Q355 karfe ƙananan alloy ɗin ƙaƙƙarfan tsarin ƙarfe ne na kasar Sin, wanda ya maye gurbin Q345, ƙimar kayan shine 7.85 g/cm3. Dangane da GB/T 1591 -2018, Q355 yana da matakan inganci guda uku: Q355B, Q355C da Q355D. "Q" shine harafin farko na Pinyin na Sinanci: "qu fu dian", wanda ke nufin Ƙarfin Haɓaka, "355" shine mafi ƙarancin ƙimar ƙarfin amfanin gona 355 MPa don kauri na ƙarfe ≤16mm, kuma ƙarfin juzu'i shine 470-630 Mpa.
Takardar bayanai da Ƙayyadaddun bayanai
Teburan da ke ƙasa suna nuna takaddun bayanai na kayan Q355 da ƙayyadaddun bayanai kamar abubuwan sinadaran, da kaddarorin inji.
Haɗin Sinadarin Karfe Q355 (mai zafi mai zafi)
Karfe daraja |
Darajojin inganci |
C% (≤) |
Si% (≤) |
Mn (≤) |
P (≤) |
S (≤) |
Cr (≤) |
Ni (≤) |
Ku (≤) |
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 |
- |
Fasaloli da Aikace-aikace
Q355 karfe yana da kyawawan kaddarorin inji, mai kyau walda, zafi da sanyi kaddarorin sarrafawa da juriya na lalata. Ana iya amfani da shi don kera jiragen ruwa, tukunyar jirgi, tasoshin matsa lamba, tankunan ajiyar man fetur, gadoji, kayan aikin tashar wutar lantarki, injinan ɗagawa da sauran sassa na gine-gine masu welded mafi girma.