Materyèl la 1.7225|42CRMO4 se yon asye jeni alye, ki gen yon fòs segondè ak severite.
42CRMO4/DIN 1.7225 Alloy Steel Konpayi fabrikasyon ak Swèd, apwovizyone ak baton wonn, kare/ba plat, woulèt, rasin, blòk ak fòje moso.
42CRMO4/DIN 1.7225 asye se yon klas souvan itilize gen CHROMIUM - eleman MOLYBDENUM nan Ewopeyen estanda EN10083 ak EN10250. Sa a asye gen bon fòs ak severite, ak bon ki ba - tanperati enpak severite ki yo sitou itilize apre janm pase ak apeze tretman chalè. DIN 1.7225 / 42CRMO4 se lajman ki itilize nan gwosè gwo ak pati enpòtan, tankou aks, Kovèti pou, konekte baton, silenn motè, sezon prentan, lwil oliv fè egzèsis jwenti tiyo ak piyon.
1.1.7225 42 CRMO 4 + qt AISI 4137 AISI 4140 analiz chimik
| Egalize | C | Si | Mn | P | S | Cr | Mwa |
| 42CRMO4/1.7225 | 0.38-0.45 | Mwens pase oswa egal a 0.4 | 0.6-0.9 | Mwens pase oswa egal a 0.025 | Mwens pase oswa egal a 0.035 | 0.9-1.2 | 0.15-0.3 |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.0 | Mwens pase oswa egal a 0.035 | Mwens pase oswa egal a 0.035 | 0.8-1.1 | 0.15-0.25 |
2.Related espesifikasyon
Aisi:4140/4137
ASTM:ASTM A331
JIS: SCM440
BS: EN19/708M40
GB: 42crmo
Afnor:42cd4
42crmo4 asye nòmalite detay
1.Normalize tanperati: 850-880 degre
2.Three etap pou ogmante tanperati a.
3. Pwofesè kenbe tan depann sou dimansyon an.
4.Air refwadisman.
42crmo4-mekanik pwopriyete ak nòmalize
| Fòs rupture | Sede fòs | Elongasyon | Rediksyon nan zòn | Enpak charpy - v | Rez nan |
| Pi gran pase oswa egal a 1020mpa | Pi gran pase oswa egal a 655mpa | Pi gran pase oswa egal a 17.7% | Pi gran pase oswa egal a 47% | Pi gran pase oswa egal a 23J | 302hbw |
42crmo4 rkwir dyagram
42crmo4 asye rkwir detay
1.Anneal tanperati: 680-720 degre
2.enough tan pou tanperati kenbe
3.Cooling nan gwo fou a.
4.Max dite: 229hb
Pwopriyete 42crmo4-mekanik ak rkwir
| Fòs rupture | Sede fòs | Elongasyon | Rediksyon nan zòn | Enpak charpy - v | Rez nan |
| Pi gran pase oswa egal a 655mpa | Pi gran pase oswa egal a 415MPA | Pi gran pase oswa egal a 25.7% | Pi gran pase oswa egal a 57% | Pi gran pase oswa egal a 55j | 197HBW |
42crmo4 dyagram quenching
Detay pou asouvisman
1. Tanperati malè: 820-880 degre
2.Three etap nan tanperati ogmante pou respire chofaj.
3.hold tan apwopriye pou asye a yo dwe byen chofe.
4.il oswa dlo pasè.
5.tempering imedyatman apre janm pase.
42crmo4 Dyagram tanperaman
Detay tanperaman
1.Temper tanperati: 540-680 degre
2.Air refwadisman.
42crmo4-mekanik pwopriyete ak asouvisman ak tanperaman
| Gwosè mm | Rupture, MPa | Sede, MPa | Elongasyon,% | Rediksyon,% | Charpy enpak, J | Dite, HB | Egzanp kote |
| Φ230 | 804 | 604 | 23.5 | 57 | +20 degre, 90 | 270 | 1/3 reyon |
| Φ310 | 879 | 677 | 19.5 | 57 | +20 degre, 62 | 290 | 1/3 reyon |
| Φ450 | 803 | 566 | 20.5 | 48 | +20 degre, 54 | 258 | 1/3 reyon |
| Φ540 | 718 | 533 | 21 | 54 | +20 degre, 56 | 260 | 1/3 reyon |
| Φ700 | 760 | 548 | 19 | 55 | -20 degre, 28 | 255 | 1/3 reyon |
Gwosè ekipman pou & kondisyon
| Fòm ekipman pou | Gwosè (mm) |
| Ba wonn | Φ16-Φ1,000 |
| Kare kare | Panse: Max 800 |
| Plat ba/blcoks | Epesè: 120-800 Lajè: 120-1,500 |
Tretman chalè: Normalize / rkwit / Q & T
Fini sifas: Nwa / ki graj vire / kale
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