Ko te kaha tuku te tepe hua o GB CM690 GB/T 18669 i te wa e tuku ana, ara, ko te ahotea e atete ana i te huringa moroiti-kirihou. Ko te kaha o waho ka nui ake i te kaha tuku ka kore e taea e nga waahanga GB CM690 GB/T 18669 e kore e taea te whakaora. He iti ake i tenei, ko nga waahanga GB CM690 GB/T 18669 ka hoki ki te ahua taketake.
Ko te kaha o te kaha te uara nui o te whakawhiti mai i te rerekeetanga kirihou rite ki te whakakino kirihou i te rohe. Koia hoki te kaha ki te kawe kawenga o GB CM690 GB/T 18669 i raro i te mānukanuka. Ko te kaha o te tensile ko te parenga e tohu ana i te nui o te rerekee o te ahua kirihou o te GB CM690 GB/T 18669. Ko te rerekeetanga o nga tauira tensile he rite i mua i te mau i te ahotea teitei, engari kei tua atu i tera, ko te GB CM690 GB/T 18669 ka timata ki te kaki, ara ko te deformation concentrate.
Tukunga Rp0.2 (MPa) |
Tirohanga Rm (MPa) |
Pānga KV/Ku (J) |
Te whakaroa A (%) |
Te whakaheke i te waahanga whakawhiti mo te pakaru Z (%) |
Tikanga-Heat-Treated | Brinell pakeke (HBW) |
---|---|---|---|---|---|---|
812 (≥) | 174 (≥) | 22 | 32 | 33 | Rongoā me te Aging, Annealing, Ausaging, Q + T, etc | 344 |
Ko nga ahuatanga a-tinana o GB CM690 GB/T 18669 te nuinga o te uhi i te modulus o te elasticity, te whakarea o te roha waiariki, te kawe waiariki, te kaha waiariki motuhake, te uara parenga hiko, te kiato, te ōwehenga o te paihana, aha atu.
Te pāmahana (°C) |
Modulus o te elasticity (GPa) |
Ko te tau toharite o te roha waiariki 10-6/(°C) i waenga i te 20(°C) me | Te kawe werawera (W/m·°C) |
Te kaha waiariki motuhake (J/kg·°C) |
Te parenga hiko motuhake (Ω mm²/m) |
Kiato (kg/dm³) |
Ko te whakarea o Poisson, ν |
---|---|---|---|---|---|---|---|
31 | - | - | 0.41 | - | |||
834 | 386 | - | 24.3 | 231 | - | ||
671 | - | 43 | 14.2 | 244 | 213 |