|
Bảng ứng với những tiêu chuẩn như: ASTM A106, A53, API 5L, A312, ASME…
Ống từ ⅛” tới 3½” (từ DN6 đến DN90)
|
Inch
|
DN
|
ĐK ngoài
(mm)
|
Độ dày thành ống (mm)
|
|
SCH 5
|
SCH 10
|
SCH 30
|
SCH 40
|
SCH 80
|
SCH 120
|
XXS
|
|
⅛
|
6
|
10,29 mm
|
0,889 mm
|
1,245 mm
|
1,448 mm
|
1,727 mm
|
2,413 mm
|
—
|
—
|
|
¼
|
8
|
13,72 mm
|
1,245 mm
|
1,651 mm
|
1,854 mm
|
2,235 mm
|
3,023 mm
|
—
|
—
|
|
⅜
|
10
|
17,15 mm
|
1,245 mm
|
1,651 mm
|
1,854 mm
|
2,311 mm
|
3,200 mm
|
—
|
—
|
|
½
|
15
|
21,34 mm
|
1,651 mm
|
2,108 mm
|
—
|
2,769 mm
|
3,734 mm
|
—
|
7,468 mm
|
|
¾
|
20
|
26,67 mm
|
1,651 mm
|
2,108 mm
|
—
|
2,870 mm
|
3,912 mm
|
—
|
7,823 mm
|
|
1
|
25
|
33,40 mm
|
1,651 mm
|
2,769 mm
|
—
|
3,378 mm
|
4,547 mm
|
—
|
9,093 mm
|
|
1¼
|
32
|
42,16 mm
|
1,651 mm
|
2,769 mm
|
2,972 mm
|
3,556 mm
|
4,851 mm
|
—
|
9,703 mm
|
|
1½
|
40
|
48,26 mm
|
1,651 mm
|
2,769 mm
|
3,175 mm
|
3,683 mm
|
5,080 mm
|
—
|
10,160 mm
|
|
2
|
50
|
60,33 mm
|
1,651 mm
|
2,769 mm
|
3,175 mm
|
3,912 mm
|
5,537 mm
|
6,350 mm
|
11,074 mm
|
|
2½
|
65
|
73,03 mm
|
2,108 mm
|
3,048 mm
|
4,775 mm
|
5,156 mm
|
7,010 mm
|
7,620 mm
|
14,021 mm
|
|
3
|
80
|
88,90 mm
|
2,108 mm
|
3,048 mm
|
4,775 mm
|
5,486 mm
|
7,620 mm
|
8,890 mm
|
15,240 mm
|
|
3½
|
90
|
101,60 mm
|
2,108 mm
|
3,048 mm
|
4,775 mm
|
5,740 mm
|
8,077 mm
|
—
|
16,154 mm
|
Ống từ 4″ đến 8″ (từ DN100 đến DN200)
|
Inch
|
DN
mm
|
ĐK ngoài
(mm)
|
Độ dày thành ống (mm)
|
|
SCH 5
|
SCH 10
|
SCH 20
|
SCH 30
|
SCH 40
STD
|
SCH 60
|
SCH 80
|
SCH 100
|
SCH 120
|
SCH 140
|
SCH 160
|
|
4
|
100
|
114,30 mm
|
2,108 mm
|
3,048 mm
|
—
|
4,775 mm
|
6,020 mm
|
7,137 mm
|
8,560 mm
|
—
|
11,100 mm
|
—
|
13,487 mm
|
|
4½
|
115
|
127,00 mm
|
—
|
—
|
—
|
—
|
6,274 mm
|
—
|
9,017 mm
|
—
|
—
|
—
|
—
|
|
5
|
125
|
141,30 mm
|
2,769 mm
|
3,404 mm
|
—
|
—
|
6,553 mm
|
—
|
9,525 mm
|
—
|
12,700 mm
|
—
|
15,875 mm
|
|
6
|
150
|
168,28 mm
|
2,769 mm
|
3,404 mm
|
—
|
—
|
7,112 mm
|
—
|
