Titanium Grade 5 Pipe | Ti-6Al-4V ASTM B861 Pipes & Tubes

Titanium Grade 5 (Ti-6Al-4V, UNS R56400) Seamless Pipes and Tubes to ASTM B861

Dinesh Tube India supplies and exports titanium Grade 5 pipes and tubes from Mumbai for high-pressure, hydraulic, offshore and weight-critical lines. Grade 5, also called Ti-6Al-4V (UNS R56400, Werkstoff 3.7165), is supplied as seamless pipe to ASTM B861 / ASME SB861, by NPS and schedule, with EN 10204 3.1 mill test certificates. OD-sized Grade 5 tube is supplied to order; see our Grade 5 tubes page.

Grade 5 is the high-strength titanium alloy: about 2.6 times as strong as Grade 2, at about 56% of the weight of steel. It is chosen for strength and weight, not for chemical corrosion. Grade 5 pipe is mostly seamless and made to order. For corrosion piping, see our titanium pipes page for Grade 2, 12 and 7.

Table of Contents

Specification & Sizes
Schedule & Weight Table
Grade 5 vs Grade 9 vs Grade 2
Chemical Composition
Mechanical Properties
When Grade 5 Pipe Makes Sense
Grade 5 Package
Applications
FAQs

Titanium Grade 5 Ti-6Al-4V seamless pipes to ASTM B861

Titanium Grade 5 Pipe Schedule and Weight Table

NPS	OD (mm)	Sch 10S Wall (mm)	Sch 10S kg/m	Sch 40S Wall (mm)	Sch 40S kg/m	Sch 80S Wall (mm)	Sch 80S kg/m
1/2"	21.34	2.11	0.56	2.77	0.72	3.73	0.91
3/4"	26.67	2.11	0.72	2.87	0.95	3.91	1.24
1"	33.40	2.77	1.18	3.38	1.41	4.55	1.83
1½"	48.26	2.77	1.75	3.68	2.28	5.08	3.05
2"	60.33	2.77	2.22	3.91	3.07	5.54	4.23
3"	88.90	3.05	3.64	5.49	6.37	7.62	8.62
4"	114.30	3.05	4.72	6.02	9.07	8.56	12.60
6"	168.28	3.40	7.80	7.11	15.95	10.97	24.02

Weight (kg/m) = (OD − wall) × wall × 0.01392, using Grade 5 density 4.43 g/cm³ (slightly lighter than CP titanium). Wall thicknesses per ASME B36.19.

Grade 5 vs Grade 9 vs Grade 2 Pipe

Point	Grade 2 (CP)	Grade 9 (Ti-3Al-2.5V)	Grade 5 (Ti-6Al-4V)
Min. tensile / yield	345 / 275 MPa	620 / 483 MPa	895 / 828 MPa
Min. elongation	20%	15%	10%
Formability and weldability	Excellent	Good	Fair; needs care
Chemical corrosion service	Excellent	Good	Fair
Main reason to choose	Corrosion at lowest cost	Strength with good formability (hydraulic tubing)	Highest strength-to-weight

Grade 9 is often the more practical choice for high-pressure tubing and lines that need bending; Grade 5 is chosen where the highest strength is required.

Titanium Grade 5 Pipe Chemical Composition (ASTM B861, %)

Element	Grade 5
Aluminium (Al)	5.5–6.75
Vanadium (V)	3.5–4.5
Iron (Fe), max	0.40
Oxygen (O), max	0.20
Carbon (C), max	0.08
Nitrogen (N), max	0.05
Hydrogen (H), max	0.015
Titanium (Ti)	Balance

Titanium Grade 5 Pipe Mechanical Properties (Minimum)

Tensile Strength	Yield Strength (0.2%)	Elongation	Density
895 MPa (130 ksi)	828 MPa (120 ksi)	10%	4.43 g/cm³ (0.160 lb/in³)

Check the current editions (ASTM B861-24, B862-23) and the mill certificate for governing values.

