Your Professional Flanges Supplier
Baoji Hairuijie Metal Co., Ltd. is a leading supplier specializing in titanium exhaust pipe components, offering a wide range of models. Our clientele consists primarily of automotive modification enthusiasts from around the globe.
Standardized Production
We are capable of manufacturing and supplying products in compliance with international standards, including GB, ASTM, CEFR, GOST, and others.
Quality Certification
Baoji Hairuijie Metal Co., Ltd. has obtained ISO 9001 quality management system certification. We maintain a rigorous quality control and testing framework to ensure product excellence.
Custom Service
We offer tailored solutions to meet specific customer requirements.
Sales Market
Our products are exported to countries across Europe, America, Australia, Russia, Japan, Korea, and other regions worldwide.
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Titanium V-Band FlangesProduct Name:Titanium V-Band FlangesMaterial:Gr2/Gr5 TitaniumModel Number:HRJ-Ti-PartsTechnics:CNC MachineSize:CustomizedSurface: Polishing SurfaceBrand Name:TIHRJPlace of Origin:Shaanxi Baoji ChinaApplication: Auto Industry,Motor-domread more
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Titanium 3 Inch V-band ClampMaterial:TitaniumModel Number:HRJ-Ti-PartsTechnics:CNC MachineSize::1/1.5/4.5/2/3.15/2.25/4/2.36/2.5/2.75/3/1.75/3.5/5Surface: Polishing SurfaceBrand Name:TIHRJPlace of Origin:Shaanxi Baoji ChinaApplication: Auto Industry,Motor-domread more
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Exhaust V BandsProduct Name:Exhaust V Bands ClampsMaterial:TitaniumModel Number:HRJ-Ti-PartsTechnics:CNC MachineSize::1/1.5/4.5/2/3.15/2.25/4/2.36/2.5/2.75/3/1.75/3.5/5Surface: Polishing SurfaceBrand Name:TIHRJPlace of Origin:Shaanxi Baoji Chinaread more
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Exhaust V Band ClampProduct Name:Exhaust Pipe ClampMaterial:TitaniumSurface: Polishing SurfaceBrand Name:TIHRJPlace of Origin:Shaanxi Baoji China Application: Auto Industry,Motor-dom Type Of Shipping:DHL/FEDEX/UPSread more
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Separate V-Band FlangesIntro• Items: Separate V-Band Flanges• Model Number: HRJ- Separate V-Band Flanges• Brand Name: TIHRJ• Grade:GR2 Titanium,Stainless steel• Sizes: 2' to 5'• Customize: Support• Place of Origin: Shaanxi, Chinaread more
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V-Band Outlet Clamp• Items: V-Band Outlet Clamp• Model Number: HRJ- V-Band Outlet Clamp• Brand Name: TIHRJ• Grade:GR2 Titanium,Stainless steel• Sizes: 2' to 5'• Customize: Support• Place of Origin: Shaanxi, Chinaread more
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Blow Off Valve Weld Flange• Items: Blow Off Valve Weld Flange• Model Number: HRJ- Blow Off Valve Weld Flange• Brand Name: TIHRJ• Grade:GR2 Titanium, Stainless steel, aluminum• Sizes: Customizable size• Place of Origin: Shaanxi, Chinaread more
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Quick Release Intercooler Pipe Clamp• Items: Quick Release Intercooler Pipe Clamp• Model Number: HRJ- Quick Release Intercooler Pipe Clamp• Brand Name: TIHRJ• Grade:GR2 Titanium, Stainless steel, aluminum• Sizes:2- 5• Place of Origin: Shaanxi, Chinaread more
