Steel yog dab tsi?
Hlau yog ib qho hlau ntawm Hlau thiab lub ntsiab lus tseem ceeb (lub ntsiab) alloying yog carbon. Txawm li cas los xij, muaj qee qhov kev zam rau cov ntsiab lus no xws li interstitial-free (IF) steels thiab hom 409 ferritic stainless hlau, uas carbon yog suav tias yog impurity.
Alloy yog dab tsi?
Thaum cov khoom sib txawv sib xyaw ua ke hauv cov khoom me me hauv lub hauv paus, cov khoom tsim tau hu ua alloy ntawm lub hauv paus ntsiab lus. Li no cov hlau yog cov hlau hlau vim hlau yog lub hauv paus (cov ntsiab lus tseem ceeb) hauv cov hlau thiab cov ntsiab lus tseem ceeb ntawm cov hlau yog carbon. Qee lwm yam khoom xws li Manganese, Silicon, Nickel, Chromium, Molybdenum, Vanadium, Titanium, Niobium, Aluminium, thiab lwm yam kuj tau ntxiv rau ntau qhov sib txawv los tsim cov qib sib txawv (lossis hom) ntawm Hlau.
Jindalai (Shandong) Steel Group Co., Ltd. yog ib tus kws tshaj lij thiab ua tus xa khoom ntawm cov hlau thiab stainless hlau tuav / kav / coils / phaj. Xa koj cov lus nug thiab peb yuav zoo siab los sab laj koj tus kws tshaj lij.
Dab tsi yog Qhov Sib Txawv Ntawm Cov Hlau?
Raws li cov tshuaj muaj pes tsawg leeg, Hlau tuaj yeem muab faib ua plaub (04) yam yooj yim:
● Carbon Steel
● Stainless Hlau
● Alloy Steel
● Cov cuab yeej hlau
1. Carbon hlau:
Cov pa roj carbon steel yog cov hlau siv ntau tshaj plaws hauv kev lag luam thiab suav txog ntau dua 90% ntawm tag nrho cov hlau tsim. Raws li cov ntsiab lus carbon, Carbon steels tau muab faib ua peb pawg.
● Tsawg Carbon Steel/Mild Steel
● Nruab nrab Carbon Steel
● High Carbon steel
Cov ntsiab lus carbon tau muab rau hauv cov lus hauv qab no:
| Tsis muaj. | Hom carbon hlau | Qhov feem pua ntawm Carbon |
| 1 | Tsawg carbon steel / me me steel | Txog li 0.25% |
| 2 | Nruab nrab Carbon Steel | 0.25% rau 0.60% |
| 3 | High Carbon hlau | 0.60% txog 1.5% |
2. Stainless hlau:
Stainless hlau yog cov hlau alloy uas muaj 10.5% Chromium (yam tsawg kawg nkaus). Stainless hlau nthuav tawm cov khoom tiv thaiv corrosion, vim yog tsim cov txheej nyias nyias ntawm Cr2O3 ntawm nws qhov chaw. Cov txheej no tseem hu ua passive txheej. Kev nce ntxiv ntawm Chromium yuav ua rau kom muaj kev tiv thaiv corrosion ntawm cov khoom. Ntxiv nrog rau Chromium, Nickel thiab Molybdenum kuj tau ntxiv rau cov khoom xav tau (lossis txhim kho) cov khoom. Stainless hlau kuj tseem muaj ntau qhov sib txawv ntawm Carbon, Silicon, thiab Manganese.
Stainless hlau yog ntxiv cais raws li;
1. Ferritic Stainless hlau
2. Martensitic Stainless hlau
3. Austenitic Stainless Steels
4. Duplex Stainless Hlau
5. Precipitation-Hardening (PH) Stainless Steels
● Ferritic Stainless Steel: Ferritic steels muaj Iron-Chromium alloys nrog lub cev-centered cubic crystal lug (BCC). Cov no feem ntau sib nqus thiab tsis tuaj yeem ua kom tawv nqaij los ntawm kev kho cua sov tab sis tuaj yeem ua kom muaj zog los ntawm kev ua haujlwm txias.
