Q500NH thiab Q235NH yog Suav-tus qauv (GB/T 4171) huab cua (Corten) cov qauv hlau, sib txawv los ntawm lub zog: Q235NH muaj qhov tsawg kawg nkaus yield zog ntawm 235 MPa, thaum Q500NH muaj qhov siab tshaj qhov siab tshaj tawm lub zog ntawm 500 MPa{9} H. steel siv rau kev thov cov ntawv thov xws li txuas hniav, ntim, thiab cov qauv sab nraum zoov uas lub zog thiab kev tiv thaiv corrosion yog qhov tseem ceeb, qhov Q235NH yog ntau dua, qis dua - lub zog huab cua steel.
Q235NH steelchemical muaj pes tsawg leeg
|
Qib |
Q235NH steelchemical muaj pes tsawg leeg (%) |
||||
|
C Max |
Si |
Mn |
P |
S Max |
|
|
Tuam Tshoj GB/T 4171 Q235NH |
0.13 |
0.1-0.4 |
0.20-0.60 |
0.030 |
0.030 |
Q500NH steelchemical muaj pes tsawg leeg
|
Qib |
Q500NH tshuaj muaj pes tsawg leeg (%) |
||||
|
C Max |
Si Max |
Mn Max |
P Max |
S Max |
|
|
Tuam Tshoj GB/T 4171 Q500NH |
0.12 |
0.65 |
2.0 |
0.025 |
0.030 |
Q235NH steelchemical muaj pes tsawg leeg
|
Qib |
Q235NH steelchemical muaj pes tsawg leeg (%) |
||||
|
C Max |
Si |
Mn |
P |
S Max |
|
|
Tuam Tshoj GB/T 4171 Q235NH |
0.13 |
0.1-0.4 |
0.20-0.60 |
0.030 |
0.030 |
Q500NH steelchemical muaj pes tsawg leeg
|
Qib |
Q500NH cov cuab yeej cuab tam |
||
|
Yield zog (MPa) |
Tensile zog (MPa) |
% Elongation min |
|
|
Tuam Tshoj GB/T 4171 Q500NH |
480-500 |
600-760 |
15 |
Qhov tseem ceeb sib txawv & zoo sib xws:
Lub zog: Tus naj npawb hauv lub npe (235 lossis 500) qhia qhov tsawg kawg nkaus tawm lub zog hauv MPa.
Hom: Ob leeg yog atmospheric corrosion-resistant (weathering) structural steels, tseem hu ua Corten steel.
Standard: Ob leeg poob raws li Tuam Tshoj tus GB / T 4171 tus qauv.
Muaj pes tsawg leeg: Muaj me me ntawm alloying ntsiab (xws li Cu, Ni, Cr) los tsim ib txheej tiv thaiv xeb.
Daim ntaub ntawv: Siv rau cov qauv sab nraum zoov, tsheb ciav hlau, tsheb thauj khoom, thiab cov khoom siv kho kom zoo nkauj, nrog Q500NH rau kev thauj khoom ntau dua -cov kev xav tau.
