Titanium Grade 10 Round Bar
➡️ Ti-11.5Mo-6Zr-4.5Sn | UNS R58030 / R56410 | EN 3.7154
➡️ ASTM, EN, JIS & International Standards
➡️ Supply Conditions
➡️ Multiple Diameters & Supply Lengths
➡️ Global Export & International Delivery
Country of Origin:
Europe, Japan, USA
Material Type:
Titanium
UNS Number:
R58030 / R56410
Wr. No.:
3.7154
MTC Available:
EN 10204 3.1
Product Description for Titanium Grade 10 Round Bar
Titanium Grade 10 Round Bar refers to Ti-11.5Mo-6Zr-4.5Sn, the metastable beta alloy known as Beta III, with UNS number R58030. It was listed as Grade 10 in older ASTM titanium standards, but current ASTM B348 no longer includes it, so bar is ordered to AMS specifications.
After solution treatment, the alloy keeps a fully beta structure at room temperature. In this state it is soft and can be cold headed, rolled and bent. Ageing then precipitates fine alpha phase, which raises strength sharply.
The alloy is non-magnetic and has good corrosion resistance. Availability is limited, so buyers should confirm supply before designing around it. Beta III is a metastable beta alloy, which means it can be cold formed like a soft metal after solution treatment and then aged to very high strength. It has a lower elastic modulus than alpha-beta alloys, which gives it high spring-back, useful for springs and clips. A well-known use is in orthodontic archwires, where beta titanium wire of this composition gives a gentle, steady force. In aerospace, it has been used for rivets, fasteners and springs that must be formed cold and then strengthened. Its higher density, about 5.0 g/cm³, is a trade-off against its formability. Engineers usually choose it when a part must be shaped cold and then made very strong, for example a spring clip or a formed rivet. For most other high-strength parts, Grade 5 is more available and better documented. Wire and small bar sizes are the most common forms. Check stock early.
Common Applications of Titanium Grade 10 Round Bar
➡️ Machined shafts, spindles, valve stems, pump sleeves and pins for food, beverage, dairy and pharmaceutical equipment, where the passive chromium oxide film resists both product acids and caustic clean-in-place chemicals.
➡️ Fasteners, studs, bolts, threaded rod and anchor components produced from bar stock, chosen for corrosion resistance combined with the ductility needed for cold heading and thread rolling.
➡️ Chemical, water treatment and general process plant parts such as agitator shafts, flange blanks, nozzles and support components handling water, steam and mildly corrosive media free of significant chlorides.
➡️ Architectural and structural hardware including handrail stanchions, balustrade fittings, tension rods and bollards, where a bright ground or polished bar finish provides both appearance and low maintenance.
International Equivalent Grade for Ti Grade 10 Round Bar
Standard
Country / Region
Grade
AMS (Ti-10V-2Fe-3Al)
USA
AMS 4983 / 4984 / 4987
AMS (Ti-11.5Mo-6Zr-4.5Sn)
USA
AMS 4977 / 4980, MIL-T-9047
UNS
USA
UNS R58030 / R56410
EN
Europe
EN 3.7154
GB/T
China
TB6 (Ti-10V-2Fe-3Al)
Technical Specification for Titanium Grade 10 Round Bar
Specification
Value
Unit
Material
Titanium
-
Grade
Grade 10 / Beta III / R58030
-
Standard
AMS 4977 / AMS 4980
-
Product Form
Round bar
-
Diameter (supply range)
6–300
mm
Length (random)
1–6
m
Manufacturing Process
Hot rolled or forged, then annealed and finished
-
Production Route
VAR (vacuum arc remelting) or EB / plasma cold hearth melting
-
Surface Finish
Descaled, turned, ground or polished
-
Heat Treatment / Delivery Condition
Solution treated
-
Tolerance Standard
Per ASTM B348 tolerance tables or as agreed
-
Density
5.06
g/cm³
Thermal Conductivity at 20°C
-
W/m·K
Coefficient of Thermal Expansion 20–100°C
8.5
µm/m·K
Modulus of Elasticity at 20°C
83 (solution treated)
GPa
Magnetic Properties
Non-magnetic
-
Testing / Inspection
Chemical analysis incl. interstitials, tensile, dimensional, UT on request
-
Certification
EN 10204 3.1 mill test certificate
-
Technical Specifications
Get the key technical specifications for Titanium Grade 10 Round Bar
Titanium Grade 10 Round Bar is ordered to AMS specifications for Ti-11.5Mo-6Zr-4.5Sn. Current ASTM B348 does not list it.
Bars are delivered solution treated. Physical data are reference values: density about 5.0 g/cm³ and a modulus lower than alpha-beta alloys.
Because Grade 10 was removed from ASTM B348, bar and wire are ordered to AMS specifications for Ti-11.5Mo-6Zr-4.5Sn, such as AMS 4977 and AMS 4980, which cover different product forms and conditions. The order should state the specification, the delivery condition (usually solution treated) and whether test pieces must be aged to prove the required strength. Ageing is usually done at about 480–540°C for several hours, and the exact cycle depends on the strength required and the section size. Because supply is limited, confirm availability, minimum quantities and lead times with the mill before committing to a design.
Ageing is done after forming or machining, usually at about 480–540°C. The ordered AMS document sets which condition is delivered and which test pieces must be aged to prove the required strength. Tolerances follow the AMS document or agreed limits. Lead times can be long.
