Ti Gr.12(Ti-Ni-Mo)


1. Introduce

– Titanium alloy with Ni, Mo added compared to Ti Gr.2, Gr.3

– Excellent crevice corrosion resistance, corrosion resistance and strength even in high temperature salt water compared to Ti Gr.2, Gr.3

– Superior strength and service temperature compared to Ti Gr,2, Gr.7

– Titanium alloy with α organization (Near α alloy)

– UNS R53400

* α organization

    1. features
      – α-texture : Material used for high-temperature structures due to low deformation even in high-temperature environment
      Excellent material for oxidation resistance, corrosion resistance, and creep at temperatures above 350℃
    2. Types : Ti Gr.12, Ti-6242(R54620), Ti-11(R52250), Ti-811(R54810), etc.

    * UNS

    1. Abbreviation for Unified Numbering Systems for Metals and Alloys
    2. Unified unique numbering system for metals and alloys
    3. A representative number that is compatible with metals and alloys defined in many material-related codes such as ASTM, AISI, ASME, AWS, etc.

    * R : Reactive and Refractory Metals and Alloys

    * UNS R53400 : 5XXXX : Titanium

            2. Property

            – High temperature strength, cold formability, weldability, good oxidation resistance

            ElementImpact
            Mo, NiProvides strength, corrosion resistance

            [Ti Gr.12(Ni) Chemical Composition (%)]

            TiNCHFe
            97.72 ~ 99.20Max. 0.03Max. 0.08Max. 0.02Max. 0.30
            ONiMoOthers
            Max. 0.250.60 ~ 0.900.20 ~ 0.40Max. 0.30

            [Ti Gr.12(Ni) Mechanical Properties]

            Tensile Strength
            (Mpa)
            Yield Strength
            (Mpa)
            Elongation
            (%)
            Hardness HV typical
            Min. 483Min. 345Min. 18209

            [Ti Gr.12(Ni) Physical Properties]

            Density
            (g/㎤)
            Melting Range
            (℃)
            Beta transus temperature
            (℃)
            Specific Heat
            (0-100℃),
            J/kg*℃
            4.511660890555

            3. Standard & Specification

            – Specification : UNS R53400

            ASTMB265, B337, B338, B348, B381
            Product FormASTMASME
            Plate, Sheet, StripB265SB-265 Gr.12
            Tube, PipeB338, B861, B862SB-338 Gr.12, SB-861, SB-862
            Bar, Rod, BilletB348SB-348 Gr.12
            FittingsB363SB-363

            4. Available Form

            – Plate, Sheet, Strip

            – Tube, Pipe

            – Bar, Rod, Billet

            – Fittings

            5. Application & Product

            – Power Generation, Chemical, Marine, Aerospace

            ApplicationProduct
            Power GenerationNuclear power plants, Evaporators
            ChemicalPressure vessels, Pumps, Valves, Heat exchangers, Pipes, Fittings
            MarineShip components, Pumps, Valves
            AerospaceAircraft components, Rocket engines, Gaskets

            (1) Evaporator / (2) Pump / (3) Valve / (4) Rocket Engine

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