1. Carbon (C): max 0.22%
Cov pa roj carbon monoxide yog lub zog tseem ceeb hauv cov hlau, ua kom muaj zog thiab tensile zog.
Txawm li cas los xij, qib yog txwv raumax 0.22%khaws ciaweldability thiab ductilitythiab tiv thaiv brittleness nyob rau hauv tshav kub-cuam tshuam cheeb tsam thaum vuam.
Cov pa roj carbon tsawg kuj ua kom muaj kev sib haum xeeb rau kev khoov, dov, thiab stamping cov ntawv nyias.
2. Manganese (Mn): max 1.25%
Manganese zoo heevlub zog thiab toughnessyam tsis muaj kev txo ductility.
Nws refines lub microstructure thiab counteracts brittling nyhuv ntawm sulfur.
Ua ke nrog carbon, nws muab covYam tsawg kawg nkaus tawm lub zog ntawm 345 MPaxav tau rau kev ua tau zoo ntawm cov qauv.
3. Silicon (Si): 0.30 - 0.65%
Silicon pab txhawb rausolid-solution ntxiv dag zogthiab nce lub zog thiab hardness.
Nws kuj deoxidizes cov hlau thaum lub sij hawm tsim khoom, ua rau ib tug huv si, ntau yam microstructure nrog zoo mechanical sib xws.
Tsis zoo li qee qhov muaj zog alloys, silicon tswj kom txaus ductility rau fabrication.
4. Copper (Cu): min 0.20%
tooj liab yog feem ntau raucorrosion kuj thiab patina tsim, tab sis nws kuj muab me ntsis nag lossis daus ntxiv.
Nws me ntsis nce lub zog thaum khaws cia ductility thiab pab tswj kom muaj zog hauv qhov chaw sab nraum zoov.
5. Chromium (Cr): 0.40 - 0.65%
Chromium txhim kholub zog, hardness, thiab hnav tsis kam.
Nws stabilizes lub microstructure thiab txhim kho lub sij hawm ntev mechanical stability thaum huab cua sab nraum zoov.
Nws txhawb nqa tsis zoo deformation thaum khoov thiab tsim, txo kev pheej hmoo tawg.
6. Nickel (Ni): mus txog 0.40%
Nickel tseem ceeb txhim kholow-temperature toughness thiab ductility.
Nws pab tiv thaiv kev puas tsuaj rau hauv cov huab cua txias thaum tuav lub zog siab.
Nws kuj txo rhiab heev rau vuam thiab thermal voj voog.
7. Vanadium (V): 0.02 - 0.10%
Vanadium yog ibmicroalloying keebuas tsim kom muaj nag lossis daus thaum kub dov.
Nws muaj zog nceyield thiab tensile zogtsis txo qis ductility.
Nws refines nplej, txhim kho ob lub zog thiab toughness ib txhij.
