LIST OF EXPERIENCES (WORK REFERENCES) IN THE LAST THREE YEARS
| NO | TYPE OF WORK | NAME OF COMPANY | TIME OF IMOLEMENTATION | |
| 1 | IN-SITU METALLOGRAPHY/REPLICA TEST ON COVER OF TURBINE STATOR, TURBINE STATOR #3 AND TURBINE STATOR #4, BANDUNG | PT. NUSANTARA TURBIN DAN PROPULSI | FEBRUARY 2025 | |
| 2 | REPLICA TEST ON UNP BEAM AND GRATING STRIP AT BMP (PRE-STRIPPER D 302A) AFTER EXPOSED TO FIRE, PADANG | PT. PADANG RAYA CAKRAWALA | FEBRUARY 2025 | |
| 3 | ASSESSMENT ON DAMAGED DUCTING, BELLOWS, AND SHELL 5 OF PRE-STRIPPER (D 302A), PADANG | PT. PADANG RAYA CAKRAWALA | FEBRUARY 2025 | |
| 4 | IN-SITU METALLOGRAPHY (REPLICA TEST) ON POWER TURBINE & HIGH-PRESSURE TURBINE, BANDUNG | PT. NUSANTARA TURBIN DAN PROPULSI | FEBRUARY 2025 | |
| 5 | IN SITU METALLOGRAPHY, HARDNESS TEST, CHEMICAL COMPOSITION ON COAL BOILER BURNER PART | PT. RIZA UTAMA TEKNIK | FEBRUARY 2025 | |
| 6 | ASSESSMENT ON SEGMENT PLATE MATERIALS OF PRE-STRIPPER (D 302A) AFTER A FIRE ACCIDENT, PADANG | PT. PADANG RAYA CAKRAWALA | FEBRUARY 2025 | |
| 7 | IN-SITU METALLOGRAPHY (REPLICA TEST) AND HARDNESS TESTING ON STEAM DRUM (BOILER 17-H-201) PT. PUPUK KALTIM, BONTANG-KALTIM | PT. TUV RHEINLAND INDONESIA | FEBRUARY 2025 | |
| 8 | METALLURGICAL ASSESSMENT OF PIPE 4”, 6”, 8”, 10” AND 12”OF SCH. 40 OF ASTM A-106 GR.B | PT. KUTAI REFINERY NUSANTARA | FEBRUARY 2025 | |
| 9 | IN-SITU METALLOGRAPHY (REPLICA TEST) PADA KOMPONEN PERALATAN KILANG PERTAMINA INTERNASIONAL RU IV CILACAP, CILACAP | PT. NUSAKURA STANDARINDO | JANUARY 2025 | |
| 10 | FAILURE ANALYSIS ON DAMAGED ROTOR BLADES OF NASH VACUUM PUMP 904-P2 (BC-301B) | PT. INEOS AROMATICS INDONESIA | JANUARY 2025 | |
| 11 | METALLURGICAL ASSESSMENT OF PIPE 2 INCH, 4 INCH, 6 INCH, 8 INCH, 10 INCH, 12 INCH AND 14 INCH SCH 40 OF ASTM A-106 GR.B | PT. KHATULISTIWA RAYA CAKRAWALA | JANUARY 2025 | |
| 12 | LABORATORY EXAMINATION ON PIPE 1 INCH, 2 INCH, 4 INCH AND 6 INCH SCH 10S OF SS-304 | PT. KHATULISTIWA RAYA CAKRAWALA | DECEMBER 2024 | |
| 13 | IN-SITU METALLOGRAPHY ON COMPONENTS OF A RECOVERY BOILER AT PT. KIANI KERTAS NUSANTARA, BERAU, KALIMANTAN TIMUR | PT. AREXAS INDONESIA | DECEMBER 2024 | |
| 14 | REPLICA TEST ON FINGER TUBES AND WELD JOINTS OF FINGER TUBE-PI NOZZLE AND VENTURI TUBE-HEADER OF FURNACE BA-103 | PT. CHANDRA ASRI PACIFIC, TBK | DECEMBER 2024 | |
| 15 | REPLICA TEST ON FURNACE BA-103 | PT. CHANDRA ASRI PACIFIC, TBK | DECEMBER 2024 | |
