeightTi Gr.2 245 g
cod : MTSK19T56WOC
Road - Cyclocross - MTB
TITANIUM SPARE PARTS
Ø45
Ti Gr.5
Grade
Grade
Grade
Grade
Grade
Titanium spare parts
titanium10
11
• ti Balance • al 2.5-3.5 • V 2.0-3.0• n < 0.02• C < 0.05• H < 0.015• Fe < 0.03• O < 0.12• all others < 0.4 (total) / < 0.1 (each)
Typical Mechanical properties of Gr.9 tubing:
Butted tubing:
• ultimate strength > 850 mpa (Best value 930 mpa) • Yield strength 790 mpa• Elongation % > 35 %
Plain gauge tubing:
• ultimate strength 680 mpa • Yield strength 620 mpa• Elongation % > 35 %
Structural analysis data:
• Density 4.51 g/cm3• modulus of Elasticity 103 GPa• Yield strength 620 mPa
Chemical composition of Gr.9 (Ti-3Al-2.5V) titanium grade %
• ti Balance • al 5.5-6.75 • V 3.5-4.5• n < 0.05• C < 0.10• H < 0.0125• Fe < 0.30• O < 0.20• all others < 0.4 (total) / < 0.1 (each)
Typical Mechanical properties of Gr.5 tubing:
Plain gauge tubing / plates:
• ultimate strength 900 mpa • Yield strength 830 mpa• Elongation % > 19 %
Structural analysis data:
• Density 4.43 g/cm3• modulus of Elasticity 120 GPa• Yield strength 830 mPa
Chemical composition of Gr.5 (Ti-6Al-4V) titanium grade %
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titanium12
• ti Balance • n < 0.03• C < 0.10• H < 0.015• Fe < 0.30• O < 0.25• all others < 0.4 (total) / < 0.1 (each)
Typical mechanical properties of Gr.2 tubing:
Butted tubing:
• ultimate strength > 620 mpa (Best value 710 mpa) • Yield strength > 490 mpa• Elongation % > 30
Plain gauge tubing:
• ultimate strength > 500 mpa • Yield strength 375 min / 400 max mpa• Elongation % > 35
Structural analysis data:
• Density 4.43 g/cm3• modulus of Elasticity 103 GPa• Yield strength 375 mPa
Chemical composition of Gr.2 (Ti) titanium grade%
13
› ›
all the Dedacciai tubes and tube sets are designed for assembling frames based on current uCi geometry.
in the choice of tubing for manufacturing a frames, please keep into account the following safety rules :
• Verify that for the selected geometry you will save a butt length longer than the thermal affected zone, and in any case longer that the tube diameter.
• if the butt length of down and top tubing butts are not symmetrical, pay attention in the tube orientation : at the head tube joint the tube must be only mitred, and not cutted.
• Depending on geometry, it is always better to keep top and down tubing spaced on head tube. Over imposed tubing geometries are less safe.
• Road recommended tubing can’t be used for off-road frames.
• Fixing point and welding cordons closure points can give origin to fatigue cracks, realize them in the less stressed areas of the joints.
• it is recommended to completely weld the seat
tube on bottom bracket, and then all other tubing.
• top tube and seat stays must be approximately aligned at the seat tube joint. if you want to weld the seat stays below the top tube center line, please use the “low geometry (LG)” seat tubing (not available in the titanium set)
• Do not grind and/or polish the welding cordons.
the risk of reducing the tube wall thickness is too high!
Assembling of the tubingGeometrical features
titanium14
Before welding the tubing, carefully clean them and remove dirty and grease inside and outside of the tube in the area to be jointed.the surfaces must be smooth and without notches.after mechanical cleaning, use acetone or mEK.Do not use chlorinated solvents. the suggested welding wire is Gr.5, (aWS classification ERti-5)
also the welding wire surface state is very important: stock it in clean areas, clean it before use and handle tubing and welding wire with gloves.
During the welding process any area that will exceed 400 °C must be shield from atmosphere contamination. Localized inert gas shielding or vacuum chamber is needed.
Welding and post-welding advices
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Dedacciai Srl - Via Leonardo da Vinci, 19 - 26010 Campagnola Cremasca (CR) - Italy - Ph. +39 0373 74 499 - www.dedacciai.com