Boze Titanium Manufacturing Center | CP Titanium Grade

Grade 3 – Commercially Pure Titanium Grade 3

Commercially Pure Titanium Grade 3 (UNS R50550) — a medium-strength CP grade offering higher tensile strength than Grade 2 while retaining good fabricability and excellent corrosion resistance for demanding industrial environments.

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Entity Definition

What is Grade 3 Titanium?

Grade 3 is a medium-strength commercially pure titanium grade positioned between Grade 2 and Grade 4 in the CP family. It offers significantly higher tensile strength than Grade 2 while retaining good ductility and the excellent corrosion resistance characteristic of unalloyed titanium.

Classification

Commercially Pure Titanium (Alpha Phase)
UNS Number

UNS R50550

Common Names

CP-Ti Grade 3 UNS R50550 Ti Grade 3 ASTM B265 Grade 3

Key Characteristics

  • Higher strength than Grade 2 with moderate formability
  • Excellent corrosion resistance in oxidizing environments
  • Good weldability with proper shielding
  • Suitable for moderately loaded structural applications
  • Non-magnetic and biocompatible
Applicable Standards

Applicable Standards

Grade 3 titanium conforms to the following international material standards:

ASTM B265 — Sheet, Strip, and Plate
ASTM B348 — Bars and Billets
ASTM B381 — Forgings
ASTM B861 — Seamless Pipe
ASTM B862 — Welded Pipe
AMS 4900 — Sheet, Strip, and Plate (Commercially Pure Titanium)
DIN 17850 — Titanium Grade 3 (Ti 3)
NACE MR0175 / ISO 15156 — Oilfield Equipment
Material Properties

Mechanical & Physical Properties

Typical room-temperature properties for Grade 3 titanium (annealed condition):

Tensile Strength (min) 450 MPa (65 ksi)
Yield Strength 0.2% Offset (min) 380 MPa (55 ksi)
Elongation (min) 18%
Reduction of Area 30%
Hardness (HRB) ≤ 90 HRB
Density 4.51 g/cm³ (0.163 lb/in³)
Elastic Modulus 105 GPa (15.2 × 10⁶ psi)
Melting Point 1,668°C (3,034°F)
Thermal Conductivity 17 W/(m·K)
Electrical Resistivity 55 µΩ·cm
Max Service Temperature (Oxidizing) 316°C (600°F)
Processing Methods

Available Processing Methods

Grade 3 titanium can be processed using the following manufacturing techniques:

Cold forming — Moderate; requires more force than Grade 2; intermediate annealing may be needed
Hot forming — Readily formable at 260–540°C (500–1,000°F)
CNC machining — Fair; similar to other CP grades with work hardening tendency
TIG welding — Good; post-weld stress relief recommended for highly restrained joints
Laser welding — Good quality with proper gas shielding
Forging — Open and closed-die forging at 870–980°C (1,600–1,800°F)
Extrusion — Hot extrusion with glass lubrication at 900–1,050°C
Rolling — Hot and cold rolling with intermediate annealing
Chemical pickling — Good response to standard HF/HNO₃ solutions
Downstream Products

Typical Products & Components

Grade 3 titanium is commonly fabricated into the following downstream products:

Chemical processing columns and reactor vessels requiring higher strength than Grade 2
Heat exchanger shells and tube sheets
Seawater piping and fittings for offshore platforms
Valve bodies and pump components for moderate pressure service
Centrifuge baskets and filter components
Architectural structural supports and fasteners
Marine propeller shafts and rudder assemblies
Electrochemical cell components
Industries

Primary Industries

Grade 3 titanium serves as a material of choice across these industries:

Chemical processing — Vessels and piping requiring higher pressure ratings
Marine — Structural components, propeller shafts, seawater systems
Oil & gas — Produced water treatment, piping systems
Desalination — Pump casings, high-pressure piping
Aerospace (limited) — Non-critical structural components
Pulp & paper — Chemical handling equipment
Power generation — Heat exchanger and condenser components
Alternative Materials

Alternative Materials

Depending on application requirements, Grade 3 may be substituted by:

Grade 2 (CP-Ti) — Lower strength, better formability
Grade 4 (CP-Ti) — Higher strength, lower ductility
Grade 5 (Ti-6Al-4V) — Significantly higher strength at the cost of corrosion resistance in some environments
316L Stainless Steel — Lower cost but inferior chloride resistance
Duplex 2205 Stainless Steel — Higher strength alternative for pressure-containing equipment
Why Boze Titanium Manufacturing Center

Why Choose Us for This Grade

Boze Titanium Manufacturing Center manufactures precision Grade 3 CP-Titanium components for industrial applications. Our facility processes certified stock through multi-axis CNC machining and fabrication, backed by full material traceability with EN 10204 Type 3.1 MTRs.

Frequently Asked Questions

Common questions from engineers about this titanium grade and our precision machining capabilities.

What is Grade 3 titanium and how does it compare to Grade 2?

Grade 3 is a medium-strength CP titanium grade between Grade 2 and Grade 4. It offers significantly higher tensile strength than Grade 2 while maintaining good ductility and the excellent corrosion resistance of unalloyed titanium.

What tolerances can you achieve on Grade 3 titanium parts?

We achieve machining tolerances up to ±0.005 mm on Grade 3 CP-Titanium components using our multi-axis CNC machining centers.

Which industries typically specify Grade 3 titanium?

Grade 3 is used in chemical processing vessels requiring higher strength than Grade 2, marine components for offshore platforms, oil & gas production water handling, and desalination pump housings.

Need Grade 3 Components?

Our engineering team delivers precision-machined components in Grade 3. Submit your RFQ for a competitive quote within 24–48 hours.

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Audience-first guidance

Guidance for the professionals who specify titanium

Role-specific answers and resources for engineers and buyers in this industry.

Design engineering Quality & compliance Procurement

Common questions from this audience

How do I choose the right titanium grade?

Selection depends on strength, corrosion resistance, formability and application — CP grades for corrosion, alpha-beta alloys like Ti-6Al-4V for strength, and ELI grades for medical.

Which titanium grade is best for medical implants?

Ti-6Al-4V ELI (Grade 23) per ASTM F136 is the most common implantable grade for its strength and biocompatibility.

What certifications accompany titanium material?

Mill test certificates (ASTM, AMS), EN 10204 3.1 reports and full lot traceability are provided with every shipment.

Related resources

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About Boze Titanium Manufacturing Center

One Metal. One Focus. Infinite Precision.

Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.

Boze Titanium Manufacturing Center is operated by Baoji Boze Metal Products Co., Ltd.

AS9100D ISO 13485 ISO 9001 500+ Clients 15+ Years OEM/ODM
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