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347
DESCRIPTION: Weldcote Metals 347 is a columbium stabilized stainless steel welding
wire used to weld Types 321 and 347. Addition of columbium reduces the possibility of
chromium carbide precipitation and consequent intergranular corrosion.
APPROVALS: Manufactured under Quality System approved by ASME, IS09001. Meets
AWS 5.9 Class ER347. Approved by Canadian Welding Bureau.
CHEMICAL COMPOSITION MECHANICAL PROPERTIES
Carbon 0.080 Tensile Strength
Manganese 1.000-2.500 86,500 PSI 600 MPA
Silicon 0.300-0.650
Chromium 19.000-21.000 Yield Strength
Nickel 9.000-11.000 57,000 PSI 390 MPA
Molybdenum 0.300
Sulfur 0.020 Elongation 35%
Phosphorus 0.030
Copper 0.300
Niobium 12xC-1.000
WELDING PARAMETERS
a) MIG WELDING: Direct current; Electrode +Ve
Shielding Gas 98/99% Argon + 2/1% Oxygen
97% Argon + 3% CO2
Gas Flow 30 to 50 CFH
Voltage 29 to 33
Amperage 160/180 for .035" (0.9mm)
180/220 for .045" (1.14mm)
210/250 for .062" (1.6mm)
b) TIG WELDING: Direct Current; Electrode –Ve
Shielding Gas 100% Argon
Gas Flow 30 to 40 CFH
c) SUB-ARC WELDING: Direct Current; Electrode + Ve
Voltage 29 to 32
Amperage 300 to 350 for 3/32" (2.5mm)
400 to 550 for 1/8" (3.14mm)
500 to 650 f o r 5 /32" (4.0mm)
Speed of Welding 20 to 30 IPM (500 to 750mm)/min.
Weldcote Metals believes this data to be accurate and to reflect qualified expert opinion regarding current research. However, Weldcote
Metals can not make any expressed or implied warranty as to this information.