DX54D Steel yog dab tsi?
DX54D yog kub-dip coated sib sib zog nqus- kos hlau nyob rau hauv DX series, muaj nuj nqis rau siab formability. Ua los ntawm qis- carbon steel, nws zoo tagnrho rau kev sib sau txias. "DX" qhia cov koob, "54" qib formability, thiab "D" qhov tob- kos duab zoo. Ob leeg DX54D thiab DX53D yog cov tsheb hlau, tab sis DX54D muaj ntau dua formability, ua rau nws zoo dua rau cov duab complex. DX54D (sib npaug rau FeP06G, steel tooj 1.0952) yog siv nyob rau hauv automotive panels thiab cov khoom vaj tse, nrog corrosion kuj rau sab nraum zoov los yog ntub dej.
Kev xav tau ntawm DX54D
Mechanical zog
Txhawm rau ua kom tau raws li qhov xav tau ntawm ultra- kos duab sib sib zog nqus, ntxiv rau qhov tsis muaj zog tawm los thiab siab elongation tau teev nyob rau hauv tus qauv, ntau dua r thiab n qhov tseem ceeb.
Plating
Cov txheej thiab cov substrate yuav tsum muaj zog adhesion, thiab yuav tsum tsis txhob poob thaum lub sij hawm stamping deformation, thiab muaj kev vuam zoo thiab corrosion kuj.
nto
Feem ntau, qhov saum npoo yuav tsum tau ua kom du thiab du kom ntseeg tau tias qhov chaw ci ntsa iab thiab zoo nkauj tom qab pleev xim, thiab muaj qee qhov yuav tsum tau ua rau lub ntsej muag roughness, vim tias nws yuav cuam tshuam rau kev ua haujlwm stamping ntawm cov khoom thiab adhesion ntawm cov xim zaj duab xis.
Tshuaj muaj pes tsawg leeg ntawm DX54D Steel
| Element | Cov ntsiab lus (%) |
| Carbon, C | 0.08 max |
| Manganese, Mn | 0.45 max |
| Phosphorus, P | 0.03 max |
| Sulfur, S | 0.03 max |
| Silicon, Sib | 0.50 max |
| Aluminium, Al | 0.02-0.07 |
| Nitrogen, N | 0.012 max |
| Titanium, TSI | 0.30 max |
| Chromium, Cr | 0.20 max |
| Nickel, Nia | 0.20 max |
| tooj, Cu | 0.20 max |
Cov pa roj carbon tsawg (C): Ua kom ductility thiab yooj yim hauv kev sib sib zog nqus nqus yam tsis muaj kev cuam tshuam lub zog.
Tswj Manganese (Mn): Txhim khu lub zog thiab toughness.
Tsawg Phosphorus (P) thiab Sulfur (S): Txhim kho weldability thiab txo brittleness.
Aluminium (Al): Ua raws li deoxidizer, txhim kho qhov zoo.
Titanium (Ti): Ua kom muaj kev ruaj ntseg hauv kev tsim, txo cov kab nrib pleb thiab qhov tsis xws luag thaum shaping.
Mechanical Properties ntawm DX54D Steel
| Khoom | Metric | Imperial |
| Tensile zog | 270-370 MPa | 39-54 dr hab |
| Yield zog | 120-220 MPa | 17-32 dr hab |
| Brinell Hardness | 90-120 HB | 90-120 HB |
| Rockwell Hardness | 50-65 HWB | 50-65 HWB |
| Vickers Hardness | 100-130 HV | 100-130 HV |
| Elongation | Ntau dua lossis sib npaug li 36% | Ntau dua lossis sib npaug li 36% |
| Elastic Modulus | 210 GPa | 30,500 ksg |
| Anisotropy (R-Tus nqi, Min) | Ntau dua lossis sib npaug rau 1.6 | Ntau dua lossis sib npaug rau 1.6 |
| Strain Hardening Index (n-Tus nqi, Min) | Ntau dua lossis sib npaug rau 0.18 | Ntau dua lossis sib npaug rau 0.18 |
Nruab nrab Tensile thiab Yield Strength: Muab lub zog txaus rau kev ua haujlwm ntev yam tsis muaj kev cuam tshuam kev tsim kho, haum rau tsheb thiab khoom siv.
