ASTM A691 1 CR Steel Pipe piav qhia
ASTM A691 1 CR steel yeeb nkab yog ib hom alloy steel yeeb nkab uas ua raws li tus qauv ASTM A691, nrog "1 CR" qhia tias nws muaj kwv yees li 1% chromium (Cr).
Txuj kev ua raws cai:
ASTM A691 yog ib qho kev qhia tshwj xeeb rau hluav taws xob -fusion-welded steel yeeb nkab haum rau siab - kev pabcuam siab ntawm qhov kub nruab nrab. Cov qauv no suav nrog ntau qib, txhua tus muaj cov tshuaj sib txawv thiab cov khoom siv kho tshuab kom haum rau ntau yam kev siv.
Khoom siv:
Lub npe "1 CR" txhais tau hais tias cov yeeb nkab steel muaj li ntawm 1% chromium. Chromium yog ntxiv los txhim kho cov hlau corrosion kuj, siab - kub lub zog, thiab oxidation kuj.
Nyob ntawm cov qib tshwj xeeb hauv ASTM A691 tus qauv, lwm cov ntsiab lus xws li molybdenum (Mo) kuj tseem tuaj yeem muaj los txhim kho cov yeeb nkab kev ua tau zoo.
Cov khoom tseem ceeb:
Corrosion Resistance: Cov ntsiab lus chromium pab tsim cov txheej txheem oxide tiv thaiv ntawm cov hlau, uas txhim kho nws cov kev tiv thaiv corrosion hauv ntau qhov chaw.
High -Tsub Ua Haujlwm: Qhov sib ntxiv ntawm chromium thiab lwm yam alloying ntsiab ua rau cov yeeb nkab muaj peev xwm tswj tau nws lub zog thiab kev ncaj ncees ntawm qhov kub siab.
Mechanical Strength: ASTM A691 1 CR steel yeeb nkab yog tsim los kom muaj zog tensile zoo, yield zog, thiab toughness, ua rau nws haum rau siab - kev siv siab.
A691 Qib 1Cr Tshuaj Ntsuam Xyuas:
|
Lub npe |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
|
ASTM A 691 1Cr |
0.05-0.17 |
0.40- 0.65 |
0.035 |
0.035 |
0.50-0.80 |
1.00-1.50 |
0.45-0.65 |
A691 Qib 1Cr Lub cev muaj zog:
|
Lub npe |
Lub zog tensile Ksi [MPa] |
Yield zog, min Ksi [MPa] |
Elongation hauv 8 nti. [200mm], min % |
|
ASTM A691 Qib 1 Cr |
65300 - 84800 [450 - 585] |
39900 [275] |
22 |
Kev tsim khoom:
Cov yeeb nkab steel no feem ntau yog tsim los siv hluav taws xob fusion vuam (EFW), uas cuam tshuam cov npoo ntawm cov hlau phaj thiab nias lawv ua ke los tsim cov vuam.
Cov txheej txheem tsim khoom raug tswj xyuas kom zoo kom ntseeg tau tias cov yeeb nkab ua tau raws li qhov xav tau tshwj xeeb rau cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab qhov tseeb.
Daim ntawv thov:
ASTM A691 1 CR steel yeeb nkab feem ntau yog siv rau hauv kev lag luam xws li roj thiab roj, petrochemical, thiab hluav taws xob tsim hluav taws xob, qhov twg siab - kev pabcuam siab ntawm qhov kub nruab nrab yog xav tau.
Nws yog qhov tsim nyog rau cov ntawv thov xws li cov kav dej nkev, siab - cov kab dej siab, thiab lwm yam kev thauj cov kua dej uas muaj kev tiv thaiv corrosion thiab siab - qhov kub thiab txias ua haujlwm tseem ceeb.
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