S890QL Qib Qib
• S = Structural Steel
• 890 = Yam tsawg kawg nkaus yield zog (MPa)
• Q = Quenching & Tempering
• L = Low notch toughness testing temperatures
Cov xwm txheej ntawm kev xa khoom
Dej quenched thiab tempered.
S890QL tshuaj muaj pes tsawg leeg
|
C
|
Si
|
Mn
|
P
|
S
|
B
|
Cr
|
Cu
|
Mo
|
|
0.20
|
0.80
|
1.70
|
0.020
|
0.010
|
0.005
|
1.50
|
0.50
|
0.70
|
|
N
|
Nb*
|
Ni
|
Ti*
|
V*
|
Zr*
|
|
|
|
|
0.015
|
0.06
|
2.0
|
0.05
|
0.12
|
0.15
|
|
|
|
* Yuav tsum muaj tsawg kawg yog 0.015% ntawm cov nplej-refining tam sim no. Aluminium kuj yog ib qho ntawm cov khoom no. Qhov 0.015% siv rau soluble aluminium, tus nqi no suav tias yog tau txais yog tias cov ntsiab lus txhuas txhuas yog tsawg kawg yog 0.018%.
* Thov nco ntsoov: Cov chaw tsim khoom muaj cai hloov cov tshuaj muaj pes tsawg leeg.
CEV - Carbon Equivalent Value
CEV = C + Mn/6 + (Cr+Mo+V)/5+(Cu+Ni)/15
S890QL quenched thiab tempered qauv hlau
S890QL Mechanical Properties
|
Phaj Thickness
|
Yield
Lub zog
|
Tensile zog
|
Elongation
|
|
MM
|
ReH (Mpa)
|
Rm (Mpa)
|
A5%
Yam tsawg kawg nkaus
|
|
3 rau 50
|
890
|
940~1100
|
11
|
|
> 50 rau 100
|
830
|
880~1100
|
11
|
|
|
|
|
S890QL V Notch Impact Test
|
Txoj hauj lwm ntawm Cov Qauv
|
0ºC ua
|
-20 ºC
|
-40 ºC
|
|
Ntev
|
50 jul
|
40 jul
|
30 jul
|
|
Hloov
|
35 jul
|
30 jul
|
27 jul
|
Kev ua ntawm S890QL High Strength Steel Phaj
Txias txoj kev
S690QL1 steel phaj yog tsim rau txias-forming adhering rau ib tug dabtsi yog khoov los yog folding vojvoog> 4 zaug steel phaj thickness longitudinal thiab> 3 zaug transverse rau dov kev taw qhia. Kev ntxhov siab tom qab annealing yog ua tau mus txog qhov kub ntawm 580 ºC (degree C).