| 16 | REMAINING LIFE ASSESSMENT BY IN-SITU METALLOGRAPHY (REPLICA TEST) ON A STEAM TURBINE ROTOR AT THERMA LUZON, FILIPINA | PT. SULZER INDONESIA | NOVEMBER 2024 | |
| 17 | REPLICA TEST ON FURNACE BA-102 | PT. CHANDRA ASRI PACIFIC, TBK | OCTOBER 2024 | |
| 18 | LABORATORY EXAMINATION ON PIPE 2 INCH SCH 10 OF SS-304 | PT. KUTAI REFINERY NUSANTARA | OCTOBER 2024 | |
| 19 | REPLICA TEST ON FURNACES BA-106 AND BA-109 | PT. CHANDRA ASRI PACIFIC, TBK | SEPTEMBER 2024 | |
| 20 | FAILURE ANALYSIS OF LEAKAGE ON UNDERGROUND PIPELINE SS-304L USED IN TRANSPORTING LIQUID ACETIC ACID AT AMBIENT TEMPERATURE | PT. VOPAK TERMINAL MERAK | SEPTEMBER 2024 | |
| 21 | REVIEW HASIL UJI IN-SITU METALLOGRAPHY DAN HARDNESS TEST, PT. KILANG PERTAMINA INTERNATIONAL RU V BALIKPAPAN | PT. MULTI TEKNOLOGI INSPEKSI | AGUSTUS 2024 | |
| 22 | REPLICA TEST ON STEAM INTERMITTENT BLOWDOWN DRUM FA-702 | PT. CHANDRA ASRI PACIFIC, TBK | AGUSTUS 2024 | |
| 23 | REPLICA TEST ON STEAM INTERMITTENT BLOWDOWN DRUM FA-703 | PT. CHANDRA ASRI PACIFIC, TBK | AGUSTUS 2024 | |
| 24 | REPLICA TEST ON COLUMN 2DA-301 AND PIPES OF REACTOR 2DC-302 | PT. CHANDRA ASRI PACIFIC, TBK | AGUSTUS 2024 | |
| 25 | REPLICA TEST ON DRYER REGENERATION GAS HEATER EA-210 | PT. CHANDRA ASRI PACIFIC, TBK | AGUSTUS 2024 | |
| 26 | METALLURGICAL ASSESSMENT OF NEW RETURN BEND TUBES (T2 AND T22) | PT. RIZA UTAMA TEKNIK | AGUSTUS 2024 | |
| 27 | IN-SITU METALLOGRAPHY DAN HARDNESS TEST PADA REACTOR 37-R-101B DI KILANG PERTAMINA RU VI BALONGAN | PT. KARYA PATRA UTAMA | JULY 2024 | |
| 28 | IN-SITU METALLOGRAPHY DAN HARDNESS TEST PADA 12-J-501-C (SETELAH INSIDEN KEBAKARAN) DI PT. KILANG PERTAMINA INTERNASIONAL RU VI BALONGAN | PT. KARYA PATRA UTAMA | JULY 2024 | |
| 29 | FAILURE ANALYSIS ON A BROKEN UPPER SHAFT OF PTA-2 SECONDARY CRYSTALLIZER AGITATOR (2AG-1833) | PT. MITSUBISHI CHEMICAL INDONESIA | JULY 2024 | |
| 30 | REPLICA TEST ON A STEAM TURBINE IMPELLER STAGE 2 & 6 | PT. SULZER INDONESIA | JULY 2024 | |
| 31 | FAILURE ANALYSIS ON A CRACKED HASTELLOY PIPE OF LINE D-1 OF PTA-1 REACTOR (QIS/MNT/2024/02663) | PT. MITSUBISHI CHEMICAL INDONESIA | JULY 2024 | |
| 32 | REPLICA TEST ON NEW ELBOW AND FLANGE OF HASTELLOY C-276 | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2024 | |
| 33 | REPLICA TEST ON FURNACE BA-108 | PT. CHANDRA ASRI PACIFIC, TBK | JUNE 2024 | |
| 34 | REPLICA TEST ON VESSEL ETHYLENE HOT & COLD | PT. CHANDRA ASRI PACIFIC, TBK | JUNE 2024 | |
