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Dear Tonyq For SMAW : E9015 B3, SAW : EB3R+F9P2, GTAW : ER-90S-G can be used. For SAW process, Normally AC power source to be used. Pre-heating temp. = 175 degree celc.(Min) Internal pass temp = 250 degree celc. (Max). pl. note DHT is almost mandatory for SA 387 Gr. 11 Cl.2. DHT can be performed @ 350-400 degree cel. & 1in / hr, with min hodling time 30 min.
Above parameters are based on our personal experience. Parameter may change based on the property requirment, consumable brand, infrastucture available & etc.
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