Characteristics of titanium welding wire brand VT20−2sv

Grade of titanium alloy:	VT20−2sv
Classification of alloy:	Wrought titanium alloy
Industrial application of alloy:	production of titanium welding wire

Percentage composition of the brand VT20−2sv according to GOST 27265−87

Ti	N	V	Al	Si	C	Fe	Mo	Zr	O	H	Impurities
89.86 — 94.2	to 0.04	0.5 — 1.5	3.5 — 4.5	to 0.1	to 0.05	to 0.15	0.5 — 1.5	1 — 2	to 0.12	up to 0.003	other 0.3

Note: the base of the alloy is titanium; the interest of its contents listed in the table.

The mechanical characteristics of titanium welding wire brand VT20−2sv (20°C).

Assortment	Size	Eg.	KCU	y	Heat treatment.	d5	sT	blower SB
-	mm	-	kJ / m2	%	-	%	MPa	MPa
Titanium welding wire according to GOST 27265−87						10		635−835

The physical characteristics of titanium welding wire brand VT20−2sv.

Grad	kg/m3	Ohm·m	W/(m·deg)	1/Deg	MPa	J/(kg·deg)
100			l	a 10 6		540
20	4505			8.2	1.12
T	r	R 10 9	18.85		E 10 — 5	C

Designations:

Mechanical characteristics:

The yield stress at permanent deformation (thinning 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 VT20−2
The temperature at which the received data characteristics, °C	20°C
Coefficient of linear thermal expansion αx106 at 100 °C [1/ °C]	8,2
Density [g/cm3]	4,45
The modulus of elasticity of 1 kind, E [MPa]x10-5	1,12
Specific heat of alloy at 200 °C [j/(kg·deg)]	0,587
Coefficient thermal conductivity), l[W/(m·deg)]	8
Electrical resistivity, Mhmm2/m	1,6

Quality wire

Wire produced in degassed, etched condition. Ovality welding titanium wire can not be greater than its diameter for maximum deviations. The surface of wire should be clean, bright, without reproterol, dark spots, tint. Allowed on its surface, minor tears, with dark pprotray. The surface of the welding wire may have small tears, small risks, sunsets with a depth not exceeding the dimensions given in the table.

Diameter titanium wire VT20−2 SV	The depth of the defect in the wire brand VT20−2 shall be not more
	1,0	-
1,2	-
1,4	-
1,6	-
1,8	-
2,0	0,4
2,5	0,5
3,0	0,5
3,5	0,6
4,0	0,6
5,0	0,7
6,0	0,8
7,0	0,8

Note. Valid on the surface of the wire in the presence of small individual defects in the wire diameter up to 3.0 mm deep, exceeding the limit of 0.1 mm, and the diameter over 3.0 mm — 0.2 mm.

The correction of impurities, surface defects by means of etching, Stripping to degassing of the wire. Allowed in the future, Stripping only a small unit of pollution. It also allowed the etching separate bays with subsequent degassing repeated. The total marked macrosections exceeding the depth of the defects in the metallographic process control can not be higher than 10% of the total macrosections of a controlled party.

Supply

Titanium wire winded into a coil. Its outer diameter is 900 mm. the Coils of wire in the Bay should not adhere to each other and to have bends of up to 100°. Waviness titanium wire, which occurs upon annealing of the coils, is not a sign of marriage. Mass Bay together with wire cannot be more than 50 kg. In case of drawing up of the Bay from several pieces, the length of each of them shall not be less than 10 m.

Mechanical characteristics of titanium wire must fully comply with the requirements specified in the table.

Grade titanium alloy	B elongation, % not less	Wire diameter, mm	Yield strength b MPa (kgf\mm sq)
VT20−2sv	12,0	from 2.0 to 7.0 on.	645−845 (60−80)

Marking the wire:

Each coil of wire shall have a label fixed to it showing:

-batch number and melting;

a hallmark of technical control;

-date of issue;

-names of the manufacturer and trademark:

-the legend of the wire;

the designation of the present standard.

Packing of wire.

Each coil of wire shall be tightly bound with soft wire of titanium in three places, packaged in a clean paper on top wrapped in burlap. Wrap Bay allowed using synthetic mesh, or plastic film whose thickness according to GOST 10354−82 is 100 — 200 µm without paper pre-packaging. Wire Packed in the Bay tied natural or synthetic twine in accordance with the requirements of normative-technical documentation.

Weldability:

without restrictions	— 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

Buy at best price

The popularity of products made of titanium alloy VT-20 is due to the higher quality of the products, its value, and diversity. Welding titanium wire VT20−2sv, implemented by LLC «AVEK global» is able to fully satisfy any requests. All products manufactured by the company are manufactured under the full control of all stages of the technological chain that provides 100% guarantee the quality of this metal. The company «AVEK global» has the ability to produce custom sizes to order. The advanced technological capabilities ensure the production of orders in the shortest possible time.