Nkag siab qhov txawv ntawm Carbon Steel thiab Alloy Steel

Txhais ntawm Carbon Steel thiab Alloy Steel

 

Hlau, raws li peb txhua tus paub, yog lub ntsiab lus dav dav rau hlau-carbon alloys. Carbon steel (abbreviated li carbon steel) yog hlau-carbon alloy nrog cov ntsiab lus carbon tsawg dua 2.11%. Nyob rau hauv nws cov tshuaj muaj pes tsawg leeg, ntxiv rau hlau thiab carbon, kuj tseem muaj cov impurities xws li silicon, manganese, phosphorus, thiab sulfur, thiab yuav tsis muaj lwm yam alloying ntsiab.

 

Cov txiaj ntsig ntawm carbon steel suav txog li 80% ntawm tag nrho cov khoom siv hlau, thiab tau siv dav hauv kev tsim kho, txuas hniav, tsheb, nkoj, tshuab tsim khoom, kev lag luam, petrochemicals, kev tsim kho marine thiab lwm yam.

 

Alloy steel yog cov hlau nrog ib lossis ntau dua lwm cov hlau alloying ntxiv rau cov hlau, xws li chromium, npib tsib xee, tungsten, titanium, vanadium, manganese, tooj liab, txhuas, molybdenum, thiab lwm yam, txhawm rau ua kom muaj qee yam tshwj xeeb ntawm cov hlau. Cov ntsiab lus tshuaj no tau ntxiv rau ntau qhov sib txawv / sib xyaw kom muab cov khoom sib txawv, xws li ua kom tawv tawv, txhim kho corrosion, txhim kho lub zog, txhim kho formability, hloov weldability, thiab lwm yam.

 

Cov khoom tsim tawm ntawm cov hlau alloy yog kwv yees li 20% ntawm tag nrho cov khoom tsim tawm thiab tau siv dav hauv ntau yam xws li kev tsim tshuab, petrochemicals, kev tsim kho, tshuaj niaj hnub, khoom siv kho mob, hluavtaws fibers, tsheb thauj mus los, thiab lwm yam.

 

 

Kev faib tawm ntawm Carbon Steel thiab Alloy Steel

• Classification ntawm carbon steel

Raws li cov ntsiab lus carbon, nws tuaj yeem muab faib ua: qis carbon steel, nruab nrab carbon steel, siab carbon steel; qhov siab dua cov ntsiab lus carbon, qhov siab dua qhov hardness thiab qis dua qhov toughness.

 

Cov pa roj carbon tsawg: cov ntsiab lus carbon C% ≤0.25%. Cov pa roj carbon tsawg feem ntau siv los ua cov fasteners xws li A3 steel, Q215A steel, Q235 steel, 20 # steel, 22 # steel, thiab lwm yam.

Cov pa roj carbon nruab nrab: carbon cov ntsiab lus 0.25% ＜C% ≤0.45%. Cov pa roj carbon monoxide feem ntau siv los ua cov fasteners xws li 35 # steel, 45 # steel, thiab lwm yam.

Cov pa roj carbon ntau: cov ntsiab lus carbon C% ＞ 0.45%, cov pa roj carbon siab yog qhov pib tsis siv los tsim cov fasteners ntawm kev ua lag luam, vim nws cov ntsiab lus carbon siab, cov khoom nyuaj thiab nkig, yooj yim tawg.

 

• Classification ntawm hlau alloy

Raws li tag nrho cov ntsiab lus ntawm cov ntsiab lus alloy, nws tau muab faib ua: qis alloy steel, nruab nrab alloy steel, siab alloy steel, nrog cov ntsiab lus sib txawv alloy thiab muaj pes tsawg leeg, thiab kev ua haujlwm sib txawv.

 

Cov hlau tsis tshua muaj hlau: tag nrho cov ntsiab lus alloy ≤5%;

Nruab nrab alloy steel: 5% ＜tag nrho cov ntsiab lus alloy ≤10%

High alloy steel: alloy cov ntsiab lus ≥10%.

 

Cov hlau nplaum uas siv los ua cov hlua khi xws li: 30CrMo, 40Cr, 35CrMo, 42CrMo, thiab lwm yam.

 

Cov yam ntxwv ntawm Carbon Steel thiab Alloy Steel

• Cov yam ntxwv ntawm carbon steel

Kev ua haujlwm ntawm carbon steel nyob ntawm nws cov ntsiab lus carbon. Qhov siab dua cov ntsiab lus carbon, qhov siab dua lub zog thiab hardness, thiab qis dua cov yas, toughness thiab weldability.

 

Qhov zoo: zoo plasticity thiab weldability; pheej yig tus nqi, yooj yim rau smelt; zoo ua technology; kev ua tau zoo tuaj yeem txhim kho los ntawm kev kho cov ntsiab lus carbon lossis hloov cov txheej txheem ua haujlwm;

 

Qhov tsis zoo: me ntsis lub zog tsis zoo; tsis zoo hardenability; tsis txaus kub tsis kam; tsawg corrosion kuj; tsis tshua muaj hlau nplaum conductivity; yooj yim rau magnetized nyob rau hauv ib tug magnetic teb.

