Các size sản xuất từ DN10- DN200.
TIÊU CHUẨN KỸ THUẬT
1. Bảng quy chuẩn trọng lượng Ống thép mạ kẽm Việt Đức theo tiêu chuẩn BS 1387/1985
GALVANIZED PIPES - STANDARD BS 1387-1985 |
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C |
Mn |
P |
S |
Độ dày lớp mạ / Zinc-coat thickness |
Phương pháp mạ |
||
max |
max |
max |
max |
µm |
gr./m2 |
oz./ft2 |
Zinc-coat Method |
% |
% |
% |
% |
> 35 |
>= 360 |
>= 1.18 |
Mạ nhúng nóng |
0.2 |
1.2 |
0.045 |
0.045 |
Hot-dip Galvanizing |
Trắc nghiệm độ bền kéo / Tensile test |
Trắc nghiệm độ uốn / Bend test |
Trắc nghiệm nén phẳng |
Kiểm tra độ kín khít/ Leak tightness test |
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Flattening test |
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Độ bền kéo |
Điểm chảy |
Độ giãn dài tương đối |
Phân loại |
Goc uốn |
Bán kính trong |
Vị trí mối hàn |
Mối hàn |
Bề mặt ống |
|
T.strength |
Yield point |
Elongation |
Category |
Angle of bending |
Inside radius |
Weld position |
Weld point |
Non-weld point |
|
|
|
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|
Kgf/mm2 |
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Kgf/mm2 |
(N/mm2) |
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Min. 28 |
Min. 20 |
Min. 30 |
Ống mạ |
90o |
8 D |
90o |
0.75 D |
0.60 D |
51 Kgf/cm2 |
-285 |
-196 |
Galva. pipe |
Class A1 (siêu nhẹ)
Nominal Dimension DN |
Outside Diameter |
Wall |
Calculated |
|||
Dmax |
Dmin |
Thickness |
Plain End |
Threads & Couplings |
||
mm. |
mm. |
mm. |
(kg/m.) |
(kg/m.) |
||
1/2 |
15 |
21.4 |
21 |
1.9 |
0.904 | 0.922 |
3/4 |
20 |
26.9 |
26.4 |
2.1 |
1.275 | 1.296 |
1 |
25 |
33.8 |
33.2 |
2.3 |
1.770 | 1.803 |
1 1/4 |
32 |
42.5 |
41.9 |
2.3 |
2.263 | 2.301 |
1 1/2 |
40 |
48.4 |
47.8 |
2.5 |
2.811 | 2.855 |
2 |
50 |
60.2 |
59.6 |
2.6 |
3.674 | 3.726 |
2 1/2 |
65 |
76 |
75.2 |
2.9 |
5.199 | 5.275 |
3 |
80 |
88.7 |
87.9 |
2.9 |
6.107 | 6.191 |
4 |
100 |
113.9 |
113 |
3.2 |
8.704 | 8.815 |
Light Class (nhẹ)
Nominal Dimension DN |
Outside Diameter |
Wall |
Calculated |
|||
Dmax |
Dmin |
Thickness |
Plain End |
Threads & Couplings |
||
mm. |
mm. |
mm. |
(kg/m.) |
(kg/m.) |
||
1/2 |
15 |
21.4 |
21 |
2 |
0.95 |
0.96 |
3/4 |
20 |
26.9 |
26.4 |
2.3 |
1.38 |
1.39 |
1 |
25 |
33.8 |
33.2 |
2.6 |
1.98 |
2 |
1 1/4 |
32 |
42.5 |
41.9 |
2.6 |
2.54 |
2.57 |
1 1/2 |
40 |
48.4 |
47.8 |
2.9 |
3.23 |
3.27 |
2 |
50 |
60.2 |
59.6 |
2.9 |
4.08 |
4.15 |
2 1/2 |
65 |
76 |
75.2 |
3.2 |
5.71 |
5.83 |
3 |
80 |
88.7 |
87.9 |
3.2 |
6.72 |
6.89 |
4 |
100 |
113.9 |
113 |
3.6 |
9.75 |
10 |
Medium Class (trung bình)
Nominal Dimension DN |
Outside Diameter |
Wall |
Calculated |
|||
Dmax |
Dmin |
Thickness |
Plain End |
Threads & Couplings |
||
mm. |
mm. |
mm. |
(kg/m.) |
(kg/m.) |
||
1/2 |
15 |
21.7 |
21.1 |
2.6 |
1.21 |
1.22 |
3/4 |
20 |
27.2 |
26.6 |
2.6 |
1.56 |
1.57 |
1 |
25 |
34.2 |
33.4 |
3.2 |
2.41 |
2.43 |
1 1/4 |
32 |
42.9 |
42.1 |
3.2 |
3.1 |
3.13 |
1 1/2 |
40 |
48.8 |
48 |
3.2 |
3.57 |
3.61 |
2 |
50 |
60.8 |
59.8 |
3.6 |
5.03 |
5.1 |
2 1/2 |
65 |
76.6 |
75.4 |
3.6 |
6.43 |
6.55 |
3 |
80 |
89.5 |
88.1 |
4 |
8.37 |
8.54 |
4 |
100 |
114.9 |
113.3 |
4.5 |
12.2 |
12.5 |
5 |
125 |
140.6 |
138.7 |
5 |
16.6 |
17.1 |
6 |
150 |
166.1 |
164.1 |
5 |
19.7 |
20.3 |
Heavy Class
Nominal Dimension DN |
Outside Diameter |
Wall |
Calculated |
|||
Dmax |
Dmin |
Thickness |
Plain End |
Threads & Couplings |
||
mm. |
mm. |
mm. |
(kg/m.) |
(kg/m.) |
||
1/2 |
15 |
21.7 |
21.1 |
3.2 |
1.44 |
1.45 |
3/4 |
20 |
27.2 |
26.6 |
3.2 |
1.87 |
1.88 |
1 |
25 |
34.2 |
33.4 |
4 |
2.94 |
2.96 |
1 1/4 |
32 |
42.9 |
42.1 |
4 |
3.8 |
3.83 |
1 1/2 |
40 |
48.8 |
48 |
4 |
4.38 |
4.42 |
2 |
50 |
60.8 |
59.8 |
4.5 |
6.19 |
6.26 |
2 1/2 |
65 |
76.6 |
75.4 |
4.5 |
7.93 |
8.05 |
3 |
80 |
89.5 |
88.1 |
5 |
10.3 |
10.5 |
4 |
100 |
114.9 |
113.3 |
5.4 |
14.5 |
14.8 |
5 |
125 |
140.6 |
138.7 |
5.4 |
17.9 |
18.4 |
6 |
150 |
166.1 |
164.1 |
5.4 |
21.3 |
21.9 |
Ghi chú: 1 inch = 25.4 millimeters (mm)
2. Bảng quy chuẩn trọng lượng, độ dầy ống thép đen và ống mạ kẽm tiêu chuẩn ASTM A53
Bảng này ứng với một số tiêu chuẩn như: ASTM A106, A53, API 5L, A312, ASME...
Ống từ ⅛" tới 3½" (từ DN6 - 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" tới 8" (từ DN100 - 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" tới 24" (từ DN250 - 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 |
Ghi chú: bảng này chỉ mang tính chất tham khảo.
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