Cov khoom lag luam
S690Q yog ib qib siab quenched thiab tempered steel qhia ua raws li steel specification en 10025 hais txog tsawg kawg yog 690MPA.
Tshuaj lom neeg muaj pes tsawg leeg ntawm S690Q Hlau raws li EN10025-6,%
| С | Si | Mn | P | S | N | B | Cr | CU | Mo | Nb | Ni | Ti | V | Tsaus yr |
| 0,20 | 0,80 | 1,70 | 0,025 | 0,015 | 0,015 | 0,005 | 1,50 | 0,50 | 0,70 | 0,06 | 2,0 | 0,05 | 0,12 | 0,15 |
Cov Cuab Yeej Siv Cov Neeg Kho Tshuab ntawm S690Q Hlau
| Nominal gauge, hli | Yam tsawg kawg nkaus paib zog zog, Rhite (mpa) | Qhov kawg tensile lub zog, RM (Mpa) | Yam tsawg kawg nkaus elongation piv σ,% | Brinell hardness naj npawb, HB (MPA) |
| >3 tsawg dua lossis sib npaug nrog 50 | 690 | 770-940 | 14 | 228-278 |
| >50 tsawg dua los yog sib npaug rau 100 | 650 | 760-930 | 14 | 225-276 |
| >100 tsawg dua los yog sib npaug rau 150 | 630 | 710-900 | 14 | 210-266 |
Hardness ntawm S690Q siab - lub zog steel phaj
S690Q yog qhov quenched thiab tempered (Q) siab {{1}- Hights tus qauv hlau, nrog hardness ua tib zoo tswj tau kom ntseeg tau tias kev ua haujlwm zoo heev. Raws li European txheemEN 10025-6, cov yeej nyuaj muaj nuj nqis ntawm s690Q steel phaj muaj raws li hauv qab no:
| Ntiag tug | Tus Nqi Muaj Ntau |
|---|---|
| Brinell Hardness (HB) | 250-300 HB |
| Rockwell Hardness (HRC) | 24-28 HRC |
| Vickers Hardness (HV10) | 260-320 hv |
Cov kev ua kom tawv no kom ntseeg tau tias S690Q tswj tau zoo hnav coj tau zoo thiab deformation tiv taus nyob rau hauv kev ntxhov siab ntau thiab kev thauj khoom heev.
Ua ke nrog cov txheej txheem quenching thiab tempering thiab tempering, steel phaj ua kom muaj zog txhim khu kev qha thiab ruaj khov hauv cov qauv tseem ceeb xws liTxuas hniav, tshuab hnyav, nqa cov khoom siv, thiab siab -} Rose tsev.
