SPT-2 / СПТ-2 & TS6 / ТС6 Titanium Alloys
Russian Metals supplies SPT-2 / СПТ-2 and TS6 / ТС6 Titanium Alloys for welding wire, filler wire, high-strength sheet, cavitation-resistant components, machined parts and technical engineering applications.
SPT-2 is mainly used as titanium welding wire and filler wire, while TS6 is a high-strength pseudo-beta titanium alloy used for hardened sheet and cavitation-resistant products.
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Russian Grade Name and Product Name
| Product Name | Russian Grade | Russian Product Name | Product Type |
|---|---|---|---|
| SPT-2 Titanium Alloy | СПТ-2 | Титановый сплав СПТ-2 | Titanium wrought alloy wire |
| SPT-2 Titanium Welding Wire | СПТ-2 | Сварочная проволока СПТ-2 | Titanium welding wire / filler wire |
| SPT-2 Titanium Filler Rod | СПТ-2 | Сварочная проволока СПТ-2 | Welding rod and filler rod |
| TS6 Titanium Alloy | ТС6 | Титановый сплав ТС6 | High-strength titanium wrought alloy |
| TS6 Titanium Sheet | ТС6 | Титановый сплав ТС6 | Hardened and aged titanium sheet |
Material Overview
SPT-2 / СПТ-2 and TS6 / ТС6 are Russian titanium alloy grades used where strength, corrosion resistance, controlled chemistry and technical performance are required.
SPT-2 is supplied for titanium welding wire, titanium filler wire, TIG welding, argon welding, plasma welding, metal cutting and controlled titanium joining applications. TS6 is supplied for high-strength sheet, hardened sheet, aged sheet, cavitation-resistant products, fluid-exposed components, ultrasonic equipment and precision engineering parts.
Grade Classification
| Grade | Russian Name | Classification | Main Performance Focus |
|---|---|---|---|
| SPT-2 | СПТ-2 | Titanium wrought alloy wire | Welding wire, filler wire and titanium joining |
| TS6 | ТС6 | Titanium wrought alloy | High-strength pseudo-beta titanium alloy |
| TS6 Sheet | ТС6 | Hardened and aged titanium sheet | Cavitation-resistant and high-strength components |
SPT-2 / СПТ-2 Titanium Welding Wire Overview
SPT-2 / СПТ-2 Titanium Welding Wire is a Russian titanium alloy wire grade mainly used for titanium welding, filler wire, filler rod and controlled titanium fabrication.
It is suitable for TIG welding, argon welding, plasma welding, welding rod applications, metal cutting and titanium alloy welding consumables where clean surface condition, controlled chemistry and stable wire properties are required.
TS6 / ТС6 Titanium Alloy Overview
TS6 / ТС6 Titanium Alloy is a high-strength pseudo-beta titanium alloy used for cavitation-resistant products, high-strength titanium sheet, hardened and aged sheet, industrial components, fluid-exposed parts, machinery parts and engineered products.
TS6 is selected where very high tensile strength, high yield strength, hardness, cavitation resistance and technical performance are required after hardening and aging.