| 35 | REPLICA TEST ON HP FLARE TIP | PT. CHANDRA ASRI PACIFIC, TBK | JUNE 2024 | |
| 36 | LABORATORY EXAMINATION ON A ROUND BAR OF HASTELLOY C-276 (SOLUTION HEAT TREATMENT IN TEF) | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2024 | |
| 37 | REPLICA TEST ON FURNACE WATER WALL TUBES OF STEAM BOILER F-680 | PT. MC PET FILM INDONESIA | MAY 2024 | |
| 38 | REPLICA TEST ON THE LEAKED WELD JOINT BETWEEN THE PIPE AND NOZZLE HEAD OF THE PRESSURE GAUGE CONNECTOR (PG-230) | PT. MC PET FILM INDONESIA | MAY 2024 | |
| 39 | REPLICA TEST ON CATALYST COOLER 101-E-501 A/B | PT. NUSAKURA STANDARINDO | MAY 2024 | |
| 40 | REPLICA TEST ON A STEAM TURBINE ROTOR | PT. SULZER INDONESIA | MAY 2024 | |
| 41 | METALLURGICAL ASSESSMENT ON PIPES OF HASTELLOY C-276 (MANUFACTURED AND SOLUTION HEAT TREATED IN CHINA) | PT. MITSUBISHI CHEMICAL INDONESIA | MAY 2024 | |
| 42 | LABORATORY EXAMINATION ON A ROUND BAR OF HASTELLOY C-276 (SOLUTION HEAT TREATMENT IN JAPAN) | PT. MITSUBISHI CHEMICAL INDONESIA | MAY 2024 | |
| 43 | RESULTS OF QUALITY ASSESSMENT ON STAINLESS STEEL PIPE OF SS-304L TYPE | PT. PADANG RAYA CAKRAWALA | MAY 2024 | |
| 44 | FAILURE ANALYSIS ON A LEAKED STEAM COIL PIPING | PT. KUTAI REFINERY NUSANTARA | MAY 2024 | |
| 45 | REPLICA TEST ON FINDING CRACK ON SHELL TO BOTTOM WELD FB 1809 C PFO TANK AND A CRACKED NOZZLE | PT. CHANDRA ASRI PACIFIC, TBK | MAY 2024 | |
| 46 | IN-SITU METALLOGRAPHIC EXAMINATION ON ROUND BAR OF HASTELLOY C-276 | PT. MITSUBISHI CHEMICAL INDONESIA | MAY 2024 | |
| 47 | FAILURE ANALYSIS OF CRACKS ON THE INTERNAL JOINT OF HASTELLOY C-276 PIPE AND NOZZLE N-4 AT LINE PIPE B-1 OF PTA-2 | PT. MITSUBISHI CHEMICAL INDONESIA | APRIL 2024 | |
| 48 | FAILURE ANALYSIS ON A LEAKED CPKO FEED TRANSFER PIPING AT OLEO PLANT OF PT. KRN BALIKPAPAN | PT. KUTAI REFINERY NUSANTARA | APRIL 2024 | |
| 49 | IN-SITU METALLOGRAPHY AND HARDNESS TEST ON BOILER TUBES AT TANJUNG JATI-B POWER PLANT UNIT #1 | PT. RIZA UTAMA TEKNIK | MARCH 2024 | |
| 50 | IN-SITU METALLOGRAPHY DAN HARDNESS TEST PADA SAAT COC UNIT AHU #12 TAHUN 2024 DI KILANG PERTAMINA INTERNASIONAL RU VI BALONGAN | PT. KARYA PATRA UTAMA | MARCH 2024 | |
| 51 | IN-SITU METALLOGRAPHY (REPLICA TEST) AND HARDNESS TEST HASTELLOY C-276 | PT. TOKKI ENGINEERING AND FABRICATION | FEBRUARY 2024 | |
| 52 | METALLURGICAL ASSESSMENT OF HIGH ENERGY PIPING OF BOILER UNIT-7 AT PT. POMI, PAITON POWER PLANT | PT. TUV RHEINLAND INDONESIA | FEBRUARY 2024 | |
