{"id":1168,"date":"2026-10-14T10:35:11","date_gmt":"2026-10-14T10:35:11","guid":{"rendered":"https:\/\/daix488.sg-host.com\/?post_type=product&p=1168"},"modified":"2026-10-15T09:52:48","modified_gmt":"2026-10-15T09:52:48","slug":"astm-b863-grade-12-titanium-wire","status":"publish","type":"product","link":"https:\/\/www.htn-ti.com\/fr\/product\/astm-b863-grade-12-titanium-wire\/","title":{"rendered":"ASTM B863 Grade 12 Titanium Wire"},"content":{"rendered":"\t\t
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Product Overview<\/h2>\t\t\t\t<\/div>\n\t\t
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ASTM B863 Grade 12 titanium wire is corrosion-resistant Ti-0.3Mo-0.8Ni alloy wire with UNS designation R53400. Small molybdenum and nickel additions raise strength and substantially improve the performance of unalloyed titanium in hot brines, crevices and some reducing media. Typical fields include chemical processing, desalination, hydrometallurgy, energy and marine equipment.<\/p>

Grade 12 is generally stronger than Grade 2 while retaining good weldability and useful fabricability. Wire properties depend on diameter, cold reduction, annealed or stress-relieved condition, microstructure and surface quality. ASTM B863 Grade 12 wire does not automatically satisfy pressure-equipment, welding-consumable, medical-device or plant-design requirements.<\/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 B863<\/td><\/tr>
Grades<\/strong><\/td>Gr12<\/td><\/tr>
Diameter Range<\/strong><\/td>\u00d80.03\u2013\u00d87.0 mm<\/td><\/tr>
Typical Diameters<\/strong><\/td>\u00d80.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 7.0 mm<\/td><\/tr>
Supply Form<\/strong><\/td>Coil \/ Spool or straightened and cut wire<\/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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  • Balanced strength and corrosion resistance:<\/strong> Density is about 4.51 g\/cm\u00b3 and a material-level minimum reference tensile strength is about 483 MPa, supporting thinner corrosion-resistant sections where design rules permit.<\/li>
  • Improved crevice-corrosion resistance over unalloyed titanium:<\/strong> Mo and Ni stabilize performance in hot brines, acidic chlorides and some mildly reducing conditions, particularly where Grade 2 may face crevice-corrosion risk.<\/li>
  • Good weldability:<\/strong> Qualified inert-gas fusion or resistance welding may be used; the pool, root and hot heat-affected zone must be protected from air and moisture contamination.<\/li>
  • Useful forming and drawing capability:<\/strong> Grade 12 can be drawn, coiled and formed, but its higher strength than Grade 2 requires validated tooling, lubrication, area reduction and intermediate annealing.<\/li>
  • Useful strength at moderate temperature:<\/strong> Service temperature, allowable stress and corrosion allowance must be established from the applicable design code and medium-specific data.<\/li>
  • Not directly equivalent to palladium-bearing grades:<\/strong> Grade 12 performs very well in many hot-brine and selected acidic services, but it is not Grade 7 or 11; medium, concentration, temperature, crevice and electrochemical conditions require individual evaluation.<\/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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    The following limits apply to ASTM B863 Grade 12. Values are mass percentages. Formal acceptance is governed by the contract edition and the producer’s certified report.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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    Element<\/strong><\/td>ASTM B863 Grade 12 requirement<\/strong><\/td><\/tr>
    Molybdenum, Mo<\/strong><\/td>0.2-0.4%<\/td><\/tr>
    Nickel, Ni<\/strong><\/td>0.6-0.9%<\/td><\/tr>
    Nitrogen, N<\/strong><\/td>\u22640.03%<\/td><\/tr>
    Carbon, C<\/strong><\/td>\u22640.08%<\/td><\/tr>
    Hydrogen, H<\/strong><\/td>\u22640.015%<\/td><\/tr>
    Iron, Fe<\/strong><\/td>\u22640.30%<\/td><\/tr>
    Oxygen, O<\/strong><\/td>\u22640.25%<\/td><\/tr>
    Residual elements, each<\/strong><\/td>\u22640.10%<\/td><\/tr>
    Residual elements, total<\/strong><\/td>\u22640.40%<\/td><\/tr>
    Titanium, Ti<\/strong><\/td>Balance<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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    Technical references: ASTM B863 grade scope and TIMETAL Grade 12 (Ti-0.8Ni-0.3Mo) technical data.<\/p>