High Elongation: Tso cai stretching tseem ceeb, ua kom cov duab tsis muaj cracking.
Zoo Anisotropy (R-Value): Ua kom cov khoom sib xws hauv cov lus qhia sib txawv, txo qhov tsis xws luag hauv qhov sib sib zog nqus- kos.
Stable Strain Hardening Index (n-Tus nqi): Txhawb gradual deformation, uas pab tswj cov txheej txheem kev ncaj ncees thaum lub sij hawm shaping.
Cov txheej txheem ntau lawm ntawm DX54D Steel
Thoob plaws hauv tag nrho cov txheej txheem tsim khoom, peb nruj me ntsis tswj txhua qhov txuas kom ntseeg tau tias txhua pawg ntawm cov khoom ua tau raws li cov qauv zoo tshaj plaws, ua kom muaj kev ntseeg siab thiab ua haujlwm ntev ntawm peb cov hlau DX54D, yog li koj tuaj yeem tau txais txiaj ntsig.
Smelting txheej txheem:Ua ntej, peb yaj thiab kho cov ntaub ntawv raw los xyuas kom meej tias cov tshuaj muaj pes tsawg leeg ntawm cov hlau molten ua tau raws li cov qauv tsim nyog.
Kub dov txheej txheem: Tom ntej no, cov hlau molten yog cam khwb cia rau hauv billets thiab kub dov ntawm qhov kub ntawm txog 1200 degree. Cov kauj ruam no tsuas yog txo cov thickness ntawm cov hlau thiab txhim kho nws cov khoom.
Cov txheej txheem txias dov:Tom qab kub dov, cov hlau yog txias dov kom txo cov thickness, thaum txhim kho cov nto tiav thiab precision los xyuas kom meej tias cov khoom tiav yog ntau qhov tseeb ntawm qhov loj.
Nruam annealing:Txhawm rau txo qhov kev ntxhov siab sab hauv tsim thaum lub caij txias dov, peb yuav ua kom sov cov hlau rau 700-800℃rau kev sib tsoo, uas tuaj yeem txhim kho cov ductility ntawm cov hlau thiab ua kom yooj yim rau kev ua haujlwm.
Galvanizing kev kho mob:Thaum kawg, txhawm rau txhim kho corrosion kuj ntawm cov hlau, peb siv cov txheej txheem kub dip galvanizing rau hauv cov hlau hauv molten zinc ntawm 450-460℃los tsim cov zinc txheej kom zoo tiv thaiv xeb.
|
Txuj |
Qib |
C |
Si |
Mn |
P |
S |
Ti |
|
Kev Ua Txhaum Cai Suav Standard |
DX51D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
DX52D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX53D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX54D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX56D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX57D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
Kev Ua Txhaum Cai Japanese Standard |
SGCC |
0.15 |
0.50 |
0.80 |
0.050 |
0.030 |
0.025 |
|
SGCD1 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
0.025 |
|
|
SGCD3 |
0.08 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
SGCD4 |
0.06 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
Rau Cov Qauv Japanese Standard |
TIAB SA 340 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.025 |
|
SIB 400 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.150 |
|
|
TIAB SA 490 |
0.30 |
0.50 |
2.00 |
0.200 |
0.035 |
0.025 |
|
|
TIAB SA 510 |
0.30 |
0.50 |
2.50 |
0.200 |
0.035 |
0.025 |
|
|
Rau Cov Qauv AISI Standard |
S220GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
S250GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S280GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S320GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S350GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
|
|
S550GD + Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |