ozi izugbe
EN 10025 S355 ígwè bụ ọkwa ígwè ọkọlọtọ nke Europe, dịka EN 10025-2: 2004 si kwuo, a na-ekewa ihe S355 n'ime akara ogo anọ bụ isi:
● S355JR (1.0045)
● S355J0 (1.0553)
● S355J2 (1.0577)
● S355K2 (1.0596)
Njirimara nke ígwè S355 dị mma karịa ígwè S235 na S275 n'ike mmepụta na ike nrụgide.
Nkọwa nke S355 nke ígwè (Nhazi)
Mkpụrụ akwụkwọ na ọnụọgụ ndị a na-akọwa ihe S355 nke ígwè pụtara.
"S" bụ mkpụmkpụ maka "ígwè e ji arụ ọrụ".
"355" na-ezo aka na uru ike mmepụta kacha nta maka ọkpụrụkpụ ígwè dị larịị na ogologo ≤ 16mm.
"JR" pụtara na uru ike mmetụta dị ihe dịka 27 J na okpomọkụ ụlọ (20℃).
"J0" nwere ike iguzogide ike mmetụta ma ọ dịkarịa ala 27 J na 0℃.
"J2" metụtara uru ike mmetụta kacha nta bụ 27 J na -20℃.
"K2" na-ezo aka na uru ike mmetụta kacha nta bụ 40 J na -20℃.
Ihe mejupụtara kemịkalụ na ihe onwunwe igwe
Ngwakọta Kemịkalụ
| Ihe mejupụtara kemịkalụ S355% (≤) | ||||||||||
| Ọkọlọtọ | Ígwè | Ọkwa | C | Si | Mn | P | S | Cu | N | Ụzọ nke deoxidation |
| EN 10025-2 | S355 | S355JR | 0.24 | 0.55 | 1.60 | 0.035 | 0.035 | 0.55 | 0.012 | A naghị ekwe ka ígwè rịmmed |
| S355J0 (S355JO) | 0.20 | 0.55 | 1.60 | 0.030 | 0.030 | 0.55 | 0.012 | |||
| S355J2 | 0.20 | 0.55 | 1.60 | 0.025 | 0.025 | 0.55 | – | Egburu kpamkpam | ||
| S355K2 | 0.20 | 0.55 | 1.60 | 0.025 | 0.025 | 0.55 | – | Egburu kpamkpam | ||
Njirimara Mekaniki
Ike Mwepụta
| Ike Mmepụta S355 (≥ N/mm2); Dia. (d) mm | |||||||||
| Ígwè | Ọkwa ígwè (Nọmba ígwè) | d≤16 | 16< d ≤40 | 40< d ≤63 | 63< d ≤80 | 80< d ≤100 | 100< d ≤150 | 150< d ≤200 | 200< d ≤250 |
| S355 | S355JR (1.0045) | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 |
| S355J0 (1.0553) | |||||||||
| S355J2 (1.0577) | |||||||||
| S355K2 (1.0596) | |||||||||
Ike ọdụdọ
| Ike nrụgide S355 (≥ N/mm2) | ||||
| Ígwè | Ọkwa ígwè | d<3 | 3 ≤ d ≤ 100 | 100 < d ≤ 250 |
| S355 | S355JR | 510-680 | 470-630 | 450-600 |
| S355J0 (S355JO) | ||||
| S355J2 | ||||
| S355K2 | ||||
Ogologo
| Ogologo (≥%); Ọkpụrụkpụ (d) mm | ||||||
| Ígwè | Ọkwa ígwè | 3≤d≤40 | 40< d ≤63 | 63< d ≤100 | 100< d ≤ 150 | 150< d ≤ 250 |
| S355 | S355JR | 22 | 21 | 20 | 18 | 17 |
| S355J0 (S355JO) | ||||||
| S355J2 | ||||||
| S355K2 | 20 | 19 | 18 | 18 | 17 | |
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