ok 76.96 is an lma electrode containing 9cr1mo for the welding of creep-resistant steels. it is especially suitable for pipe welding. the electrode runs with a quiet, stable arc【敏感詞】gives a minimum amount of spatter. a preheating【敏感詞】interpass temperature of 150-260°c is normally required. the mechanical properties stated here are after one hour of heat treatment at 740°c.deposition datadiametercurrentdeposition ratefusion time per electrode at 90％ i maxkg weld metal/kg electrodesnumber of electrodes/kg weld metalvoltage2.5 x 300 mm70-100 a0.80 kg/h51 hr0.55 kg92.025 v3.2 x 350 mm90-135 a1.10 kg/h70 hr0.55 kg50.026 v2.0 x 300 mm55-75 a0.50 kg/h49 hr0.58 kg131.023 v4.0 x 450 mm130-200 a1.90 kg/h80 hr0.64 kg22.521 v
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