30CrMnSiA 30KHGSА 30ХГСА Cold Heading Steel Hlau GB /T 3077-1999 A24303
Henan phooj ywg hlau khoom Co., Ltd. yog ib tug ua manufacturers thiab lwm tus neeg ntawm 30crmnsia 30khgsа 30хгса txias taub hau steel hlau gb /t 3077-1999 a24303 nyob rau hauv Suav teb. Yog tias koj yuav mus yuav 30crmnsia 30khgsа 30хгса txias taub hau steel hlau gb /t 3077-1999 a24303 ua nyob rau hauv Suav teb, txais tos kom tau txais cov ntaub ntawv ntau ntxiv los ntawm peb lub hoobkas. Peb kuj txais customized txiav txim.
30CrMnSiA txias- taub hau steel hlau yog siab - lub zog alloy structural steel khoom raws li GB / T 3077 tus qauv (Lavxias teb sab sib npaug: 30KHGSА / 30ХГСА). Nrog rau cov ntsiab lus carbon ntawm ~ 0.3% thiab cov ntsiab lus alloying suav nrog chromium, manganese, thiab silicon, nws ua tiav lub zog tensile yam tsawg kawg nkaus ntawm 1080 MPa tom qab quenching thiab tempering. Qhov kev kho no muab qhov zoo sib npaug ntawm cov tawv tawv siab, qaug zog ua haujlwm, thiab txias formability.
Engineered rau txias-kev ua haujlwm, cov hlau no zoo tagnrho rau kev tsim cov khoom tseem ceeb-cov kabmob xws li aerospace fasteners, siab- lub zog bolts / txiv ntseej, thiab cov khoom siv hluav taws xob hauv tsheb. Nws tuav cov txheej txheem kev ncaj ncees thoob plaws qhov kub thiab txias (-40℃txog 425 degree), ua rau nws tsim nyog rau qhov xav tau ib puag ncig.
Txias- kos rau qhov ua siab ntev (± 0.02mm txoj kab uas hla), cov hlau nto yog muaj nyob rau hauv qhov kaj los yog xim dub- oxide tiav kom tau raws li ntau hom kev thov. Nws qhov tshwj xeeb qhov ruaj khov thiab qhov zoo ntawm qhov chaw ua kom muaj kev ua tau zoo ib yam hauv cov txheej txheem machining. Dav siv nyob rau hauv kev lag luam uas yuav tsum tau nruj zog thiab kev ntseeg tau cov qauv, cov hlau alloy no muab kev cia siab rau kev ua tau zoo nyob rau hauv huab mob.
Tshuaj lom neeg muaj pes tsawg leeg ntawm 30CrMnSiA(%)
| Kev sib xyaw | C | Si | Mn | P | S | Cr | Ni | Cu | Mo |
|---|---|---|---|---|---|---|---|---|---|
| Min | 0.28 | 0.9 | 0.8 | - | - | 0.8 | - | - | - |
| Max | 0.34 | 1.2 | 1.1 | 0.025 | 0.025 | 1.1 | 0.3 | 0.25 | 0.1 |
mechanical khoom
| Qauv kab d mm |
Kev kho cua sov lossis lub xeev | Tensile zog σb Mpa |
Yield point σs Mpa |
Elongation δ % |
Kev txo qis ntawm cheeb tsam ψ % |
Hardness HBW |
Kev cuam tshuam absorbed zog KV 2 J |
|---|---|---|---|---|---|---|---|
| d=25 | Quenching + tempering | Ntau dua lossis sib npaug rau 1080 | Ntau dua lossis sib npaug rau 835 | Ntau tshaj los yog sib npaug rau 10 | Ntau dua lossis sib npaug li 45 | Tsawg dua lossis sib npaug li 229 | Ntau dua lossis sib npaug li 39 |
Thaum tshav kub kub kho kub kho qhov ntau:
- Kev kub ceev: ± 15 degree
- Tsawg- qhov kub thiab txias: ± 20 degree
- Siab -kub tempering: ± 50 degree
Cov khoom siv kho tshuab uas tau teev tseg hauv lub rooj siv rau cov hlau nrog tus ntoo khaub lig-sectional loj Tsawg dua lossis sib npaug li 80 mm:
- For steel with sizes >80-100 hli:Elongation tom qab tawg, txo qhov chaw, thiab cuam tshuam lub zog nqus tau tso cai kom txo qis los ntawm 1% (tus nqi tiag), 5% (tus nqi kiag), thiab 5%, feem, piv rau cov nqi teev hauv cov lus.