| 53 | METALLURGICAL ASSESSMENT ON SOOT BLOWER’S LANCE TUBES OF A COAL-FIRED POWER PLANT | PT. PLN (PERSERO) PUSHARLIS UPPW II | JANUARY 2024 | |
| 54 | LABORATORY METALLOGRAPHIC EXAMINATION ON COATED TEST PLATE (SAMPLE 2) | PT. NUSCACO HASTELOY TURBINE SERVICES | JANUARY 2024 | |
| 55 | IN-SITU METALLOGRAPHY (REPLICA TEST) ON NOZZLE 2ND ROW (HITACHI H-25) | PT. NUSCACO HASTELOY TURBINE SERVICES | JANUARY 2024 | |
| 56 | LABORATORY METALLOGRAPHIC EXAMINATION ON COATED TEST PLATES | PT. NUSCACO HASTELOY TURBINE SERVICES | DECEMBER 2023 | |
| 57 | REPLICA TEST ON PRODUCT PURGE BIN C-5009 | PT. CHANDRA ASRI PETROCHEMICAL, TBK | DECEMBER 2023 | |
| 58 | FAILURE ANALYSIS ON PIPE INWARD DEFORMATION OF WELD JOINT HOLE BETWEEN NOZZLE N-1 (2”) AND LINE PIPE A-1 OF PTA-1 | PT. MITSUBISHI CHEMICAL INDONESIA | DECEMBER 2023 | |
| 59 | METALLOGRAPHIC EXAMINATION OF ROUND BAR MATERIAL OF HASTELLOY C-276 | PT. MITSUBISHI CHEMICAL INDONESIA | DECEMBER 2023 | |
| 60 | FAILURE ANALYSIS OF LEAKED NOZZLE N-5/1½” AT LINE PIPE D-2 OF PTA-1 | PT. MITSUBISHI CHEMICAL INDONESIA | DECEMBER 2023 | |
| 61 | PELATIHAN ONLINE : QA/QC MAINTENANCE/OVERHAUL MESIN DAN PERALATAN MEKANIK PEMBANGKIT, UNTUK PT PLN NP UNIT PJB ACADEMY | PT. PLN NUSANTARA POWER UNIT PJB ACADEMY | DECEMBER 2023 | |
| 62 | PELATIHAN ONLINE : QA/QC MAINTENANCE/OVERHAUL TRANSFORMATOR DAN GENERATOR PEMBANGKIT, UNTUK PT PLN NP UNIT PJB ACADEMY | PT. PLN NUSANTARA POWER UNIT PJB ACADEMY | DECEMBER 2023 | |
| 63 | PELATIHAN OFFLINE : MATERIAL DAN REMAINING LIFE ASSESSMENT (RLA) KOMPONEN/PERALATAN PEMBANGKIT | PT. PJB SERVICES | NOVEMBER 2023 | |
| 64 | FAILURE ANALYSIS ON A NEWLY CONSTRUCTED PIPING SYSTEM | PT. KUTAI REFINERY NUSANTARA | NOVEMBER 2023 | |
| 65 | REPLICA TEST ON HASTELLOY NOZZLE BOSS AND FLANGE BOSS (LINE D/PTA-1) |
PT. MITSUBISHI CHEMICAL INDONESIA | NOVEMBER 2023 | |
| 66 | REPLICA TEST ON HASTELLOY PIPE & ELBOW OF LINE A2, LINE B2 AND LINE D3 (EX PTA-2) | PT. MITSUBISHI CHEMICAL INDONESIA | NOVEMBER 2023 | |
| 67 | REPLICA TEST ON SP.TEES, LINE B1, LINE D3 AND BOSS | PT. MITSUBISHI CHEMICAL INDONESIA | NOVEMBER 2023 | |
| 68 | IN-SITU METALLOGRAPHY (REPLICA TEST) ON AROMATIC PLANT AND PLATFORMING PLANT DURING TA 2023 AT PT. TPPI-TUBAN | PT. RADIANT UTAMA INTERINSCO, TBK | NOVEMBER 2023 | |
| 69 | METALLURGICAL ASSESSMENT ON STAINLESS STEEL CLADDING OVER CARBON STEEL PLATE OF A PROCESSING COLUMN 118D03 AFTER AN EXPLOSION ACCIDENT | PT. SARI DUMAI OLEO | OCTOBER 2023 | |
