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