Pure Titanium/Titanium Alloy Flanges, Fasteners and Custom Machined Parts for Industrial Use

Titanium flanges, fasteners and custom machined parts are various functional titanium products manufactured through targeted processing technologies based on the excellent properties of titanium and titanium alloys. Titanium flanges are formed by forging + machining, with good sealing performance and connection strength, suitable for key connection parts of pipeline systems; titanium fasteners, relying on their lightweight, high strength and corrosion resistance, replace traditional metal fasteners to adapt to harsh environments; custom machined parts realize the customized production of special-shaped structures, precise dimensions and special properties according to specific customer drawing requirements. These three types of products are widely used in aerospace, marine engineering, chemical equipment, medical devices and other fields with high requirements for material performance and dimensional accuracy, especially suitable for extreme working conditions such as high temperature, high pressure and strong corrosion.

Product specification

Product Parameters

Product Information

Product Type	Detailed Core Parameters	Customization Range
Titanium Flanges	Nominal Diameter: DN10—DN1200; Nominal Pressure: PN0.6—PN42.0MPa; Sealing Surface Type: Raised Face (RF), Male-Female Face (MFM), Tongue-Groove Face (TG); Dimensional Tolerance: ±0.1mm—±2mm; Executive Standard: ASTM B381/B16.5	Special-Shaped Flanges (According to Drawings), Extra-Large Diameter Flanges, Special Pressure Rating Flanges, Custom Sealing Surface Flanges
Titanium Fasteners	Specification: M2—M64 (Bolts/Nuts); Screw Diameter: 1mm—20mm; Length: 5mm—500mm; Precision Grade: 6H/6g; Executive Standard: ASTM F468/F136	Non-Standard Specification Fasteners, Special Head/Thread Fasteners, Anti-Corrosion Coated Fasteners
Titanium Custom Machined Parts	Machining Precision: ±0.005mm—±0.1mm; Surface Roughness: Ra0.8—Ra6.3; Maximum Machining Dimension: 3000×2000×1500mm	Various Special-Shaped Structural Parts, Precision Mechanical Parts, Equipment Supporting Custom Parts (According to Customer Drawings/Samples)

Product Name	Titanium Flanges (Titanium Slip-On Flanges, Titanium Weld Neck Flanges, Titanium Blind Flanges), Titanium Fasteners (Titanium Bolts, Titanium Nuts, Titanium Screws, Titanium Washers, Titanium Pins), Titanium Custom Machined Parts (Custom Shaped Parts According to Drawings)
Brand Name	Yunjie
Model	GR1/GR2/GR5
Material	Pure Titanium (GR1/GR2), Titanium Alloy (GR5, etc.)
Process	Flanges (Forging, Machining, Stamping), Fasteners (Cold Heading, Machining, Heat Treatment), Custom Machined Parts (CNC Turning & Milling, Grinding, Welding, Polishing) + Vacuum Annealing/Solution Aging
Minimum Titanium Content	99.5% (Pure Titanium Products); Titanium Alloy Products Comply with Corresponding Grade Standards
Density	4.51g/cm³
Advantages	High Strength, High Toughness, Corrosion Resistance, High Temperature Resistance, Excellent Fatigue Performance, High Dimensional Accuracy, Strong Adaptability
Surface	Pickled Surface, As-Forged Surface, Sandblasted Surface, Polished Surface, Phosphated Surface
Shape	Forgings (Rod, Block, Shaped Parts), Fasteners (Standard/Non-Standard Specifications), Custom Machined Parts (Customized According to Customer Drawings)
Processing Services	Drawing Customization, Performance Optimization, Precision Machining, Surface Treatment, Finished Product Inspection
Minimum Order Quantity	1 Piece for Forgings/Custom Machined Parts; 100 Pieces for Fasteners (Discounts Available for Bulk Orders)

Classification

Classification by Product Type

•Titanium Flanges: Classified by connection method into Slip-On Flanges (suitable for low-pressure pipeline connection), Weld Neck Flanges (suitable for high-pressure and high-temperature pipeline connection), Socket Weld Flanges (suitable for small-diameter high-pressure pipelines), Blind Flanges (suitable for pipeline end plugging); classified by sealing surface type into Raised Face Flanges, Male-Female Face Flanges, Tongue-Groove Face Flanges, Ring Joint Face Flanges.
•Titanium Fasteners: Classified by function into Connecting Fasteners (Bolts, Nuts, Screws), Sealing Fasteners (Washers, Sealing Rings), Positioning Fasteners (Pins, Rivets); classified by standard into Standard Fasteners (complying with international/national standards), Non-Standard Fasteners (customized according to requirements).
•Titanium Custom Machined Parts: Classified by processing technology into Machined Custom Parts (Turning, Milling, Grinding), Welded Custom Parts, Composite Machined Custom Parts; classified by application field into Aerospace Custom Parts, Medical Custom Parts, Chemical Custom Parts, Electronic Custom Parts.
Classification by Composition and Property

