Method and wire for submerged arc welding of pipe

Details Method and wire for submerged arc welding of pipe Method and wire for submerged arc welding of pipe

1979-03-27

1981-03-17

Kucia, Richard R.

Electric heating

Metal heating

Weld rod composition

219 732, 219 7321, B23K 35362

Patent

active

042569494

ABSTRACT:
A combination of welding wire and welding flux for submerged arc welding of high strength low alloy pipe which require low temperature impact properties of at least 30 ft./lb. at -13.degree. F. The wire consists essentially of 2.0 to 3.5 wt. % manganese; 0.01 wt. % to 1.5 wt. % silicon; 0.05 to 0.15 wt. % carbon; balance iron with the proviso that when manganese is greater than 2.5 up to 3.5 wt. % the silicon content is between 0.01 wt. % to 1.5 wt. % and when the manganese content is between 2.0 to 2.5 wt. % the silicon content is greater than 0.3 wt. % up to 1.5 wt. %. The flux used with these wires is preferably acidic in nature.

REFERENCES:
patent: 1452781 (1923-04-01), Becket
patent: 1595143 (1926-08-01), Doan
patent: 1762482 (1930-06-01), Miller
patent: 1911053 (1933-05-01), Brophy
patent: 3227350 (1966-01-01), Thielsch
patent: 3227849 (1966-01-01), Thielsch
patent: 3458685 (1969-07-01), Tezuka
patent: 3745294 (1973-07-01), Arikawa
patent: 4029934 (1977-06-01), Clark
patent: 4058700 (1977-11-01), Ito

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