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Air Flow Sensor Titanium MAF Flange• Items: Air Flow Sensor titanium MAF Flange• Model Number: HRJ- Air Flow Sensor titanium MAF Flange• Brand Name: TIHRJ• Grade:Titanium• Place of Origin: Shaanxi, Chinaread more
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3 Holes Flange• Items: 3 Holes Flange• Model Number: HRJ-3 Holes Flange• Brand Name: TIHRJ• Grade:GR2 Titanium• Standards: ASTM B363-19• Sizes: Conventional standard parts and customization• Place of Origin: Shaanxi, Chinaread more
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Intake BOV Flange• Items: intake BOV Flange• Model Number: HRJ- intake BOV Flange• Brand Name: TIHRJ• Grade:GR2 Titanium, Stainless steel, aluminum• Sizes: Customizable size• Place of Origin: Shaanxi, Chinaread more
Specification
|
Brand Name |
TIHRJ |
|
Grade |
GR2 Titanium |
|
Standards |
ASTM B363-19 |
|
Material |
Titanium |
|
Surface |
Polishing, brushed or sand blast |
|
Technics |
CNC Machine |
|
Place of Origin |
Shaanxi, China |
Titanium Flange Size Chart
|
Bore Diameter |
Length Through Hub |
||||||||||||||||||
|
Nominal Pipe Size |
Flange Outside Diameter |
Flange Thickness |
Hub Dia. At Base |
Raised Face Dia. |
Hub Dia. At Welding Point |
Welding Neck |
Slip On |
Welding Neck |
Slip On |
||||||||||
|
In |
mm |
In |
mm |
In |
mm |
In |
mm |
In |
mm |
In |
mm |
In |
mm |
In |
mm |
In |
mm |
In |
mm |
|
1/2″ |
15 |
3.50 |
88.90 |
0.44 |
11.11 |
1.19 |
30.16 |
1.38 |
34.93 |
0.84 |
21.34 |
0.62 |
15.75 |
0.88 |
22.35 |
1.88 |
47.63 |
0.63 |
15.88 |
|
3/4″ |
20 |
3.88 |
98.43 |
0.50 |
12.70 |
1.50 |
38.10 |
1.69 |
42.86 |
1.05 |
26.67 |
0.82 |
20.83 |
1.09 |
27.69 |
2.06 |
52.39 |
0.63 |
15.88 |
|
1″ |
25 |
4.25 |
107.95 |
0.56 |
14.29 |
1.94 |
49.21 |
2.00 |
50.80 |
1.32 |
33.53 |
1.05 |
26.67 |
1.36 |
34.54 |
2.19 |
55.56 |
0.69 |
17.46 |
|
1-1/4″ |
32 |
4.63 |
117.48 |
0.63 |
15.88 |
2.31 |
58.74 |
2.50 |
63.50 |
1.66 |
42.16 |
1.38 |
35.05 |
1.70 |
43.18 |
2.25 |
57.15 |
0.81 |
20.64 |
|
1-1/2″ |
40 |
5.00 |
127.00 |
0.69 |
17.46 |
2.56 |
65.09 |
2.88 |
73.03 |
1.90 |
48.26 |
1.61 |
40.89 |
1.95 |
49.53 |
2.44 |
61.91 |
0.88 |
22.23 |
|
2″ |
50 |
6.00 |
152.40 |
0.75 |
19.05 |
3.06 |
77.79 |
3.63 |
92.08 |
2.38 |
60.45 |
2.07 |
52.58 |
2.44 |
61.98 |
2.50 |
63.50 |
1.00 |
25.40 |
|
2-1/2″ |
65 |
7.00 |
177.80 |
0.88 |
22.23 |
3.56 |
90.49 |
4.13 |
104.78 |
2.88 |
73.15 |
2.47 |
62.74 |
2.94 |
74.68 |
2.75 |
69.85 |
1.13 |
28.58 |
|
3″ |
80 |
7.50 |
190.50 |
0.94 |
23.81 |
4.25 |
107.95 |
5.00 |
127.00 |
3.50 |
88.90 |
3.07 |
77.98 |
3.57 |
90.68 |
2.75 |
69.85 |
1.19 |
30.16 |
|
3-1/2″ |
90 |
8.50 |
215.90 |
0.94 |
23.81 |
4.81 |
122.24 |
5.50 |
139.70 |
4.00 |
101.60 |
3.55 |
90.17 |
4.07 |
103.38 |
2.81 |
71.44 |
1.25 |
31.75 |
|
4″ |
100 |
9.00 |
228.60 |
0.94 |
23.81 |
5.31 |
134.94 |
6.19 |
157.16 |
4.50 |
114.30 |
4.03 |
102.36 |
4.57 |
116.08 |
3.00 |
76.20 |
1.31 |
33.34 |
|
5″ |
125 |
10.00 |
254.00 |
0.94 |
23.81 |
6.44 |
163.51 |
7.31 |
185.74 |
5.56 |
141.22 |
5.05 |
128.27 |
5.66 |
143.76 |
3.50 |
88.90 |
1.44 |
36.51 |
|
6″ |
150 |
11.00 |
279.40 |
1.00 |
25.40 |
7.56 |
192.09 |
8.50 |
215.90 |
6.63 |
168.40 |
6.07 |
154.18 |
6.72 |
170.69 |
