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PROCEDURE QUALIFICATION RECORD Page: 1 of 2

Section IX ASME Boiler and Pressure Vessel Code

GENERAL

Manufacturer OTB CONSTRUCTION (PTY) LTDEdit no. 0Edit date N/ACode / test standard ASME IX 2011

WPS number OTB - P020WPS rev. 0WPS date 28 - 03 - 2011

Welder name(s) & ID no. (1) M.J. MDAO CW0843(2) N/A

BASE METALS

Material 1 304L Thickness 3.4mmGroup no. P8 GR. 1 Diameter 6" sch40

Material 2 304L Backing N/AGroup no. P8 GR. 1 Backing type N/A

Inserts / Retainers N/A

FILLER METALS

Process GTAW ( SUPER ROOT) GTAW (FILLER) :Process type MANUAL MANUAL :Filler specification R316L T1-5 ER316L :Filler class no. AWS A5 . 22-95 R316L T1 - 5 AWS / SFA A5.9 ER316L :Filler "F" no. 6 6 :Filler "A" no. / chem. 8 8 :Consumable backing none :Flux trade name N/A N/A :Sup. filler / powder N/A N/A :Flux type N/A N/A :Process thickness 2mm 1.4mm :

PREHEAT GAS

P.H. temp. Type ARGONHeat method N/A % Comp. 99.99%Temp. check N/A Flow rate 20 - 25Interpass temp. Orifice 10mmHeat area HAZ/WELD AREA Trailing gas ARGONP.H. maintenance N/A Backing gas N/AOther N/A Flow rate N/A

JOINTS PASS & LOCATION SEQUENCE

Prep method GRINDING Max. run thk. 2mmInitial clean GRINDING Gouge method N/AMax. run type GTAW Interpass clean WIRE BRUSHING

6 0°- 70°

2.4mm3.4mm 1-2mm

4mm

2-4mm

Process Pass noFiller size Amps Volts Speed

Progression Other(mm) (A) (V) (cm/min)

GTAW 1 2.2 6G 80.3 9 3 UPHILL DCEN-GTAW 2 2.4 6G 81.3 10 4 UPHILL DCEN-

16°C

163°C

Weld position

I Type / Polarity

PROCEDURE QUALIFICATION RECORDSection IX ASME Boiler and Pressure Vessel Code Page: 2 of 2

WELDING TECHNIQUE

Sing./mult. arc SINGLE Electrode spac. N/A Sing./Mult. Pass MULTITransfer mode N/A Sides weld PNE Oscillation 10mmStr./weave bead WEAVE BEAD Peening N/A GTAW filler WITH FILLERC.T.W.D. 1 - 3 mm SAW recrus slag N/A Tungsten type EWTH - 2%Solid / tub. wire SOLID /TUBELAR Tungsten size 2.4mm

POST WELD HEAT TREATMENT

Heat rate N/A Cool rate N/A Hold temp. N/AMethod N/A Hold time N/A Other N/A

NON-DESTRUCTIVE EXAMINATION

Radiography Acceptable RT Rep no. : OTB RT011698 Dye Penetrant N/AUltrasonic N/A Visual AcceptableMagnetic Particle N/A Other N/A

DESTRUCTIVE TESTING

TENSILE TEST MC 243. 11. 0061. jvdm

MarkWidth Thk. Area Ultimate load Tensile strength

Fracture location & appeaarance(mm) (mm) (KN) (MPa)

1 18.76 3.22 60.41 31.37 519.28 Weld metal2 18.66 3.23 60.27 35.44 587.95 Weld metal

ROUND TENSILE TEST : N/A

MarkDiameter Area 0.2% proof stress Elongation Gauge length Reduction in area

(mm) (mm2) (KN) (MPa) (MPa) (MPa) (%) (mm) (%)

BEND TEST MC 243. 11. 0061. jvdm

Type Result Type Result

1 Root Acceptable 1 Face Acceptable

2 Root Acceptable 2 Face Acceptable

HARDNESS TEST MC 243. 11. 0061. jvdm

Mark LocationBase metal P8 Fusion Line Weld metal P8

(1) (2) (3) Ave. (1) (2) (3) (1) (2) (3)1 198 198 187 194.3 167 177 177 179 154 1642 201 201 203 201.6 188 188 173 172 174 1743 HB on surface 184 184 184 184 187 187 187 191 191 191

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/AN/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

Mark LocationBase metal P8 Fusion Line

(1) (2) (3) Ave. (1) (2) (3)1 186 179 179 194 168 186 1882 206 197 197 200 193 188 1883 HB on surface 191 191 191 191 177 177 177

N/A N/A N/A N/A N/A N/A N/A N/A N/AN/A N/A N/A N/A N/A N/A N/A N/A N/A

OTHER

Fillet weld fracture N/A Pen in P.M. : N/AMacro examination : N/A Appendices N/A

MANUFACTURER INSPECTION AUTHORITY

Name : Name :

Date : Date :

(mm2)

Ultimate load

Tensile strength

Yield strength

HV10 1mm from surface




We certify that the test welds were prepared, welded and tested satisfactorily to the best of our knowledge in accordance with the requirements of the code / testing standard indicated above.

Signature : Signature :

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