Q355C pā kila

Q355 Hōʻike kila
ʻO Q355 kahi ʻano kila. He ʻano haʻahaʻa haʻahaʻa haʻahaʻa kiʻekiʻe ikaika structural kila, hoʻohana nui ʻia i nā Bridges, nā kaʻa, nā moku, ke kūkulu ʻana, nā moku kaomi, nā lako kūikawā, a me nā mea ʻē aʻe, kahi o "Q" ʻo ia hoʻi ka ikaika hua, ʻo 355 ke ʻano o ka ikaika o kēia kila he 355MPa , a e emi ana ka waiwai o ka hua me ka hoonui o ka manoanoa o ka mea.

Huina kemika:
C: 0.24, Si: 0.55, Mn: 1.60, P: S: 0.035, 0.035, Cr: 0.30, Ni: 0.30, Cu: 0.40

C	ʻO Si	ʻO Mn	P	S	Cr	Ni	Cu
0.24	0.55	1.60	0.035	0.035	0.30	0.30	0.40

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.