3.50 |
88.90 |
1.56 |
39.69 |
|
8″ |
200 |
13.50 |
342.90 |
1.13 |
28.58 |
9.69 |
246.06 |
10.63 |
269.88 |
8.63 |
219.20 |
7.98 |
202.69 |
8.72 |
221.49 |
4.00 |
101.60 |
1.75 |
44.45 |
|
10″ |
250 |
16.00 |
406.40 |
1.19 |
30.16 |
12.00 |
304.80 |
12.75 |
323.85 |
10.75 |
273.05 |
10.02 |
254.51 |
10.88 |
276.35 |
4.00 |
101.60 |
1.94 |
49.21 |
|
12″ |
300 |
19.00 |
482.60 |
1.25 |
31.75 |
14.38 |
365.13 |
15.00 |
381.00 |
12.75 |
323.85 |
12.00 |
304.80 |
12.88 |
327.15 |
4.50 |
114.30 |
2.19 |
55.56 |
|
14″ |
350 |
21.00 |
533.40 |
1.38 |
34.93 |
15.75 |
400.05 |
16.25 |
412.75 |
14.00 |
355.60 |
13.25 |
336.55 |
14.14 |
359.16 |
5.00 |
127.00 |
2.25 |
57.15 |
|
16″ |
400 |
23.50 |
596.90 |
1.44 |
36.51 |
18.00 |
457.20 |
18.50 |
469.90 |
16.00 |
406.40 |
15.25 |
387.35 |
16.16 |
410.46 |
5.00 |
127.00 |
2.50 |
63.50 |
|
18″ |
450 |
25.00 |
635.00 |
1.56 |
39.69 |
19.88 |
504.83 |
21.00 |
533.40 |
18.00 |
457.20 |
17.25 |
438.15 |
18.18 |
461.77 |
5.50 |
139.70 |
2.69 |
68.26 |
|
20″ |
500 |
27.50 |
698.50 |
1.69 |
42.86 |
22.00 |
558.80 |
23.00 |
584.20 |
20.00 |
508.00 |
19.25 |
488.95 |
20.20 |
513.08 |
5.69 |
144.46 |
2.88 |
73.03 |
|
24″ |
600 |
32.00 |
812.80 |
1.88 |
47.63 |
26.13 |
663.58 |
27.25 |
692.15 |
24.00 |
609.60 |
23.25 |
590.55 |
24.25 |
615.95 |
6.00 |
152.40 |
3.25 |
82.55 |
Types of Flanges
The flanges produced by our company mainly include the following types:
Separate V-Band Flanges
Separate V-Band Flanges are components used in exhaust systems and other piping applications to create a secure, leak-proof, and easily detachable connection.
3 Holes Flange
The 3 Holes design is more than a simple geometric configuration. It also embodies the philosophy of precision engineering. Each bolt hole is precisely calculated and machined to ensure optimal sealing and connection strength.
2 Holes Flange
2 Holes Flange is a connector commonly used to connect and fix pipes, mechanical equipment and components. It is used to install bolts or screws to ensure the stability and sealing of the connection.

Advantages of Flanges
Exceptional Corrosion Resistance
One of the main reasons titanium flanges are highly favoured is their excellent corrosion resistance. Titanium is naturally resistant to many types of corrosion, including saltwater, acids, and chlorine. This makes titanium flanges ideal for industries such as marine, chemical, and petrochemical industries, where exposure to harsh chemicals and environments is common.
High Strength-to-Weight Ratio
Titanium flanges are incredibly strong yet lightweight. This high strength-to-weight ratio makes them perfect for applications where weight reduction is critical, such as in the aerospace and automotive industries.
Heat Resistance
Titanium flanges are recognised to be used at high temperatures, and their quality is not affected. This makes them very suitable for use in conditions where there is high heat, for instance, in power plant boilers and heat exchangers.
Non-toxic and Biocompatible
Titanium is also compatible with the human body; therefore, it will not harm the body when it comes into contact with it. This makes titanium flanges suitable for use in medical devices and food processing industries because they are safe.