- For sizes >100-150 hli:Kev txo qis yog 2% (tus nqi tiag), 10% (tus nqi kiag), thiab 10%, feem.
- For sizes >150-250 hli:Kev txo qis yog 3% (tus nqi tiag), 15% (tus nqi kiag), thiab 15%, feem.
Rau boron steel, normalizing yuav ua tau ua ntej quenching:
- Lub normalizing kub yuav tsum tsis txhob tshaj qhov quenching kub.
- Rau chromium-manganese-titanium steel, normalizing tuaj yeem hloov thawj qhov quenching.
Hauv kev sim tensile, yog tias tsis muaj qhov taw qhia tawm los ntawm qhov ntsuas qhov ntsuas thiab qhov taw tes tawm σₛ tsis tuaj yeem txiav txim siab:
-
Qhov seem seem ntxiv kev ntxhov siab σᵣ₀.₂ yuav tsum ntsuas hloov.
Lub hardness qhov tseem ceeb nyob rau hauv lub rooj yog Brinell hardness (HB10/3000) rau steel muab nyob rau hauv lub annealed los yog siab -kub tempered lub xeev.
Kev kho cua sov txheej txheem:
- quenching kub: 880 degree, roj txias
- Tempering kub: 540 degree, dej txias lossis roj txias
Piv txwv ntawm Machinable Fastener Khoom
| Cov khoom lag luam ntawm (ML) 30CrMnSiA Steel (Ua raws li GB3077/3078/3079/5953.1/5954; GJB1951/2150A/2151) |
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| Lub npe | Hom | Tus nqi ua haujlwm | Specification |
| Stud Bolt | GB 901-1988 | 10.9 | M24 |
| Knurled Thumb Screw | GB 900-1988 | 10.9 | M8~M12 |
| Hla Recessed Countersunk Head Screw | GB/T 819.2-1997 | 8.8, 10.9 (Tshaj tawm) | M1.6~M8 |
| GB/T 819.1-2000 | 8.8, 10.9 (Tshaj tawm) | M1.6~M6 | |
| Phillips Pan Taub Hau Ntsia Hlau | GB/T 818-2000 | 8.8, 10.9, 12.9 (Tshaj tawm) | M1.6~M8 |
| Hex Socket Lub Taub Hau Cap Screw | GB/T 70.1-2000 | 8.8,10.9,12.9 | M2~M20 |
| Hexagon ntsia liaj qhov rooj | GB/T 5783-2000 | 8.8,10.9 | M3~M20 |
| Hom 1 Hex Nut | GB/T 6170-2000 | 6, 8, 10, 30–36 HRC | M2~M36 |
| IB 41-1986 | 5 | M8~M18 | |
| Hom 1 Hex txiv ntseej, xov zoo | GB/T 6171-2000 | 8,10,12 | M6~M24 |
Cov ntaub ntawv zoo sib xws
| Tuam Tshoj | Russia | |
| GB | ISC | GOST |
| 20CrMnSi 30 CrMnSi 35CrMnSiA |
A24202 A24302 A24303 |
20ХГС 30ХГС 35ХГСА |
Cim npe nrov: 30CrMnSiA 30KHGSА 30ХГСА Txias Heading Steel Hlau GB /T 3077-1999 A24303 Tuam Tshoj, chaw tsim tshuaj paus, customized, ua nyob rau hauv Suav teb
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