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railroad track weldability?

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  • #31
    Re: Railroad Track Weldability

    Originally posted by spotsineyes View Post
    Manganese. Rails are manganese steel.

    Rail road Track is NOT Manganese, It is High Carbon Steel. To effectivly weld on the Ball of the Rail you must 1st Fre heat the Ball of the rail to 900F or if you have a Digital Therm. 1000F Prior to welding. E7018 is NOT a high Carbon rod, If the weld is made to a cold Rail, The weld will break off. You can get High Carbon Rail from any Railroad Contracting firm or welding shop. The Manganese you find on Railroads are the Cast Manganese Blocks that are on a SGM "Self Guarded Manganese" Frog where 2 rails cross eachother, Or in most instances they are RBM "Rail Bound Manganese" For welding the Inserts & Points of a frog, Manganese rod is used at about 300A & Then Ground Down to profile.

    Thermite Procesures of High Carbon Rail is done the same temps, Cut the rail to a 1.50" opening, There is a Clay Mold & Steel Frame that fits to Make for a casting Mold, after the Molds are set & Fit, The Opening is fit w/ a propane high BTU Torch & Preheated to 1000F+ There is a Crucible "charge that contains Steel, Very Little manganese, & the Charge, The Crucible is lit w/ a High Temp sparkler. Once the Pour is Made & Proper time has elapsed, The forms are broke down, & All the clay is Sheared offf & Then a Profile Grinder is set on the Rail to Form the weld evenly & Then the weld & Rail is covered to let the weld cool Slowly, also a Thermite weld Cannot be made if the Rail ends Have Bolting hols in them, That is a Fracture Point & It will break.

    Hope that sheds a little light on High Carbon Steel welding of Rail & Thermite Rail welding Procedures.

    Also If You Scrap for a living, Dont waste your time w/ Manganese Inserts from Railroads, 99% of the yards in the states will NOT Accept it for its a Toxic Material for Scrap yards & They will leave it on your trailers, However if you have the Permits, Rail is HIgh $ at Scrap yards, But BEWARE, FRA & FBI May just Pay you a Visit!

    Take Care Guys

    Dave S.


    • #32
      Originally posted by OilfieldWelder78 View Post
      Rail road Track is NOT Manganese, It is High Carbon Steel. ...

      Dave S.

      This is the web page that this image comes from:
      Attached Files


      • #33
        Many years ago some railroad rail was available at some scrap yards, and making small anvils from it was very popular. You may see one of those anvils at a yard sale .

        It is very heavy.


        • #34
          When sections need to be hand welded on site, they use 309L-16 rods in Australia.


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