ASTM B338 Titanium Gr2 Seamless Tubes

ASTM B338 titanium Gr2 seamless tubes is the CP2 titanium seamless tubes, they were produced based on the ASTM B338 standard. ASTM B338 standard specially used for seamless and welded titanium and titanium alloy tubes for condensers and heat exchangers. Based on their excellent corrosion resistance, conductivity, strength and processability, they were widely used in chemical industry, marine and even nuclear p ower fields.

Full specification table for foreign trade website, all data comply with international standards.

 

Category	Item	Specification & Details
Basic Information	Alloy Grade	Grade 2 (Commercially Pure Titanium / CP Ti)
	UNS Number	R50400
	Executive Standards	ASTM B338, ASTM B861, SAE AMS 4942, SAE AMS 4943, ISO 5832-2
	Product Type	Seamless Titanium Tube
Chemical Composition (wt%, Max)	Carbon (C)	0.08
	Iron (Fe)	0.30
	Oxygen (O)	0.25
	Nitrogen (N)	0.03
	Hydrogen (H)	0.015
	Other Elements (Single / Total)	0.10 / 0.40
	Titanium (Ti)	Balance
Mechanical Properties (Annealed, Room Temperature)	Tensile Strength	≥345 MPa (50 ksi)
	Yield Strength (0.2% Offset)	≥275 MPa (40 ksi)
	Elongation (50mm)	≥20%
	Density	4.51 g/cm³
	Elastic Modulus	Approx. 110 GPa
	Hardness	160–200 HB (HRB 80–90)
	Melting Point	Approx. 1665°C (3030°F)
Dimension & Tolerance	Outer Diameter (OD)	6 mm – 114 mm (0.236 in – 4.488 in)
	Wall Thickness (WT)	0.5 mm – 10 mm (0.020 in – 0.394 in)
	Standard Length	6 m (19.7 ft), custom length available
	OD Tolerance	±0.1 mm ~ ±0.3 mm (in accordance with ASTM B338)
	Wall Thickness Tolerance	±10% (in accordance with ASTM B338)
Surface & Processing Condition	Surface Finish	Pickled, Bright Annealed, Polished
	Material Condition	Annealed
	Pipe End Type	Plain End, Beveled End, Threaded End
Key Performance Features	Advantages	Superior corrosion resistance against acid, chloride and seawater; High strength-to-weight ratio; Good weldability and formability; Non-magnetic; Excellent biocompatibility
Main Applications	Application Fields	Heat exchangers, condensers; Chemical & petrochemical industry; Marine & offshore engineering; Desalination system; Aerospace; Medical equipment
Quality Inspection & Certification	Testing Items	Hydrostatic Test, Ultrasonic Testing (UT), Eddy Current Testing (ET)
	Quality Certification	ISO 9001, ISO 13485

 

 

1:Excellent corrosion resistance: Gr2 titanium tube has strong corrosion resistance in most oxidizing and neutral media (such as seawater, wet chlorine, nitric acid, sodium hypochlorite, chlorides). So It is especially suitable for use in condensers and heat exchangers in highly corrosive environments.

 

2:Stable heat transfer performance: Gr2 titanium tube has medium strength, thinner tube wall design can be used to compensate for heat conduction. Not easy to scale and corrode, no need for frequent cleaning, long-term operation with stable thermal efficiency. The heat exchange effect is better than stainless steel and other materials.

 

3:Long service life and low maintenance cost: Long-term service without pitting and intergranular corrosion problems, the working life can reach 15 to 25 years under harsh working conditions. The overall cost will lower than stainless steel and other alloy materials.

 

 

ASTM B338 titanium Gr2 seamless tubes Mainly used in the lining pipes of reactors in the chemical and petrochemical industries, seawater desalination devices, chemical heat exchangers, condensers, heater tube bundles, etc.

 

Q1:How does Gr2 titanium tube differ from other grades of titanium tube?
A1: The strength of Gr2 titanium tube is stronger and its formability is a little worse compared with Gr1, but higher formability than Gr5 Gr9 Ti alloy tube.

 

Q2: ASTM B861 vs B338 – What is the difference?
A2: There is a boring process inside the ASTM B338, then ultrasonic testing, and it is a tighter tolerance on the outside diameter. It is more suitable for pressure vessels and heat exchangers.

 

Q3: What are the welding and bending properties of Gr2 titanium tubes?

A3: Gr2 ASTM B338 titanium tube has good welding performance and is usually welded using argon gas protection.Gr2 titanium has good ductility and cold forming properties. It can be cold-bent, hot-bent.

 

 

We are a manufacturer with over 20 years experience in producing titanium tube. Manufacture, supply and quality control carry out strictly according to ISO9001 quality management system. We have advanced production equipment and strong production capacity. We have strong competitiveness in the market.

 

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