10,973 mm
|
—
|
14,275 mm
|
—
|
18,263 mm
|
|
8
|
200
|
219,08 mm
|
2,769 mm
|
3,759 mm
|
6,350 mm
|
7,036 mm
|
8,179 mm
|
10,312 mm
|
12,700 mm
|
15,062 mm
|
18,237 mm
|
20,625 mm
|
23,012 mm
|
Ống từ 10″ đến 24″ (từ DN250 đến DN600)
|
Inch
|
DN
mm
|
ĐK ngoài
(mm)
|
Độ dày thành ống (mm)
|
|
SCH 5s
|
SCH 5
|
SCH 10s
|
SCH 10
|
SCH 20
|
SCH 30
|
|
10
|
250
|
273,05 mm
|
3,404 mm
|
3,404 mm
|
4,191 mm
|
4,191 mm
|
6,350 mm
|
7,798 mm
|
|
12
|
300
|
323,85 mm
|
3,962 mm
|
4,191 mm
|
4,572 mm
|
4,572 mm
|
6,350 mm
|
8,382 mm
|
|
14
|
350
|
355,60 mm
|
3,962 mm
|
3,962 mm
|
4,775 mm
|
6,350 mm
|
7,925 mm
|
9,525 mm
|
|
16
|
400
|
406,40 mm
|
4,191 mm
|
4,191 mm
|
4,775 mm
|
6,350 mm
|
7,925 mm
|
9,525 mm
|
|
18
|
450
|
457,20 mm
|
4,191 mm
|
4,191 mm
|
4,775 mm
|
6,350 mm
|
7,925 mm
|
11,100 mm
|
|
20
|
500
|
508,00 mm
|
4,775 mm
|
4,775 mm
|
5,537 mm
|
6,350 mm
|
9,525 mm
|
12,700 mm
|
|
24
|
600
|
609,60 mm
|
5,537 mm
|
5,537 mm
|
6,350 mm
|
6,350 mm
|
9,525 mm
|
14,275 mm
|
|
Inch
|
Độ dày thành ống (mm)
|
|
SCH 40s
|
SCH 40
|
SCH 60
|
SCH 80s
|
SCH 80
|
SCH 100
|
SCH 120
|
SCH 140
|
SCH 160
|
|
10
|
9,271 mm
|
9,271 mm
|
12,700 mm
|
12,700 mm
|
15,062 mm
|
18,237 mm
|
21,412 mm
|
25,400 mm
|
28,575 mm
|
|
12
|
9,525 mm
|
10,312 mm
|
12,700 mm
|
12,700 mm
|
17,450 mm
|
21,412 mm
|
25,400 mm
|
28,575 mm
|
33,325 mm
|
|
14
|
9,525 mm
|
11,100 mm
|
15,062 mm
|
12,700 mm
|
19,050 mm
|
23,800 mm
|
27,762 mm
|
31,750 mm
|
35,712 mm
|
|
16
|
9,525 mm
|
12,700 mm
|
16,662 mm
|
12,700 mm
|
21,412 mm
|
26,187 mm
|
30,937 mm
|
36,500 mm
|
40,462 mm
|
|
18
|
9,525 mm
|
14,275 mm
|
19,050 mm
|
12,700 mm
|
23,800 mm
|
29,362 mm
|
34,925 mm
|
39,675 mm
|
45,237 mm
|
|
20
|
9,525 mm
|
15,062 mm
|
20,625 mm
|
12,700 mm
|
26,187 mm
|
32,512 mm
|
38,100 mm
|
44,450 mm
|
49,987 mm
|
|
24
|
9,525 mm
|
17,450 mm
|
24,587 mm
|
12,700 mm
|
30,937 mm
|
38,887 mm
|
46,025 mm
|
52,375 mm
|
59,512 mm
|
|