Long-Term Durability and Cost-Effectiveness
Although titanium flanges are relatively more expensive than other flanges, their durability and performance make them worthy to be used. They do not corrode, withstand high temperatures and wear and tear; hence, they are not easily worn out and therefore require frequent replacement.
Easy Maintenance
Titanium flanges are also easy to maintain. Since they resist corrosion and wear, they require less frequent inspection and maintenance compared to other materials. This reduces downtime and maintenance costs for companies, improving overall operational efficiency.
Applications of Flanges
Aviation and Aerospace Industry
In the aviation and aerospace industry, where weight reduction is critical for fuel efficiency and performance, titanium flanges find extensive use. They are employed in aircraft hydraulic systems, fuel lines, and engine components, contributing to the overall reliability and safety of air travel.
Medical and Pharmaceutical Applications
The medical and pharmaceutical industries prioritize materials that are biocompatible and resistant to chemicals and bodily fluids. Titanium flanges meet these criteria, making them suitable for applications in medical devices, implants, and pharmaceutical manufacturing equipment.
Marine Environments
The marine environment, with its constant exposure to saltwater and harsh conditions, demands materials that can withstand corrosion and erosion. Titanium flanges excel in maritime applications, ensuring the longevity and reliability of shipbuilding and offshore platforms.
Precautions for Using Titanium Flanges
Clean Regularly
Wipe the flange surface using a damp soft cloth combined with a mild detergent solution. This removes dirt, oil and residues that may weaken the protective oxide layer. Avoid harsh scrubbing or strong chemicals during cleaning.
Inspect for Surface Damage
Check flanges for cracks, dents or wear during routine inspections. Surface flaws can grow under pressure or chemical exposure. Early detection helps prevent costly repairs or failure.
Avoid Mixing Metals
The titanium flanges should not come in contact with dissimilar metals especially carbon steel. The contact between these materials when wet leads to the development of galvanic corrosion. Different metals which must touch require the use of insulating materials.
Use the Right Gaskets
Pick gaskets that have proper chemical compatibility with titanium at all times. When you use incompatible gaskets between the flanges, they will produce leaks while damaging the flange face. Always follow the material guidelines when you need to replace gaskets.
Use Correct Torque Settings
When you tighten bolts use equal pressure while following the specified torque values. Applying torque that is either uneven or excessive will create flange warping and leak issues. A torque wrench provides the correct level of tightness for all applications.
Avoid Harsh Chemicals
Titanium shows resistance against most chemical substances, yet it is not immune to every type. Titanium should never encounter hydrofluoric acid or strong alkalis. When accidental exposure occurs immediately neutralise and rinse the affected surface.
Protect During Welding
To prevent oxidation, titanium requires the use of inert gas shielding during the welding process. Make sure to perform a thorough surface cleaning before you start welding. Excessive heat exposure results in embrittlement which leads to weakened joint structures.
Watch for Leaks
Perform regular inspections to identify any leaks or pressure drops throughout the operating process. Gasket failure or flange issues may produce small leaks in the system. Detecting leaks early on helps to avoid extensive damage and operational stoppage.
Titanium Flange Storage Precautions
Temperature And Humidity
The ideal temperature range for storing titanium flanges is between 10°C and 30°C (50°F - 86°F). This is a relatively moderate temperature range that helps to prevent any thermal stress on the flanges. Extreme temperatures can cause the metal to expand or contract, which might lead to warping or cracking, especially if the flanges are exposed to rapid temperature changes.
Storage Location
When it comes to where you store your titanium flanges, it's important to choose a location away from any sources of contamination. Avoid areas near chemical storage, welding operations, or any place where there's a lot of dust or debris. Chemicals can react with the titanium, and dust can scratch the surface of the flanges.
Protection From Physical Damage
Titanium flanges are tough, but they're not indestructible. You need to protect them from physical damage during storage. When handling the flanges, use proper lifting equipment like cranes or forklifts with soft - padded forks. This helps to prevent scratches and dents on the surface.
Packaging and Shipping
|
Packaging |
Wooden Packages |
|
Shipping |
DHL/FEDEX/UPS |
Our Factory
The company was established in 2017 and is located in Baoji City, Shaanxi Province, which is known as "China's Titanium Valley".

FAQ
We're professional flanges manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy flanges for sale here from our factory. Contact us for quotation.
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