ʻO ka pā kila Q275 keʻano o ke kila kila, ka ikaika kiʻekiʻe, ka plasticity maikaʻi a me kaʻokiʻana i ka hana, ka hana kuʻiʻana maikaʻi, hiki ke hoʻopau a hoʻoikaikaʻia nā'āpana liʻiliʻi, hoʻohana nuiʻia no ka hanaʻana i nā'āpana me nā koi kiʻekiʻe, e like me nā gears a me nā shafts. , sprockets, kī, bolts, nuts, section steels no nā mīkini mahiʻai, nā kaulahao conveyor a me nā loulou.
Q275 pā kila kila mea like: pili i ka Japanese JIS brand: SS490
International Organization for Standardization:
E275A
E pili ana i ka brand kahiko: A5
ʻO ka hoʻohui ʻana i kemika (haʻina nui) o ka pā kila Q275 (%)
C: ≤0.24
Mn: ≤1.5
Si: ≤0.35
S: ≤0.050 (Papa A)
P: ≤0.045
Hoʻohana nui ʻia ka pā kila Q275 no ka hana ʻana i nā ʻāpana mīkini koʻikoʻi i ke kūkulu ʻana a me ka ʻenehana alahaka, a hiki ke hoʻololi i ke kila kalapona kiʻekiʻe. Ua like ka Q215B me ka helu 10-15. Ua like ka Q235B me ke kila 15-20, ua like ka Q255B me ke kila 25-30, a ua like ka Q275B. 35-40 kila.
| ʻO nā mea kemika nui ka haku o Q275D |
| C |
ʻO Si |
ʻO Mn |
P |
S |
| 0.20 |
0.35 |
1.50 |
0.035 |
0.035 |