Difference Between SPT-2 and TS6
| Point | SPT-2 / СПТ-2 | TS6 / ТС6 |
|---|---|---|
| Main Product Focus | Titanium welding wire and filler wire | High-strength titanium sheet and technical components |
| Alloy System | Al-Zr-V titanium alloy wire | Cr-Mo-V-Al pseudo-beta titanium alloy |
| Main Use | Welding, filler wire, TIG welding, argon welding | Cavitation-resistant products and hardened sheet parts |
| Product Form | Wire, filler wire, straight wire, coil wire, welding rod | Sheet, plate, bar, rod, billet, forging, machined blank |
| Strength Focus | Wire handling and weld performance | Very high tensile strength and hardness |
| Selection Method | Based on welding process and base metal | Based on strength, hardness, cavitation and service requirement |
Available Product Forms
| Product Form | Available Grade | Common Use |
|---|---|---|
| Welding Wire | SPT-2 / СПТ-2 | Titanium welding and fabrication |
| Filler Wire | SPT-2 / СПТ-2 | TIG welding, argon welding and filler metal |
| Straight Wire | SPT-2 / СПТ-2 | Manual welding and cut-length filler rod |
| Coil Wire | SPT-2 / СПТ-2 | Industrial welding and wire feeding |
| Filler Rod | SPT-2 / СПТ-2 | Manual welding and filler rod applications |
| Sheet | TS6 / ТС6 | Hardened and aged high-strength sheet |
| Plate | TS6 / ТС6 | Machined parts and technical components |
| Bar | TS6 / ТС6 | Turning, shafts, pins and engineered parts |
| Rod | TS6 / ТС6 | Precision machining and component production |
| Billet | TS6 / ТС6 | Forging, rolling and machining |
| Forging | TS6 / ТС6 | Cavitation-resistant and high-strength parts |
| Machined Blank | TS6 / ТС6 | CNC-ready precision engineering parts |
SPT-2 / СПТ-2 Welding Wire Section
SPT-2 titanium welding wire is used for titanium joining, titanium fabrication, TIG welding, argon welding, plasma welding and metal cutting applications.
Russian Metals supplies SPT-2 / СПТ-2 wire with controlled chemistry, clean surface condition and material certificate support for welding projects that require reliable titanium filler material.
SPT-2 / СПТ-2 Filler Wire Section
SPT-2 filler wire is used in controlled titanium joining applications where the filler metal must match the welding process, base material and required joint performance.
It can be supplied for TIG welding, argon welding, titanium sheet welding, titanium plate welding and precision fabrication where clean wire handling is important.
SPT-2 / СПТ-2 Straight Wire and Cut-Length Wire
SPT-2 straight wire and cut-length wire are used for manual welding and filler rod applications. Cut-length pieces can be prepared according to project requirement, wire diameter and packing preference.
Straight wire is useful where stable handling, clean surface quality and consistent diameter are required during manual welding.
SPT-2 / СПТ-2 Coil Wire
SPT-2 coil wire is used for industrial welding, wire feeding and storage. Coil packing helps support larger welding operations where continuous wire handling is required.
Coil wire can be supplied with clean, etched, degassed or pickled surface condition depending on wire requirement and welding process.
SPT-2 / СПТ-2 Wire Diameter Range
| Wire Product | Common Diameter Details |
|---|---|
| SPT-2 Welding Wire | 1.6 mm to 7.0 mm where applicable |
| SPT-2 Filler Wire | Straight length, coil or spool depending on requirement |
| SPT-2 Filler Rod | Cut-length rod form for manual welding |
| SPT-2 Titanium Wire | Diameter and tolerance according to stock and standard |
Final diameter, tolerance, packing and surface condition should be confirmed by stock availability, welding wire standard and project requirement.
TS6 / ТС6 Titanium Sheet Section
TS6 titanium sheet is used in hardened and aged conditions for high-strength sheet parts, cavitation-resistant products, fluid-exposed components, ultrasonic equipment and precision engineering applications.
TS6 sheet is selected where high tensile strength, high yield strength and strong hardness values are required after heat treatment.
TS6 / ТС6 Titanium Plate Section
TS6 titanium plate is used for machined parts, high-strength components, technical applications and corrosion-resistant components where pseudo-beta titanium alloy performance is required.
Plate can be supplied as cut-to-size material, machined blank or project-based plate form depending on final component requirement.
TS6 / ТС6 Titanium Bar Section
TS6 titanium bar is used for machining, turning, shafts, pins, machinery parts and engineered components where high-strength titanium alloy performance is required.
Bar supply can include peeled, ground, polished, machined or project-specific finish based on dimensional and surface requirements.
TS6 / ТС6 Titanium Rod Section
TS6 titanium rod is suitable for precision machining, high-strength component production, CNC parts and technical engineering products.
Rod dimensions, tolerances and surface condition can be selected according to machining requirement and final application.
TS6 / ТС6 Titanium Billet Section
TS6 titanium billet is used for forging, rolling, machining and custom manufacturing. Billets can be supplied in project-based diameter, length and cut-size requirements.
