Cov Ntawv Qhia Txog Kev Kho Mob ntawm Kev Kho Mob Cua sov thiab kev siv ntawm 4130 alloy steel
Sep 06, 2025
1. Pib
AISI 4130 yog qhov qis -} alloy chromium {}} molybdenum steel nrog lub zog zoo, weldability, weldability, thiab machinability.
Cov tshuaj lom neeg cov tshuaj tiv thaiv (wt.%):
| Lub ntsiab | C | Mn | Cr | Mo | Si | P / s (max) |
|---|---|---|---|---|---|---|
| Zoo siab | 0.28–0.33 | 0.40–0.60 | 0.80–1.10 | 0.15–0.25 | Tsawg dua los yog sib npaug rau 0.35 | Tsawg dua los yog sib npaug rau 0.035 |
2. Cov txheej txheem kho cua sov
| Kev ua | Cua sov temp (degree) | Cua txias txoj kev | Raug microstructure | Cawm hawm / nyhuv |
|---|---|---|---|---|
| Ib tug anerting | 850 ± 10 | Cua sov txias | Ferrite + PETLLITE | Txo kev tawv tawv, txhim kho tes luam ntawv |
| Li no | 870–900 | Cua txias | Cov hlaws zoo + ferrite | Txhim kho cov tawv thiab tsis zoo |
| Quenching | 840–880 | Roj Quench | Tus ntaus tswv | Nce lub zog thiab hardness |
| Npau taws | 540–675 | Cua txias | Tempered sorbite | Txhim kho txoj kev tawv tawv, txo cov brittleness |
| Kev ntxhov siab nyem | 540–650 | Cua sov txias | Ferrite + PETLLITE | Txo qis kev ntxhov siab, tiv thaiv kev tawg |
3. Cov Khoom Siv Kho Tshuab Sib Piv
| Yam tseem ceeb | Tensile lub zog (mpa) | Yield zog (mpa) | Elongation (%) | Cuam tshuam lub zog (j) | Kev nyuaj |
|---|---|---|---|---|---|
| Ib qho tseem ceeb | ≈ 560 | ≈ 460 | 25 | - | HB 170-207 |
| Zoo li cas | ≈ 750 | ≈ 600 | 22 | 25–30 | HB 200-220 |
| Quenched + tempered (590 degree) | ≈ 850 | ≈ 700 | 18 | Ntau dua los yog sib npaug rau 35 | HRC 28-32 |
| Quenched + tempered (540 degree) | ≈ 1000 | ≈ 850 | 14–16 | 25–30 | HRC 35-38 |
4. Kev thov
Ib tug tub rog: Tsaws cov iav Cheebtsam, cov qauv dav hlau
Roj & Roj: WELHHHEAD cov cuab yeej, li qub, siab cov hlab ntsha
Automotive & Sib Tw: chassis, tsav tsaj, zog
Neeg Kho Tshuab Engineering: Fasteners, Crankshafts, Cov Cuab Yeej
5. Xaus
4130 alloy steel yog ib qho tsawg tsawg -} alloy txheej txheem steel. Los ntawm kev thov cov txheej txheem kev kho cua sov tsim nyog, muaj kev sib npaug ntawm lub zog, kev ua tiav, thiab lub tshuab tuaj yeem siv nyob rau hauv Aerospace, roj & roj, kev lag luam siv tsheb.
