Q355 steel bụ igwe arụrụ arụ ọrụ dị elu nke China dị ala, nke nọchiri Q345, njupụta ihe bụ 7.85 g/cm3. Dịka GB/T 1591-2018 siri kwuo, Q355 nwere ọkwa dị mma atọ: Q355B, Q355C na Q355D. "Q" bụ mkpụrụedemede mbụ nke Pinyin Chinese: "qu fu dian", nke pụtara Ike Mpụta, "355" bụ uru kacha nta nke ike mkpụrụ 355 MPa maka ọkpụrụkpụ ígwè ≤16mm, na ike ike bụ 470-630 Mpa.
Akwụkwọ data na nkọwapụta
Tebụl ndị dị n'okpuru na-egosi mpempe akwụkwọ ihe onwunwe Q355 na nkọwapụta dị ka ihe mejupụtara kemịkalụ, yana ihe eji arụ ọrụ.
Ihe mejupụtara kemịkalụ ígwè Q355 (ọkụ akpọrepu)
| Ọkwa ígwè |
Ogo ogo |
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 |
- |
Atụmatụ na ngwa
Q355 ígwè nwere ezigbo ihe eji arụ ọrụ, ezigbo weldability, ihe nhazi ọkụ na oyi na nguzogide corrosion. Enwere ike iji rụọ ụgbọ mmiri, igwe ọkụ, ụgbọ mmiri nrụgide, tankị nchekwa mmanụ ala, àkwà mmiri, akụrụngwa ọdụ ọkụ, igwe na-ebuli ibu na akụkụ ndị ọzọ dị elu welded.
