Txheej txheem cej luam ntawm 12L14 Dawb-txiav Steel
A steel nrog ntau dua li ib txwm cov ntsiab lus ntawm leej faj thiab phosphorus npaj rau fabrication ntawm qhov chaw rau high-ceev tsis siv neeg thiab semiautomatic tshuab cuab yeej. Dawb-txiav steel yog tsim nyob rau hauv daim ntawv ntawm rods, thiab nws muaj 0.08-0.45 feem pua carbon, 0.15-0.35% silicon, 0.6-1.55% manganese, 0.08-0.30% sulfur thiab 0.05-0.16% phosphorus. Cov ntsiab lus ntawm cov sulfur siab ua rau muaj kev sib xyaw ua ke (piv txwv li, manganese sulfide) pov tseg raws cov nplej. Cov kev suav nrog no pab txhawb kev sib tsoo thiab txhawb kev sib tsoo thiab yooj yim nti tsim. Rau cov hom phiaj no, dawb-txiav steel yog qee zaum alloyed nrog txhuas thiab tellurium.
12L14 yog ib hom resulfurized thiab rephosphorized carbon steel rau dawb-txiav thiab machining daim ntaub ntawv. Cov qauv hlau (tsis siv neeg hlau) muaj kev ua haujlwm zoo heev thiab lub zog qis dua vim yog cov hlau alloying xws li Sulfur thiab Lead, uas tuaj yeem txo qhov kev ua haujlwm siab thiab txhim kho qhov tiav thiab qhov tseeb ntawm cov khoom siv. 12L14 steel tau siv dav hauv kev tsim cov cuab yeej ntsuas qhov tseeb, qhov chaw tsheb thiab qhov tseem ceeb ntawm ntau yam ntawm cov tshuab, raug siv xws li bushings, shafts, inserts, couplings, fittings thiab lwm yam.
12L14 steel sib npaug khoom
AISI | JIS | DIN | GB |
12 l14 | TSUM 24L | 95 np28 | y15 peb |
12L14 Tshuaj muaj pes tsawg leeg
Khoom siv | C | Si | Mn | P | S | Pb |
12 l14 | ≤ 0.15 | (≤0.10) | 0.85-1.15 Nws | 0.04-0.09 Nws | 0.26-0.35 dr hab | 0.15-0.35 dr hab |
12L14 Mechanical Property
Tensile zog (MPa) | Yield zog (MPa) | Elongation (%) | Txo thaj tsam (%) | Hardness |
370-520 : kuv | 230-310 : kuv | 20-40 | 35-60 : kuv | 105-155 HB |
Qhov zoo ntawm 12L14 Dawb-txiav Hlau
Cov hlau machinable siab no muaj cov hlau lead thiab lwm cov ntsiab lus xws li tellurium, bismuth thiab sulfur uas ua kom muaj cov nti ntau dua thiab ua kom muaj kev ua haujlwm siab dua, yog li ua kom cov khoom tsim tau zoo thaum khaws cov cuab yeej siv.JINDALAImuab cov khoom siv dawb-txiav steels nyob rau hauv daim ntawv ntawm dov thiab kos tuav.