Boze Titanium Manufacturing Center | CP Titanium Grade

Grade 2 – Commercially Pure Titanium Grade 2

Commercially Pure Titanium Grade 2 (UNS R50400) — the workhorse CP titanium grade offering an optimal balance of mechanical strength, ductility, corrosion resistance, and weldability. The most commonly specified CP grade for industrial applications worldwide.

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Entity Definition

What is Grade 2 Titanium?

Grade 2 is the most commonly specified commercially pure titanium grade, offering a balanced combination of strength, ductility, corrosion resistance, and weldability. It accounts for the majority of CP titanium usage in industrial applications and is often considered the baseline grade for titanium material selection.

Classification

Commercially Pure Titanium (Alpha Phase)
UNS Number

UNS R50400

Common Names

CP-Ti Grade 2 UNS R50400 Ti Grade 2 ASTM B265 Grade 2 Ti-2

Key Characteristics

  • Most widely used CP titanium grade — industry baseline for many applications
  • Excellent corrosion resistance in seawater, chlorides, and oxidizing acids
  • Good balance of strength and formability for fabrication
  • Excellent weldability — no post-weld heat treatment typically required
  • Biocompatible and non-magnetic
Applicable Standards

Applicable Standards

Grade 2 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 4902 — Sheet, Strip, and Plate (Commercially Pure Titanium)
AMS 4928 — Bars and Wire
ISO 5832-2 — Implants for Surgery
DIN 17850 — Titanium Grade 2 (Ti 2)
NACE MR0175 / ISO 15156 — Sulfide Stress Cracking Resistant Materials for Oilfield Equipment
Material Properties

Mechanical & Physical Properties

Typical room-temperature properties for Grade 2 titanium (annealed condition):

Tensile Strength (min) 345 MPa (50 ksi)
Yield Strength 0.2% Offset (min) 275 MPa (40 ksi)
Elongation (min) 20%
Reduction of Area 30%
Hardness (HRB) ≤ 80 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)
Max Service Temperature (Reducing) 260°C (500°F)
Processing Methods

Available Processing Methods

Grade 2 titanium can be processed using the following manufacturing techniques:

Cold forming — Good; moderate deformation possible without intermediate annealing
Hot forming — Readily formable at 260–540°C (500–1,000°F)
CNC machining — Fair; requires sharp carbide tools and adequate coolant flow
TIG welding — Excellent; most common joining method for CP titanium
Laser welding — Good weld quality with inert gas shielding on both sides
Resistance welding — Suitable for spot welding with proper process control
Forging — Open and closed-die forging at 870–980°C (1,600–1,800°F)
Extrusion — Hot extrusion at 900–1,050°C using glass lubricants
Chemical etching / pickling — Good response to HF/HNO₃ solutions
Anodizing — Type II and Type III anodizing for corrosion and wear protection
Downstream Products

Typical Products & Components

Grade 2 titanium is commonly fabricated into the following downstream products:

Chemical processing equipment — reactors, columns, heat exchangers
Seawater piping systems and marine risers
Desalination plant evaporator shells and tubing
Ball valves, gate valves, and butterfly valve bodies
Pump casings and impellers for corrosive service
Heat exchanger tube sheets and tube bundles
Architectural cladding, roofing panels, and curtain wall systems
Automotive exhaust components
Medical implants (non-load-bearing) per ISO 5832-2
Electrochemical cells and anodes
Industries

Primary Industries

Grade 2 titanium serves as a material of choice across these industries:

Chemical processing — Process vessels, piping, heat exchangers for corrosive media
Marine & offshore — Seawater cooling systems, ballast piping, fire mains
Desalination — Thermal and membrane-based desalination equipment
Oil & gas — Topside piping, heat exchangers, produced water treatment
Architecture — Building facades, roofing, coastal infrastructure
Medical — Surgical instruments, non-load-bearing implants
Pulp & paper — Bleaching towers, washer drums, chemical mixers
Power generation — Condenser tubing, FGD scrubber internals
Alternative Materials

Alternative Materials

Depending on application requirements, Grade 2 may be substituted by:

Grade 1 (CP-Ti) — Higher formability, lower strength than Grade 2
Grade 3 (CP-Ti) — Higher strength, less ductility than Grade 2
Grade 12 (Ti-0.3Mo-0.8Ni) — Superior corrosion resistance in reducing environments
316L Stainless Steel — Lower cost but susceptible to chloride stress corrosion cracking
Super Duplex Stainless Steel (UNS S32750) — Higher strength alternative with good corrosion resistance
Nickel Alloy 625 — Better high-temperature strength and corrosion resistance at higher cost
Technical Reference Data

Comparison Table

Mechanical properties of our core titanium grades. All values represent minimum specified properties per ASTM B265 / AMS 4928 standards.

