EN 50CrMo{1}}.7228 Alloy Steel Bar / Qws
50CrMo4 yog hlau ntsig txog 42CrMo4, 34CrMo4 thiab 25CrMo4. Cov qauv no, sib nrug los ntawm qhov ua tau zoo tib yam ntawm Chromium thiab Molybdenum, yog qhov txawv ntawm qhov nruab nrab qis dua cov ntsiab lus hauv cov tshuaj muaj pes tsawg leeg. 50CrMo4 yog ib qho ntawm cov qib kawg uas tau muab cais ua cov qauv hlau rau kev txhim kho thermal thiab nws tsuas yog qib steel zoo sib xws yog 50H - tsis muaj Molybdenum.
Cov khoom uas muaj ib tug tshwj xeeb muaj pes tsawg leeg yog mob siab rau rau lub tsheb thiab cov cav tov uas yuav tsum tau siab hardness thiab yuav muaj zog dabtsi yog khoov, twisting, puas thiab hnav loads. Lawv muaj cov txiaj ntsig siab dua li lwm cov HM steels.
APPLICATIONS
Lawv yog siv los ua cov khoom lag luam ib nrab rau kev tsim cov khoom xws li crankshafts, cogwheels, heavy-duty axles, gears, li qub, heavy-duty screws, thrust rollers, guides, articulated pob qij txha, thrust rings, bolts los yog bushes.
Rau qee qhov kev siv, cov hlau tuaj yeem ua rau lub caij nplooj ntoos hlav zoo. Yooj yim tsis tau pov thawj tshuaj muaj pes tsawg leeg tso cai rau kev yooj yim vuam ntawm qhov chaw thiab cov neeg kho tshuab txiav.
Cov qib sib npaug ntawm cov hlau 50CrMo4 (1.7228) Tsuas yog siv
| EU EN | Lub teb chaws Yelemees DIN, NWS | Askiv BS | Tuam Tshoj GB | Inter ISO |
| 50 CrMo4 | 50 CrMo4 | 708M40708M50 | 50 CrMo | 50 CrMo4 |
Chemical Requirements, Muaj pes tsawg leeg, feem pua
| C | Si | Mn | P | S | Cr | Mo |
| 0.46 - 0.54 | max 0.4 | 0.5 - 0.8 | max 0.025 | max 0.035 | 0.9 - 1.2 | 0.15 - 0.3 |
50CrMo4 - General Mechanical Properties
Txuj | Qib Hlau | Yield strength σs/MPa (>=) | Tensile zog (MPa) | Elongation feem pua (>=) | Reduction of area ψ/% (>=) | Impact absorbing energy Aku2/J (>=) | Hardness HB |
EN 10083-3 | 50 CrMo4 | 900 | 1100-1300 | 9-11 | 40 | 30 | 248 |
| Kev kho mob | Qhov xwm txheej | Lub voj voog kub | Txias / quenching |
|---|---|---|---|
| Kub forging | 850-1100 | Nyob rau hauv tseem huab cua | |
| normalizing | plus N | 840-880 | Nyob rau hauv tseem huab cua |
| Mos annealing | plus A | 700-730/2h | 15ºC / h rau 600ºC, ces tseem cua |
| Kev ntxhov siab relieve annealing | plus SRA | 525-620 | Nyob rau hauv tseem huab cua |
| Hardening | plus Q | 830-860 820-850 | Hauv roj Hauv dej |
| Tempering | plus T | 525-625/1h |
Cim npe nrov: en 50crmo4 1.7228 alloy steel bar, Tuam Tshoj, tuam ntxhab, lwm tus muag khoom, Hoobkas