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Bright-finished ASTM B348 titanium round bars on a worktable

ASTM B348 Titanium Bar

Source ASTM B348 titanium bar in commercially pure and alloy grades, with cut-to-size supply, inspection and material traceability.

Material: Grades 1, 2, 3, 4, 5, 7, 9, 12 and 23, subject to order requirements
Standard: ASTM B348 / ASME SB348
Supply: Hot rolled, forged, annealed, peeled or ground depending on grade and diameter
Documents: MTC, inspection and heat/lot traceability

Product Detail

Product Introduction

Source ASTM B348 titanium bar in commercially pure and alloy grades, with cut-to-size supply, inspection and material traceability. Final supply is controlled by the grade, specification revision, dimensions, condition, tolerance, inspection and documentation stated on the approved order.

How should an ASTM B348 titanium bar grade be selected?

Selection answer: Choose the grade from the required strength, fabrication, corrosion and end use. Grade 2 is a common commercially pure baseline, Grade 5 is strength-led, Grade 7 is palladium-bearing for corrosion-selected service, and Grade 23 is Ti-6Al-4V ELI under its applicable specification.

Selection boundary: Do not substitute ASTM B348 Grade 23 / UNS R56407, ASTM F136 / UNS R56401 or an aerospace bar specification based only on Ti-6Al-4V ELI naming. The governing standard, condition, testing and certificate system determine acceptance.

RFQ data to confirm: Send alloy grade, specification and revision, form, diameter or section, length, tolerances, condition, machining allowance, application, NDT, MTC and traceability for RFQ review.

Product Specifications

Product	ASTM B348 Titanium Bar	Grade	Grades 1, 2, 3, 4, 5, 7, 9, 12 and 23, subject to order requirements
Standard	ASTM B348/B348M covers annealed titanium and titanium-alloy bars and billets across multiple grades. It is not a single alloy designation. State the standard revision, exact grade and UNS where required, bar or billet form, cross-section, dimensions, tolerances, condition, surface, straightness and supplementary inspection.	Size & Form	Round bar and rod in mill or cut lengths; diameter and length are confirmed by RFQ
Tolerance	ASTM B348 or customer drawing; precision grinding is available after review	Supply Condition	Hot rolled, forged, annealed, peeled or ground depending on grade and diameter
Inspection	Material test certificate, dimensional and surface inspection, heat/lot traceability; PMI or UT when specified	Documents	MTC, heat/lot traceability and agreed inspection reports

Send the complete material RFQ
Include grade, specification revision, dimensions, tolerance, quantity, condition, tests and destination.

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Chemical Composition

Weight percent; maximum unless a range is shown. Titanium is the balance. The ordered specification and grade control.

Grade / UNS	Principal Alloying Elements	Fe max	O max	C max	N max	H max	Ti
Grade 1 / R50250	—	0.20	0.18	0.08	0.03	0.015	Balance
Grade 2 / R50400	—	0.30	0.25	0.08	0.03	0.015	Balance
Grade 3 / R50550	—	0.30	0.35	0.08	0.05	0.015	Balance
Grade 4 / R50700	—	0.50	0.40	0.08	0.05	0.015	Balance
Grade 5 / R56400	Al 5.50–6.75; V 3.50–4.50	0.40	0.20	0.08	0.05	0.015	Balance
Grade 6 / R54520	Al 4.00–6.00; Sn 2.00–3.00	0.50	0.20	0.08	0.05	0.015	Balance
Grade 7 / R52400	Pd 0.12–0.25	0.30	0.25	0.08	0.03	0.015	Balance
Grade 9 / R56320	Al 2.50–3.50; V 2.00–3.00	0.25	0.15	0.08	0.03	0.015	Balance
Grade 12 / R53400	Mo 0.20–0.40; Ni 0.60–0.90	0.30	0.25	0.08	0.03	0.015	Balance
Grade 11 / R52250	Pd 0.12–0.25	0.20	0.18	0.08	0.03	0.0125	Balance
Grade 16 / R52402	Pd 0.04–0.08	0.30	0.25	0.08	0.03	0.015	Balance
Grade 17 / R52252	Pd 0.04–0.08	0.20	0.18	0.08	0.03	0.0125	Balance
Grade 19 / R58640	Al 3.00–4.00; V 7.50–8.50; Cr 5.50–6.50; Mo 3.50–4.50; Zr 3.50–4.50	0.30	0.12	0.05	0.03	0.015	Balance
Grade 23 / R56407	Al 5.50–6.50; V 3.50–4.50	0.25	0.13	0.08	0.05	0.0125	Balance

