NK AH36 DH36 EH36 FH36 steel phaj rau nkoj tsim
NK QibAH40/DH40/EH40/FH40 steel daim hlau yog siv nyob rau hauv manufacturing hull, maritime roj extraction drilling platform, platform raj hlws ris thiab lwm yam structural Cheebtsam.
Chemical Composition thiab Mechanical Property:
|
Qib |
Chemical Composition (%) |
||||||
|
C≤ |
Mn |
Si |
P≤ |
S≤ |
Al(cid) ≥ |
Cu≤ |
|
|
NK AH 40 |
0.18 |
0.90-1.60 |
0.10-0.50 |
0.035 |
0.035 |
0.015 |
0.35 |
|
NK DH40 |
|||||||
|
NK EH 40 |
|||||||
|
NK FH40 |
0.16 |
0.025 |
0.025 |
||||
|
Qib |
Mechanical Property |
|||
|
Tensile zog (MPa) |
Yield zog (MPa) |
% Elongation hauv 2 nti (50mm) min |
Impacting Test Temperature (°C) |
|
|
NK AH 40 |
510-650 |
390 |
20 |
0 |
|
NK DH40 |
-20 |
|||
|
NK EH 40 |
-40 |
|||
|
NK FH40 |
-60 |
|||
Lub xeev xa khoom:
Cov chaw kho cua sov rau kub dov, tswj dov, normalizing, annealing, tempering, quenching, normalizing ntxiv rau tempering, quenching thiab tempering, thiab lwm lub xeev xa khoom muaj raws li cov neeg siv khoom xav tau.
Kev xeem:
HIC, PWHT, Crack Detection, Hardness thiab DWTT xeem rau pipelines steel phaj kuj muaj.