Taw qhia: Dab tsi ASTM A105 Sawv Rau
ASTM A105 yog ib qho ntawm cov qauv siv dav tshaj plaws rau forged carbon steel Cheebtsam hauv cov kav dej. Nws tshwj xeeb npogforgings, flanges, fittings, thiab li qubtsim los rau siab -kub thiab ambient kev pab cuam. Kev nkag siab txog tus qauv no yog qhov tseem ceeb rau cov kws tsim khoom, cov chaw muag khoom, thiab pab pawg muag khoom xaiv cov khoom siv rau cov tshuab siab.
Lub A105 specification txhais covchemical muaj pes tsawg leeg, mechanical zog, thiab kev tsim khoomuas ua kom zoo ib yam, durability, thiab kev nyab xeeb nyob rau hauv siab. Tsis zoo li cov kav dej welded, A105 cov khoom yog forged, txhais tau tias lawv yog tsim los ntawm cov cua sov billets thiab shaping lawv nyob rau hauv siab, ua rau ib tug denser thiab muaj zog grain qauv.
Txhawm rau tshawb xyuas yuav ua li cas A105 piv rau A106 seamless steel kav, koj tuaj yeem nyeem covlub ntsiab lus qhia:ASTM A105 vs A106 - Qhov txawv yog dab tsirau kev sib piv.
Cov khoom siv sib xyaw thiab cov khoom siv tshuaj lom neeg
ASTM A105 yog cais raws li acarbon hlau forging, muaj cov hlau feem ntau nrog tsawg tsawg ntawm carbon, manganese, silicon, thiab kab kawm xws li sulfur thiab phosphorus. Cov ntsiab lus no txiav txim siab nws lub zog txhua yam thiab ua haujlwm rau deformation.
| Element | Cov ntsiab lus (%) | Lub luag haujlwm hauv Alloy |
|---|---|---|
| Cov pa roj carbon | Tsawg dua lossis sib npaug li 0.35 | Nce hardness thiab lub zog |
| Manganese | 0.60 – 1.05 | Txhim kho toughness thiab hnav tsis kam |
| Phosphorus | Tsawg dua lossis sib npaug li 0.035 | Yuav tsum qis kom tiv thaiv brittleness |
| Sulfur | Tsawg dua lossis sib npaug li 0.040 | Txhim kho machinability |
| Silicon | 0.10 – 0.35 | Ua kom muaj zog thiab elasticity |
Cov ntsiab lus tsis tshua muaj cov pa roj carbon monoxide ua rau cov hlau txuas, ua kom yooj yim dua machining thiab vuam, thaum tuav lub zog txaus rau siab - kev pabcuam siab.
Mechanical Properties thiab Forging yam ntxwv
ASTM A105 forgings yuav tsum ua raws li hauv qab nomechanical khoomyuav tsum tau ua kom ntseeg tau kev ua tau zoo:
| Khoom | Kev xav tau |
|---|---|
| Tensile zog | Ntau dua lossis sib npaug li 485 MPa |
| Yield zog | Ntau dua lossis sib npaug li 250 MPa |
| Elongation | Ntau dua lossis sib npaug li 22% |
| Hardness | Tsawg dua lossis sib npaug li 187 HB |
Cov khoom siv tsis zoo no ua rau A105 haum rauvalves, flanges, couplings, thiab fittingsnyob rau hauv refineries, tshuaj nroj tsuag, thiab fais fab system. Forging txhim kho cov nplej ntws thiab tshem tawm cov voids sab hauv, ua rau kom muaj zog ua haujlwm zoo dua.
Kev kho cua sov thiab kuaj
A105 forgings tuaj yeem raugnormalizing los yog temperingnyob ntawm qhov kev pab cuam npaj. Tom qab-forging kev kho cua sov pab txo cov kev ntxhov siab uas seem, kho cov qauv nplej, thiab txhim kho toughness.
Kev xeem yuav tsum muaj xws li:
- Kev ntsuam xyuas hydrostaticrau kev ceev ceev
- Kev ntsuas tensilerau kev ua raws li lub zog
- Hardness thiab Impact testsrau kev ruaj ntseg
Daim ntawv thov ntawm ASTM A105
A105 carbon steel forgings feem ntau siv rau:
- Flanges thiab fittings nyob rau hauvroj & roj pipelines
- Valve lub cev thiab npog hauvsiab -siab cov kab
- Manifold Cheebtsam hauvpetrochemical systems
- Couplings thiab luj tshib nyob rau hauvboiler thiab lub zog tsim
Vim tias lawv qhov kev ua tau zoo txhua yam, A105 forgings nyiam rauambient thiab siab -kev pab kub txog li 425 degree.
Xaus
ASTM A105 muab cov tshuaj muaj zog thiab ruaj khov rau forged Cheebtsam uas xav tau cov neeg kho tshuab siab thiab nruab nrab corrosion kuj. Txawm li cas los xij, nws tsis yog tsim rau cov ntawv thov kub tsawg, qhov twg lwm qib zoo li A350 LF2 nyiam dua.
Rau kev nkag siab tob txog qhov nws piv rau A106 seamless kav siv hauv cov kab siab, mus saib tag nrho cov lus qhia:ASTM A105 vs A106 - Qhov txawv yog dab tsi.
