ASTM A179: Seamless inotonhora-inodhonzwa munyoro simbi tubing;
Inokodzera tubular heat exchangers, condensers, uye zvakafanana kupisa kupisa michina.
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Diameter Range
ASTM A179 yemachubhu ane madhayamita ekunze ari pakati pe3.2 -76.2 mm [NPS 1/8 - 3 mukati].
Kupisa Kurapa
Kupisa kunorapwa pa1200 ℉ [650 ℃] kana pamusoro mushure mekupedzisira kutonhora kwekusveta ndima.
Chitarisiko
Pombi yesimbi yakapedzwa haifaniri kuva nechikero.Slight oxidation haina kutorwa sechiyero.
Dimensional Tolerances
| Dimensional Tolerances | ||
| List | Ronga | Scope |
| Misa | DN≤38.1mm[NPS 11/2] | +12% |
| DN ＞38.1mm[NPS 11/2] | + 13% | |
| Diameter | DN≤38.1mm[NPS 11/2] | +20% |
| DN ＞38.1mm[NPS 11/2] | +22% | |
| Urefu | DN＜50.8mm[NPS 2] | +5mm[NPS 3/16] |
| DN≥50.8mm[NPS 2] | +3mm[NPS 1/8] | |
| Kururama uye Pedzisa | Machubhu akapedzwa anofanira kutwasanuka uye ane magumo akatsetseka asina maburrs. | |
| Kukanganisa kubata | Chero discontinuity kana kusarongeka kunowanikwa muchubhu kunogona kubviswa nekukuya, kunze kwekunge nzvimbo yakatsetseka yakakomberedzwa ichichengetwa, uye ukobvu hwemadziro haudzike kusvika pasi peinobvumidzwa neizvi kana chigadzirwa. | |
ASTM A179 uremu fomula ndeiyi:
M=(DT)×T×C
Muremu pahurefu hweyuniti;
Dndiyo yakataurwa kunze kwedhayamita, inoratidzwa mumamirimita (inches);
T ndiko kutsanangurwa kwemadziro ukobvu, kunoratidzwa mumamirimita (inches);
Cndeye 0.0246615 yekuverenga mumayuniti eSI uye 10.69 yekuverenga mumayuniti eUSC.
Kana iwe uchida kuziva zvakawanda nezvesimbi pombi uremu matafura uye masheti,tinya pano!
ASTM A179 Muedzo
Chemical Components
Kuedza nzira: ASTM A450 Chikamu 6.
| Chemical Components | |
| C(Kabhoni) | 0.06-0.18 |
| Mn(Manganese) | 0.27-0.63 |
| P(Phosphorus) | ≤0.035 |
| S(Sulfur) | ≤0.035 |
Hazvibvumirwi kupa alloy mamakisi anonyatso kudana kuwedzera kwechimwe chinhu kunze kweakanyorwa pamusoro.
Tensile Properties
Kuedza nzira: ASTM A450 Chikamu 7.
| Tensile Zvinodiwa | ||
| List | classification | value |
| Kusimba simba, min | KSI | 47 |
| MPa | 325 | |
| Goho simba, min | psi | 26 |
| MPa | 180 | |
| Elongation mu50mm (2 mukati), min | % | 35 |
Flattening Test
Nzira yekuedza: ASTM A450 Chikamu 19.
Flaring Test
Nzira yekuedza: ASTM A450 Chikamu 21.
Yakawedzerwa Trivia: Iyo flaring bvunzo muyedzo unoshandiswa kuongorora kuparara kwepurasitiki uye kutsemuka kuramba kwezvinhu zvesimbi, kunyanya machubhu kana akaiswa maitiro ekupisa.Muedzo uyu unowanzo shandiswa kuongorora kunaka uye kukodzera kwemachubhu, kunyanya mumashandisirwo panodiwa welding, flaring kana mamwe maitiro ekugadzirisa.
Flange Test
Test Method: ASTM A450 Chikamu 22. Alternative kune Flare Test.
Expanded Trivia: Kazhinji inoreva chiedzo chinoshandiswa kuongorora kuparara kwepurasitiki nekutsemuka kusamira kwesimbi, pombi, kana zvimwe zvinhu panguva yekubatanidza majoini.
Kuoma Muedzo
Test Method: ASTM A450 Chikamu 23. Kuoma hakufaniri kudarika 72 HRBW.
HRBW: Kunyanya inoreva Rockwell B Scale kuomarara bvunzo dzinoitwa panzvimbo dzakasungwa.
Hydraulic Pressure Test
Nzira yekuedza: ASTM A450 Chikamu 24.
Kwete-kuparadza Electrical Test
Nzira yekuedza: ASTM A450, Chikamu 26. Imwe nzira kune hydraulic test.
ASTM A179 Kumaka
ASTM A179icharatidzwa zvakajeka nezita remugadziri kana zita rechiratidzo, nhamba yezvipimo, giredhi, uye zita remutengi nenhamba yeodha.
Iko kumaka hakufanire kusanganisira gore regore rechirevo ichi.
Yemachubhu asingasviki 31.8 mm [11/4in.
ASTM A179 Inoenderana Maitiro
EN 10216-1
Chishandiso: Mapombi esimbi asina kuvharwa nekuda kwekumanikidza ane yakatarwa kamuri tembiricha zvivakwa.
Main application: Inoshandiswa zvakanyanya kumanikidza pombi mupetroleum uye maindasitiri emakemikari.
DIN 17175
Chishandiso: Seamless simbi machubhu ekushandisa pakupisa kwakanyanya.
Main applications: Boiler industry, heat exchangers.
BS 3059 Chikamu chekutanga
Kushandisa: Seamless uye welded simbi machubhu kuti ishandiswe pane yakaderera tembiricha.
Main applications: heat exchangers, condensers.
JIS G3461
Kushandisa: Carbon simbi boiler uye kupisa exchanger machubhu.
Main applications: heat exchanger uye boiler tubes.
ASME SA 179
Chishandiso: Yakada kufanana neASTM A179 yesimbi isina musono-inodhonzwa yakapfava yesimbi yekupisa yekupisa uye condenser machubhu.
Chekutanga application: Surface heat exchangers, condensers, nezvimwe.
ASTM A106
Chishandiso: Seamless kabhoni simbi tubing yepamusoro-tembiricha sevhisi.
Main application: Kudzvanya mapaipi epetroleum nemakemikari maindasitiri pakupisa kwakanyanya.
GB 6479
Kushandisa: High-pressure seamless simbi pombi yemakemikari emidziyo uye pombi.
Main Application: Yakakwira-kudzvanywa pombi yemakemikari indasitiri.
Nezvedu
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Nguva yekutumira: Mar-27-2024