ลำดับที่
|
Standard Sectional Dimension
|
Sectional Area cm2
|
Unit Weight kg/m.
|
Thickness mm.
|
Width mm.
|
1
|
4.5
|
25
|
1.125
|
0.88
|
2
|
4.5
|
32
|
1.44
|
1.13
|
3
|
4.5
|
38
|
1.71
|
1.34
|
4
|
4.5
|
44
|
1.98
|
1.55
|
5
|
4.5
|
50
|
2.25
|
1.77
|
6
|
6
|
25
|
1.5
|
1.18
|
7
|
6
|
32
|
1.92
|
1.51
|
8
|
6
|
38
|
2.28
|
1.79
|
9
|
6
|
44
|
2.64
|
2.07
|
10
|
6
|
50
|
3
|
2.36
|
11
|
6
|
65
|
3.9
|
3.06
|
12
|
6
|
75
|
4.5
|
3.53
|
13
|
6
|
90
|
5.4
|
4.24
|
14
|
6
|
100
|
6
|
4.71
|
15
|
6
|
125
|
7.5
|
5.89
|
16
|
8
|
25
|
2
|
1.57
|
17
|
8
|
32
|
2.56
|
2.01
|
18
|
8
|
38
|
3.04
|
2.39
|
19
|
8
|
44
|
3.52
|
2.76
|
20
|
8
|
50
|
1
|
3.14
|
21
|
8
|
65
|
5.2
|
4.08
|
22
|
8
|
75
|
6
|
4.71
|
23
|
8
|
90
|
7.2
|
5.65
|
24
|
8
|
100
|
8
|
6.28
|
25
|
8
|
125
|
10
|
7.85
|
26
|
9
|
25
|
2.25
|
1.77
|
27
|
9
|
32
|
2.28
|
2.26
|
28
|
9
|
38
|
3.42
|
2.68
|
29
|
9
|
44
|
3.96
|
3.11
|
30
|
9
|
50
|
4.5
|
3.53
|
31
|
9
|
65
|
5.85
|
4.59
|
32
|
9
|
75
|
6.75
|
5.3
|
33
|
9
|
90
|
8.1
|
6.36
|
34
|
9
|
100
|
9
|
7.06
|
35
|
9
|
125
|
11.25
|
8.83
|
36
|
9
|
150
|
13.5
|
10.6
|
37
|
9
|
180
|
16.2
|
12.7
|
38
|
9
|
200
|
18
|
14.1
|
39
|
9
|
230
|
20.7
|
16.2
|
40
|
9
|
250
|
22.5
|
17.7
|
41
|
12
|
25
|
3
|
2.36
|
42
|
12
|
32
|
3.81
|
3.01
|
43
|
12
|
38
|
4.56
|
3.58
|
44
|
12
|
44
|
5.28
|
4.14
|
45
|
12
|
50
|
6
|
4.71
|
46
|
12
|
65
|
7.8
|
6.12
|
47
|
12
|
75
|
9
|
7.06
|
48
|
12
|
90
|
10.8
|
8.48
|
49
|
12
|
100
|
12
|
9.42
|
50
|
12
|
125
|
15
|
11.8
|
51
|
12
|
150
|
18
|
14.1
|
52
|
12
|
180
|
21.6
|
17
|
53
|
12
|
200
|
24
|
18.8
|
54
|
12
|
230
|
27.6
|
21.7
|
55
|
12
|
250
|
30
|
23.6
|
56
|
12
|
280
|
33.6
|
26.4
|
57
|
12
|
300
|
36
|
28.3
|
58
|
16
|
32
|
5.12
|
4.02
|
59
|
16
|
38
|
6.08
|
4.77
|
60
|
16
|
44
|
7.04
|
5.53
|
61
|
16
|
50
|
8
|
6.28
|
62
|
16
|
65
|
10.4
|
8.16
|
63
|
16
|
75
|
12
|
9.42
|
64
|
16
|
90
|
14.4
|
11.3
|
65
|
16
|
100
|
16
|
12.6
|
66
|
16
|
125
|
20
|
15.7
|
67
|
16
|
150
|
24
|
18.8
|
68
|
16
|
180
|
28.8
|
22.6
|
69
|
16
|
200
|
32
|
25.1
|
70
|
16
|
230
|
36.8
|
28.9