When Grade 5 Pipe Makes Sense

Good fit: high-pressure process, hydraulic and test lines, offshore and subsea systems, and weight-critical piping where wall thickness and weight must be minimised.
Usually not needed: seawater, chlorine and chemical piping at normal pressures, where Grade 2 or Grade 12 pipe costs less, resists corrosion better and is easier to weld and bend.
Not suitable: hydrofluoric acid, fluorides and dry chlorine gas.

Grade 5 Package

Grade 5 Fittings

WPT5 elbows, tees, reducers and caps to ASTM B363, formed or machined.

Grade 5 Flanges

F-5 weld neck, blind and slip-on flanges to ASTM B381.

Grade 5 Plate

Ti-6Al-4V sheet and plate to ASTM B265 (AMS 4911 on request).

Need Grade 5 titanium pipe or tube? Send the NPS or OD, schedule or wall, length, quantity and design pressure to kamlesh@dineshtube-india.com or call +91 83559 10913. You can also send an enquiry.

Welding and Fabrication

Welding: GTAW with full argon shielding, trailing shields and internal purge, using ERTi-5 filler (or ERTi-23 where higher weld ductility is needed). Weld procedures for Grade 5 need more care than for Grade 2.
Bending: Grade 5 has limited cold formability; use larger bend radii or hot bending, or choose Grade 9 for lines that need many bends.
Lead time: Grade 5 pipe is mostly made to order; plan for longer delivery than Grade 2.

Titanium Grade 5 Pipe Applications

High-pressure process and test lines
Hydraulic and high-pressure fluid lines
Offshore and subsea risers and systems
Marine and naval weight-critical piping
Motorsport and high-performance systems

High-pressure, offshore and marine uses of titanium Grade 5 pipes

Titanium Grade 5 Pipes: FAQs

Which standard covers titanium Grade 5 pipe?

Seamless titanium Grade 5 pipe is made to ASTM B861 (ASME SB861), which covers Grade 5 (Ti-6Al-4V) with minimum tensile 895 MPa and yield 828 MPa. Welded Grade 5 pipe to ASTM B862 is rarely made.

What is titanium Grade 5?

Titanium Grade 5, also called Ti-6Al-4V (UNS R56400, Werkstoff 3.7165), is a titanium alloy with about 6% aluminium and 4% vanadium. It is the strongest of the common titanium grades.

Do you supply Grade 5 pipes and tubes?

Yes. Grade 5 is supplied as seamless pipe by NPS and schedule, and as OD-sized tube to order. Both are mostly made to order, so send your sizes early.

Is Grade 5 pipe good for chemical service?

Grade 5 resists seawater well, but Grade 2, 12 or 7 pipe is better and cheaper for chemical, chlorine and hot-brine service. Grade 5 is chosen mainly for strength and low weight.

What is the difference between Grade 5 and Grade 9 pipe?

Grade 9 (Ti-3Al-2.5V) is weaker than Grade 5 (620 vs 895 MPa minimum tensile) but easier to form and bend, so it is widely used for high-pressure hydraulic tubing. Grade 5 is used where the highest strength is needed.

How much does titanium Grade 5 pipe weigh?

Weight in kg/m = (OD − wall) × wall × 0.01392, with OD and wall in mm. For example, 2" Sch 40S (60.33 × 3.91 mm) weighs about 3.07 kg/m.

What is the price of titanium Grade 5 pipe?

The price depends on NPS or OD, schedule or wall, length, quantity and certification. Send your requirement to kamlesh@dineshtube-india.com or call +91 83559 10913 for a current quote.

Export Destinations for Titanium Grade 5 Pipes

We supply titanium Grade 5 pipes and tubes across India to fabricators and engineering buyers in Maharashtra, Gujarat, Karnataka, Tamil Nadu and Telangana, and export to the Middle East (UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain), Asia (Japan, South Korea, Singapore, Malaysia, Vietnam), Africa (Egypt, Nigeria, South Africa) and Europe on request.

Titanium Grade 5 Pipes