NK AH36 DH36 EH36 FH36 efere ígwè maka ịrụ ụgbọ mmiri
NK GradeAH40 / DH40 / EH40 / FH40 efere ígwè na-eji n'ichepụta hull, Maritime mmanụ mmịpụta mkpọpu ikpo okwu, ikpo okwu tube junction na ndị ọzọ structural components.
Ngwakọta kemịkalụ na akụrụngwa:
|
Ọkwa |
Ngwakọta kemịkalụ(%) |
||||||
|
C≤ |
Mn |
Si |
P≤ |
S≤ |
Al (cid) ≥ |
Cu≤ |
|
|
NK AH40 |
0.18 |
0.90-1.60 |
0.10-0.50 |
0.035 |
0.035 |
0.015 |
0.35 |
|
NK DH40 |
|||||||
|
NK EH40 |
|||||||
|
NK FH40 |
0.16 |
0.025 |
0.025 |
||||
|
Ọkwa |
Ngwongwo igwe |
|||
|
Ike Tensile (MPa) |
Ike Mpụta (MPa) |
% Mgbatị n'ime 2 in.(50mm) nkeji |
Nnwale mmetụta Okpomọkụ(°C) |
|
|
NK AH40 |
510-650 |
390 |
20 |
0 |
|
NK DH40 |
-20 |
|||
|
NK EH40 |
-40 |
|||
|
NK FH40 |
-60 |
|||
Steeti nnyefe:
Ụlọ ọrụ ọgwụgwọ okpomọkụ maka ikpo ọkụ na-ekpo ọkụ, ntụgharị a na-achịkwa, normalizing, annealing, tempering, quenching, normalizing plus tempering, quenching na tempering, na ndị ọzọ nnyefe steeti dị ka ndị ahịa chọrọ.
Nnwale:
HIC, PWHT, Crack Detection, hardness and DWTT test for pipelines steel plates dịkwa.