UNS R50400 Gr2 Seamless Tube

UNS R50400 gr2 titanium seamless pipe has strong corrosion resistance in more media, especially in neutral and oxidizing media, also can be used in some dilute reducing acid, such as room temperature until the boiling point of various concentrations of nitric acid corrosive environment. It has good corrosion resistance to most alkaline solutions, such as saturated solutions of barium hydroxide, calcium hydroxide and magnesium hydroxide at room temperature, but it cannot be used in boiling sodium hydroxide solution. Titanium is not corroded at all in seawater, and is also resistant to most organic acids (except formic acid and oxalic acid).

 

First-class UNS R50400 gr2 seamless titanium tube production process

 

Application	Typical Components	Advantages of GR2 Titanium
Heat Exchangers	Heat exchanger tubes, condenser tubes, cooling tubes	Excellent corrosion resistance, reliable heat transfer performance
Marine & Shipbuilding	Marine condensers, seawater cooling systems, ship piping	Outstanding seawater corrosion resistance
Desalination	Evaporator tubes, seawater treatment equipment	Excellent resistance to chloride and saltwater environments
Chemical Processing	Process piping, heat transfer equipment, reactors	High corrosion resistance and excellent weldability
Power Generation	Condenser tubes, cooling systems	Long service life and low maintenance requirements
Oil & Gas	Offshore equipment, heat exchanger systems	Lightweight and resistant to harsh environments

 

Common GR2 Titanium Tube Applications:

Shell & Tube Heat Exchangers

Marine Condensers

Seawater Cooling Systems

Desalination Equipment

Chemical Processing Equipment

Power Plant Condensers

 

Element	Maximum / Requirement (wt%)
Titanium (Ti)	Balance
Nitrogen (N)	≤ 0.03
Carbon (C)	≤ 0.08
Hydrogen (H)	≤ 0.015
Iron (Fe)	≤ 0.30
Oxygen (O)	≤ 0.25
Aluminum (Al)	-
Vanadium (V)	-
Other Elements (Each)	≤ 0.10
Other Elements (Total)	≤ 0.40

 

Property	Value
Density	4.51 g/cm³
Melting Point	1,668°C (3,034°F)
Thermal Conductivity	16.4 W/m·K
Electrical Resistivity	0.56 μΩ·m
Specific Heat Capacity	0.52 J/g·K
Modulus of Elasticity	105 GPa
Coefficient of Thermal Expansion	8.6 × 10⁻⁶ /°C

 

Property	Requirement
Tensile Strength	≥ 345 MPa
Yield Strength (0.2% Offset)	275–450 MPa
Elongation	≥ 20%
Reduction of Area	≥ 30%
Hardness (Typical)	≤ 25 HRC
Condition	Annealed

 

Feature	GR2 Titanium Tube	316L Stainless Steel Tube
Material Type	Commercial Pure Titanium	Austenitic Stainless Steel
Corrosion Resistance	Excellent, especially in seawater and chloride environments	Very Good
Seawater Resistance	Excellent	Limited compared with titanium
Weight	Lower density	Higher density
Service Life	Very Long	Long
Initial Cost	Higher	Lower
Maintenance Cost	Lower	Higher in aggressive environments
Typical Applications	Marine heat exchangers, desalination, offshore systems	General chemical, food, pharmaceutical equipment

 

How to choose:
For seawater, desalination, and chloride-rich environments, GR2 titanium tube is usually preferred due to its superior corrosion resistance and longer service life.

 

Is Grade 2 titanium bulletproof?

In the end, titanium is bulletproof for the most part against bullets fired from guns that one would likely find on the shooting range, on the street or on the hunt in the mountains. Most guns legally bought and owned by individuals will likely not penetrate titanium.

 

Does grade 2 titanium heal?

It scratches easier than stainless steel, but many like to say it "self heals" because over time it'll reform an oxide layer over the scratches diminishing their significance. It also refinishes/buffs easier than stainless steel.

 

What is the difference between GR1 and GR2 Titanium Tube?

The main difference between GR1 and GR2 titanium tubes is mechanical strength.

Grade	Main Characteristics	Typical Applications
GR1 Titanium Tube	Higher ductility and excellent formability	Chemical equipment, medical applications, low-pressure systems
GR2 Titanium Tube	Higher strength with excellent corrosion resistance	Heat exchangers, condensers, marine and industrial systems

For most industrial heat exchanger and pressure-related applications, GR2 titanium tube is the preferred choice.

 

Can you supply custom GR2 Titanium Tube sizes?

Yes. We support customized production for:

Non-standard outside diameter

Special wall thickness

Custom lengths

U-bend tubes

Precision titanium tubes

Please provide your required dimensions, quantity, and application details for technical evaluation.

 

 

 

Equipment	Function	Engineering Purpose
Vacuum Arc Remelting (VAR) Furnace	Produces high-purity titanium ingots	Ensures stable chemical composition for UNS R50400 Grade 2 titanium
Hot Extrusion Press	Forms titanium billets into tube blanks	Provides uniform grain structure and base tube geometry
Cold Rolling Mill	Reduces wall thickness and improves precision	Enhances dimensional accuracy and mechanical strength
Cold Drawing Machine	Refines OD/WT and surface quality	Achieves tight tolerances for heat exchanger tubes
Bright Annealing Furnace	Controlled heat treatment process	Produces fully annealed condition for Grade 2 titanium tubes
Straightening Machine	Corrects tube bending and deformation	Ensures installation-ready straightness for tube bundles
Precision Cutting Machine	Fixed and custom length cutting	Supports engineering drawing requirements
Chamfering & End Finishing Machine	Tube end processing	Ensures proper fit-up in tube sheets and welding preparation

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