英语翻译With CO2 shielding ,best toughness was obtained in the uphill welding position and with two passes per layer,if all the test temperature rage is considered.ANSI/AWS A5.29-98 E91-T5-K2/K2M and E101T5-K3/K3M impact requirements were very co
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英语翻译The tensile properties were higher in welds made under the Ar/CO2 mixture and with three passes per layer,in correlation to chemical composition and hardness results.Impact properties were excellent in all the conditions studied .The best