|
Imperial size |
Metric size |
||
|
OD inch |
WT inch |
OD mm |
WT mm |
|
1/8 (0.125) |
0.028 |
3.18 |
0.71 |
|
0.035 |
3.18 |
0.89 |
|
|
3/16 (0.188) |
0.028 |
4.76 |
0.71 |
|
0.035 |
4.76 |
0.89 |
|
|
0.049 |
4.76 |
1.24 |
|
|
1/4 (0.250) |
0.035 |
6.35 |
0.89 |
|
0.049 |
6.35 |
1.24 |
|
|
0.065 |
6.35 |
1.65 |
|
|
0.083 |
6.35 |
2.11 |
|
|
3/8 (0.375) |
0.035 |
9.53 |
0.89 |
|
0.049 |
9.53 |
1.24 |
|
|
0.065 |
9.53 |
1.65 |
|
|
0.083 |
9.53 |
2.11 |
|
|
1/2 (0.500) |
0.035 |
12.7 |
0.89 |
|
0.049 |
12.7 |
1.24 |
|
|
0.065 |
12.7 |
1.65 |
|
|
0.083 |
12.7 |
2.11 |
|
Caustic Environments
Austenitic steels are susceptible to stress corrosion cracking. This may occur at temperatures above about 60°C (140°F) if the steel is subjected to tensile stresses and at the same time comes into contact with certain solutions, particularly those containing chlorides. Such service conditions should therefore be avoided. Conditions when plants are shut down must also be considered, as the condensates which are then formed can develop conditions that lead to both stress corrosion cracking and pitting.
SS316L has a low carbon content and therefore better resistance to intergranular corrosion than steels of type SS316.
Maximize protection of downhole line
Increase crush resistance during installation
Protect injection line against abrasion and pinching
Eliminate long term stress corrosion failure of control line
Improve clamping profile
Single or multiple encapsulation for ease of running and added protection
|
Alloy |
O.D. |
W.T. |
Yield Strength |
Tensile Strength |
Elongation |
Hardness |
Working Pressure |
Burst Pressure |
Collapse Pressure |
|
inch |
inch |
Mpa |
Mpa |
% |
HV |
psi |
psi |
psi |
|
|
|
|
min. |
min. |
min. |
max. |
min. |
min. |
min. |
|
|
SS316L |
0.375 |
0.035 |
172 |
483 |
35 |
190 |
3,818 |
17,161 |
5,082 |
|
SS316L |
0.375 |
0.049 |
172 |
483 |
35 |
190 |
5,483 |
24,628 |
6,787 |
|
SS316L |
0.375 |
0.065 |
172 |
483 |
35 |
190 |
7,517 |
33,764 |
8,580 |
|
SS316L |
0.375 |
0.083 |
172 |
483 |
35 |
190 |
9,749 |
43,777 |
10,357 |