●尺寸偏差
外徑、壁厚、重量允許偏差
項目 Item |
允許偏差 Tolerances |
管體
Pipe Body |
外徑 Outside Diameter |
D ≤ 101.6mm ± 0.79mm
D ≥ 114.3mm -0.50%D~+1.00D%
|
壁厚 Wall Thickness |
- 12.5% |
重量
Weight |
單根 Single Lengths |
-3.5%~+6.5% |
●規(guī)格表 Size
規(guī)格外徑
Size Designation |
公稱重量 Calculated
Weight |
計算重量 Calculated
Weight |
鋼級 Grade |
壁厚
Wall Thickness |
加厚形式
( 見注 )
Upset End,for
Weld-on Tool
Joints(see Note) |
in |
mm |
lb/ft |
kg/m |
in |
mm |
2 3/8 ″ |
60.3 |
6.65 |
6.26 |
9.32 |
E.X.G.S |
0.280 |
7.11 |
EU |
2 7/8 ″ |
73.0 |
10.40 |
9.72 |
14.48 |
E.X.G.S |
0.362 |
9.19 |
EU |
3 1/2 ″ |
88.9 |
13.30 |
12.31 |
18.34 |
E.X.G.S |
0.368 |
9.35 |
EU |
3 1/2 ″ |
88.9 |
15.50 |
14.63 |
21.79 |
E.X.G.S |
0.449 |
11.40 |
EU |
4 ″ |
101.6 |
14.00 |
12.93 |
19.26 |
E.X.G.S |
0.330 |
8.38 |
EU |
4 1/2 ″ |
114.3 |
16.60 |
14.98 |
22.31 |
E.X.G.S |
0.337 |
8.56 |
EU |
4 1/2 ″ |
114.3 |
20.00 |
18.69 |
27.84 |
E.X.G.S |
0.430 |
10.92 |
EU |
5 ″ |
127 |
19.50 |
17.93 |
26.71 |
E.X.G.S |
0.362 |
9.19 |
IEU |
5 ″ |
127 |
25.60 |
24.03 |
35.79 |
E.X.G.S |
0.500 |
12.70 |
IEU |
5 1/2 ″ |
139.7 |
21.90 |
19.81 |
29.51 |
E.X.G.S |
0.361 |
9.17 |
IEU |
5 1/2 ″ |
139.7 |
24.70 |
22.54 |
33.57 |
E.X.G.S |
0.415 |
10.54 |
IEU |
金剛石巖芯鉆探用無縫鋼管的力學(xué)性能
鋼 級 |
屈服點ós/MPa |
抗拉強度ób/MPa |
伸長率δ5(%) |
≥ |
|
390 |
635 |
14 |
|
490 |
685 |
12 |
|
540 |
735 |
12 |
DZ60 |
590 |
765 |
12 |
|
635 |
785 |
12 |
DZ75 |
735 |
835 |
10 |
注:1.屈服點小于或等于590MPa的鋼管,須經(jīng)正火交貨;屈服點大于590MPa的鋼管須經(jīng)正火加回火交貨。熱軋鋼管可用控制終軋溫度代替正火。
2.經(jīng)雙方協(xié)議,也可采用調(diào)質(zhì)處理交貨。
(4)用途適用于制造用于金剛石鉆探用鉆桿、巖心管、套管。
注 : EU- 外加厚 ; IEU- 內(nèi)外加厚 |