Nilai kekerasan spesimen pengelasan PWHT 300 Nilai kekerasan spesimen pengelasan PWHT 450

d. D = = + 2 17 16 16,5 strip = 0,589 mm Nilai kekerasan = 17 , 160 0,589 30 x 854 , 1 2 = VHN Rata-rata = 95 , 171 4 17 , 160 34 , 170 79 , 175 50 , 181 = + + + VHN

4. Nilai kekerasan spesimen pengelasan PWHT 300

C Daerah logam las a. D = = + 2 18 18 18 strip = 0,643 mm Nilai kekerasan = 59 , 134 0,643 30 x 854 , 1 2 = VHN b. D = = + 2 18 5 , 18 18,25 strip = 0,652 mm Nilai kekerasan = 92 , 130 0,652 30 x 854 , 1 2 = VHN c. D = = + 2 18 18 18 strip = 0,643 mm Nilai kekerasan = 59 , 134 0,643 30 x 854 , 1 2 = VHN d. D = = + 2 18 5 , 17 17,75 strip = 0,634 mm Nilai kekerasan = 40 , 138 0,634 30 x 854 , 1 2 = VHN Rata-rata = 63 , 134 4 40 , 138 59 , 134 92 , 130 59 , 134 = + + + VHN Daerah batas logam las dengan HAZ a. D = = + 2 16 17 16,5 strip = 0,589 mm Nilai kekerasan = 17 , 160 0,589 30 x 854 , 1 2 = VHN Daerah HAZ a. D = = + 2 16 17 16,5 strip = 0,589 mm Nilai kekerasan = 17 , 160 0,589 30 x 854 , 1 2 = VHN b. D = = + 2 16 15 15,5 strip = 0,554 mm Nilai kekerasan = 50 , 181 0,554 30 x 854 , 1 2 = VHN Rata-rata = 84 , 170 2 50 , 181 17 , 160 = + VHN Daerah batas HAZ dengan logam induk a. D = = + 2 16 16 16 strip = 0,571 mm Nilai kekerasan = 34 , 170 0,571 30 x 854 , 1 2 = VHN Daerah logam induk a. D = = + 2 17 16 16,5 strip = 0,589 mm Nilai kekerasan = 17 , 160 0,589 30 x 854 , 1 2 = VHN b. D = = + 2 16 5 , 17 16,75 strip = 0,598 mm Nilai kekerasan = 42 , 155 0,598 30 x 854 , 1 2 = VHN c. D = = + 2 17 17 17 strip = 0,607 mm Nilai kekerasan = 89 , 150 0,607 30 x 854 , 1 2 = VHN d. D = = + 2 17 17 17 strip = 0,607 mm Nilai kekerasan = 89 , 150 0,607 30 x 854 , 1 2 = VHN Rata-rata = 34 , 154 4 89 , 150 89 , 150 42 , 155 17 , 160 = + + + VHN

5. Nilai kekerasan spesimen pengelasan PWHT 450

C Daerah logam las a. D = = + 2 18 5 , 18 18,25 strip = 0,652 mm Nilai kekerasan = 92 , 130 0,652 30 x 854 , 1 2 = VHN b. D = = + 2 18 18 18 strip = 0,643 mm Nilai kekerasan = 59 , 134 0,643 30 x 854 , 1 2 = VHN c. D = = + 2 18 5 , 18 18,25 strip = 0,652 mm Nilai kekerasan = 92 , 130 0,652 30 x 854 , 1 2 = VHN d. D = = + 2 18 5 , 17 17,75 strip = 0,634 mm Nilai kekerasan = 40 , 138 0,634 30 x 854 , 1 2 = VHN Rata-rata = 71 , 133 4 40 , 138 92 , 130 59 , 134 92 , 130 = + + + VHN Daerah batas logam las dengan HAZ a. D = = + 2 16 15 15,5 strip = 0,554 mm Nilai kekerasan = 50 , 181 0,554 30 x 854 , 1 2 = VHN Daerah HAZ a. D = = + 2 16 16 16 strip = 0,571 mm Nilai kekerasan = 34 , 170 0,571 30 x 854 , 1 2 = VHN b. D = = + 2 17 16 16,5 strip = 0,589 mm Nilai kekerasan = 17 , 160 0,589 30 x 854 , 1 2 = VHN Rata-rata = 26 , 165 2 17 , 160 34 , 170 = + VHN Daerah batas HAZ dengan logam induk a. D = = + 2 16 16 16 strip = 0,571 mm Nilai kekerasan = 34 , 170 0,571 30 x 854 , 1 2 = VHN Daerah logam induk a. D = = + 2 17 17 17 strip = 0,607 mm Nilai kekerasan = 84 , 150 0,607 30 x 854 , 1 2 = VHN b. D = = + 2 16 5 , 16 16,25 strip = 0,580 mm Nilai kekerasan = 14 , 165 0,580 30 x 854 , 1 2 = VHN c. D = = + 2 16 5 , 16 16,25 strip = 0,580 mm Nilai kekerasan = 14 , 165 0,580 30 x 854 , 1 2 = VHN d. D = = + 2 17 16 16,5 strip = 0,589 mm Nilai kekerasan = 17 , 160 0,589 30 x 854 , 1 2 = VHN Rata-rata = 34 , 160 4 17 , 160 14 , 165 14 , 165 84 , 150 = + + + VHN

6. Nilai kekerasan spesimen pengelasan PWHT 600