•Pure Titanium Products (GR1/GR2): Titanium content ≥99.5%, with excellent corrosion resistance and ductility, easy to process and form, suitable for flanges, fasteners and custom parts in chemical anti-corrosion, medical devices, conventional industry and other scenarios.
•Titanium Alloy Products (GR5, etc.): Higher strength, better high-temperature resistance (can work stably below 600℃ for a long time), excellent fatigue resistance and deformation resistance, suitable for high-pressure and high-load flanges, fasteners and custom parts in aerospace, high-end equipment and extreme environments.
Classification by Surface Treatment Method

•Pickled Surface: Removes oxide scale, improves corrosion resistance, suitable for most industrial scenarios. •Sandblasted Surface: Increases surface roughness, improves assembly friction, suitable for fasteners and structural connectors.
•Polished Surface: High surface finish, reduces fluid resistance, suitable for precision mechanical parts and medical devices. •Phosphated Surface: Enhances surface wear resistance and rust resistance, suitable for fasteners in outdoor and harsh environments.

Specification Selection Table and Composition Table

Titanium Product Specification Selection Table

Chemical Composition Table

Product Type	Range of Conventional Specifications	Core Characteristics	Applicable Scenarios
Titanium Flanges	Slip-On Flanges: DN10-1200mm, PN0.6-1.6MPa; Weld Neck Flanges: DN10-1200mm, PN1.0-42.0MPa; Blind Flanges: DN10-1200mm, PN0.6-42.0MPa; Special-Shaped Flanges: According to Drawings	Excellent Sealing Performance, Firm Connection, Corrosion Resistance, High Temperature Resistance, Suitable for Pipelines of Different Pressure Ratings	Chemical Pipeline Connection, Marine Engineering Pipeline Systems, Aerospace Fluid Pipelines, Nuclear Power Equipment Pipelines, Medical Device Fluid Conveying Pipelines
Titanium Fasteners	Bolts/Nuts: M2-M64, Length 5-500mm; Screws: φ1-20mm, Length 5-300mm; Washers: φ5-80mm, Thickness 0.5-5mm	Lightweight and High Strength, Corrosion Resistance, Firm Assembly, Stable Fatigue Performance	Chemical Equipment Connection, Marine Engineering Assembly, Aerospace Component Fixing, Medical Device Installation
Titanium Custom Machined Parts	Machining Precision ±0.005-0.1mm, Maximum Dimension 3000×2000×1500mm, Customized According to Drawings	Strong Adaptability, Precise Dimensions, Performance Optimized as Needed, High Degree of Personalization	Precision Instrument Accessories, Special Equipment Supporting Parts, Medical Implant Custom Parts, Special Working Condition Structural Parts

Grade	Ti	Impurity Content, Max. (≤)
Grade	Ti	Fe	C	N	O	H	V	Al	Residuals
GR1	Balance	0.2	0.08	0.03	0.18	0.015	—	—	0.1-0.4
GR2	Balance	0.3	0.08	0.03	0.25	0.015	—	—	0.1-0.4
GR5	Balance	0.4	0.08	0.05	0.2	0.015	3.50-4.50	5.50-6.75	0.1-0.4

Characteristics

High Strength and Toughness

Titanium and titanium alloy products have much higher strength than ordinary steel, and at the same time have excellent toughness and impact resistance, which can bear loads and vibrations under complex working conditions and are not easy to break or deform.

Excellent Corrosion Resistance

It has extremely strong stability in harsh environments such as seawater, strong acids, strong alkalis, chlor-alkali, and high-temperature oxidizing atmospheres. The dense oxide film formed on the surface can effectively resist corrosion, and its service life is much longer than that of traditional metal products.

Excellent High-Temperature Resistance

The melting point is as high as 1668℃. Pure titanium products can work stably below 600℃ for a long time, and titanium alloy products can withstand higher temperatures. The mechanical properties remain stable at high temperatures without obvious softening.

Lightweight and Efficient

The density is only 4.51g/cm³, about 60% of that of steel, which can effectively reduce the overall weight of the equipment and lower energy consumption, especially suitable for aerospace, transportation and other fields sensitive to weight.

Precise Dimensional Accuracy

Through precision forging, machining and heat treatment processes, the dimensional tolerance of the product is controllable and the accuracy is high, with good assembly fit, meeting the precision assembly requirements of high-end equipment.

Good Machinability and Customization

Products of different shapes and specifications can be produced through various forging and machining processes, and precise customization according to customer drawings is supported to adapt to various special working conditions and equipment requirements.

Excellent Biocompatibility (Pure Titanium)

Pure titanium is non-toxic and non-allergenic to human tissues, and can fuse well with human tissues, suitable for the production of medical devices and implants.

