Q265GNH thiab Q345GNH yog Suav tus qauv (GB / T) huab cua- tiv taus (COR-TEN hom) qis- alloy structural steel daim hlau, paub txog lawv cov kev txhim kho corrosion, siab zog, thiab zoo weldability, feem ntau siv nyob rau hauv choj, tsheb, ntim, thiab offshore lub zog, nrog "4 yield" yam tsawg kawg nkaus (345 MPa rau Q345, ~ 265 MPa rau Q265), thiab "NH" txhais tau tias lawv yog huab cua- cov qib resistant haum rau corrosive ib puag ncig.
Cov tshuaj muaj pes tsawg leeg ntawm Q265GNH steel phaj
|
Qib |
Q265GNH hlau chemical muaj pes tsawg leeg (%) |
||||
|
C Max |
Si |
Mn |
P |
S Max |
|
|
Tuam Tshoj GB/T 4171 Q265GNH |
0.12 |
0.1-0.4 |
0.2-0.5 |
0.07-0.12 |
0.02 |
Tshuaj muaj pes tsawg leeg ntawm Q345GNH steel phaj
|
Q345GNH tshuaj muaj pes tsawg leeg |
|||||
|
Qib |
Cov ntsiab lus Max (%) |
||||
|
qw 345g
|
C |
Si |
Mn |
P |
S |
|
Tsawg dua lossis sib npaug li 0.12 |
0.25-0.75 |
0.20-0.50 |
0.07-0.15 |
Tsawg dua lossis sib npaug li 0.035 |
|
|
Cr |
Cu |
Ni |
RE |
|
|
|
0.30-1.25 |
0.25-0.55 |
Tsawg dua lossis sib npaug li 0.65 |
|
|
|
Cov cuab yeej cuab tam ntawm Q265GNH steel phaj
|
Qib |
Q265GNH steel mechanical khoom |
|
|
|
Yield zog (MPa) min |
Tensile zog (MPa) min |
% Elongation min |
|
|
Tuam Tshoj GB/T 4171 Q265GNH |
265 |
410 |
-- |
Cov cuab yeej cuab tam ntawm Q345GNH steel phaj
|
Qib |
Thickness |
Yield |
Tensile |
Elongation |
Lub xeev xa khoom |
|
qw 345g
|
mm |
Min Mpa |
Mpa |
Tsawg% |
|
|
Tsawg dua los yog sib npaug li 6 |
345 |
480 |
22 |
Kub dov |
|
|
>6 |
|||||
|
Tsawg dua lossis sib npaug li 2.5 |
320 |
450 |
26 |
Txias dov |
Cov yam ntxwv tseem ceeb
Weathering Resistance: Cov hlau no tsim ib qho ruaj khov, tiv thaiv xeb txheej (patina) thaum raug huab cua, txo qhov xav tau kev pleev xim thiab tu, zoo ib yam li ASTM A588 (COR-TEN B).
High Strength: Lawv muab lub zog siab dua li cov pa roj carbon steel.
Weldability: Zoo weldability rau fabrication.
Daim ntaub ntawv: Zoo tagnrho rau cov qauv sab nraum zoov xws li txuas hniav, tsheb ciav hlau, cov pej thuam, cov yam ntxwv ntawm vaj tse, thiab cov khoom siv roj & roj uas muaj kev txhawj xeeb.