| 70 | REPLICA TEST ON SPOOL PIPING PTA-1 (LINE A-2, B-1, D-2) | PT. TOKKI ENGINEERING AND FABRICATION | SEPTEMBER 2023 | |
| 71 | REPLICA TEST ON ROUND BAR HASTELLOY C-276 AND NOZZLE N-6/2” | PT. MITSUBISHI CHEMICAL INDONESIA | SEPTEMBER 2023 | |
| 72 | REPLICA TEST ON TURBINE WHEELS (1ST, 2ND & 3RD STAGE) - AFTER HEAT TREATMENT | PT. NUSANTARA TURBIN DAN PROPULSI | SEPTEMBER 2023 | |
| 73 | METALLURGICAL ASSESSMENT OF REHEATER AND SUPERHEATER TUBES AND HEADER OF BOILER UNIT #2 OF TANJUNG JATI-B COAL-FIRED POWER PLANT | PT. RIZA UTAMA TEKNIK | SEPTEMBER 2023 | |
| 74 | FAILURE ANALYSIS OF A FURNACE WATER WALL BOILER TUBE | PT. ECOLAB INDONESIA | SEPTEMBER 2023 | |
| 75 | FAILURE ANALYSIS ON LEAKED NOZZLE AND DEFORMED PIPE-NOZZLE WELD JOINT | PT. MITSUBISHI CHEMICAL INDONESIA | SEPTEMBER 2023 | |
| 76 | REPLICA TEST ON SHROUD BLOCK AND NOZZLE SEGMENT OF GT HGP COMPONENTS | PT. SULZER INDONESIA | SEPTEMBER 2023 | |
| 77 | LABORATORY EXAMINATION ON HASTELLOY PIPE SAMPLES (B-1 2022/PTA-2 AND C-1 2011/PTA-1) | PT. MITSUBISHI CHEMICAL INDONESIA | AUGUST 2023 | |
| 78 | FAILURE ANALYSIS OF A DAMAGED WATER WALL BOILER TUBE | PT. ECOLAB INDONESIA | AUGUST 2023 | |
| 79 | LABORATORY METALLOGRAPHY & HARDNESS TEST ON COATED TEST PIECES | PT. NUSCACO HASTELOY TURBINE SERVICES | AUGUST 2023 | |
| 80 | IN-SITU METALLOGRAPHY (REPLICA TEST) ON TURBINE WHEELS (1ST, 2ND & 3RD STAGE) AND AXIAL COMPRESSOR & CENTRIFUGAL COMPRESSOR WHEELS | PT. NUSANTARA TURBIN DAN PROPULSI | JULY 2023 | |
| 81 | LABORATORY EXAMINATION ON HASTELLOY C-276 PIPE (SOLUTION ANNEALING IN JAPAN) | PT. MITSUBISHI CHEMICAL INDONESIA | JULY 2023 | |
| 82 | IN-SITU METALLOGRAPHY BY REPLICA TEST ON BOILER A | PT. CHANDRA ASRI PETROCHEMICAL, TBK | JULY 2023 | |
| 83 | SEM EXAMINATION AND EDS ANALYSIS ON SOME METALLOGRAPHIC SAMPLES OF HASTELLOY C-276 PIPE (SOLUTION ANNEALING IN JAPAN) | PT. MITSUBISHI CHEMICAL INDONESIA | JULY 2023 | |
| 84 | REPLICA TEST ON AUSTENITIC STAINLESS STEEL PIPES | PT. TOKKI ENGINEERING AND FABRICATION | JULY 2023 | |
| 85 | REPLICA TEST ON EMULSION JET LANCES | PT. GMF AEROASIA | JUNE 2023 | |
| 86 | REPLICA TEST ON EV BURNER | PT. GMF AEROASIA | JUNE 2023 | |
| 87 | IN-SITU METALLOGRAPHY DAN HARDNESS TEST PADA SAAT COC UNIT AHU #13 TAHUN 2023 DI KILANG PERTAMINA RU VI BALONGAN | PT. KARYA PATRA UTAMA | JUNE 2023 | |
| 88 | SEM EXAMINATION AND EDS ANALYSIS ON OUTLET PIPE & ELBOW OF LINE #A2 OF REACTOR PTA-1 | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2023 | |