Billet material is suitable for further conversion into high-strength parts, machined blanks and engineered components.
TS6 / ТС6 Titanium Forging Section
TS6 titanium forgings are used for high-strength and cavitation-resistant parts where load, hardness and fluid-exposed service conditions are important.
Forging supply can include rough forged shapes, machined blanks or drawing-based components depending on customer specification.
Machined Blank Section
Russian Metals supplies TS6 / ТС6 machined blanks for CNC-ready parts, precision engineering applications, machinery parts, ultrasonic equipment and cavitation-resistant components.
Machined blanks can be supplied with dimensional inspection, surface finish control and material certificate documentation.
Surface Condition and Finish Options
| Product Type | Surface / Finish Options |
|---|---|
| SPT-2 Welding Wire | Bright, clean, pickled, etched, degassed |
| SPT-2 Filler Wire | Clean, etched, degassed, polished where required |
| SPT-2 Straight Wire | Bright, clean, cut-length or project-specific finish |
| SPT-2 Coil Wire | Clean coil packing, etched or degassed condition |
| TS6 Sheet | Bright, pickled, polished, ground, clean finish |
| TS6 Plate | Black, pickled, machined, ground, sand-blasted |
| TS6 Bar and Rod | Black, bright, peeled, polished, ground, machined |
| TS6 Billet | Black, peeled, machined or project-specific finish |
| TS6 Forging | Black, machined, ground, shot-blasted |
| Machined Blank | Machined, ground, polished or custom finish |
Dimensional Range Overview
| Product Form | Common Dimensional Details |
|---|---|
| Welding Wire | 1.6 mm to 7.0 mm where applicable |
| Filler Wire | Straight, coil, spool or cut-length form |
| Filler Rod | Cut-length diameter and length as per welding requirement |
| Sheet | Thickness, width and length as per project requirement |
| Plate | Medium thickness or project-specific cut-to-size plate |
| Bar | Diameter and length according to machining requirement |
| Rod | Precision diameter and cut-length options |
| Billet | Diameter, length and cut size as per forging or machining need |
| Forging | Drawing-based forged shape, section and weight |
| Machined Blank | Custom size, tolerance and finish based on drawing |
Chemical Composition Overview
SPT-2 / СПТ-2 and TS6 / ТС6 have different alloying systems. SPT-2 uses aluminium, zirconium and vanadium chemistry for titanium welding wire applications. TS6 uses chromium, molybdenum, vanadium and aluminium chemistry for high-strength pseudo-beta titanium alloy performance.
SPT-2 / СПТ-2 Chemical Composition
| Element | Typical Range / Limit |
|---|---|
| Titanium | Balance |
| Aluminium | 3.5–4.5% |
| Vanadium | 2.5–3.5% |
| Zirconium | 1.0–2.0% |
| Iron | Max 0.15% |
| Carbon | Max 0.05% |
| Silicon | Max 0.10% |
| Nitrogen | Max 0.04% |
| Oxygen | Max 0.12% |
| Hydrogen | Max 0.003% |
| Other Impurities | Max 0.30% |
TS6 / ТС6 Chemical Composition
| Element | Typical Range / Limit |
|---|---|
| Titanium | Balance, approx. 75–77% |
| Chromium | 10.0–11.0% |
| Molybdenum | 4.0–5.0% |
| Vanadium | Approx. 6.0% |
| Aluminium | Approx. 3.0% |
| Iron | Controlled by standard / MTC |
| Carbon | Controlled by standard / MTC |
| Silicon | Controlled by standard / MTC |
| Nitrogen | Controlled by standard / MTC |
| Oxygen | Controlled by standard / MTC |
| Hydrogen | Controlled by standard / MTC |
| Other Impurities | As per applicable specification |
Titanium Balance Note
Titanium is the base element in SPT-2 / СПТ-2 and TS6 / ТС6. The remaining chemistry is controlled through alloying elements and impurity limits to support welding performance, strength, hardness and technical service behavior.
