{"id":971,"date":"2026-10-09T09:21:27","date_gmt":"2026-10-09T09:21:27","guid":{"rendered":"https:\/\/daix488.sg-host.com\/?post_type=product&p=971"},"modified":"2026-10-20T07:58:41","modified_gmt":"2026-10-20T07:58:41","slug":"astm-b348-grade-23-titanium-rod-bar","status":"publish","type":"product","link":"https:\/\/www.htn-ti.com\/fr\/product\/astm-b348-grade-23-titanium-rod-bar\/","title":{"rendered":"ASTM B348 Grade 23 Titanium Rod \/ Bar"},"content":{"rendered":"\t\t
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Product Overview<\/h2>\t\t\t\t<\/div>\n\t\t
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ASTM B348 Grade 23 titanium rod\/bar is a Ti-6Al-4V ELI (Extra Low Interstitial) alpha-beta titanium alloy bar produced and tested to ASTM B348\/B348M. The alloy is UNS R56407, with 5.50% to 6.50% aluminum and 3.50% to 4.50% vanadium, together with tighter limits on oxygen, iron and hydrogen than Grade 5.<\/p>

Grade 23 is the low-interstitial variant of Grade 5 (Ti-6Al-4V). Its lower oxygen, iron and hydrogen limits support improved ductility and fracture toughness, making it appropriate for critical applications requiring material cleanliness, damage tolerance, fatigue performance and heat traceability. It is commonly supplied annealed; final strength, microstructure and testing must be confirmed against the applicable specification, dimensions and purchase requirements.<\/p>

Grade 23 bar is suitable for medical-device and implant machining stock when ASTM F136 or a customer medical specification is separately ordered and accepted, as well as aerospace fasteners and structures, marine and energy hardware, high-performance sporting equipment, scientific instruments and other precision components requiring high specific strength, corrosion resistance and toughness.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Specification<\/strong><\/td>Details<\/strong><\/td><\/tr>
Industrial Standard<\/strong><\/td>ASTM B348<\/td><\/tr>
Industrial Grades<\/strong><\/td>Gr23<\/td><\/tr>
Diameter Range<\/strong><\/td>\u00d87 \u2013 \u00d8300 mm<\/td><\/tr>
Typical Diameters<\/strong><\/td>\u00d87, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 120, 150, 200 mm<\/td><\/tr>
Typical Industrial Bar Length<\/strong><\/td>200\u20133000 mm; cut-to-length available<\/td><\/tr>
Surface \/ Supply Condition<\/strong><\/td>Hot-rolled black surface \/ Turned \/ Ground<\/td><\/tr>
Precision Tolerance<\/strong><\/td>h6 \/ h7 \/ h8 available subject to diameter, finishing process and order confirmation<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Main Characteristics<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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  • Lower interstitial-element content:<\/strong> Oxygen is limited to 0.13%, iron to 0.25% and hydrogen to 0.0125%. Compared with Grade 5, this control generally supports better ductility and fracture toughness; actual performance depends on microstructure, heat treatment, section size and test direction.<\/li>
  • High strength:<\/strong> Annealed ASTM B348 Grade 23 minimum tensile strength is 828 MPa, minimum 0.2% offset yield strength is 759 MPa, minimum elongation is 10% and minimum reduction of area is 25%.<\/li>
  • Good corrosion resistance:<\/strong> A stable titanium-oxide passive film gives good performance in many oxidizing and chloride-bearing aqueous environments. Grade selection must still be based on medium, temperature, concentration, oxygen availability and crevice conditions.<\/li>
  • Good weldability:<\/strong> TIG, electron-beam, laser and other qualified processes may be used. The joint must be clean and the weld pool, face, root and hot heat-affected zone require complete high-purity inert-gas shielding.<\/li>
  • Heat-treatment flexibility:<\/strong> Annealing, stress relief or solution treatment and aging may be used under qualified procedures to adjust strength, ductility and microstructure. The thermal condition, final supply condition and required properties must be stated in the order.<\/li>
  • Medical use requires separate confirmation:<\/strong> ASTM B348 Grade 23 is not automatically equivalent to ASTM F136 implant-grade material. For implants or medical devices, the order must state the ASTM F136 edition and any required chemistry, microstructure, surface, cleanliness, documentation and supplementary controls.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    Chemical Composition<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    ASTM B348 Grade 23 chemistry is controlled to the following mass-percent limits:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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    Element<\/strong><\/td>ASTM B348 Grade 23 requirement<\/strong><\/td><\/tr>
    Nitrogen, N<\/strong><\/td>\u22640.030%<\/td><\/tr>
    Carbon, C<\/strong><\/td>\u22640.080%<\/td><\/tr>
    Hydrogen, H<\/strong><\/td>\u22640.0125%<\/td><\/tr>
    Iron, Fe<\/strong><\/td>\u22640.250%<\/td><\/tr>
    Oxygen, O<\/strong><\/td>\u22640.130%<\/td><\/tr>
    Aluminum, Al<\/strong><\/td>5.50%\u20136.50%<\/td><\/tr>
    Vanadium, V<\/strong><\/td>3.50%\u20134.50%<\/td><\/tr>
    Residual elements, each<\/strong><\/td>\u22640.100%<\/td><\/tr>
    Residual elements, total<\/strong><\/td>\u22640.400%<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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    • Aluminum and vanadium are the principal alloying elements in Ti-6Al-4V ELI, supporting an alpha-beta microstructure and high strength. Their levels, together with thermomechanical processing and heat treatment, affect strength, toughness and microstructure.<\/li>
    • Oxygen, nitrogen, carbon, hydrogen and iron require close control. The lower oxygen, iron and hydrogen limits distinguish Grade 23 from Grade 5; excessive oxygen and iron can reduce toughness, while excessive hydrogen can form brittle hydrides.<\/li>
    • Final chemistry shall be confirmed by the original mill test report for the applicable heat. ASTM F136 for medical use, aerospace specifications, customer drawings and any more-stringent requirements must be stated in the order and shall not be inferred from ASTM B348 documentation alone.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      Mechanical Requirements<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      The following room-temperature tensile requirements apply to annealed ASTM B348 Grade 23 bar. The specified edition, dimensions, specimen form, test orientation and supplementary requirements must also be considered for formal acceptance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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      Property<\/strong><\/td>Requirement<\/strong><\/td>Status<\/strong><\/td><\/tr>
      Ultimate tensile strength, Rm<\/strong><\/td>\u2265828 MPa<\/td>ASTM minimum<\/td><\/tr>
      0.2% offset yield strength, Rp0.2<\/strong><\/td>\u2265759 MPa<\/td>ASTM minimum<\/td><\/tr>
      Elongation in the specified gauge length<\/strong><\/td>\u226510%<\/td>ASTM minimum<\/td><\/tr>
      Reduction of area, Z<\/strong><\/td>\u226525%<\/td>ASTM minimum<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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      Typical room-temperature properties (not guaranteed)<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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      Property<\/strong><\/td>Reference Value<\/strong><\/td><\/tr>
      Ultimate tensile strength<\/strong><\/td>Approx. 860\u2013965 MPa<\/td><\/tr>
      0.2% offset yield strength<\/strong><\/td>Approx. 795\u2013895 MPa<\/td><\/tr>
      Elongation<\/strong><\/td>Approx. 10\u201318%<\/td><\/tr>
      Reduction of area<\/strong><\/td>Approx. 25\u201340%<\/td><\/tr>
      Elastic modulus<\/strong><\/td>Approx. 107\u2013122 GPa<\/td><\/tr><\/tbody><\/table><\/div>