 

• Cov yam ntxwv ntawm cov hlau alloy

Cov ntsiab lus sib txawv alloy ntxiv muaj cov khoom sib txawv.

 

Qhov zoo: kev ua haujlwm zoo; muaj rau lub hom phiaj tshwj xeeb; siab zog thiab siab toughness; zoo hardenability, tsis yooj yim rau deform thiab tawg; hnav tsis kam, corrosion kuj, tsis kub tsis kam, kub tsis kam, tsis muaj hlau nplaum, thiab lwm yam .;

 

Qhov tsis zoo: kim; ntau cov txheej txheem molding thiab kev kho cua sov.

 

Kev siv cov Carbon Steel thiab Alloy Steel

• Kev siv cov pa roj carbon steel

 

Cov pa roj carbon steel feem ntau yog siv los tsim ntau yam khoom siv hauv tsev, ntim khoom, thawv, lub tshuab ua kom sov thiab cov tshuab ua liaj ua teb, cov khoom siv thauj khoom me me, ntxhua khaub ncaws, cotter pins, khi rods, stampings thiab welded qhov chaw, thiab lwm yam.

 

Carbon steel siv los tsim cov fasteners

 

Q215A steel yog tsim rau kev tsim cov tshuab ntxhua khaub ncaws;

 

Q235 steel yog tsim rau kev tsim bolts, txiv ntseej, lub tes tsho lub tsho, cotter pins, rivets, thiab lwm yam, thiab feem ntau yog siv rau cov khoom uas tsis muaj hardness yuav tsum tau xws li 4.8-qib bolts, 4-qib txiv ntseej, thiab me me screws;

 

35 # steel thiab 45 # steel yog cov qauv zoo carbon steel, thiab feem ntau yog siv los tsim 8.8-qib bolts, 8-qib neeg rau thiab 8.8-qib hexagon fasteners.

 

• Kev siv cov hlau alloy

 

Alloy steel tuaj yeem siv los tsim cov khoom siv rau kev thauj mus los xws li tsheb, nkoj, thiab dav hlau; qhov chaw rau cov cuab yeej siv tshuab, foob pob ua ntxaij, cuaj luaj, thiab lwm yam .; thiab tsim ntau yam dov bearings, txiav cov cuab yeej, ntsuas cov cuab yeej, springs, kub thiab txias pwm, dov pwm, springs, twj paj nruag, thiab lwm yam.

 

Siv nyob rau hauv tshwj xeeb zaus, tshav kub-resistant thiab corrosion-resistant ib puag ncig, xws li chav turbines, boilers, chemical khoom, thiab lwm yam.

 

Alloy steel siv los tsim cov fasteners

 

Feem ntau yog siv los tsim cov bolts thiab txiv ntseej, xws li 10.9 qib cov ntaub ntawv suav nrog 30CrMo thiab 40Cr; Cov ntaub ntawv qib 12.9 suav nrog: 35CrMo, 42CrMo, thiab lwm yam.

 

30CrMo feem ntau yog siv los tsim bolts thiab studs nyob rau hauv siab loads; ntau yam fasteners siv nyob rau hauv qhov kub thiab txias (hauv qab 450 ℃) ib puag ncig xws li chav turbines thiab boilers; flanges thiab txiv ntseej siv nyob rau hauv qhov kub thiab txias (hauv qab 500 ℃) siab ib puag ncig;

 

40Cr yog tsim rau kev tsim lub tes tsho, pins, txuas qws screws, ceev, thiab lwm yam.;

 

35CrMo feem ntau yog siv los tsim ntau yam fasteners nyob rau hauv siab loads, xws li fasteners rau chav turbine generators; ntau yam fasteners siv nyob rau hauv qhov kub thiab txias (hauv qab 480 ℃) ib puag ncig xws li boilers;

 

42CrMo yog tsim rau kev tsim cov fasteners uas xav tau lub zog siab dua 35CrMo.

 

Xav txog cov yam ntxwv ntawm carbon steel thiab alloy steel, thaum xaiv cov ntaub ntawv fastener, carbon steel tuaj yeem muab qhov tseem ceeb ntawm qhov chaw ua kom tau raws li qhov yuav tsum tau siv; Yog hais tias cov specifications loj, cov duab yog complex, thiab lub zog thiab precision yuav tsum siab, los yog yuav tsum tau rau kub hardness thiab lwm yam tshwj xeeb ua yeeb yam, ces alloy steel yuav tsum tau siv.

 

Tom qab nyeem qhov no, koj tuaj yeem paub qhov txawv ntawm carbon steel thiab hlau alloy?

 

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