Rev. 05. Supershield 71-T8. SELF-SHIELDED FLUX CORED ARC WELDING CONSUMABLE FOR MILD & 490MPa CLASS HIGH TENSILE STEEL HYUNDAI WELDING CO., LTD.

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1 Rev. 05 SELF-SHIELDED FLUX CORED ARC WELDING CONSUMABLE FOR MILD & 490MPa CLASS HIGH TENSILE STEEL HYUNDAI WELDING CO., LTD.

2 v Specification (M E491T8-A3-CS3) (AWS A5.20 E71T-8 H16) EN ISO A T42 3 Y NO 2 H15 AWS D1.8 v Applications All position welding of ship building, machinery, bridges, building, And vehicles using mild and higher strength steels. v Characteristics on Usage is self-shield flux cored wire for high deposition rate all position welding where low temperature impact properties are required. meets AWS D1.8 seismic requirements. v Note on Usage Do not use shielding gas

3 Mechanical Properties & Chemical Composition of All Weld Metal Method by AWS Spec. 45⁰ Welding Position : 1G(PA) Diameter : 1.6mm(1/16in) EH36 (20T) Unit:mm [ Joint Preparation & Layer Details ] Polarity : DC- Amp./ Volt. : 240A / 22V Stick-Out : 19~25mm(0.75~0.98in) Pre-Heat : R.T. Interpass Temp. : 150±15 (302±59 ) v Mechanical Properties of all weld metal Consumable Tensile Test Tensile specimen artificially aged at 105 for 48hr, as permitted by AWS A CVN Impact Test J(ft lbs) YS TS EL(%) -30 (-22 ) -40 (-40 ) 423(61) 523(76) (64) 74(55) 400 (58) 490~660 (70~95) 22 27J at 30 ( 20ft lbs at -22 ) v Chemical Analysis of all weld metal(wt.%) Consumable C Si Mn P S Ni Cr Mo V Cu Al Supershield 71-T

4 Mechanical Properties & Chemical Composition of All Weld Metal Method by AWS Spec. 45⁰ Welding Position : 1G(PA) Diameter : 1.8mm(0.072in) EH36 (20T) Unit:mm [ Joint Preparation & Layer Details ] Polarity : DC- Amp./ Volt. : 240A / 21V Stick-Out : 19~25mm(0.75~0.98in) Pre-Heat : R.T. Interpass Temp. : 150±15 (302±59 ) v Mechanical Properties of all weld metal Consumable Tensile Test Tensile specimen artificially aged at 105 for 48hr, as permitted by AWS A CVN Impact Test J(ft lbs) YS TS EL(%) -30 (-22 ) -40 (-40 ) 486(70,470) 549(79,605) (61) 68(50) 400 (58) 490~660 (70~95) 22 27J at 30 ( 20ft lbs at -22 ) v Chemical Analysis of all weld metal(wt.%) Consumable C Si Mn P S Ni Cr Mo V Cu Al Supershield 71-T

5 Mechanical Properties & Chemical Composition of All Weld Metal Method by AWS Spec. 45⁰ Welding Position : 1G(PA) Diameter : 2.0mm(5/64in) EH36 (20T) Unit:mm [ Joint Preparation & Layer Details ] Polarity : DC- Amp./ Volt. : 285A / 21V Stick-Out : 19~25mm(0.75~0.98in) Pre-Heat : R.T. Interpass Temp. : 150±15 (302±59 ) v Mechanical Properties of all weld metal Consumable Tensile Test Tensile specimen artificially aged at 105 for 48hr, as permitted by AWS A CVN Impact Test J(ft lbs) YS TS EL(%) -30 (-22 ) -40 (-40 ) 491(71,195) 564(81,780) (69) 73(54) 400 (58) 490~660 (70~95) 22 27J at 30 ( 20ft lbs at -22 ) v Chemical Analysis of all weld metal(wt.%) Consumable C Si Mn P S Ni Cr Mo V Cu Al Supershield 71-T

6 Diffusible Hydrogen Content Diameter(mm) : 1.6 Welding Speed : 45 cpm Amps(A) / Volts(V) : 240 / 22 Stick-Out(mm) : 25 Current Type & Polarity : DC(-) v Hydrogen Analysis Using Gas Chromatography Method Hydrogen Evolution Time : 72 hrs Evolution Temp. : 25 Analysis Temp. : 25 Exposure Condition : 80%RH-25 Barometric Pressure : 780 mm-hg v Result( ml /100g Weld Metal) X1 X2 X Average Hydrogen Content 6.06 ml / 100g Weld Metal

7 Proper Welding Condition v Proper Voltage and Current Range Wire Diameter Contact Tip to Work Distance Current(A) Voltage(V) 1.6mm (1/16in) 19~32mm (0.75~1.25in) ~ ~ ~ ~21 1.8mm (0.072in) 19~32mm (0.75~1.25in) ~ ~ ~ ~20 2.0mm (5/64in) 19~32mm (0.75~1.25in) ~ ~ ~25 v F No & A No F No A No 6 1