    • Molybdenum and nickel:<\/strong> Mo supports beta stabilization, strength and resistance to reducing media; Ni works with Mo to improve performance in certain hot-brine and crevice conditions. Acceptance follows specified ranges, not only the nominal alloy name.<\/li>
    • Oxygen, iron and nitrogen:<\/strong> These elements affect strength, hardness, ductility and processing. Producer typical values must not replace ASTM maximum limits.<\/li>
    • Hydrogen:<\/strong> Must be strictly controlled. Improper pickling, cathodic protection or electrochemical exposure can promote hydrogen pickup, loss of ductility and hydride formation.<\/li>
    • Titanium content:<\/strong> ASTM states Titanium: Balance. A fixed titanium percentage calculated from nominal chemistry is not an untested product guarantee.<\/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 Properties<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      ASTM B863 includes applicable tensile, elongation and hardness requirements for Grade 12 wire. Properties vary with diameter and delivery condition. Formal acceptance must follow the ordered condition, applicable size range, test method and official standard tables.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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      Property<\/strong><\/td>Product-page technical statement<\/strong><\/td>Acceptance basis<\/strong><\/td><\/tr>
      Tensile strength<\/strong><\/td>Depends on diameter and annealed\/cold-worked condition<\/td>Applicable ASTM B863 table and purchase order<\/td><\/tr>
      Elongation<\/strong><\/td>Depends on diameter, gauge length and condition<\/td>Applicable ASTM B863 table and purchase order<\/td><\/tr>
      Hardness<\/strong><\/td>The specification includes applicable requirements; one value cannot cover every condition<\/td>Applicable grade, condition and test method<\/td><\/tr>
      Yield strength<\/strong><\/td>Minimum values defined for annealed condition(Rp0.2 \u2265345 MPa); cold\u2011worked values vary with cold reduction & wire diameter, no universal fixed value<\/td>Specify condition, diameter and acceptance requirements in purchase order if yield strength is required<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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      Grade 12 Material Reference Properties (TIMETAL Grade 12 reference data, NOT ASTM B863\u201126 wire guaranteed acceptance values)<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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      Property<\/strong><\/td>TIMETAL Grade 12 material reference<\/strong><\/td><\/tr>
      Ultimate tensile strength<\/strong><\/td>Minimum reference approx. 483 MPa<\/td><\/tr>
      0.2% yield strength<\/strong><\/td>Minimum reference approx. 345 MPa<\/td><\/tr>
      Elongation<\/strong><\/td>Minimum reference approx. 18%<\/td><\/tr>
      Reduction of area<\/strong><\/td>Approx. 25% for bar\/billet\/forgings; not a wire guarantee<\/td><\/tr><\/tbody><\/table><\/div>

      Important:<\/strong> The values above are representative Grade 12 material data and are not universal ASTM B863 wire acceptance values. Diameter, cold reduction and final annealing affect strength, elongation and hardness. Quotations, contracts and MTRs should identify diameter, tolerance, condition, surface, coil weight or cut length, and inspection requirements.<\/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 Documentation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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      HTN organizes ASTM B863 Grade 12 Ti-0.3Mo-0.8Ni wire supply to customer purchase requirements. Material is produced by qualified titanium-mill resources. Original mill reports, heat traceability, full chemistry and property records can be supplied as agreed. HTN reviews the edition, heat number, diameter, tolerance, condition, surface, coil weight or cut length, and can arrange independent retesting, cut-to-length service, clean packaging and third-party inspection.<\/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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      • Corrosion-resistant wire parts for chemical heat exchangers, evaporators, condensers and reactors;<\/li>
      • mesh, support wire and connectors for desalination, salt processing and hot-brine systems;<\/li>
      • corrosion-resistant screens and filter elements for hydrometallurgy, mining and energy equipment;<\/li>
      • medium-strength fastening, tying or locating parts for marine and pollution-control equipment;<\/li>
      • precision corrosion-resistant wire parts requiring drawing, coiling, weaving, bending or flattening;<\/li>
      • critical parts only when additional pressure-equipment, design-code or customer requirements are satisfied;<\/li>
      • welding filler wire only when the applicable AWS A5.16 classification is met;<\/li>
      • special wire assemblies made to customer drawings and validated by corrosion, forming, fatigue or functional testing.<\/li><\/ul>

        Application boundary:<\/strong> ASTM B863 Grade 12 wire is not automatically qualified pressure-equipment material, welding filler or permanently maintenance-free material for a specific corrosive service. Such uses separately require the applicable design code, AWS A5.16, customer drawing, corrosion data and quality-system requirements.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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