Role of Alloying Elements
Aluminium
Aluminium improves strength, stability and lightweight performance in titanium alloys. It supports useful mechanical behavior in both SPT-2 and TS6 titanium grades.
Vanadium in SPT-2 and TS6
Vanadium supports strength and phase stability in titanium alloy systems. In SPT-2, it contributes to wire alloy performance, while in TS6 it supports high-strength pseudo-beta alloy behavior.
Zirconium in SPT-2
Zirconium supports alloy stability and titanium wire performance. It helps maintain controlled wire chemistry for welding and filler wire applications.
Chromium in TS6
Chromium supports strengthening and beta-phase stabilization in TS6 titanium alloy. It contributes to the pseudo-beta alloy structure and high-strength sheet behavior.
Molybdenum in TS6
Molybdenum improves hardenability, strength and pseudo-beta alloy behavior. It supports TS6 performance after quenching and aging.
Controlled Impurities
| Controlled Element | Importance |
|---|---|
| Iron | Controlled for chemistry consistency and mechanical performance |
| Carbon | Limited to maintain titanium alloy quality |
| Silicon | Controlled for stable alloy behavior |
| Nitrogen | Controlled because it affects titanium alloy properties |
| Oxygen | Controlled for strength, ductility and wire performance |
| Hydrogen | Controlled because hydrogen affects titanium welding quality |
| Other Impurities | Limited for MTC compliance and grade consistency |
Mechanical Properties
| Grade | Product Form / Condition | Tensile Strength | Yield Strength | Elongation | Hardness / Notes |
|---|---|---|---|---|---|
| SPT-2 / СПТ-2 | Welding wire | 645–845 MPa | As per MTC | Approx. 13% | Wire condition depends on diameter and finish |
| TS6 / ТС6 | Sheet, hardening and aging | 1580–1635 MPa | 1520–1590 MPa | 5.5–6% | HB 341–444 |
| TS6 / ТС6 | Plate / bar / forging | As per product form and MTC | As per MTC | As per MTC | As per supplied condition |
| TS6 / ТС6 | Machined blank | As per base product form | As per MTC | As per MTC | As per heat treatment |
SPT-2 / СПТ-2 Wire Mechanical Properties
SPT-2 titanium welding wire is commonly referenced with tensile strength around 645–845 MPa and elongation around 13%. These properties support wire handling, welding performance and filler rod applications.
Final properties should be confirmed by MTC, wire diameter, surface condition, heat number and applicable welding wire standard.
TS6 / ТС6 Sheet Mechanical Properties
TS6 titanium sheet after hardening and aging is known for very high strength. Typical reference properties include tensile strength around 1580–1635 MPa, yield strength around 1520–1590 MPa and elongation around 5.5–6%.
This makes TS6 suitable for high-strength sheet parts, cavitation-resistant components and precision engineering products where hardness and strength are critical.
Hardness
TS6 / ТС6 sheet after quenching and aging is commonly referenced with Brinell hardness around HB 341–444. Hardness is important for cavitation-resistant products, fluid-exposed components, ultrasonic equipment and high-strength engineered parts.
SPT-2 hardness is generally controlled through wire processing, surface condition and final wire state.
Density
SPT-2 and TS6 provide titanium’s lightweight advantage compared with many steel alloys. Their high strength-to-weight ratio supports welding applications, precision engineering, machinery parts and corrosion-resistant components.
Final density values should be confirmed from grade-specific technical data and material certificate where required.
Heat Treatment
TS6 / ТС6 is strongly connected with heat treatment, especially hardening and aging. Heat treatment is selected to achieve high tensile strength, high yield strength and increased hardness in sheet or technical component form.
SPT-2 wire condition depends on drawing, degassing, etching, cleaning and final wire processing rather than the same hardening route used for TS6 sheet.
Quenching and Aging
Quenching and aging are used for TS6 / ТС6 to develop high-strength sheet properties. This process supports pseudo-beta titanium alloy performance, Brinell hardness and cavitation-resistant behavior.
Final heat treatment should be selected according to product form, thickness, mechanical property targets and project specification.
