Home Auxiliary Welding equipment Elektroda low alloy steel

Elektroda low alloy steel

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Spesifikasi kawat las terbungkus untuk Low Alloy Steel diatur pada AWS A5.5.
Dengan kode yang sama seperti elektroda mild steel diikuti dengan garis (dash) dan huruf serta angka sebagai unsur paduan,yaitu:
  • A = ditambahkan unsur carbon molybdenum
  • B = ditambahkan unsur chromium molybdenum
  • C = ditambahkan unsur nickel steel
  • D = ditambahkan unsur manganese molybdenum molybdenum
  • G = ditambahkan unsur lainnya
  • R akhir kode = mengindikasikan ketahanan terhadap serapan uap (moisture pickup) (80% humidity, 80ºF, 9 jam).
Contoh elektroda antara lain: E7018-H8R, E8018 – B2H4R dan lain-lain.
Cara membaca :
Kawat las E7018-H8R artinya kekuatannya 70ksi,  mengandung mengandung “iron powder-iron oxide-iron powder-iron oxide”, mengandung sedikit hidrogen (low hydrogen), ketahanan terhadap uap air dan untuk dipakai pada pengelasan mild steel.
Kawat Las : E8018-B2H4R artinya kekuatannya 80ksi , mengandung, iron powder iron oxide, dipadu  dengan chrome moly serta low hydrogen, ketahanan terhadap uap air serta digunakan untuk mengelas paduan baja chrome moly.

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