1. ** Dab tsi yog astm yeeb nkab qib? **
ASTM cov xaim xaim yog cov kev faib tawm tshwj xeeb hauv cov tshuaj Astm Cov piv txwv suav nrog qib A, B, C hauv Astm A53 lossis qib B hauv Astm A106.
2. ** Dab tsi yog qhov sib txawv ntawm ASTM thiab ASME YEEB? **
* ** ASTM: ** Tsom rau cov khoom siv tshwj xeeb rau ** (Tshuaj lom neeg, cov txheej txheem tsim kho, tsim khoom) rau cov yeeb nkab nws tus kheej.
* ** ASME: ** Tsom ntsoov rau ** Tsim kev tsim qauv, tshuaj xyuas, cov hlab ntsha, cov raj mis siab, thiab siv * lwm yam khoom siv). ASME feem ntau adopts cov khoom siv astm (piv txwv li} {
3. ** Yuav ua li cas 3 qib ntawm cov yeeb nkab steel? **
Ntau hom "3 qib" xa mus rau cov qib muaj zog teev nyob rau hauv cov siv dav dua ** ASTM A53 ** tus qauv rau cov yeeb nkab steel:
* ** QIB A: ** QIB QIB XA XEED lub zog (30 KSI \/ 205 MPA).
* ** Qib B: ** Rau siab dua cov txiaj ntsig lub zog (35 ksi \/ 240 MPa) - feem ntau tau teev tseg.
* ** QIB C: ** (tsawg dua) yuav tsum muaj kev ntsuas tshuaj thiab muaj lub zog siab dua.
4. ** Tus Astm qib txhais li cas? **
Tus qauv "ASTM qib" yog ib qho kev tsim tshwj xeeb nyob rau hauv ib qho qauv Astm uas txhais tau qhov kev xav tau ntawm cov khoom ntawd. Nws qhia txog cov tshuaj lom neeg muaj kev txwv, yam tsawg kawg nkaus siv lub zog), kev kho cua sov, tsim khoom siv rau cov khoom uas tau them rau cov txheej txheem tshwj xeeb.
5. ** Dab tsi yog 6 hom Astm? **
ASTM International nthuav dav ntau ntau sib txawv * hom * ntawm cov qauv. 6 cov pawg loj yog:
1. ** Cov Qauv Cov Qauv: ** Ua kom cov kev cai rau cov ntaub ntawv, cov khoom lag luam, cov tshuab, lossis cov kev pabcuam (piv txwv li cov kev pabcuam A106 rau cov yeeb nkab).
2. ** Kawm cov txheej txheem ntsuas: ** Qhia cov txheej txheem kuaj, cov khoom lag luam, lossis tshuab A370 rau kev ntsuas tshuab).
3. ** Kev xyaum txheem: ** Qhia txog cov txheej txheem uas tau lees paub rau kev ua haujlwm (piv txwv li, kev sib piv, kev teeb tsa, installation).
4. ** Qhia cov qauv: ** Cov ntaub ntawv lossis cov kev xaiv tsis muaj kev pom zoo ib qho kev ua tshwj xeeb.
5. ** Cov lus siv txheej txheem txheem: ** Piav cov ntsiab lus siv nyob rau hauv lwm cov qauv ASTM.
6. ** Kev faib tawm qauv: ** Ib pawg neeg siv khoom, cov khoom lag luam, cov tshuab lossis cov kev pabcuam raws cov yam ntxwv zoo sib xws.