Mechanical Properties – Annealed Material Reference

Grade	Ultimate Tensile Strength min	0.2% Yield Strength min	Elongation min
Grade 1	240 MPa	170 MPa	24%
Grade 2	345 MPa	275 MPa	20%
Grade 3	450 MPa	380 MPa	18%
Grade 4	550 MPa	483 MPa	15%
Grade 5	895 MPa	828 MPa	10%
Grade 6	828 MPa	793 MPa	10%
Grade 7	345 MPa	275 MPa	20%
Grade 9	620 MPa	485 MPa	15%
Grade 12	483 MPa	345 MPa	18%
Grade 11	240 MPa	170 MPa	24%
Grade 16	345 MPa	275 MPa	20%
Grade 17	240 MPa	170 MPa	24%
Grade 19 / Beta-C	Acceptance depends on solution treatment, aging condition, product form and section size; use the certified values required by the invoked product or aerospace specification.
Grade 23	860 MPa	795 MPa	10%

Representative minima only. Product form, section size, heat treatment and the invoked specification determine the certified acceptance values.

Typical Physical Properties

Grade	Density	Elastic Modulus	Thermal Expansion
Grade 1	4.51 g/cm³	Approx. 103 GPa	Approx. 8.6 µm/m·K
Grade 2	4.51 g/cm³	Approx. 105 GPa	Approx. 8.6 µm/m·K
Grade 3	4.51 g/cm³	Approx. 105 GPa	Approx. 8.6 µm/m·K
Grade 4	4.51 g/cm³	Approx. 105 GPa	Approx. 8.6 µm/m·K
Grade 5	4.43 g/cm³	Approx. 114 GPa	Approx. 8.6 µm/m·K
Grade 6	Approx. 4.48 g/cm³	Approx. 110 GPa	Approx. 8.8 µm/m·K
Grade 7	Approx. 4.51 g/cm³	Approx. 105 GPa	Approx. 8.6 µm/m·K
Grade 9	Approx. 4.48 g/cm³	Approx. 105 GPa	Approx. 9.0 µm/m·K
Grade 12	Approx. 4.54 g/cm³	Approx. 103 GPa	Approx. 8.6 µm/m·K
Grade 11	Approx. 4.51 g/cm³	Approx. 103 GPa	Approx. 8.6 µm/m·K
Grade 16	Approx. 4.51 g/cm³	Approx. 105 GPa	Approx. 8.6 µm/m·K
Grade 17	Approx. 4.51 g/cm³	Approx. 103 GPa	Approx. 8.6 µm/m·K
Grade 19 / Beta-C	Approx. 4.82 g/cm³	Condition-dependent; use certified engineering data	Condition-dependent; verify for design
Grade 23	4.43 g/cm³	Approx. 114 GPa	Approx. 8.6 µm/m·K

Typical engineering references, not inspection acceptance limits.

Certificates & Inspection Records

SAKY ALLOY quality management system certificate

Services We Can Provide

Specification ReviewGrade, revision, condition and supplementary requirements.

Cut-to-Size SupplyDimensions, machining allowance and tolerances by review.

InspectionDimensions, surface, chemistry and mechanical documentation.

Testing OptionsPMI, UT, PT or other agreed testing where applicable.

TraceabilityMTC, heat/lot identity and inspection records.

Export SupportProtected packing, labels and shipping documents.

Product Packaging

Bars and rods are separated by grade and heat, protected against surface damage and secured in bundles or export cases with identification and traceability labels. Typical export packaging for the same physical product form is shown below; final packing is confirmed for each order.

Application Scenarios

Chemical processing plant with industrial process piping

Aerospace components

Material grade, dimensions, condition and inspection must be matched to the application requirements.

Wind turbines and solar panels at a renewable energy site

Chemical equipment

Material grade, dimensions, condition and inspection must be matched to the application requirements.

Marine hardware

Material grade, dimensions, condition and inspection must be matched to the application requirements.

FAQ

Does ASTM B348 define one titanium bar grade?

No. ASTM B348/B348M covers multiple commercially pure and alloyed titanium grades. The order must state the exact grade, such as Grade 2, Grade 5, Grade 7 or Grade 23, together with bar or billet form and dimensions.

Does ASTM B348 cover every titanium rod application?

No. It covers the product forms and grades within its scope. Aerospace, medical, pressure-equipment or customer-controlled applications may require a different specification, condition, tests and documentation even when the alloy family appears similar.

What information is needed to quote ASTM B348 titanium bar?

Provide ASTM B348/B348M revision, grade and UNS, round, hex, square, flat or billet form, diameter or cross-section, length, tolerance, condition, surface, straightness, quantity, application, NDT, MTC and heat traceability.

ASTM B348 Titanium Bar