Weldability
SPT-2 / СПТ-2 is mainly supplied for welding wire and filler wire applications. It can be used for titanium welding, TIG welding, argon welding, plasma welding, metal cutting and controlled titanium joining where the wire chemistry matches the welding requirement.
Titanium welding should use clean wire, clean joint preparation, inert gas shielding and protection from oil, dust, moisture and surface contamination.
Cavitation Resistance
TS6 / ТС6 is used for cavitation-resistant products and fluid-exposed components where high strength, hardness and surface durability are important.
It can be used in ultrasonic equipment, machinery parts, technical engineering products and industrial components exposed to fluid movement, vibration or cavitation-type service conditions.
Machinability
SPT-2 wire and TS6 alloy forms can be processed according to product type. TS6 sheet, plate, bar, rod, billet, forging and machined blank can be processed by cutting, turning, milling, drilling, grinding and CNC machining.
Proper titanium tooling, coolant, cutting speed and heat control are recommended for reliable machining and finished part performance.
Formability and Fabrication
SPT-2 wire can be drawn, straightened, coiled, spooled, cut to length and prepared as welding rod or filler wire.
TS6 sheet and billet products can be processed into technical blanks, machined components and engineered products depending on heat treatment, dimensional requirement and final application.
Applications of SPT-2 / СПТ-2 and TS6 / ТС6 Titanium Alloys
| Application | Suitable Grade |
|---|---|
| Titanium welding wire | SPT-2 / СПТ-2 |
| Titanium filler wire | SPT-2 / СПТ-2 |
| TIG welding and argon welding | SPT-2 / СПТ-2 |
| Plasma welding and metal cutting | SPT-2 / СПТ-2 |
| Welded assemblies | SPT-2 / СПТ-2 |
| High-strength sheet parts | TS6 / ТС6 |
| Hardened and aged sheet | TS6 / ТС6 |
| Cavitation-resistant products | TS6 / ТС6 |
| Fluid-exposed components | TS6 / ТС6 |
| Ultrasonic equipment | TS6 / ТС6 |
| Machinery parts | TS6 / ТС6 |
| Machined parts | TS6 / ТС6 |
| Technical engineering products | TS6 / ТС6 |
Testing, Certification and Packaging
Russian Metals supplies SPT-2 / СПТ-2 and TS6 / ТС6 titanium materials with inspection, documentation and export packing support.
| Testing / Certification Point | Details |
|---|---|
| Chemical Analysis | Confirms Ti, Al, Zr, V, Cr, Mo and controlled impurity limits |
| Tensile Testing | Available for wire, sheet and applicable product forms |
| Elongation Testing | Confirms ductility and product condition |
| Hardness Testing | Important for TS6 sheet after hardening and aging |
| Dimensional Inspection | Wire diameter, sheet thickness, bar diameter and length checks |
| Surface Inspection | Confirms finish, cleanliness and visible surface quality |
| Wire Cleanliness Inspection | Important for SPT-2 welding wire and filler wire |
| Material Certificate | MTC with grade, heat number and chemistry |
| Heat Number | Heat-level material traceability |
| Batch Traceability | Batch identification from supply to packing |
| Grade Marking | SPT-2 / СПТ-2 or TS6 / ТС6 marking where applicable |
| Coil Packing | Available for SPT-2 coil wire |
| Wire Spool Packing | Available for welding wire and filler wire |
| Export Packaging | Wooden box, bundle packing, sealed wire packing or project-specific packing |
Grade Comparison Table
| Grade | Russian Name | Alloy System | Product Focus | Key Benefit | Typical Application |
|---|---|---|---|---|---|
| SPT-2 | СПТ-2 | Al-Zr-V titanium alloy wire | Welding wire and filler wire | Controlled wire chemistry and weld performance | TIG welding, argon welding, filler rod |
| TS6 | ТС6 | Cr-Mo-V-Al pseudo-beta titanium alloy | Sheet, plate, bar, billet, forging | High strength, hardness and cavitation resistance | Hardened sheet and fluid-exposed components |
Equivalent Grade Note
SPT-2 / СПТ-2 and TS6 / ТС6 should not be assumed to have direct equivalent grades unless the material certificate and project specification confirm the match.
