Characteristics of welding titanium wire brand SPT-2

Grade of titanium alloy:	SPT-2
Classification of alloy:	Wrought titanium alloy
Industrial application of alloy:	production of titanium welding wire

Percentage brand SPT-2 according to GOST 27265−87

N	H	O	V	Al	Ti	Si	C	Fe	Zr	Impurities
to 0.04	up to 0.003	to 0.12	2.5 — 3.5	3.5 — 4.5	89.36 — 92.7	to 0.1	to 0.05	to 0.15	1 — 2	other 0.3

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

Mechanical characteristics of welding titanium wire SPT brand-2sv (20°C).

Assortment	Size	Eg.	KCU		Heat treatment.	d5	sT	blower SB
-	mm	-	kJ / m2	%	-	%	MPa	MPa
Titanium welding wire according to GOST 27265−87						13		645−845

The physical characteristics of welding titanium wire SPT brand-2sv.

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

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

Production

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 SPT-2sv	The depth of the defect in the wire grade SPT-2sv shall be not more
	1,0	-
1,2	-
1,4	-
1,6	0,4
1,8	0,4
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

Quality

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. Correction of contamination of surface defects is performed by way of etching, Stripping down to the 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.

Physical characteristics of the SPT-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]	4,5
The modulus of elasticity of 1 of the kind E [MPa]x10-5	1,12
Elongation at break d5 %	13%
Limit short-term strength sin[MPa]	645−845
Electrical resistivity, Mhmm2/m	1,6

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 have curves of more than 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)
SPT-2sv	13,0	from 1.6 to 7.0 incl.	645−845 (66−86)

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:

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

Buy at best price

The popularity of this titanium alloy due to the higher quality of the products, its value, and diversity. Welding titanium wire SPT-2sv, implemented by LLC «AVEK global» can satisfy any requests. All products are made by our company under full control at all stages of the process chain that ensures 100 percent quality guarantee. The company «AVEK global» has the ability to produce custom sizes to order. Technological capabilities of each stage of production gives the possibility of rapid completion of individual orders in the absence of the required type of product in the basic version.