Custom Titanium Flange — Precision-Engineered Connecting Solutions for Demanding Industrial Applications

Baoji Huacan's custom titanium flange is a precision-forged connecting component manufactured from high-grade titanium alloys, including Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, and Grade 23. Designed for OD ranges of 100-300mm with polished surface finishes and meeting ASTM B381 and equivalent international standards. With over 10 years of expertise in the machining industry, we have 40+ CNC machines and over 1,000 tonnes of yearly production capacity and we manufacture flanges to your specific designs, pressure ratings and dimensional requirements. If your system demands don’t fit normal ANSI or DIN setups, this is the product for you.

Parameter	Details
Product Type	Titanium Flange
Available Grades	Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, Grade 9, Grade 23 (Ti-6Al-4V ELI)
Material Standards	ASTM B381, AMS, DIN, ISO
Outer Diameter Range	100–300mm (custom sizes available)
Thickness	Customized according to drawings or application requirements
Flange Types	Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint
Pressure Rating	Customized according to design requirements
Sealing Face Options	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Tongue & Groove
Manufacturing Standards	ANSI/ASME B16.5, DIN, JIS, or customer-specific standards
Surface Finish	Natural titanium finish, polished, anodized, or customized
Surface Roughness	Ra 3.2–6.3μm for sealing surfaces (custom requirements available)
Dimensional Tolerance	According to customer drawings or applicable standards
Custom Manufacturing	OEM/ODM, drawing-based production, full specification customization
Quality Documentation	MTC, COC, EN10204 3.1 certificates available

Titanium Flange Application

Titanium flanges have the best strength to weight ratio of any similar steel or alloy product. This is particularly important in offshore platforms and aerospace pipes and chemical processing systems where reduction of the structural stress is a design consideration.

Titanium has a natural oxide layer that passively protects against corrosion in saltwater, chloride conditions, and in most acidic media. It does not pit or suffer crevice corrosion under these circumstances as does stainless steel.

Grade 5 (Ti-6Al-4V) is the perfect choice in high pressure applications where a higher tensile strength is a must while Grade 2 is the choice when maximum weldability and corrosion resistance are a concern. Grade 7 has better resistance to decreasing acid conditions.

Product Comparison

Feature	Custom Titanium Flange	Stainless Steel Flange	Carbon Steel Flange
Weight	Approx. 45% lighter than steel alternatives	Medium	Heavy
Density	Approx. 4.51 g/cm³	Approx. 7.9–8.0 g/cm³	Approx. 7.85 g/cm³
Corrosion Resistance	Excellent resistance to seawater, chlorides, and aggressive environments	Good resistance depending on grade	Requires additional protection in corrosive environments
Strength-to-Weight Ratio	Excellent	Good	Moderate
Seawater Applications	Excellent choice for marine and offshore applications	Used with suitable grades and protection	Limited without coatings or protection
Custom Manufacturing	Full OEM/ODM and drawing-based production	Standard sizes mainly available; customization possible	Standard sizes mainly available; customization possible
Service Life in Harsh Environments	Long service life with proper material selection	Good performance depending on environment	May require maintenance or corrosion protection
Biocompatibility	Suitable for medical and special applications	Depends on alloy composition	Generally not selected for biomedical applications

Chemical Processing

Titanium Flange Application

Energy & Power Generation

Titanium Flange Application

Offshore & Marine

Titanium Flange Application

Chemical Processing: Titanium flanges link pipes in reactors and heat exchangers handling acids, chlorides and strong solvents where steel flanges would erode fast.

Offshore & Marine: Titanium’s resistance to seawater makes it the material of choice for subsea pipelines, desalination systems and offshore platform plumbing. The weight reductions are quite important in terms of the reduction of the strain on the structure.

Aerospace: Low weight and high strength make these flanges suitable for hydraulic and fuel system connections in aircraft and spacecraft assemblies.

Medical & Pharmaceutical: Titanium's biocompatibility and cleanliness make it appropriate for sterile processing equipment and medical gas systems.

Energy & Power Generation: Used in geothermal, nuclear, and industrial energy systems where thermal resistance and longevity are critical for custom titanium flange.

