产品简介 PRODUCT INTRODUCTION
美国标准 AMERICAN STANDARDS
标准接箍：Standard Coupling
● 尺寸偏差：Dimensions and Tolerances
外径、壁厚、重量允许偏差 Outside Diameter, Wall Thickness and Weight Tolerances：
项目Item |
允许偏差Tolerance
|
|
外径
Outside Diameter
|
管体Pipe Body
|
D≤101.60mm±0.79mm
|
|
D≥114.30mm -0.5%OD./+1.0%OD.
|
|
接箍Coupling
|
±1%OD
|
|
壁厚Wall Thickness
|
-12.5%t
|
|
重量 Weight
|
单根Single Lengths
|
+6.50%
|
|
-3.50%
|
|
车载量Carload Lots
|
0, -1.75%
|
-
螺纹参数允许偏差 Thread Parameter Tolerances：
|
品种规格
Type and Size
|
锥度
Taper
mm/m
|
螺距Pitch mm
|
齿高
Height mm
|
螺纹角度
Angle
度
deg.
|
螺纹长度a
Length L4
外螺纹
External Thread
|
管端倒角
Chamfer on End of Pipe
度
deg.
|
紧密据a
Standoff
|
|
每英寸
Per inch
|
累计
Accu-
mulative
|
管体螺纹
Pipe
Thread
|
接箍螺纹
Coupling
Thread
|
|
圆螺纹油管
Round Thread Tubing
2 3/8”~4 1/2”
|
10
|
牙/英寸
Threads per inch
|
+5.208
-2.600
|
±0.076
|
±0.152
|
+0.051
-0.102
|
11/2
|
1 1/2P
|
+5
-0
|
±1 1/2P
|
±1 1/2P
|
|
8
|
牙/英寸
Threads per inch
|
+5.208
-2.600
|
±0.076
|
±0.152
|
+0.051
-0.102
|
11/2
|
1P
|
+5
-0
|
±1P
|
±1P
|
|
圆螺纹套管Round Thread Cashre
4”~7”
|
+5.208
-2.600
|
±0.076
|
±0.152
|
+0.051
-0.102
|
11/2
|
1P
|
+5
-0
|
±1P
|
±1P
|
|
偏梯形螺纹套管
Buttress Thread
Casing
4 1/2”~7”
|
接箍
Couping
|
+4.50
-2.50
|
±0.051
|
±0.102
|
±0.025
|
-
|
-
|
+5
-0
|
+1 1/2P
-O
|
+0
-1 1/2P
|
|
完整螺纹
Perfect thread
|
+3.50
-1.50
|
|
不完整螺纹
Imperfect thread length
|
+4.50
-1.50
|
注a：p—螺距
Note a ：p—Pitch
