Qhathanisa ne-15CrMo ne-1Cr5Mo
| 15CrMo | 1Cr5Mo | |||
| Uhlobo: | Insimbi ye-Structural Alloy | I-High Temperature Hydrogen Resistant Steel | ||
| Ingxenye Yekhemikhali: | C | 0.12---0.180 | C | ≤0.15 |
| Si | 0.17--0.37 | Si | ≤0.5 | |
| Mn | 0.4--0.7 | Mn | ≤0.6 | |
| Cr | 0.8---1.10 | Cr | 4.0--6.0 | |
| Mo | 0.4--0.550 | Mo | 0.4--0.6 | |
| I-S&P | ≤0.035 | Ni | ≤0.6 | |
| S | ≤0.03 | |||
| Impahla yemishini: | Amandla Okuqina (Mpa): | 440 ~ 640 | Amandla Okuqina (Mpa): | 390 |
| Yield Point (Mpa) | 235 | Yield Point (Mpa) | 185 | |
| Ubude (%) | 21 | Ubude (%) | 22 | |
| izinga lokushisa lokushisa: | 690℃ | 750℃ | ||
| Izinga Lokushisa Elivumelekile: | 15CrMo＜1Cr5Mo | |||
| Ingcindezi Evumelekile: | 15CrMo＞1Cr5Mo | |||
| Isakhiwo esincane: | I-Pearlite (ukuqina okuhle, ubulukhuni obuphakathi) | I-Martensite (iqinile futhi iqinile) | ||
| Okujwayelekile: | I-GB/T11251 | SA387 | ||
| Isici: | Inamandla aphezulu okushisa (δb≥440MPa) kanye nokumelana ne-oxidation ezingeni lokushisa eliphezulu, futhi inokumelana okuthile ne-hydrogen corrosion. I-coefficient yokwanda okushisayo incane, ukuqhutshwa kokushisa kuphezulu, ukusebenza kwenqubo kuhle, izinga lokushisa liyi-450-620 degrees Celsius, ukuthambekela kokuqina kwensimbi kusobala, futhi ukushisela akubi. Isetshenziswa kabanzi ekwenzeni ama-steam turbines nama-boilers, futhi isetshenziswa kakhulu kumashubhu okushintshanisa ukushisa kanye nemikhumbi yokushisa ephezulu kanye nengcindezi ephezulu. | Inokumelana ne-oxidation okuhle cishe ku-650 degrees Celsius, amandla amahle okushisa angaphansi kuka-600, ukumuncwa okuhle kokushaqeka kanye nokuhamba kahle kwe-thermal, futhi isetshenziswa kakhulu kuma-turbines ashisayo. Kodwa-ke, lolu hlobo lwensimbi lunomkhuba omkhulu wokuqina futhi lunomsebenzi ompofu wokushisela. Inezici ezinhle zomshini wokushisa okuphezulu, ukuzinza kwe-microstructure, ukumelana nokugqwala, nokuqina okuhle. Isetshenziswa kakhulu ku-petrochemical, ukuguqulwa kwamalahle, amandla enuzi, i-steam turbine block, ubhayela wamandla ashisayo nezinye izimo zokusebenza ezinokhahlo, imvelo yemidiya egqwalayo. | ||
| Isicelo: | Uphethiloli, amakhemikhali kaphethiloli, amabhoyela anengcindezi ephezulu, namanye amapayipi anezinjongo ezikhethekile ahlanganisa amapayipi angenamthungo ashisayo, amapayipi ensimbi angenamthungo we-geological, namapayipi angenamthungo ka-petroleum. Amapayipi nama-forging angasetshenziswa emikhunjini yokucindezela. Amapayipi e-steam namaheda anezinga lokushisa lodonga ≤510 ℃; Ishubhu yendawo yokushisa enezinga lokushisa lodonga ≤540 ℃. | Ukushisa okuphezulu kwesibabule ukugqwala, izinga lokushisa eliphezulu i-hydrogen ne-hydrogen sulfide corrosion, ukugqwala kwe-organic acid. I-Reheater tube enezinga lokushisa elingama-630 ℃ -650 ℃. Amapayipi nama-forging angasetshenziswa emikhunjini yokucindezela. Ukushisa okuphezulu kwesibabule ukugqwala, izinga lokushisa eliphezulu i-hydrogen ne-hydrogen sulfide corrosion, ukugqwala kwe-organic acid. I-Reheater tube enezinga lokushisa elingama-630 ℃ -650 ℃. | ||
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