ABS Qib AH40 Mechanical Property:
Yield zog (Ntau dua lossis sib npaug rau Mpa) |
Tensile zog (Mpa) |
Elongation nyob rau hauv ntau dua los yog sib npaug rau ,% |
|
|
390 |
510-650 |
200 hli |
50 hli |
|
19 |
22 |
||
ABS Qib AH40 Chemical Composition:
Cov ntsiab lus tseem ceeb ntawm ABS Qib AH40 |
||||||
|
C |
Si |
Mn |
P |
S |
Al (acid) min. |
Nb |
|
0.18 |
0.10-0.50 |
0.90-1.60 |
0.035 |
0.035 |
0.015 |
0.02-0.05 |
|
V |
Ti |
Cu |
Cr |
Ni |
Mo |
|
|
0.05-0.10 |
0.02 |
0.35 |
0.20 |
0.40 |
0.08 |
|
1. ABS Qib AH40 steel phaj yog dab tsi, thiab nws txawv ntawm AH36 li cas?
Teb:ABS Qib AH40 yog lub siab - lub zog shipbuilding steel ntawv pov thawj los ntawmAmerican Bureau of Shipping (ABS). Nws muajsiab yield zog (Ntau dua los yog sib npaug rau 390 MPa)piv rau AH36 (Ntau dua los yog sib npaug rau 355 MPa), ua rau nws tsim nyog rau kev thov marine ntau dua qhov yuav tsum muaj lub zog ntau dua.
2. Dab tsi yog cov yam ntxwv ntawm ABS AH40 steel?
Teb:Cov khoom tseem ceeb ntawm AH40 muaj xws li:
Yield zog:Ntau dua lossis sib npaug rau 390 MPa (56,500 psi)
Tensile zog:510-650 MPa (74,000-94,000 psi)
Elongation:Ntau dua lossis sib npaug li 20%
Impact Toughness:Ua tau raws li ABS cov cai, feem ntau kuaj ntawm-20 ° F (-4 ° F)lossis qis dua rau Arctic - cov ntawv thov qib.
3. AH40 steel feem ntau siv nyob rau hauv shipbuilding nyob qhov twg?
Teb:AH40 yog siv rau hauv cov txheej txheem marine tseem ceeb uas xav tausiab zog-rau- hnyav piv, xws li:
Ice-cov nkoj hauv chav kawm & Arctic offshore platforms
Hnyav- thauj cov nkoj thauj khoom (cov thauj khoom loj, cov roj tankers)
Siab -qhov kev ntxhov siab nyiamdeck plating, hull thav duab, thiab bow sections
4. Yuav ua li cas vuam ceev faj nrog AH40 steel?
Teb:Vim nws lub zog ntau dua, AH40 xav tau:
Preheating(100–150℃rau daim hlau tuab) kom tsis txhob muaj hydrogen-induced cracking
Tsawg-hydrogen electrodes(eg, AWS E7018 for SMAW)
Tswj cua sov inputlos tswj cov khoom siv kho tshuab
Ua raws liABS welding txheej txheem (WPS / PQR)
5. Cov qauv thiab ntawv pov thawj twg siv rau ABS AH40 steel?
Teb:AH40 ua raws li:
ABS Cov Cai rau Cov Nkoj Hlau
Cov qauv thoob ntiaj teb:ASTM A131, EN 10225, lossis sib npaug
Ntawv pov thawj:Mill Test Reports (MTRs) txheeb xyuasCov tshuaj muaj pes tsawg leeg (piv txwv li, C Tsawg dua lossis sib npaug li 0.18%, CE Tsawg dua lossis sib npaug li 0.43%)thiab mechanical zog
Cim npe nrov: ABS qib ah40 shipbuilding steel phaj, Tuam Tshoj abs qib ah40 shipbuilding steel phaj manufacturers, lwm tus neeg, Hoobkas
