Nga korero whanui
Ko te maitai EN 10025 S355 he karaehe maitai o te hanganga a te Pakeha, e ai ki te EN 10025-2: 2004, ka wehea te rauemi S355 ki nga tohu kounga matua e 4:
● S355JR (1.0045)
● S355J0 (1.0553)
● S355J2 (1.0577)
● S355K2 (1.0596)
Ko nga ahuatanga o te hanganga maitai S355 he pai ake i te maitai S235 me te S275 i roto i te kaha tuku me te kaha kaha.
Koeke maitai S355 Tikanga (Whakaahua)
Ko nga reta me nga nama e whai ake nei e whakamarama ana i te tikanga o te karaehe rino S355.
Ko te "S" he poto mo te "hanganga maitai".
Ko te "355" e pa ana ki te uara kaha hua iti mo te papatahi me te roa te matotoru maitai ≤ 16mm.
Ko te tikanga o te "JR" ko te uara kaha o te paanga ko te 27 J i te pāmahana rūma (20 ℃).
Ka taea e "J0" te tu atu i te kaha paanga i te iti rawa 27 J i te 0 ℃.
"J2" e pa ana ki te iti rawa o te uara kaha o te kaha ko te 27 J i te -20 ℃.
"K2" e pā ana ki te uara pūngao pānga iti ko 40 J i -20 ℃.
Te hanganga matū me te taonga miihini
Hangahanga matū
S355 Hanganga Matū % (≤) | ||||||||||
Paerewa | Te maitai | Kōeke | C | Si | Mn | P | S | Cu | N | Tikanga o te whakahekenga |
EN 10025-2 | S355 | S355JR | 0.24 | 0.55 | 1.60 | 0.035 | 0.035 | 0.55 | 0.012 | Kaore e whakaaetia te rino rime |
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 | – | I tino patua | ||
S355K2 | 0.20 | 0.55 | 1.60 | 0.025 | 0.025 | 0.55 | – | I tino patua |
Nga Taonga Miihini
Te Kaha Tuku
S355 Te Kaha Tuku (≥ N/mm2); Dia. (d) mm | |||||||||
Te maitai | Koeke maitai (Tau maitai) | 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) |
Te Kaha Toka
S355 Te Kaha Tana (≥ N/mm2) | ||||
Te maitai | Koeke maitai | d<3 | 3 ≤ d ≤ 100 | 100 < d ≤ 250 |
S355 | S355JR | 510-680 | 470-630 | 450-600 |
S355J0 (S355JO) | ||||
S355J2 | ||||
S355K2 |
Te whakaroa
Whakaroa (≥%); Te Matotoru (d) mm | ||||||
Te maitai | Koeke maitai | 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 |