Hantida Makaanikada
Birta Q355 waa bir dhismeed oo xoog sare leh oo Shiineys ah, kaas oo beddelay Q345, cufnaanta maaddadu waa 7.85 g / cm3. Marka loo eego GB/T 1591 -2018, Q355 waxay leedahay 3 heerar tayo leh: Q355B, Q355C iyo Q355D. "Q" waa xarafka ugu horreeya ee Pinyin Shiinaha: "qu fu dian", taas oo macnaheedu yahay Xoogga Wax-soosaarka, "355" waa qiimaha ugu yar ee xoogga wax-soo-saarka 355 MPa dhumucda birta ≤16mm, iyo xoogga xajinta waa 470-630 Mpa.
Xaashida Xogta iyo Faahfaahinta
Jadwalka hoose wuxuu muujinayaa xaashida xogta walxaha Q355 iyo qeexitaannada sida ka kooban kiimikada, iyo sifooyinka farsamada.
Q355 Isku-dhafka Kiimikada Birta (kulul duuban)
Heerka Birta |
Heerka Tayada |
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 |
- |
Tilmaamaha iyo Codsiyada
Q355 birta waxay leedahay sifooyin farsamo oo wanaagsan, alxanka wanaagsan, sifada habaynta kulul iyo qabow iyo iska caabinta daxalka. Waxaa loo isticmaali karaa in lagu soo saaro maraakiibta, kuleyliyaha, weelasha cadaadiska, haamaha kaydinta shidaalka, buundooyinka, qalabka xarunta korontada, mishiinada qaadida iyo qaybaha kale ee culeyska sare ee qaabdhismeedka alxanka.