Titanium Grade Spec Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HV) Primary Advantage
Grade 1 CP-Ti ASTM B265 ≥ 240 ≥ 170 ≥ 24 ~ 120 Maximum formability & corrosion resistance
Grade 2 CP-Ti ASTM B265 ≥ 345 ≥ 275 ≥ 20 ~ 145 Best general-purpose CP balance
Grade 4 CP-Ti ASTM B265 ≥ 550 ≥ 483 ≥ 15 ~ 265 Highest strength CP grade

* All values are minimum specified properties at room temperature per applicable ASTM/AMS standards. Hardness values are approximate Vickers (HV). Consult our engineering team for application-specific data.

Why Boze Titanium Manufacturing Center

Why Choose Us for This Grade

Boze Titanium Manufacturing Center is a trusted manufacturer of Grade 2 commercially pure titanium components for the chemical processing, marine, oil & gas, and architectural industries. Our facility processes certified CP-Ti stock through 5-axis CNC milling, precision turning, and custom fabrication. Every component is backed by full material traceability, MTR documentation, and CMM inspection. Our engineering team provides 24-hour DFM review and competitive quoting for industrial and marine applications.

Frequently Asked Questions

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

What is Grade 2 titanium and why is it the most widely used commercially pure grade?

Grade 2 is the most commonly specified commercially pure titanium grade, offering an optimal balance of strength, ductility, corrosion resistance, and weldability. It is the default choice for industrial applications requiring excellent seawater corrosion resistance, good formability, and moderate strength.

Can you machine Grade 2 titanium into custom industrial components?

Yes. We machine Grade 2 CP-Titanium on our 5-axis CNC centers and precision turning machines. Grade 2 offers good machinability for a titanium alloy. We achieve tolerances up to ±0.005 mm with excellent surface finishes for chemical processing, marine, and industrial components.

What documentation do you provide with Grade 2 titanium parts?

Every order includes EN 10204 Type 3.1 Material Test Reports (MTRs) documenting chemical composition and mechanical properties per ASTM B265. CMM dimensional inspection reports and NDT (ultrasonic/penetrant) testing are available upon request.

Related Components

65 precision CNC machined components manufactured from Grade 2 - Commercially Pure Titanium

Titanium Air Sparger Pipe

Perforated air agitation sparger pipe

CNC machining CP Ti for tank hardware geometryTIG welding Ti filler with 0.5mm corner radiusPickling and passivation with 0.5mm corner radiusContinuity test <1 mOhm with 0.5mm corner radius

Titanium Anode Basket Bottom Plate

Double-layer micro-perforated anode basket bottom

CNC machining CP Ti for anode system geometryTIG welding Ti filler with SPC samplingPickling and passivation with SPC samplingContinuity test <1 mOhm with SPC sampling

Titanium Anode Basket (Expanded Mesh)

Expanded mesh anode basket for electroplating

CNC machining CP Ti for anode system geometryTIG welding Ti filler with SPC samplingPickling and passivation with SPC samplingContinuity test <1 mOhm with SPC sampling

Titanium Anode Basket Stiffener Rib

Reinforced side stiffener rib for anode basket

CNC machining CP Ti for anode system geometryTIG welding Ti filler with SPC samplingPickling and passivation with SPC samplingContinuity test <1 mOhm with SPC sampling

Titanium Anode Basket Hook

Solid rectangular knife hook busbar for anode

CNC machining CP Ti for anode system geometryTIG welding Ti filler with Class 6g gaugePickling and passivation with Class 6g gaugeContinuity test <1 mOhm with Class 6g gauge

Titanium Ball Valve Stem

Ball valve stem (Grade 5) for chemical valve

Hot forming plate rolling for valve component geometryCNC corrosion allowance with Class 6g gaugeTIG welding Grade 2 with Class 6g gaugeHydrostatic shell test with Class 6g gauge
View All 65 Components →

Need Grade 2 Components?

Our engineering team delivers precision-machined components in Grade 2. 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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