Seamless carbon steel tubes for high-temperature service
Application: for high temperature service
Grade: A B C
Grade and chemical composition
|
Grade |
C ≤ |
Mn |
P≤ |
S≤ |
Si≥ |
Cr≤ |
Cu≤ |
Mo≤ |
Ni≤ |
V≤ |
|
A |
0.25 |
0.27-0.93 |
0.035 |
0.035 |
0.10 |
.040 |
0.40 |
0.15 |
0.40 |
0.08 |
|
B |
0.30 |
0.29-1.06 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
|
C |
0.35 |
0.29-1.06 |
0.035 |
0.0365 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
Grade and Mechanical Properties
|
Grade |
Tensile point |
Yeild Point |
Elongation |
Delivery Condition |
|
A |
≥330 |
≥205 |
20 |
Annealed |
|
B |
≥415 |
≥240 |
20 |
Annealed |
|
C |
≥485 |
≥275 |
20 |
Annealed |
Dimension Tolenrance
|
Pipe type |
Size |
Tolerance | |
|
Cold drawn |
OD |
≤10.3-48.3mm |
+/-0.40mm |
|
>48.3mm |
+/-0.79mm | ||
|
WT |
+/-12.5% | ||