      Important:<\/strong> Typical values are not ASTM acceptance values and are not automatically guaranteed for every lot. Hardness, UT, PMI, microstructure, fatigue, fracture toughness, ASTM F136, medical cleanliness or other tests must be ordered when required.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      HTN Supply and Quality Services<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      ASTM B348 Grade 23 titanium bar is produced by evaluated, qualified mill resources. HTN confirms technical requirements from customer drawings and purchase specifications, selects a mill with appropriate capability, reviews the original MTR and heat\/lot records, and verifies the relationship among material standard, dimensions, quantity, condition and inspection documents.<\/p>

      When agreed in the contract, HTN can coordinate independent retesting, ultrasonic examination, PMI, microstructure examination, cut-to-length service, turning or grinding, EN 10204 3.1 documentation and third-party inspection, together with export packing, shipping documents and international delivery.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Typical Applications<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      • Medical-device and implant machining stock, when ASTM F136 or customer medical requirements are separately confirmed;<\/li>
      • aerospace fasteners, structures, engine parts and other high-performance machined components;<\/li>
      • marine engineering, shipboard, energy, instrumentation and high-performance sporting-equipment components;<\/li>
      • pump and valve hardware, flanges, pressure-equipment parts and custom components requiring high specific strength and corrosion resistance;<\/li>
      • research equipment, precision instruments and engineering uses requiring material cleanliness, strength, toughness and traceability;<\/li>
      • other critical uses evaluated against drawings, standards, supply condition and service environment.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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        Request a Quote<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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        Fill in the form below and our team will be happy to assist you<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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