Standard flanges may fail in three key situations: mismatched bolt patterns on outdated equipment, poor corrosion resistance in harsh chemical environments, and excessive weight in aeronautical or subsea systems.

Our titanium flanges address all three of those. Titanium is 45% lighter than duplex stainless steel yet has better resistance to chloride caused pitting and crevice corrosion . Titanium is known for its long-term reliability in areas where stainless steel or carbon steel would fail.

We make every flange from your technical drawings, not from a catalogue. We provide precisely what your system demands, whether it a non-standard bolt circle, a special sealing face geometry (RTJ, tongue-and-groove, raised face) or a particular hub design.

Production starts with high-purity titanium billets certified to ASTM B381. Parts are forged utilising precision die forging machinery and our 4,000-ton hydraulic press, which provides the requisite grain structure and mechanical integrity.

Annealing is performed after forging to reduce internal tensions and to provide dimensional stability during subsequent machining. This step is required to retain accurate geometry in service during pressure and heat cycling.

CNC turning and milling on our 40+ machining centers then bring each flange to final dimensions, including sealing faces, bolt holes, and hub profiles. Thread machining is performed where required, with tolerance control applied to all critical mating and sealing surfaces.

Receiving Drawings

Annealing

Developing Machining Process

Finish Machining

Preparing Raw Materials

Deburring

Rough Machining

Deburring

Capability	Details
CNC Machining	40+ CNC lathes, machining centers, and gantry systems for complex titanium parts
Production Capacity	Supports over 1,000 tons of titanium component processing annually
Forging Capability	4,000-ton hydraulic press and ring rolling equipment for titanium forgings
Forging Capacity	Over 3,000 tons of annual forging capacity
Manufacturing Range	From prototypes and samples to small batches and volume production
Delivery Time	Standard lead time: 3–5 weeks (varies by complexity and order quantity)
Quality Assurance	Material traceability, in-process inspection, dimensional inspection, and final quality verification


melting	melting	forging	forging	rolling

Raw material verification is the first step. Every titanium billet is chemically analyzed using spectrometers and cross-checked against supplier certificates before entering production.

In-process dimensional checks are performed at each manufacturing stage — forging, annealing, and machining — to maintain tight tolerances throughout. Ultrasonic testing detects internal flaws without damaging the component.

The completed flanges are examined with the use of coordinate measuring machines (CMM), surface roughness gauges and mechanical property tests (including tensile strength, yield strength and hardness according to ASTM, AMS and DIN standards).

Mechanical Properties Testing

Inner Diameter Measurement

Ultrasonic Testing

CMM Dimensional

Mounting Hole Diameter Measurement

Quality Management System Certification

Packaging Method	Purpose
Custom Foam Inserts	Protect precision-machined surfaces and prevent scratches or deformation during transportation
Vacuum-Sealed Bags with Desiccants	Provide moisture protection and maintain product condition during international shipment
Heavy-Duty Wooden Crates	Suitable for large, heavy, or high-value titanium components requiring extra protection
Detailed Labeling & Documentation	Ensure full traceability, easy identification, and smooth customs clearance

Q: What lead time should I expect for the product order?

A: Typically 3–5 weeks, depending on material grade, complexity, and order volume. Custom tooling and CNC programming are set up specifically for each design.

Q: Which titanium grade should I choose?

A: Grade 2 works well for general corrosion resistance and weldability. Grade 5 (Ti-6Al-4V) suits high-pressure, high-strength applications. Grade 7 performs best in reducing acid environments. We can advise based on your operating conditions.

Q: Can you produce a flange from a damaged sample without drawings?

A: Yeah. We employ 3D scanning and CAD reconstruction to reverse engineer correct geometry prior to manufacturing.

Q: Which gaskets are suitable for titanium flanges?

A: Use PTFE or suitable spiral wrapped gaskets. They inhibit galvanic corrosion between different materials and prevent harm to the flange face.

Q: How do you prevent galling on threaded titanium flanges?

A: Titanium has certain friction properties that can cause galling during assembly if the surface is not treated. Anodising or anti-seize coatings on threaded areas are advised.