High Precision Titanium Forged Flange

Product Introduction 

High Precision Titanium Forged Flange for Critical Industrial Applications — Superior Corrosion Resistance & Precision Engineering

High Precision Titanium Forged Flange from Baoji Huacan New Metal Materials Co., Ltd. delivers exceptional performance in demanding industrial environments. The flanges are hot forged and CNC machined to dimensional tolerances of ±0.05 mm. Available in Grade 1, 2, 5, 7, 9 and 12 conforming to ASME B16.5, ASME B16.47, ASTM B381, EN 1092-1 and JIS B2220. We have over 10 years expertise in titanium machining, yearly capacity of more than 1000 tons, more than 40 precise CNC machines and handle OEM/ODM orders from prototype to mass production.

Product Specification & OEM Customization

Parameter	Specifications
Material Grades	Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, Grade 9, Grade 12
Applicable Standards	ASME B16.5, ASME B16.47, ASME B16.48, ASTM B381, EN 1092-1, JIS B2220 (depending on flange type and requirements)
Tensile Strength (Grade 5)	≥ 895 MPa
Yield Strength (Grade 5)	≥ 828 MPa
Density (Grade 5)	Approx. 4.43 g/cm³
Maximum Service Temperature	Application- and alloy-dependent; confirm based on operating conditions
Dimensional Tolerance	Up to ±0.05 mm, subject to drawing requirements and manufacturing feasibility
Sealing Face Roughness	Ra 3.2–6.3 μm as specified; Ra 0.8–1.6 μm available for high-precision applications
Material Condition	Annealed or hot-worked; ultrasonic testing available upon request
Surface Finish	Machined or polished; anodizing available upon request
Dimensions	Custom sizes manufactured according to customer drawings
Flange Types	Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, and other custom designs
Pressure Rating	Customized according to the applicable standard, pressure class, and operating conditions
Customization	Custom machining based on drawings, samples, or project specifications

Product Application

Offshore Oil & Gas: Used in deep-water risers and manifolds operating beyond 3,000m depth. Titanium's seawater immunity reduces wall thickness requirements and maintenance intervals significantly versus Super Duplex steel.

Aerospace Hydraulic Systems Grade 5 flanges are used to join hydraulic tubing and exhaust ducting when heat cycling from −50°C to 400°C and high frequency vibration need forged fatigue resistance and rigorous weight reductions.

Chemical & Desalination Plants: In chlor-alkali and brine processing settings, stainless steel readily pits. Titanium flanges are dependable transition connections between titanium pipe and industrial equipment, avoiding metallic corrosion from contaminating the fluid.

Medical & Energy Equipment: Wherever High Precision Titanium Forged Flange biocompatibility, corrosion resistance and structural durability are needed at the same time.

Why Choose Us

Titanium flanges address issues stainless steel just cannot. Steel rusts in salt water. High pressure situations, chloride loaded environments. Titanium loves it.

Our titanium flanges develop a passive oxide covering of TiO2 spontaneously which makes them resistant to chloride stress corrosion cracking (CSCC). They are resistant to pitting, crevice corrosion and erosion in high velocity fluid flows.

Grade 5 (Ti-6Al-4V) delivers tensile strength ≥895 MPa, with a density of just ~4.43 g/cm³ — about 55% lighter than alloy steel with same strength. This is very important in aeronautical and subsea engineering.

Each sealing face is precision-machined to provide excellent flatness and bolt-hole alignment, avoiding the danger of leaks in high pressure Class 1500 – 2500 applications.

Manufacturing Process

Production starts with high-purity titanium billets that meet the ASTM B381 chemical composition criteria. Each billet is hot forged on our 4000 ton hydraulic press, with grain flow in line with the curve of the flange for greater resistance to fatigue.

Post-forging heat treatment gives grain refinement and dimensional stability. Final tight tolerances and sealing surface polish are achieved by further CNC machining on 40+ state of the art machining centers.

Alpha Case — the brittle oxygen-enriched layer formed during high-temperature forging — is completely removed through machining. Microstructure analysis confirms its absence before any part proceeds to inspection.

Receiving Drawings

Annealing

Developing Machining Process

Finish Machining

Preparing Raw Materials

Deburring

Rough Machining

Deburring

Manufacturing Capability

Our Baoji facility operates 40+ CNC lathes, machining centers, and gantry systems dedicated to titanium components. Forging is performed on a 4,000-ton hydraulic press alongside air hammers and ring-rolling machines.

Annual forging capacity exceeds 3,000 tons. Annual melting capacity exceeds 5,000 tons through VAR and PAM furnace partners. We support prototype development through full-scale production runs.

melting	melting	forging	forging	rolling

Quality Control

All orders are protected by our multi-stage QC protocol:

Positive Material Identification (PMI) Based on XRF Verification of Raw Material Chemical Composition per ASTM B381 Limits including Hydrogen Content Maintained at 0.015% to Prevent Embrittlement

Ultrasonic Testing (UT): 100% volumetric examination to AMS 2631 Class A1 finds internal voids, forging bursts or inclusions not seen by surface inspection.

Dye Penetrant Inspection (DPI): used on machined surfaces to detect surface breaking fractures or laps.

CMM Dimensional Inspection: Coordinate Measuring Machines used for verification of sealing face flatness, bolt-hole position precision, bore perpendicularity and all GD&T criteria.

Microstructure Analysis Metallographic investigation of sacrificial coupons show elimination of Alpha Case and homogeneous grain structure.

Certifications

Baoji Huacan New Metal Materials Co., Ltd. has obtained the ISO 9001 Quality Management System Certification, which covers all aspects from raw material procurement to final distribution of products. Full material documentation includes Mill Test Reports (MTR) to EN 10204 3.1, chemical composition reports, mechanical property records and heat treatment status. EN 10204 3.2 third party witness documentation may be required.

Packaging & Shipping

Each flange is carefully protected for international transit:

· Custom foam inserts for individual component protection

· Vacuum-sealed bags with desiccants for moisture control

· Sturdy wooden crates for bulk shipments

· Full labeling with heat numbers, grade, and order details for easy traceability

We offer air freight for urgent orders and sea freight for cost-effective bulk delivery worldwide.

FAQ

Q: Why choose a forged titanium flange over a cast one?

A：Casting creates porosity and coarse grain structure, reducing fatigue strength. Forging eliminates voids and aligns grain flow — producing a significantly stronger, safer component for high-pressure service.

Q: Grade 2 or Grade 5 — which is right for my application?

A：Choose Grade 2 for maximum corrosion resistance and ductility in chemical processing. Choose Grade 5 (Ti-6Al-4V) when high tensile strength is the priority, such as aerospace or high-pressure subsea systems.

Q: How do I prevent galvanic corrosion when connecting titanium flanges to steel piping?

A：Titanium is more noble than steel. Use isolation kits — dielectric gaskets, sleeves, and washers — to electrically separate the product from any dissimilar metal in electrolyte-exposed environments.

Q: What documentation comes with shipment?

A：Each batch includes MTR to EN 10204 3.1, chemical composition certificates, mechanical test reports, heat treatment records, and dimensional inspection reports.

Q: Is Alpha Case removal confirmed?

A：Yes. Alpha Case removal is verified through microstructure analysis on every production batch before final inspection and shipment.

Contact Us

Ready to source reliable titanium flanges built to your exact specifications? Contact our team at sherry@hc-titanium.com for a fast response on your High Precision Titanium Forged Flange requirements.