1. ** Hardness ntawm St37 Hlau **
St37 steel (ib hom hlau sib xyaw ua ke hauv Tebchaws Europe, sib npaug ntawm tus kheej li ntawm ** ntawm HB **, nyob ntawm kev kho kom sov thiab tuab. Nws tsis yog lub hardness hlau, raws li nws ua ntej pib thiab weldability rau cov ntawv thov.
2. ** Qhov sib txawv ntawm A36 thiab ST37 **
- ** A36 (ASTM Txuj Ci, Tebchaws Asmeskas): ** Yam tsawg kawg nkaus
- ** ST37 (DIN \/ EN TXIV, Tebchaws Europe): ** MPa yam tsawg kawg nkaus lub zog ntawm 235 MPa, zoo dua haum rau kev ua kom txias.
- ** APP daim ntaub ntawv: ** A36 yog siv dav hauv Asmeskas, thaum ST37 muaj ntau nyob hauv Tebchaws Europe. Ob qho tib si yog General-hom phiaj qauv cov hlau, tab sis St37 muaj cov elongation zoo dua (ductility).
3. ** Toughness ntawm St37 **
St37 tau muaj kev sib zog ua kom muaj zog, haum rau cov khoom siv hluav taws xob zoo li qub thiab kev ntxhov siab me me. Nws charpy v-notch cuam tshuam lub zog ntawm chav sov yog nyob ib ncig ntawm **, nyob ntawm cov qhab-nees **, piv txwv li st {} lossis st 37-3). Nws tsis pom zoo rau qhov ntsuas kub tsawg lossis theem siab-feem pua uas ib puag ncig uas tsis muaj kev sim ntxiv.
4. ** Nqe ntawm St37 khoom **
Raws li 2023, st37 steel nqi kwv yees li ** $ 600- $ 900 tauj ib tus metric tuj **, sib txawv ntawm thaj tsam, cov khoom muag, thiab daim ntawv (daim ntawv). Tus nqi ua haujlwm ua ke nrog cov khoom siv raw (hlau ore, lub zog) thiab xav tau.
5. ** Kev ntxhov siab pub rau Steel 37 (St37) **
Kev lom zem rau kev ntxhov siab yog nyob ntawm tus qauv tsim (piv txwv li, Eurocode, Din). Rau ST37 (S235JR):
- ** Tensile Kev ntxhov siab (nyab xeeb thauj khoom): ** ~ 140-160 mpa (qhov kev nyab xeeb thov kom tau lub zog los).
- ** COMPRESSION \/ DABTSI YOG KHOOV: ** Ntau yam zoo sib xws, kho rau kev pheej hmoo buckling. Yuav tsum tau tham sab laj cov cuab yeej engineering rau cov ntawv thov tshwj xeeb.
