Seamless Titanium Pipe Tube Extruded, Cold Rolled, Forging

GR1, GR2, GR3, GR4, GR6 Seamless Titanium Pipe Tube Extruded, Cold Rolled, Forging

Tubes composed of titanium are referred to as titanium tubes. Titanium tubes are strong, lightweight, and have excellent mechanical characteristics.

1. What is a titanium pipe/tube?

Tubes composed of titanium are referred to as titanium tubes. Titanium tubes are strong, lightweight, and have excellent mechanical characteristics. It is frequently used in heat exchangers, condensers, evaporators, delivery pipes, serpentine tube heat exchangers, coil heat exchangers, and tube heat exchangers. Titanium tubes are commonly used in the nuclear power industry as standard tubes for their units.

Titanium tubes are strong, lightweight, and have superior mechanical characteristics. It is frequently used in heat exchangers, condensers, evaporators, delivery pipes, serpentine tube heat exchangers, coil heat exchangers, and tube heat exchangers. Titanium tubes are commonly used in the nuclear power industry as standard tubes for their units.

Titanium tube production process flow

Forging rod -> extrusion (cross-rolled and pierced) -> cold rolling -> oil removal -> pickling -> annealing -> finishing -> cutting to length -> inspection -> packaging and storage.

1. Boring and hole expansion: Transfer the bar blank from the Fifth Factory: The first step is to bore the hole on the lathe, and then continue to expand the hole after boring, thus forming an extruded tube blank.

2. Extrusion: Then the expanded tube blank is copper-clad, and then placed in a power frequency induction furnace for heating. The heated tube blank is put into a 3150t hydraulic press for extrusion (since extrusion is a hot process Processing, considering that metal is easily contaminated by gas during heating and extrusion, appropriate protective measures should be taken. When extruding, appropriate lubricants should be selected to prevent sticking to the mold. For example, using jacketed extrusion and glass lubrication Extrusion. Generally, copper sheathing is used)

3. The tube blank after extrusion is too long to be loaded on the rolling mill and contains copper skin, so it must be cut to length and then pickled to remove the copper skin (usually sulfuric acid H2SO4 is used to remove the copper skin, titanium is not easily soluble) In sulfuric acid, and copper sulfate can be produced after pickling), this is the tube blank that can be put on the rolling mill.

4. Opening the billet on the LG80 rolling mill: The extruded tube billet has many defects, so it needs to be repaired and inspected. Surface defects can be removed with a scraper before they can be rolled on the rolling mill. (This is the scraper you usually see)

5. Degreasing: Molybdenum disulfide and process oil are needed for lubrication and protection during the rolling process. Therefore, degreasing and pickling are required before entering the annealing furnace to ensure that the internal and external surfaces are clean without contaminating the annealing furnace. Use detergent and saponification solution to remove molybdenum disulfide.

6. Pickling: Pickling, comprising pickling in the intermediate process and pickling in the end product, is an auxiliary step in the cold processing manufacturing of titanium tubes. Pickling before the end product is used to successfully remove the oxide layer from the titanium pipe's surface. Pickling in the intermediate process is used to improve surface quality, get the pipe ready for the next step, and keep the surface clean before annealing. (The vacuum degree of the vacuum annealing furnace cannot be guaranteed due to outdated equipment.)

The basic ingredients of the solution are hydrofluoric acid (HF) and nitric acid (HNO3). The ratio of the solution's concentration is: (30%–40%) HNO3 + (3%~5%) The solution temperature for HF plus the remaining H2O is 50 °C. Three to ten minutes are needed for pickling. Pickling, hot water washing, cold water rinsing, and drying are the steps in the process.

7. Annealing: Annealing also includes intermediate annealing and finished product annealing. After the cold deformation of metal, its strength and hardness increase, and its plasticity decreases. Intermediate annealing is generally complete annealing. The purpose is to recrystallize the tube structure to restore its plasticity before rolling, eliminate the "work hardening" and residual stress generated during the rolling process, and reduce the material's deformation resistance and plasticity. was restored and rolling could continue. The purpose of heat treatment of finished products is to obtain products with certain structures and properties and recrystallization annealing is generally used.