Titanium Flange Production Process

Raw Material Preparation: High-purity sponge titanium is extracted from titanium concentrate through beneficiation, chlorination and reduction processes, and then smelted multiple times in a vacuum arc furnace to produce titanium ingots with uniform composition and low impurity content, which are then forged into flange blanks.
Pre-Forging Heating: Put the titanium flange blank into a high-temperature furnace and heat it to a suitable temperature to ensure good ductility of the blank for subsequent processing.
Forging Forming: Adopt free forging or die forging process to forge the blank into a flange blank, improving material density and structural strength.
Machining: Use CNC lathes, milling machines and other equipment to perform precision machining such as turning, drilling and milling the sealing surface on the flange blank to ensure dimensional accuracy and sealing surface finish.
Heat Treatment: Put the processed flange into a vacuum annealing furnace for annealing treatment to eliminate processing internal stress, improve material toughness and corrosion resistance.
Quality Inspection: Conduct comprehensive inspections through dimensional accuracy inspection, sealing surface flatness inspection, ultrasonic flaw detection, chemical composition analysis, mechanical property testing, etc. After passing the inspection, package and leave the factory with material inspection report and quality certificate attached.

Titanium Fastener Production Process

Raw Material Preparation: Use high-quality titanium wire or bar as raw material, and perform surface pretreatment (pickling, grinding) to remove oxide scale and impurities.
Forming Processing: The heads of bolts, screws, etc. are formed by cold heading or hot heading process, and the rod size is adjusted by wire drawing process; nuts are formed by cold heading or machining process.
Thread Processing: Process threads by thread rolling or tapping process to ensure thread accuracy and finish.
Heat Treatment: Put the fasteners into a vacuum annealing furnace for annealing treatment to improve toughness and fatigue resistance.
Surface Treatment: Perform pickling, sandblasting, polishing or phosphating treatment according to requirements to improve corrosion resistance and assembly performance.
Quality Inspection: Conduct dimensional inspection, thread accuracy inspection, hardness test, corrosion resistance test, etc. After passing the inspection, package and leave the factory with quality inspection report attached.

Titanium Custom Machined Part Production Process

Demand Docking: Receive customer drawings or samples, and clarify product dimensions, performance, material, surface treatment and batch requirements.
Process Planning: Formulate a detailed processing technology plan according to customer requirements, and determine processing equipment, processes and parameters.
Raw Material Preparation: Select titanium or titanium alloy plates, bars and other raw materials that meet the requirements, and perform cutting and pretreatment.
Precision Machining: Process and form according to drawing requirements through CNC turning, milling, grinding, drilling, welding and other processes.
Heat Treatment and Surface Treatment: Perform vacuum annealing, solution aging and other heat treatments, as well as pickling, polishing and other surface treatments as needed.
Quality Inspection: Strictly conduct dimensional accuracy inspection, appearance inspection, performance testing, etc. according to customer drawing requirements to ensure the product meets the requirements.
Finished Product Packaging: Clean, dry and package the qualified products, with custom processing instructions, material inspection report and quality certificate attached.

Application Fields

Aerospace

Aerospace vehicle fluid pipeline flanges, aircraft engine fuel pipeline flanges, airframe hydraulic system connection flanges, relying on lightweight, high strength and high temperature resistance to adapt to extreme flight environments.

Marine Engineering

Offshore platform pipeline flanges, ship power system pipeline flanges, seawater desalination equipment pipeline connection flanges, with excellent seawater corrosion resistance, adapting to harsh marine environments.

Chemical Industry

Chemical reactor inlet and outlet flanges, acid-base conveying pipeline flanges, heat exchanger connection flanges, anti-corrosion pipeline system flanges, resistant to strong acid and alkali corrosion, ensuring stable and safe production.

Medical Devices

Artificial joint forgings, orthopedic fixation screws, surgical instrument custom parts, implantable medical device accessories, pure titanium has excellent biocompatibility and can fuse well with human tissues to promote healing.

High-End Equipment Manufacturing

Precision machine tool hydraulic system flanges, robot fluid pipeline flanges, high-speed train braking system pipeline flanges, with high dimensional accuracy and stable mechanical properties, improving equipment operation accuracy and reliability.

New Energy Field

Hydrogen energy equipment pipeline flanges, lithium battery production equipment fluid pipeline flanges, photovoltaic power station cooling system pipeline flanges, corrosion resistance and strong stability, adapting to the harsh production and operation environment of the new energy industry.

Send Inquiry

As a professional solution provider of titanium and titanium alloy flanges, fasteners and custom machined parts, Baoji Yunjie can supply you with a full range of metal flanges, fasteners, custom machined parts, pipes, rods/wires, plates, strips/foils such as titanium, zirconium, nickel, aluminum, tantalum, tungsten, cobalt, etc. Please feel free to contact us!