● Austenitic Stainless Steel: Austenitic steels yog cov corrosion-resistant tshaj plaws. Nws yog non-magnetic thiab tsis-kub-kho. Feem ntau, austenitic steels yog cov weldable heev.
● Martensitic Stainless Steel: Martensitic stainless hlau yog qhov muaj zog thiab tawv heev tab sis tsis muaj corrosion-resistant li ob chav kawm. Cov hlau no yog machinable heev, sib nqus, thiab kub-kho tau.
● Duplex Stainless Steels: Duplex stainless hlau muaj ob-theem microstructure uas muaj cov nplej ntawm ferritic thiab austenitic stainless hlau (ie Ferrite + Austenite). Duplex steels yog kwv yees li ob zaug muaj zog li austenitic lossis ferritic stainless hlau.
● Precipitation-Hardening (PH) Stainless Steels: Precipitation-Hardening (PH) Stainless Steels muaj Ultra siab zog vim nag lossis daus hardening.
3. Alloy hlau
Nyob rau hauv cov hlau alloy, sib txawv proportions ntawm alloying ntsiab yog siv, kom ua tau raws li qhov xav tau (txhim kho) cov khoom xws li weldability, ductility, machinability, lub zog, hardenability thiab corrosion kuj, thiab lwm yam. Qee qhov feem ntau siv alloying ntsiab thiab lawv cov teebmeem yog raws li nram no;
● Manganese - Ua kom muaj zog thiab hardness, txo ductility thiab weldability.
● Silicon - Siv los ua deoxidizers siv hauv cov txheej txheem steel.
● Phosphorus - Ua kom muaj zog thiab hardness thiab txo cov ductility thiab notch cuam tshuam toughness ntawm hlau.
● Sulfur -Tsawg ductility, notch cuam tshuam toughness, thiab weldability. Pom nyob rau hauv daim ntawv ntawm sulfide inclusions.
● Copper – txhim kho corrosion kuj.
● Nickel – Nce hardenability thiab cuam tshuam lub zog ntawm steels.
● Molybdenum - Ua kom muaj zog thiab txhim khu kev nkag siab ntawm cov hlau tsis tshua muaj hlau.
4. Cov cuab yeej hlau
Cov cuab yeej steel muaj cov ntsiab lus carbon siab (0.5% txog 1.5%). Cov ntsiab lus carbon ntau dua muab cov hardness thiab lub zog ntau dua. Cov hlau no feem ntau yog siv los ua cov cuab yeej thiab tuag. Cov cuab yeej steel muaj ntau yam ntawm tungsten, cobalt, molybdenum, thiab vanadium los ua kom sov thiab hnav tsis kam, thiab ua haujlwm ntev ntawm cov hlau. Qhov no ua rau cov cuab yeej steel zoo tagnrho rau siv los ua cov cuab yeej txiav thiab drilling.
Jindalai Steel Group nyob ruaj khov nrog cov khoom muag zoo tshaj plaws ntawm cov khoom siv hlau hauv kev lag luam. Jindalai tuaj yeem pab koj xaiv cov khoom siv hlau tsim nyog kom ntseeg tau tias koj tau txais yam koj xav tau sai li sai tau thaum lub sijhawm yuav khoom. Yog tias cov ntaub ntawv steel yuav yog nyob rau hauv koj lub neej yav tom ntej, thov ib nqe lus. Peb yuav muab ib qho uas tau txais koj raws nraim cov khoom koj xav tau sai.
HOTLINE:+86 18864971774WECHAT: +86 18864971774WhatsApp:https://wa.me/8618864971774
EMAIL:jindalaisteel@gmail.com sales@jindalaisteelgroup.com WEBSITE:www.jindalaisteel.com
Post lub sij hawm: Dec-19-2022