| 89 | FRACTURE ANALYSIS ON OUTLET PIPE & ELBOW OF LINE #A2 OF REACTOR PTA-1 | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2023 | |
| 90 | REPLICA TEST ON SPECIAL TEES | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2023 | |
| 91 | REPLICA TEST ON NEW HASTELLOY PIPES AND ELBOWS (SOLUTION TREATMENT IN JAPAN) | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2023 | |
| 92 | REPLICA TEST ON HASTELLOY PIPE AND ELBOW OF LINE #D1 OF REACTOR PTA-1 | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2023 | |
| 93 | FAILURE ANALYSIS OF A CRACKED PTA DRYER TUBE | PT. MITSUBISHI CHEMICAL INDONESIA | JUNE 2023 | |
| 94 | REPLICA TEST ON HASTELLOY PIPE AND ELBOW OF LINE #A2 OF REACTOR PTA-1, | PT. MITSUBISHI CHEMICAL INDONESIA | MAY 2023 | |
| 95 | ANALYSIS OF REPLICA TEST RESULTS PERFORMED IN JAPAN ON HASTELLOY C-276 PIPES & ELBOWS | PT. MITSUBISHI CHEMICAL INDONESIA | MAY 2023 | |
| 96 | REPLICA TEST ON A FRACTURED UCC1 MELT PUMP ROTOR Y-7004 | PT. CHANDRA ASRI PETROCHEMICAL, TBK | MAY 2023 | |
| 97 | IN-SITU METALLOGRAPHY BY REPLICA TEST ON BOILER A | PT. CHANDRA ASRI PETROCHEMICAL, TBK | MAY 2023 | |
| 98 | IN-SITU METALLOGRAPHY BY REPLICA TEST ON CASTING PUMP COMPONENTS | PT. TRACON INDUSTRI | MARCH 2023 | |
| 99 | REPLICA TEST ON VARIOUS PLANT EQUIPMENT | PT. MITSUBISHI CHEMICAL INDONESIA | MARCH 2023 | |
| 100 | IN-SITU METALLOGRAPHY (REPLICA TEST) ON NOZZLE 2ND ROW (NON HEAT TREATMENT) | PT. NUSCACO HASTELOY TURBINE SERVICES | FEBRUARY 2023 | |
| 101 | REPLICA TEST ON TWO SP. TEES AFTER SOLUTION ANNEALING | PT. MITSUBISHI CHEMICAL INDONESIA | FEBRUARY 2023 | |
| 102 | IN-SITU METALLOGRAPHY (REPLICA TEST) ON ENTRY SEGMENT ROW-A & ROW-B AND HOLDING RING | PT. NUSCACO HASTELOY TURBINE SERVICES | FEBRUARY 2023 | |
| 103 | METALLURGICAL ASSESSMENT OF ALUMINUM RODS (EC GRADE, DIAMETER ± 9.5 MM) | PT. TEMBAGA MULIA SEMANAN, TBK | FEBRUARY 2023 | |
| 104 | REPLICA TEST ON FURNACE BA 102 | PT. CHANDRA ASRI PETROCHEMICAL, TBK | FEBRUARY 2023 | |
| 105 | SEM/EDS ANALYSIS AND METALLOGRAPHIC EXAMINATION ON COPPER WIRE BREAK (DIAMETER 2.08 MM) | PT. TEMBAGA MULIA SEMANAN, TBK | JANUARY 2023 | |
| 106 | REPLICA TEST ON PROCESSING COLUMNS (6-C-1, 6-C-2, 6-C-3 AND 6-C-4) | PT. UNILEVER OLEOCHEMICAL INDONESIA | JANUARY 2023 | |
| 107 | CONDITION ASSESSMENT OF ROASTING DRUM OF COCOA NIBS, MAKASAR | PT. MARS SYMBIOSCIENCE INDONESIA | JANUARY 2023 | |