2B titanium welding wire
Characteristics of the alloy grade 2B
|Grade of titanium alloy:||2B|
|Classification of alloy:||Titanium alloys|
|Industrial application of alloy:||production of ingots, semi-finished products, titanium wire, rolled sections; details, details of instrument engineering and aviation|
The percentage of grade 2 according To GOST 27265−87
|1 — 2||1.5 — 2.5||94.79 — 97.2||not more than 0.1||not more than 0.07||not more than 0.2||not more than 0.12||not more than 0.002||not more than 0.04||other 0.3|
Note: the base of the alloy is titanium; the interest of its contents listed in the table.
The mechanical characteristics of the alloy grade 2 (temperature 20oC).
|Assortment||Eg.||Size||%||MPa||MPa||kJ / m2||%||-|
|Wire (GOST 27265−87||)||16−20||490−635|
|-||-||mm||d5||sT||blower SB||KCU||y||Heat treatment.|
Physical characteristics of the alloy grade 2 V.
|C||R 10 9||r||a 10 6||E 10 — 5||T||l|
|The yield stress at permanent deformation (limit of proportionality), [MPa]||sT|
|Brinell hardness [MPa]||HB|
|The relative contraction [ % ]||y|
|Tensile strength (short-term) in [MPa]||blower SB|
|At break elongation in [ % ]||d5|
|The toughness of the alloy, in [ kJ / m2]||KCU|
|Physical characteristics 2V|
|The temperature at which the received data characteristics, °C||20°C|
|Coefficient of linear thermal expansion αx106 at 100 °C [1/ °C]||8,2|
|The modulus of elasticity of 1 kind, E [MPa]x10-5||1,12|
|Specific heat of alloy at 200 °C [j/(kg·deg)]||0,586|
|Coefficient thermal conductivity), l[W/(m·deg)]||Of 8.37|
|Electrical resistivity, Mhmm2/m||1,6|
|not limited||— welding is carried out without further heat treatment and without heating|
|weldability with limitations||— welding is possible when heated to a temperature of 100−120°C and further heat treatment|
|hard-welded||— to obtain a quality weld, additional operations: during welding -preheating to a temperature of 200−300°C, heat treatment after welding — annealing|
With doping increase the strength characteristics and the corrosion resistance of titanium in 2−3 times. One of the main alloying elements in industrial titanium alloys is aluminum. The most important alloying components, followed by aluminum are vanadium, molybdenum. High-temperature alloys based on the ternary system — titanium-aluminium-molybdenum and titanium-based alloys — titanium-aluminium-vanadium. Most modern titanium alloys due to well-established trends multicomponent alloying at the same time in their composition contain aluminium, vanadium, molybdenum.
Titanium and its alloys are strong, paramagnetic, quite easily welded and has some properties that play a number of technical industries an important role. Advantages of titanium alloys have great prospects of applications in such industries as engineering, which require high specific strength, heat resistance combined with high corrosion resistance. It is also important in such industries as food, chemical, aviation, shipbuilding, aerospace, high-speed transport. Extraordinary characteristics of titanium present great interest as a structural material in spacecraft.
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