Chemical Composition for Titanium Grade 10 Round Bar
Element
Symbol
Min
Max
Unit
Molybdenum
Mo
10.0
13.0
%
Zirconium
Zr
4.5
7.5
%
Tin
Sn
3.75
5.25
%
Iron
Fe
-
0.35
%
Oxygen
O
-
0.18
%
Carbon
C
-
0.10
%
Nitrogen
N
-
0.05
%
Hydrogen
H
-
0.020
%
Titanium
Ti
Balance
-
%
Chemical Composition
View the chemical composition and applicable material limits for Ti Grade 10 Round Bar
The table shows commonly published limits for Beta III. The ordered AMS specification governs the exact values. Molybdenum at 10–13% is the main beta stabiliser. It keeps the high-temperature beta phase stable at room temperature after solution treatment, which gives the soft, formable condition. Zirconium at 4.5–7.5% and tin at 3.75–5.25% are neutral elements that strengthen the alloy and control how quickly alpha phase forms during ageing. Controlling this ageing response is what allows high strength without brittleness. Oxygen is limited to about 0.18% and hydrogen to about 0.020%. The high molybdenum content is also why the alloy is denser than most titanium grades and has good resistance to reducing acids.
Iron is held to 0.35% maximum, carbon to 0.10% and nitrogen to 0.05%. Because the alloy contains no aluminium, it avoids the brittle Ti3Al phase that limits some alpha alloys.
The certificate should report every limit in the ordered AMS document, including hydrogen, which is tested by laboratory methods. Molybdenum also improves resistance to reducing acids, which is why beta alloys of this type resist dilute hydrochloric acid better than Grade 2. Tin and zirconium have little effect on corrosion.
Mechanical Properties for Titanium Grade 10 Round Bar
Mechanical Property
Value
Unit
Tensile Strength (solution treated)
690–830
MPa
Tensile Strength (solution treated and aged)
1240–1380
MPa
Elongation (solution treated)
20
%
Mechanical Properties
Check the key mechanical properties and performance requirements of Ti Grade 10 Round Bar
The table gives reference values for solution-treated and aged Beta III, for guidance only. The table values are reference figures, not specification minimums. In the solution-treated condition, Beta III has tensile strength of about 690–830 MPa with good elongation and a low elastic modulus, which suits cold heading, rolling and bending. After ageing, tensile strength of about 1240–1380 MPa can be reached, with reduced ductility. The exact values depend on section size and ageing cycle. For springs, relaxation and fatigue data should be taken from the producer. Buyers should use the minimums in the ordered AMS specification for design and acceptance, and test aged samples from each lot.
For springs, the low modulus in the solution-treated state gives a large elastic range, and relaxation data at the service temperature should be taken from the producer.
Ageing response also depends on prior cold work, so formed parts may age faster than straight bar. Test aged samples from every lot, taken from the same bar and aged with the parts. Over-ageing lowers strength, while under-ageing leaves the part too soft, so the cycle must be controlled.
Dimension / Sizes for Titanium Grade 10 Round Bar
Dimension / Size
Value
Unit
Available Diameter Range (supply capability)
6–100 (limited availability)
mm
Standard Length (random)
1–6
m
Custom / Cut-to-Length
Available on request
-
Diameter Tolerance
Per AMS 4977 / AMS 4980
-
Length Tolerance
Per ordered standard or as agreed (commonly +50 / -0 mm for cut lengths)
-
Straightness Tolerance
Per ordered specification
-
End Condition
Saw cut square, chamfered or as ordered
-
Surface Finish
Descaled, sandblasted, pickled, rough turned, turned, centreless ground or polished
-
Dimensions & Sizes
Explore available diameters, lengths, and dimensional requirements for Ti Grade 10 Round Bar
Pricing for Titanium Grade 10 Round Bar
Round Bar Prices are generally quoted per kilograms or meters tonnes and can fluctuate with the global raw material and market prices. The final price will depend on a variety of factors, including the grade size, diameter, length, surface finish, the quantity and whether the bars are cut to length or in standard lengths.
For smaller quantities, we can also quote per metre or per piece basis once the required dimensions have been confirmed. Container-loads or orders that are larger in size are typically priced per tonne, based upon the specifications required and the supply conditions.
Please provide your desired dimensions, grades, length number, and end for a current quote including the lead time applicable and details for certification.
Pricing
Get current Titanium Grade 10 Round Bar pricing based on size, quantity, grade, finish, and delivery requirements.
Why Choose Us
Euro Steel Bars is an international distributor, stockist and exporter of stainless round steel bars that cover carbon, stainless alloy, special grades. We stock a variety of sizes and grades. We guarantee every order with mill test certificates as well as full quality-assurance documentation. Our name speaks to our roots: European-sourced materials that is backed by the certificates and rigor that buyers from Asia as well as the Gulf and Africa are looking for.
Each bar we deliver is accompanied by EN 10204 3.1 mill test certificates as well as complete documentation of quality, so what you receive corresponds to what’s written in the documents. We carry a selection of sizes and grades ready for transport, and cut length upon the request of customers, which results in quicker lead times, whether you’re ordering just a one-off spec or a complete project tonnage.
We operate an actual wholesale business that is that is supported with an internationally-operated supply chain therefore we are able to serve fabricators sourcing one grade the same way in the same way as an EPC contractor who is placing a large order. Our clients include manufacturers, fabricators EPC construction companies, engineers oil and gas projects as well as construction companies. we design our inventory as well as documentation to show what buyers need to bring projects forward.
Our customers trust us across Qatar, Oman, Bahrain, Kuwait, Jordan, Malaysia, Singapore, Thailand, Taiwan, Turkey, Italy and South Africa. If you’re looking to source an Gulf energy project, or a construction project within Southeast Asia, you get the same quality of certified material, the exact documentation, and the exact delivery procedure.
Frequently Asked Questions
Should I choose Titanium Grade 10 (Beta III) or Grade 5?
Why is Beta III used for orthodontic wires?
Can Grade 10 be cold formed?
Is Titanium Grade 10 still available?
How is Beta III heat treated, welded and machined?
What are the limits of Titanium Grade 10?
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