S690QL thiab S620QL yog ob qho tib si siab -lub zog, quenched & tempered (Q&T) cov qauv hlau nyob rau hauv EN 10025-6, tab sis qhov sib txawv tseem ceeb nyob rau hauv lawv cov lus qhia yam tsawg kawg nkaus lub zog: S690QL muaj qhov siab tshaj tawm los ntawm 690 MPa ntawm qhov tsawg kawg nkaus, thaum qhov tsawg kawg nkaus tawm los ntawm S690QL. MPa, ua rau S690QL muaj zog, nrog S690QL feem ntau muab qhov zoo dua qhov kub thiab txias (QL rau Kub Kub) rau cov ntawv thov tseem ceeb, txawm hais tias ob leeg siv QL lus rau Q&T.
Tshuaj muaj pes tsawg leeg
|
S620 qwTshuaj muaj pes tsawg leeg |
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|
Qib |
Cov ntsiab lus Max (%) |
|||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
Cr |
|
|
S620 qw |
0.20 |
0.80 |
1.70 |
0.020-0.025 |
0.010-0.015 |
0.015 |
0.005 |
1.50 |
|
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
|
|
|
0.50 |
0.70 |
0.06 |
2.0 |
0.05 |
0.12 |
0.15 |
|
|
|
S690 qwTshuaj muaj pes tsawg leeg |
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B | CEV |
| max 0.2 hli | max 0.8 hli | max 1.7 Nws | max2 ua | max 0.02 Nws | max 0.01 Nws | max 1.5 hli | max 0.7 hli | max 0.12 | max 0.015 | max 0.06 | max 0.05 Nws | max 0.5 hli | max 0.15 Nws | max 0.005 Nws | max 0.83 Nws |
Mechanical Property
|
Qib |
S620 qwMechanical Property |
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|
Thickness |
Yield |
Tensile |
Elongation |
Min Impact Zog
|
||
|
S620 qw |
mm |
Min Mpa |
Mpa |
Tsawg% |
-40 |
30J |
|
3<> |
620 |
700-890 |
15 |
-40 |
30J |
|
|
50<> |
580 |
700-890 |
15 |
-40 |
30J |
|
|
100<> |
560 |
650-830 |
15 |
-40 |
30J |
|
S690 qwMechanical Property
| Nominal thickness (hli): | 3 - 50 | 50 - 100 | 100 - 150 |
| Rm - Tensile zog (MPa) | 770-940 | 760-930 | 710-900 |
| Nominal thickness (hli): | 3 - 50 | 50 - 100 | 100 - 150 |
| ReH - Yam tsawg kawg nkaus tawm lub zog (MPa) | 690 | 650 | 630 |
| KV - Impact zog (J) longitud., | 0 degree 50 |
-20 degree 40 |
-40 degree 30 |
| Ib - Min. elongation Lo=5,65 √ Yog li (%) | 14 |
S690 qw
Lub zog: siab zog, qhov tsawg kawg nkaus tawm lub zog ntawm 690 MPa.
Daim ntawv thov: Siv rau cov khoom hnyav-cov haujlwm hnyav uas xav tau lub zog zoo heev- rau- qhov hnyav piv, xws li cranes, txuas hniav, thiab cov tshuab hnyav.
Toughness: Feem ntau raug kuaj rau cov qauv hluav taws xob ntau dua (xws li 40J ntawm -20℃lossis -40 degree) vim yog 'QL' (Quenched & Tempered, Low Temp) tsim, haum rau qhov chaw txias heev.
S620 qw
Lub zog: Tseem muaj lub zog siab, tab sis qis dua S690QL, nrog qhov tsawg kawg nkaus lub zog ntawm 620 MPa.
Daim ntawv thov: Tsis tas li rau siab - daim ntawv thov tawm, tab sis qhov twg me ntsis zog dua S690QL txaus.
Toughness: Kuj tau txais txiaj ntsig los ntawm Q&T (QL), muab cov khoom muaj txiaj ntsig zoo, tab sis nws cov txiaj ntsig qis dua.