Advantages and Disadvantages of Titanium pipe/tubes

1. High strength, low density, good mechanical properties, good durability and corrosion resistance.

2. High viscosity, difficult cutting and processing, poor wear resistance, and complex production process.

2. Chemical composition of titanium pipe/tubes

TypeNCHFeOAlVMoNiPdTi
Element
GR.1≤0.03≤0.10≤0.015Residual
GR.2≤0.03≤0..08≤0.015≤0.3≤0.25Residual
GR.5≤0.05≤0.10Residual
GR.7≤0.03≤0.10Residual
GR.9≤0.02≤0.10Residual
GR.12≤0.03≤0.08≤0.015≤0.30≤0.25Residual

3. Mechanical properties of titanium pipe/tubes

TestASTM B348        Grade 1ASTM B348        Grade 2
Tensile Strength min. MPa [ksi]240 [35]345 [50]
Yield Strength min. MPa [ksi]138 [20]275 [40]
Elongation in        2", min. %2420
Reduction of        Area, min. %3030
TestASTM B348        Grade 3ASTM B348        Grade 4
Tensile Strength min. MPa [ksi]450 [65]550 [80]
Yield Strength min. MPa [ksi]380 [55]483 [70]
Elongation in        2", min. %1815
Reduction of        Area, min. %3025

4. Physical properties of titanium pipe/tubes

Physical Properties of Titanium Metal
Property NameDescription
AppearanceSilvery, Gray-white, Metallic
Strength-To-Weight RatioHigh (40%)
Atomic Number22
Atomic Weight47.88
Density At 25°C In g/cm34.5
Atomic Radius In mm0.145
Boiling Point In °C3287
Melting Point In °C1668
Tensile Strength In MPa220
Modulus In GPA116
Shear Modulus In GPA43.0
Hardness, Brinell70
Elongation (At Breaking Point)54%
Poisson Ratio0.34

5. Specifications of titanium pipe/tubes

Being a trustworthy titanium pipe/tube manufacturer and supplier, Shanghai Yinggui Metal Pbaructs Company aims to make manufacturing easier for our business partners. Shanghai Yinggui Metal offers GR1, GR2, GR3, GR4, GR6, GR9, GR18, GR19, GR26, GR29 etc.

Product NameTitanium Tube/Pipe
MaterialTitanium & Titanium Alloy Tube & Pipe
MarkingCustomer Requested
StandardASTM B338/SB861, ASTM SB338/SB861, EN10204
GradeGR1, GR2, GR3, GR4, GR6, GR9, GR18, GR19, GR26, GR29 etc.
Brade
PackagingSea Worthy Packaging
UsedIndustrial, Heating Exchanging, Condenser, Medical, Chemical, Aerospace, Oil, Sports, Bike etc.

6. Applications and characteristics of titanium pipe/tubes

Performance characteristics of titanium pipe/tubes steel

1. The specific strength of titanium tubes is high. Titanium alloys typically have a density of 4.5g/cm3, which is just 60% of steel. Pure titanium has a strength that is comparable to that of common steel. Many alloy structural steels cannot match the strength of some high-strength titanium alloys.

2. Titanium tube has high thermal strength. The service temperature of the titanium tube is several hundred degrees higher than that of aluminum alloy, and it can work at temperatures of 450 to 500°C for a long time.

3. Titanium tube has good corrosion resistance. Titanium alloy works in humid atmosphere and seawater medium, and its corrosion resistance is much better than stainless steel; it is particularly resistant to pitting corrosion, acid corrosion, and stress corrosion; it is resistant to alkali, chloride, chlorine-based organic substances, nitric acid, and sulfuric acid. etc. have excellent corrosion resistance.

4. Titanium tube has good low-temperature performance. Titanium alloys can still maintain their mechanical properties at low and ultra-low temperatures. Titanium alloys with good low-temperature properties and extremely low interstitial elements, such as TA7, can maintain a certain plasticity at -253°C.

5. Titanium tubes have high chemical activity. Titanium has high chemical activity and produces strong chemical reactions with O, N, H, CO, CO2, water vapor, ammonia, etc. in the atmosphere.

6. Titanium tube has small thermal conductivity and small elastic modulus.

7. Main titanium product brand list

China GB/TElementU.S.A ASTMRussia ΓOCTJapan JISGermany DINU.K. BS
TA1(ELI)TiGR1BT1-00JIS 1Ti12TA 1
TA2(ELI)TiGR2BT1-0JIS 2Ti32TA2
TA3(ELI)TiGR3BT1-0JIS 3Ti42TA2
TA4(ELI)TiGR4BT1-0JIS 4Ti12TA3
TA5Ti-4Al-0.005B




TA6Ti-5Al
BT5


TA7(ELI)Ti-5Al-2.5SnA-1、GR6BT5-1KS115AS-CTiAl5Sn2.5
TA8(TA8-1)Ti-0.05PdGR16(GR17)
17kind(18kind)

TA9(TA9-1)Ti-0.2PdGR7(GR11)
11kind(12kind)

