AISI 4140 1.7225 42CrMo4 SCM440 B7 Hlau Bar
Lus piav qhia luv luv:
AISI SAE 4140 alloy steel yog chromium molybdenum alloy steel specification dav siv nyob rau hauv dav dav lub hom phiaj siab tensile steel rau Cheebtsam, xws li axles, shafts, bolts, zog thiab lwm yam kev siv.
Carbon Steel Bars:
AISI 4140, 1.7225 (42CrMo4), SCM440, thiab B7 Steel Bar yog cov qauv sib txawv rau qhov tseem ceeb ntawm tib hom hlau alloy. Lawv paub txog lub zog siab thiab toughness, feem ntau siv rau hauv daim ntawv thov xws li lub zog thiab bolts. AISI 4140 yog Asmeskas kev xaiv, 1.7225 yog European EN tus qauv, SCM440 yog Japanese JIS tsim, thiab B7 yog hais txog qib kev sib ntsib ASTM A193 specifications. Cov npe no sawv cev rau chromium-molybdenum alloy steel nrog cov khoom zoo sib xws, thiab kev xaiv yuav nyob ntawm cheeb tsam lossis cov qauv kev lag luam.
Specifications ntawm 4140 1.7225 42CrMo4 SCM440 B7:
| Qib | 4140 1.7225 42CrMo4 SCM440 B7 |
| Txuj | ASTM A29, ASTM A193 |
| Nto | Dub, ntxhib Machined, tig |
| Txoj kab uas hla | 1.0 ~ 300.0 hli |
| Ntev | 1 mus rau 6 meters |
| Kev ua haujlwm | Cold Drawn & Polished Cold Drawn, Centreless Av & Polished |
| Raw Khoom | POSCO, Baosteel, TISCO, Saky Steel, Outokumpu |
Nta & Cov txiaj ntsig:
•Lub zog muaj zog: Cov hlau tuav no muaj lub zog tensile siab, ua rau lawv haum rau cov ntawv thov uas muaj zog thiab kav ntev yog qhov tseem ceeb.
•Toughness: Lawv muaj qhov zoo toughness thiab cuam tshuam tsis kam, ua rau lawv muaj peev xwm tiv taus cov khoom hnyav thiab kev ntxhov siab.
•Versatility: AISI 4140, 1.7225, 42CrMo4, SCM440, thiab B7 yog ntau yam alloys haum rau ntau yam kev siv, nrog rau cov iav, bolts, shafts, thiab cov khoom siv.
•Hnav Resistance: Cov ntsiab lus alloying, xws li chromium thiab molybdenum, pab txhim kho kev hnav tsis kam, ua rau cov hlau tuav no tsim nyog rau cov ntawv thov raug mob.
•Machinability: Cov hlau no muaj kev ua haujlwm zoo thaum kho cua sov kom zoo, ua kom cov txheej txheem ua haujlwm zoo thaum tsim khoom.
•Weldability: Lawv tuaj yeem welded, txawm hais tias preheating thiab tom qab vuam kev kho cua sov yuav tsum tau ua kom cov khoom xav tau thiab zam cov teeb meem xws li brittleness.
Chemical Composition:
| Qib | C | Mn | P | S | Si | Cr | Mo |
| 4 140 | 0.38-0.43 Nws | 0.75-1.0 Nws | 0.035 ib | 0.040 ib | 0.15-0.35 dr hab | 0.8-1.10 Nws | 0.15-0.25 dr hab |
| 42CrMo4 / 1.7225 ib | 0.38-0.45 Nws | 0.6-0.90 Nws | 0.035 ib | 0.035 ib | 0.40 Nws | 0.9-1.20 Nws | 0.15-0.30 Nws |
| SCM440 | 0.38-0.43 Nws | 0.60-0.85 Nws | 0.03 ib | 0.030 Nws | 0.15-0.35 dr hab | 0.9-1.20 Nws | 0.15-0.30 Nws |
| B7 | 0.37-0.49 Nws | 0.65-1.10 Nws | 0.035 ib | 0.040 ib | 0.15-0.35 dr hab | 0.75-1.20 Nws | 0.15-0.25 dr hab |
Mechanical zog:
| Qib | Tensile zog [MPa] | Yiled zog [MPa] | Elongation% |
| 4 140 | 655 | 415 | 25.7 ib |
| 1.7225/42CrMo4 | 1080 | 930 ua | 12 |
| SCM440 | 1080 | 930 ua | 17 |
| B7 | 125 | 105 | 16 |
FAQ Qhia:
Vim li cas thiaj xaiv peb?
•Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
•Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
•Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
•Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
•Muab SGS TUV daim ntawv qhia.
•Peb muaj siab rau peb cov neeg muas zaub. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
•Muab kev pabcuam ib-nres.
4140 vs 42CRMO4 - Qhov txawv yog dab tsi?
AISI 4140 thiab 42CrMo4 yog qhov tseem ceeb tib yam hlau, nrog AISI 4140 yog Asmeskas kev xaiv thiab 42CrMo4 yog European xaiv. Lawv muab cov tshuaj zoo sib xws, muaj zog, thiab tawv, ua rau lawv tsim nyog rau kev siv xws li cov iav thiab bolts. Txawm hais tias muaj kev sib txawv thiab cov qauv hauv cheeb tsam, lawv feem ntau suav hais tias hloov pauv tau vim muaj cov khoom sib piv.
42CrMo4 steel yog dab tsi?
42CrMo4 yog chromium-molybdenum alloy hlau tsim los ntawm European tus qauv EN 10083. Nws yog lub npe hu rau nws lub zog siab, toughness, thiab zoo hardenability. Nrog rau cov ntsiab lus carbon ntawm 0.38% mus rau 0.45%, nws yog feem ntau siv rau hauv cov ntawv thov uas yuav tsum muaj cov khoom siv muaj zog, xws li lub zog, crankshafts, thiab txuas cov pas nrig hauv kev lag luam xws li tsheb thiab aerospace. Cov hlau teb zoo rau kev kho cua sov, muab lub peev xwm los kho cov khoom siv kho tshuab, thiab nws raug suav tias yog qhov sib npaug thoob ntiaj teb rau lwm qhov kev xaiv xws li AISI 4140 thiab SCM440.
Qib B7 steel yog dab tsi?
Qib B7 yog ib qho kev qhia tshwj xeeb hauv ASTM A193 tus qauv, uas suav nrog cov ntaub ntawv muaj zog bolting rau kev siv hauv qhov kub thiab txias. ASTM A193 yog tus qauv tsim los ntawm ASTM International (yav tas los hu ua American Society for Testing and Materials) thiab siv dav hauv cov roj thiab roj, petrochemical, thiab hluav taws xob tsim kev lag luam.Grade B7 steel yog cov hlau tsis tshua muaj chromium-molybdenum steel. uas yog quenched thiab tempered (kub-kho) kom ua tau raws li qhov xav tau ntawm cov khoom siv kho tshuab.Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias Qib B7 steel feem ntau yog siv ua ke nrog Qib 2H txiv ntseej los xyuas kom meej kev sib raug zoo thiab kev ua tau zoo hauv kev thov. Thaum tau teev tseg, cov ntaub ntawv yuav tsum ua kom tau raws li qhov yuav tsum tau teev tseg hauv ASTM A193 thiab A194 tus qauv kom paub meej tias lub zog zoo, ductility, thiab lwm yam khoom siv kho tshuab.
Peb Cov Neeg Siv Khoom
Cov lus teb los ntawm peb cov neeg siv khoom
AISI 4140, 1.7225, 42CrMo4, SCM440, thiab B7 steel bars teb zoo rau kev kho cua sov, tso cai rau kev hloov kho ntawm cov khoom siv xws li hardness thiab toughness.Cov steel tuav no muaj lub zog tensile siab, ua rau lawv haum rau cov ntawv thov uas lub zog yog qhov tseem ceeb. factor.Lawv muaj zoo toughness thiab cuam tshuam tsis kam, ua rau lawv muaj peev xwm tiv taus hnyav loads thiab dynamic stresses.Cov steel tuav muaj ntau yam thiab nrhiav kev siv nyob rau hauv ntau yam industries, xws li automotive, aerospace, kev tsim kho, thiab manufacturing.The alloying ntsiab, xws li chromium thiab molybdenum, pab txhawb kev txhim kho hnav tsis kam, ua rau cov hlau tuav no haum rau cov ntawv thov raug rau cov mob abrasive.
Ntim:
1. Kev ntim khoom yog qhov tseem ceeb heev tshwj xeeb tshaj yog nyob rau hauv rooj plaub ntawm kev xa khoom thoob ntiaj teb uas cov khoom xa tuaj hla ntau txoj hauv kev kom mus txog qhov kawg, yog li peb muab kev txhawj xeeb tshwj xeeb txog kev ntim khoom.
2. Saky Steel pob peb cov khoom hauv ntau txoj hauv kev raws li cov khoom lag luam. Peb ntim peb cov khoom nyob rau hauv ntau txoj kev, xws li,
