1. … at higher temperatures up to 550ºC. To much layers should be avoided, preheat is necessary to avoid cracking. A buffer layer with OA 4370 or …
  2. … ER409 alloy. Single pass welds on light gage base metal or welds with preheat do not usually require PWHT. … 1.4000, 1.4002, 1.4016, 1.4057, …
  3. … alloys and covers a huge range of alloys. Thicker sections should be preheated (150°C) prior to welding. … Aluminium alloys: AlMg4,5Mn, …
  4. … used on the back surface of sheet or plate less than 1/4 in. thick to prevent oxidation. Gas Requirements. Welding-grade argon (99.999 …
  5. … Welding procedure (including preheat temperature, interpass temperature and PWHT) will be dependent …
  6. … risk of braking out or chipping of. In case of sensitive base material preheating is recommended at 300 - 400 °C. Old Hardfacing layers should …
  7. … of up to 550°C. Typical applications are in power plant construction, pressure pipe, turbine and boiler construction. The alloy is also used …
  8. … hardness and is resistant against metal-metal wear and high surface pressure.  … 1.4317, 1.4313, 1.4407, 1.4414,    GX4CrNi13-4, …
  9. … and corrosion resistance even in seawater. Welding instructions: - Preheating for sections >6 mm from 150 till 300 ºC is recommended. Use …
  10. … properties. This alloy should be applied at highest impact and pressure loads applications. Best to be used with welding flux FL 915 … …