TA10Ti-0.3Mo-0.8NiGR12

Ti Ni0.8Mo0.3
TA11Ti-8Al-1Mo-1VA-4(Ti-811)Ti-811Ti-811Ti-811Ti-811
TA12(TA12-1)Ti-5.5Al-4Sn-2Zr-1Mo-1Nd-0.25Si




TA13Ti-2.5Cu




TA14Ti-2.3Al-11Sn-5Zr-1Mo-0.2Si




TA15Ti-6.5Al-1Mo-1V-2Zr(-0.15Si)
BT20


TA15-1Ti-2.5Al-1Mo-1V-1.5Zr




TA15-2Ti-4Al-1Mo-1V-1.5Zr




TA16Ti-2Al-2.5Zr




TA17Ti-2Al-2V




TA18Ti-3Al-2.5VGR9(AB-5)OT4-1B61kind(61Fkind)

TA19Ti-6Al-2Sn-4Zr-2Mo-0.1SiTi-6242S(NearAB-4)
Ti-6242STi-6242S
TA20Ti-4Al-3V-1.5Zr




TA21Ti-1Al-1Mn
OT4-0


TA22(TA22-1)Ti-3Al-1Mo-1Ni-1Zr




TA23Ti-2.5Al-2Zr-1Fe




TA24(TA24-1)Ti-3Al-2Mo-2Zr




TA25Ti-3Al-2.5V-0.05PdGR18



TA26Ti-3Al-2.5V-0.1RuGR26(GR27)



TA27(TA27-1)Ti-0.10Ru




TA28Ti-3Al




TB2Ti-5Mo-5V-8Cr-3Al




TB3Ti-3.5Al-10Mo-8V-1FeNearTi-8823NearBT32


TB4Ti-4Al-7Mo-10V-2Fe-1ZrTi-47121



TB5Ti-15V-3Al-3Cr-3SnTi-15333NearBT-35Ti-15-3Ti-15-3Ti-15-3
TB6Ti-10V-2Fe-3AlTi-10-2-3



TB7Ti-32Mo




TB8Ti-15Mo-3Al-2.7Nb-0.25SiGR21(Beta 21S)



TB9Ti-3Al-8V-6Cr-4Mo-4Zr(-0.06Pd)GR19(GR20)



TB10Ti-5Mo-5V-2Cr-3AlBeta C



TB11Ti-15Mo




TC1Ti-2Al-1.5Mn
OT4-1


TC2Ti-4Al-1.5Mn
OT4


TC3Ti-5Al-4V




TC4(TC4ELI)Ti-6Al-4VGR5(GR23)BT6(BT6C)60kind(60Ekind)TiAl6V4Ti-6Al-4V
TC6Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si
BT3-1


TC8Ti-6.5Al-3.5Mo-0.25Si
NearBT8


TC9Ti-6.5Al-3.5Mo-2.5Sn-0.3Si




TC10Ti-6Al-6V-2Sn-0.5Cu-0.5FeNearAB-3



TC11Ti-6.5Al-3.5Mo-1.5Zr-0.3Si
NearBT9


TC12Ti-5Al-4Mo-4Cr-2Zr-2Sn-1Nb




TC15Ti-5Al-2.5Fe




TC16Ti-3Al-5Mo-4.5V
BT16


TC17Ti-5Al-2Sn-2Zr-4Mo-4Cr




TC18Ti-5Al-4.75Mo-4.75V-1Cr-1Fe
NearBT22


TC19Ti-6Al-2Sn-4Zr-6MoTi-6246



TC20Ti-6Al-7Nb




TC21Ti-6Al-2Mo-1.5Cr-2Zr-2Sn-2Nb




TC22Ti-6Al-4V-0.05PdGR24



TC23Ti-6Al-4V-0.1RuGR29



TC24Ti-4.5Al-3V-2Mo-2FeSP-700



TC25Ti-6.5Al-2Mo-1Zr-1Sn-1W-0.2Si
NearBT8-1


TC26Ti-13Nb-13Zr




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GR1, GR2, GR3, GR4, GR6 Seamless Titanium Pipe Tube Extruded, Cold Rolled, Forging

GR1, GR2, GR3, GR4, GR6 Seamless Titanium Pipe Tube Extruded, Cold Rolled, Forging

GR1, GR2, GR3, GR4, GR6 Seamless Titanium Pipe Tube Extruded, Cold Rolled, Forging

GR1, GR2, GR3, GR4, GR6 Seamless Titanium Pipe Tube Extruded, Cold Rolled, Forging


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