Gosiputa n'etiti 420 420j1 na 420j2 nly nelics arụ ọrụ:
Isi ihe dị n'etiti nchara nchara 420j1 na 420j2
420J1 nwere otutu iyi na-eguzogide na nguzogide nguzogide, oke isi ike, na onu ahia ya bu obere bọl ucha. Ọ dị mma maka ebe ọrụ na-achọ igwe anaghị agba nchara.
420j2 igwe eji eme ihe nchara bu nke igwe eji eme ihe emeputara dika iwu Astm Astm; Japanese ọkọlọtọ sus420j2, New National Standard 30cr13, Old Standard Standard 3cr13, Usoro dijitalụ S42030, European Standard 1.4028.
420j1 igwe anaghị agba nchara: Mgbe ha gbachara, ihe isi ike dị elu, na nguzogide corrosion dị mma (magnetion). Mgbe ị gachaa, 420j2 igwe anaghị agba nchara dị ike karịa 420j1 ígwè (magnetic).
N'ozuzu, okpomọkụ nke 420j1 bụ 980 ~ 1050 ℃. Ihe isi ike nke 980 ℃ ℃ ℃ ℃ nke oma di ala karie 1050 ℃ ℃ ℃ kpo oku. Ihe siri ike mgbe 980 ℃ mmanụ mmanụ bụ hrc45-50, na ihe siri ike mgbe 1050 ℃ mmanụ ọkụ bụ 2hrc dị elu. Agbanyeghị, microsrece nwetara mgbe ọ gachara 1050 ℃ bụ kuchiri ya. A na-atụ aro ka iji 1000 ℃ kpo oku ma kwụsịchaa iji nweta ihe ọma na isi ike.
Mpempe akwụkwọ igwe anaghị agba nchara 420 / 420j1 / 420j2 akwa & detuo akara akara:
| Standadi | Jis | Werkstoff Nr. | BS | Afnor | Asa | Esizighi uru | Asiani |
| SS 420 | Na 420 | 1.4021 | 420s29 | - | 2303 | S42000 | 420 |
| SS 420j1 | Ya 420j1 | 1.4021 | 420s29 | Z20c13 | 2303 | S42010 | 420l |
| Ss 420j2 | Sus 420j2 | 1.4028 | 420S37 | Z20c13 | 2304 | S42010 | 420m |
Ss420 / 420j1Ibé akwụkwọ / 420j2, na-etinye ihe mejupụtara kemịkalụ (saky nchara):
| Greedi | C | Mn | Si | P | S | Cr | Ni | Mo |
| Na 420 | 0.15 max | 1.0 Max | 1.0 Max | 0.040 max | 0.030 max | 12.0-14.0 | - | - |
| Ya 420j1 | 0.16-0.25 | 1.0 Max | 1.0 Max | 0.040 max | 0.030 max | 12.0-14.0 | - | - |
| Sus 420j2 | 0.26-0.40 | 1.0 Max | 1.0 Max | 0.040 max | 0.030 max | 12.0-14.0 | - | - |
SS 420 420j1 420j2 akwa, pletes sistemu akụrụngwa (saky nchara):
| Greedi | Tensile ikex | Mkpụrụ ikike (0.2% na-agagharị) max | Elongation (na 2 n'ime.) |
| 420 | MPA - 650 | MPA - 450 | 10% |
| 420J1 | MPA - 640 | MPA - 440 | 20% |
| 420J2 | MPA - 740 | MPA - 540 | 12% |
Ihe siri ike nke 420 wael steel mgbe okpomoku di nkpa bu hrc52 ~ 55, arụmọrụ nke akụkụ dị iche iche adịghị oke njọ. N'ihi na ọ dị mfe ịkpụ na Polish, ọ dabara adaba maka mmepụta nke mma. A na-akpọ nchara nchara 420 na-akpọkwa "na-egbute ọkwa" Martensitic ígwè. 420 Usoro usoro nwere ezigbo ngbari nguzogide n'ihi ọdịnaya carbon dị ala (ọdịnaya carbon: 0.16 ~, ya mere, ọ bụ ezigbo nchara maka mmepụta nke ngwaọrụ ndọpụta.
Oge post: Jul-07-2020