|
|
Nominal
Pipe
Size
(mm) |
KCF Inner Surface Roughness Assurance Value |
AP Grade |
BA/MP Grade |
EP Grade |
Ry |
Ra |
Ry |
Ra |
Ry |
Ra |
1/8" |
25
m |
2.5
m |
100
inch |
4.5
m |
0.6
m |
20
inch |
1.0
m |
0.2
m |
7
inch |
1/4"`2" 6A`40A |
3.0
m |
0.5
m |
20
inch |
0.5
m |
0.12
m |
5
inch |
2-1/2"`4" 50A`100A |
4.0
m |
0.6
m |
25
inch |
5"`6" 125A`300A |
0.7
m |
0.15
m |
6
inch |
Measured range |
12.5mm |
4.0mm |
4.0mm |
Cutoff |
2.5mm |
0.8mm |
0.8mm |
EP is an abbreviation for Electropolishing BA (MP) for Bright Annealing
(Mechanical Polishing), and AP for Acid.
|
|
|
|
|
|
|
|
|
|