Final material selection should be based on Russian grade name, chemical composition, mechanical properties, product form, welding requirement, heat treatment and MTC.
FAQs
What is SPT-2 titanium alloy?
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SPT-2 / СПТ-2 is a Russian titanium wrought alloy grade mainly supplied as titanium welding wire, titanium filler wire and filler rod material.
What is the Russian name of SPT-2?
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The Russian grade name of SPT-2 is СПТ-2. It may appear as Титановый сплав СПТ-2 or Сварочная проволока СПТ-2 depending on product form.
Is SPT-2 used as titanium welding wire?
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Yes, SPT-2 / СПТ-2 is used as titanium welding wire and titanium filler wire for TIG welding, argon welding, plasma welding and titanium fabrication.
What is the chemical composition of SPT-2?
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SPT-2 / СПТ-2 contains titanium balance with approximately 3.5–4.5% aluminium, 2.5–3.5% vanadium, 1.0–2.0% zirconium and controlled impurity limits.
What is the wire diameter range of SPT-2?
▾
SPT-2 titanium welding wire is commonly referenced in diameters from 1.6 mm to 7.0 mm, depending on standard, stock condition and project requirement.
What are the mechanical properties of SPT-2 welding wire?
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SPT-2 welding wire is commonly referenced with tensile strength around 645–845 MPa and elongation around 13%.
What is TS6 titanium alloy?
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TS6 / ТС6 is a high-strength pseudo-beta Russian titanium wrought alloy used for hardened sheet, cavitation-resistant products, fluid-exposed components and technical engineering parts.
What is the Russian name of TS6?
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The Russian grade name of TS6 is ТС6, and the Russian product name is Титановый сплав ТС6.
Is TS6 a pseudo-beta titanium alloy?
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Yes, TS6 / ТС6 is commonly described as a pseudo-beta titanium alloy with high-strength performance after hardening and aging.
What is TS6 titanium alloy used for?
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TS6 / ТС6 is used for cavitation-resistant products, high-strength sheet parts, hardened and aged sheet, ultrasonic equipment, fluid-exposed components, machinery parts and precision engineering products.
What is the chemical composition of TS6?
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TS6 / ТС6 contains titanium balance with chromium, molybdenum, vanadium and aluminium as main alloying elements, plus controlled impurity limits.
What are the mechanical properties of TS6?
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TS6 sheet after hardening and aging is commonly referenced with tensile strength around 1580–1635 MPa, yield strength around 1520–1590 MPa, elongation around 5.5–6% and Brinell hardness around HB 341–444.
What is the difference between SPT-2 and TS6?
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SPT-2 / СПТ-2 is mainly a titanium welding wire and filler wire grade, while TS6 / ТС6 is a high-strength pseudo-beta titanium alloy used for hardened sheet and cavitation-resistant components.
Does SPT-2 have an equivalent grade?
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No direct equivalent grade should be assumed for SPT-2 / СПТ-2 unless the MTC and project specification confirm it.
Does TS6 have an equivalent grade?
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No direct equivalent grade should be assumed for TS6 / ТС6 unless the material certificate and technical specification confirm the match.
What product forms are available in SPT-2 / TS6?
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Russian Metals supplies SPT-2 / СПТ-2 in welding wire, filler wire, straight wire, coil wire and filler rod forms, while TS6 / ТС6 is available in sheet, plate, bar, rod, billet, forging and machined blank forms.
SPT-2 / СПТ-2 & TS6 / ТС6s Titanium Alloys with MTC and Export Support
Send the required alloy designation, product form, dimensions, quantity, standard, delivery condition, testing, certificate requirements and destination for a technically correct quotation.
SPT-2 / СПТ-2 & TS6 / ТС6s supply support.
Chemical, mechanical, heat-treatment and inspection documentation.
Product-form, cut-to-size, forging and drawing-based supply support.
Export packaging and international delivery assistance.