|
71
|
16
|
250
|
40
|
31.4
|
72
|
16
|
280
|
44.8
|
35.2
|
73
|
16
|
300
|
48
|
37.7
|
74
|
19
|
38
|
7.22
|
5.67
|
75
|
19
|
44
|
8.36
|
6.56
|
76
|
19
|
50
|
9.5
|
7.46
|
77
|
19
|
65
|
12.35
|
9.69
|
78
|
19
|
75
|
14.25
|
11.2
|
79
|
19
|
90
|
17.1
|
13.4
|
80
|
19
|
100
|
19
|
14.9
|
81
|
19
|
125
|
23.75
|
18.6
|
82
|
19
|
150
|
28.5
|
22.4
|
83
|
19
|
180
|
34.2
|
26.8
|
84
|
19
|
200
|
38
|
29.8
|
85
|
19
|
230
|
43.7
|
34.3
|
86
|
19
|
250
|
47.5
|
37.3
|
87
|
19
|
280
|
53.2
|
41.8
|
88
|
19
|
300
|
57
|
44.7
|
89
|
22
|
50
|
11
|
8.64
|
90
|
22
|
65
|
14.3
|
11.2
|
91
|
22
|
75
|
16.5
|
13
|
92
|
22
|
90
|
19.8
|
15.5
|
93
|
22
|
100
|
22
|
17.3
|
94
|
22
|
125
|
27.5
|
21.6
|
95
|
22
|
150
|
33
|
25.9
|
96
|
22
|
180
|
39.6
|
31.1
|
97
|
22
|
200
|
44
|
34.5
|
98
|
22
|
230
|
50.6
|
39.7
|
99
|
22
|
250
|
55
|
43.2
|
100
|
22
|
280
|
61.6
|
48.4
|
101
|
22
|
300
|
66
|
51.8
|
102
|
25
|
50
|
12.5
|
9.81
|
103
|
25
|
65
|
16.25
|
12.8
|
104
|
25
|
75
|
18.75
|
14.7
|
105
|
25
|
90
|
22.5
|
17.7
|
106
|
25
|
100
|
25
|
19.6
|
107
|
25
|
125
|
31.25
|
24.5
|
108
|
25
|
150
|
37.5
|
29.4
|
109
|
25
|
180
|
45
|
35.3
|
110
|
25
|
200
|
50
|
39.2
|
111
|
25
|
230
|
57.5
|
45.1
|
112
|
25
|
250
|
62.5
|
49.1
|
113
|
25
|
280
|
70
|
55
|
114
|
25
|
300
|
75
|
58.9
|
115
|
28
|
100
|
28
|
22
|
116
|
28
|
125
|
35
|
27.5
|
117
|
28
|
150
|
42
|
33
|
118
|
28
|
180
|
50.4
|
39.6
|
119
|
28
|
200
|
56
|
44
|
120
|
28
|
230
|
64.4
|
550.6
|
121
|
28
|
280
|
78.4
|
61.5
|
122
|
28
|
300
|
84
|
65.9
|
123
|
32
|
100
|
32
|
25.1
|
124
|
32
|
125
|
40
|
31.4
|
125
|
32
|
150
|
48
|
37.7
|
126
|
32
|
180
|
57.6
|
45.2
|
127
|
32
|
200
|
64
|
50.2
|
128
|
32
|
230
|
73.6
|
57.8
|
129
|
32
|
250
|
80
|
62.8
|
130
|
32
|
280
|
89.6
|
70.3
|
131
|
32
|
300
|
96
|
75.4
|
132
|
36
|
100
|
36
|
28.3
|
133
|
36
|
125
|
45
|
35.3
|
134
|
36
|
150
|
54
|
42.4
|
135
|
36
|
180
|
64.8
|
50.9
|
136
|
36
|
200
|
72
|
56.5
|
137
|
36
|
230
|
82.8
|
65
|
138
|
36
|
250
|
90
|
70.6
|
139
|
36
|
280
|
100.8
|
79.1
|
140
|
36
|
300
|
108
|
84.8
|