4140 / 42CrMo High Strength Alloy Hlau
HOM: PROMISTEEL
Qib: AISI 4140, 42CrMo, 42CrMo4 (1.7225), SCM440
PIB: Round Bar, Flat Bar, Heavy Phaj, Thaiv
KEV PAB CUAM: Kub Rolled, Annealed, Q + T (Pre-hardened)
HARDNESS: QT Lub Sij Hawm: 28-32 HRC; Annealed: Tsawg dua lossis sib npaug rau 217 HB
FEATURE: Siab zog, Siab Fatigue Resistance
APPLICATION: Axles, Drive Shafts, Iav, Laum dab tshos, Bolts
MOQ: 25 Tuj
AISI 4140 (42CrMo)yog lub ntiaj teb no ntau yam thiab dav siv "Chrome-Moly" hlau alloy. Nws yog renowned rau nws zoo heev tshuav nyiaj li caslub zog, toughness, thiab hnav tsis kam.
Tsis zoo li tus qauv carbon steel, qhov sib ntxiv ntawmChromium (Cr)thiabMolybdenum (hli)tso cai rau 4140 los ua cua sov- kho kom zoo li qub thaum tuav lub zog qaug zog. Peb muab cov khoom no feem ntau hauv covQuenched thiab Tempered (Q + T)mob (feem ntau yog 28-32 HRC), uas tso cai rau cov neeg siv khoom siv cov khoom siv ncaj qha yam tsis muaj kev kho cua sov ntxiv, tsis txhob muaj kev pheej hmoo cuam tshuam. Nws yog cov khoom ntawm kev xaiv raufais fab kis qhov chawhauv automotive, roj & roj, thiab mining industries.
Khoom Specifications & Qib sib npaug
Peb muab siab -lub zog 4140/42CrMo steel ua tau raws li cov qauv thoob ntiaj teb, ua kom muaj kev sib raug zoo rau cov haujlwm thoob ntiaj teb.
Table-1
Tus qauv universal rau engineering alloy steel.
International Grade Cokev sib tw |
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| GB (Tuam Tshoj) | ASTM / AISI (USA) | DIN / EN (Lub teb chaws Yelemees) | JIS (Nyiv) | ISO |
| 42CrMo | 4140 | 1.7225 (42CrMo4) | SCM440 | 42CrMo4 |
| 35CrMo | 4135 | 1.7220 (34CrMo4) | SCM435 | - |
| 30 CrMo | 4130 | 1.7218 (25CrMo4) | SWM 430 | - |
Table-2
Molybdenum muab sib sib zog nqus hardenability thiab tiv thaiv temper brittleness.
Chemical Composition (Mass Feem pua % |
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| Qib | C | Cr | Mo | Mn | Si |
| 4140/42CrMo | 0.38~0.45 | 0.90~1.20 | 0.15~0.25 | 0.60~0.90 | 0.15~0.35 |
| 1.7225 (42CrMo4) | 0.38~0.45 | 0.90~1.20 | 0.15~0.30 | 0.60~0.90 | Tsawg dua los yog sib npaug li 0.40 |
| SCM440 | 0.38~0.43 | 0.90~1.20 | 0.15~0.30 | 0.60~0.85 | 0.15~0.35 |
Table-3
Cov khoom lag luam loj loj ntawm txoj kab uas hla loj thiab cov phaj hnyav.
Supply Range & Formts ua |
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| Yam khoom | Qhov Loj (mm) | Kev Xa Khoom | Nto tiav |
| Round Bar | Dia: 16 - 800 | Kub Rolled / Forged / QT |
Dub / Peeled / Tig |
| Pav ca Bar | 20 - 400 x 50 - 1000 | Forged / Milled |
Machined (6-Sab) |
| Phaj | Thickness: 10 - 300 | Kub Rolled / QT |
Dub / Txhaj tshuaj tiv thaiv |
| Thaiv | Txiav txiav | Forged | Sawn / Milled |
Ntsiab nta thiabQhov zoo
- High Hardenability:Lub Chromium-Molybdenum alloy tso cai rau cov hlau kom tawv heev, ua kom muaj zog zoo ib yam txawm tias nyob hauv cov ntoo khaub lig loj - ntu (piv txwv li, 500mm txoj kab uas hla).
- Zoo Fatigue Strength:Zoo tagnrho rau cov khoom uas raug rau lub voj voog thiab kev vibration, xws li lub tsheb qag thiab cov dab tshos laum.
- Ua ntej-hardened (QT) Muaj:Peb Tshuag 4140 nyob rau hauvUa ntej-hardened (28-32 HRC)mob. Qhov no tshem tawm cov nqi thiab lub sijhawm ntawm kev tshaj tawm -kev kho cua sov thiab ua kom tsis muaj kev sib tsoo ntawm qhov kawg.
- Zoo machinability:Nyob rau hauv lub annealed los yog pre{0}}hardened lub xeev, nws tshuab zoo nrog ib tug zoo nto tiav.
- Impact Toughness:Superior rau tus qauv carbon steel (xws li 1045), tiv thaiv kev puas tsuaj hauv qab kev poob siab.
Tej kev siv
4140/42CrMo yog "Cov Neeg Ua Haujlwm" ntawm lub ntiaj teb engineering:
Roj & Roj
Laum dab tshos, kelly tuav, thiab sub-sea fasteners (yuav tsum tau nruj API qauv).
Automotive
Qag shafts, crankshafts, txuas rods, thiab steering knuckles.
Tshuab
Cov iav loj, spindles, conveyor rolls, thiab siab -tensile bolts (Qib 10.9).
Mining
Excavator pins, pob zeb crusher shafts, thiab hydraulic kheej kheej rods.
Pwm Bases
Feem ntau siv los ua lub siab - lub zog tuav thaiv rau cov pwm yas.
FAQ
Q1: Qhov txawv ntawm 4140 thiab 42CrMo yog dab tsi?
A1: Lawv zoo ib yam . 4140 yog Asmeskas (AISI) kev xaiv, thaum 42CrMo yog Suav (GB) xaiv. Lawv cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab yog sib pauv tau hauv 99% ntawm cov duab kos duab engineering.
Q2: "4140 QT" txhais li cas?
A2: QT stands rau Quenched thiab Tempered. Nws txhais tau hais tias cov hlau twb tau tshav kub lawm -kho mus rau ib tug hardness ntawm feem ntau 28-32 HRC (280-320 HB). Koj tuaj yeem tshuab nws ncaj qha mus rau hauv ib qho tiav yam tsis muaj kev kho cua sov ntxiv. Nov yog peb qhov kev xa khoom nrov tshaj plaws.
Q3: 4140 steel puas tuaj yeem welded?
A3: Yog, tab sis ceev faj. Vim nws hardenability, 4140 yog nquag tawg yog welded txias. Nws yuav tsum tau preheated (rau approx . 200-300℃) ua ntej vuam thiab txias tom qab ntawd maj mam. Siv tsawg-hydrogen electrodes.
Q4: Puas yog 4140 muaj zog dua li 1045 steel?
A4: Yog, qhov tseem ceeb . 4140 muaj zog tensile ntau dua, lub zog tawm los, thiab qaug zog tsis kam tshaj 1045 carbon steel . 4140 yog siv thaum 1045 tsis muaj zog txaus los tiv thaiv kev khoov lossis tawg.
Cim npe nrov: 4140 / 42crmo siab zog alloy steel, Tuam Tshoj 4140 / 42crmo siab zog alloy steel manufacturers, lwm tus neeg
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