** 1. Dab tsi yog A500 steel yeeb nkab? **
ASTM A500 yog tus qauv kev qhia tshwj xeeb rau cov khaub ncaws txias thiab seamless cov hlau txheem tub rog hauv puag ncig, square, thiab duab plaub. Nws yog feem ntau siv nyob rau hauv cov ntawv thov txheej txheem xws li cov tuam tsev, txuas hniav, thiab kev tsim kho dav. Cov hlau tsim los rau cov laj thawj cov kabmob thiab muab kev sib npaug ntawm lub zog, ua rau, thiab weldability.
** 2. Dab tsi yog qhov sib txawv ntawm Astm A500 thiab A36? **
- ** DAIM NTAWV THOV **: ASTM A500 Npog AVINGCOLOGCAL HLAU HLAU, THAUM AVE GARBONE HLAU STEEND STATCH STARDING rau daim hlau, tuav, thiab cov qauv txheej txheem (piv txwv li, i-nqaj).
- ** COV KHOOM SIV **: A500 yog qhov tsim kom txias thiab ua kom zoo rau cov qauv tubular, piv txwv, 42-50 ksi rau qib C) piv rau A36 (36 KSI tsawg kawg lub zog).
- ** Cov tshuaj chemistry **: A500 muaj cov roj ntsha tswj cov tshuaj tiv thaiv kom ntseeg tau tias weldability thiab formability, thaum A36 yog ntau dua.
** 3. Qhov sib txawv ntawm qib C thiab qib B A500 yog dab tsi? **
- ** Lub zog **: Qib C muaj tsawg dua XEEM tawm zog (50 ksi vs. thiab tensile lub zog (62 ksi vs. 58 ksi).
- ** Cov chemistry **: Qib C feem ntau muaj cov roj carbon me ntsis thiab manganese ntau dua qib B kom ua tiav lub zog txhim kho.
- ** COV APPSTORS **: Qib C yog siv rau cov khoom hnyav txheem hnyav, thaum qib kawm B yog tsim nyog rau kev siv kev ntxhov siab ntau.
** 4. Dab tsi yog sib npaug ntawm Astm A500 qib? **
Cov sib npaug thoob ntiaj teb suav nrog:
- ** EN 10219 ** (Tebchaws Europe): Cov Qauv Welded Welded Cov Lus Hollow.
- ** JIS G3466 ** (Nyiv): Carbon Steel Square thiab duab plaub rau cov hom phiaj txheej txheem.
- ** GB \/ T 6728 ** (Suav teb): Tsim cov kab hlau hollow rau cov qauv dav dav.
Cov qauv no muaj cov khoom zoo sib xws tab sis tej zaum yuav txawv hauv kev sim lossis tshuaj lom neeg.
** 5. Dab tsi yog qhov sib txawv ntawm Astm A500 thiab A53? **
- ** HOMQU ** A500 yog rau cov ntawv thov teeb tsa (piv txwv li, cov tuam tsev), thaum A53 yog rau cov ntawv thov siab thiab tshuab hluav taws xob, qis-siab pipelines).
- ** Kev tsim khoom **: A53 suav nrog cov kav dej tsis muaj qab thiab welded, feem ntau kub-dip galvanized, heas A500 tsom rau cov qauv khaub ncaws khaub thuas khaub ncaws khaub ncaws txias.
- ** Daim ** Daim **: A500 npog puag ncig, square, thiab cov plaub hau; A53 yog ib txwm puag ncig.
- ** Cov cuab yeej siv neeg kho mob **: A500 muaj cov muaj zog dua yuav muab piv rau A53 (piv txwv li cov qib B A53 muaj lub zog rau 45 kSI rau A500 qib C).
