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flux brand executive standard: main composition of sintered flux %
SJ301 GB/T5293-1999 SiO2+TiO2 CaO+MgO Al2O3+MnO CaF2 S P 含水量% 粒度 夹杂物
40.34 24.2 23.35 8.76 0.038 0.028 0.02 10-60 0.002
mechanical performance of weld metal
tensile strength yield strength     Charpy V-notch impact absorbing energy (J)
N/mm2(Mpa) N/mm2(Mpa) elongation% flaw detection level normal temperature 00C  -20℃  -40℃  -60℃ coordinate with welding wire
548 426 32 I H10Mn2A
          Explanation: it needs baking at 350°C for 2 hours before using flux
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