ʻO ke kila Q355 he kila haʻahaʻa haʻahaʻa Kina, ka mea i hoʻololi iā Q345, ʻo 7.85 g /cm3 ka nui o nā mea. Wahi a GB/T 1591 -2018, loaʻa iā Q355 3 mau pae maikaʻi: Q355B, Q355C a me Q355D. "Q" ka palapala mua o ka Chinese Pinyin: "qu fu dian", 'o ia hoʻi ka hua ikaika, "355" ka palena iki o ka hua ikaika 355 MPa no ke kila mānoanoa ≤16mm, a me ka tensile ikaika 470-630 Mpa.
Pepa ʻikepili a me nā kikoʻī
Hōʻike nā papa ma lalo i ka ʻikepili waiwai Q355 a me nā kikoʻī e like me ka haku mele, a me nā waiwai mechanical.
Q355 Steel Chemical Composition (Hot rolled)
| Papa kila |
Papa maikaʻi |
C % (≤) |
Si % (≤) |
Mn (≤) |
P (≤) |
S (≤) |
Cr (≤) |
Ni (≤) |
Cu (≤) |
N (≤) |
| Q355 |
Q355B |
0.24 |
0.55 |
1.6 |
0.035 |
0.035 |
0.30 |
0.30 |
0.40 |
0.012 |
| Q355C |
0.20 |
0.030 |
0.030 |
0.012 |
| Q355D |
0.20 |
0.025 |
0.025 |
– |
Nā hiʻohiʻona a me nā noi
Loaʻa i ke kila Q355 nā waiwai mechanical maikaʻi, ka weldability maikaʻi, nā waiwai hoʻoili wela a me ke anuanu a me ka pale ʻana i ka corrosion. Hiki ke hoʻohana ʻia no ka hana ʻana i nā moku, nā paila, nā moku kaomi, nā pahu mālama ʻaila, nā alahaka, nā lako mana, nā mīkini lawe kaʻa a me nā ʻāpana ʻāpana kiʻekiʻe.
