Ịmata ọdịiche dị n'etiti 420 420J1 na 420J2 igwe anaghị agba nchara arụmọrụ àgwà:
Isi ihe dị iche n'etiti igwe anaghị agba nchara 420J1 na 420J2
420J1 nwere ụfọdụ ogo nke eyi nguzogide na nguzogide corrosion, ike siri ike, na ọnụahịa ya bụ ala nke bọọlụ igwe anaghị agba nchara. Ọ dabara maka ebe ọrụ na-achọ igwe anaghị agba nchara nkịtị.
420J2 igwe anaghị agba nchara eriri bụ akara igwe anaghị agba nchara emepụtara dịka ụkpụrụ American ASTM si dị; Ọkọlọtọ Japanese SUS420J2, ọkọlọtọ mba ọhụrụ 30Cr13, ọkọlọtọ mba ochie 3Cr13, koodu dijitalụ S42030, ọkọlọtọ European 1.4028.
420J1 igwe anaghị agba nchara: Mgbe emechara, ike dị elu, na nguzogide corrosion dị mma (magnetic). Mgbe quenching, 420J2 igwe anaghị agba nchara siri ike karịa 420J1 ígwè (magnetic).
N'ozuzu, na quenching okpomọkụ nke 420J1 bụ 980 ~ 1050 ℃. Isi ike nke 980 ℃ kpo oku mmanụ quenching bụ budata ala karịa 1050 ℃ kpo oku mmanụ quenching. The ike mgbe 980 ℃ mmanụ quenching bụ HRC45-50, na ike mgbe 1050 ℃ mmanụ quenching bụ 2HRC elu. Otú ọ dị, microstructure nwetara mgbe quenching na 1050 ℃ bụ keadighi rarii na kenkuwa. Ọ na-atụ aro ka iji 1000 ℃ kpo oku na quenching na-mma Ọdịdị na ike siri ike.
Igwe anaghị agba nchara 420 / 420J1 / 420J2 Mpempe akwụkwọ & Plates Dakọtara akara ule:
| Ọkọlọtọ | JIS | Ọrụ NR. | BS | AFNOR | SIS | UNS | AISI |
| SS 420 | Sus 420 | 1.4021 | 420S29 | - | 2303 | S42000 | 420 |
| SS 420J1 | SUS 420J1 | 1.4021 | 420S29 | Z20C13 | 2303 | S42010 | 420L |
| SS 420J2 | SUS 420J2 | 1.4028 | 420S37 | Z20C13 | 2304 | S42010 | 420M |
SS420/420J1/ 420J2 Ibé akwụkwọ, Efere Chemical mejupụtara (saky ígwè):
| Ọkwa | C | Mn | Si | P | S | Cr | Ni | Mo |
| Sus 420 | 0.15 kacha | 1.0 kacha | 1.0 kacha | 0.040 kacha | 0.030 kacha | 12.0-14.0 | - | - |
| SUS 420J1 | 0.16-0.25 | 1.0 kacha | 1.0 kacha | 0.040 kacha | 0.030 kacha | 12.0-14.0 | - | - |
| SUS 420J2 | 0.26-0.40 | 1.0 kacha | 1.0 kacha | 0.040 kacha | 0.030 kacha | 12.0-14.0 | - | - |
SS 420 420J1 420J2 Ibé akwụkwọ, Efere Mechanical Njirimara(saky ígwè):
| Ọkwa | Ike Tensile Max | Ike Mpụta (0.2% akwụrụ ụgwọ) kacha | Mgbatị (na 2 in.) |
| 420 | MPa - 650 | MPa - 450 | 10% |
| 420J1 | MPa - 640 | MPa - 440 | 20% |
| 420J2 | MPa - 740 | MPa - 540 | 12% |
The ike nke 420 usoro ígwè mgbe okpomọkụ ọgwụgwọ bụ roughly HRC52 ~ 55, na arụmọrụ nke akụkụ dị iche iche dị ka mmebi na-eguzogide abụghị nnọọ pụtara ìhè. N'ihi na ọ dị mfe ịkpụ na polish, ọ dị mma maka mmepụta nke mma. 420 igwe anaghị agba nchara a na-akpọkwa "ịcha ọkwa" martensitic ígwè. 420 usoro ígwè nwere magburu onwe nchara na-eguzogide n'ihi na ya ala carbon ọdịnaya (carbon ọdịnaya: 0.16 ~ 0.25), n'ihi ya, ọ bụ ezigbo ígwè maka mmepụta nke mmiri mmiri ngwaọrụ.
Oge nzipu: Jul-07-2020