Q235A ndiro yesimbi

Boiler simbi ndiro inonyanya kushandiswa mukugadzira mabhoilers akasiyana-siyana uye zvakakosha zvinhu. Sezvo iyo boiler simbi ndiro inoshanda pane yepakati tembiricha (pazasi 350 ° C) uye yakanyanya kudzvanywa, mukuwedzera kune yakanyanya kudzvanywa, zvakare iri pasi pekukanganisa, kuneta mutoro uye mhute yemvura corrosion. Inodiwa kuvimbisa rimwe simba, uye ine yakanaka welding uye inotonhora yekukotama kuita. Magiredhi akajairika: Q245R, A5155 giredhi 55, A5156 giredhi 60, Q235A carbon steel plate, A5166 giredhi 65, A51670 giredhi.

Kurebesa kwesimbi yakaderera-alloy yakakwirira-simba i15% -23%, uye kukanganisa kunyura simba patembiricha yekamuri yakakura kupfuura 34J. Q235A kabhoni simbi ndiro, yakaderera alloy yakakwirira simba simbi ine yakanaka plasticity uye kukanganisa kuramba, izvo zvinogona kudzivirira brittle kutyoka panguva yekukanganisa uye kuita kutonhora kukotama uye kupinza kuve nyore. Mukuwedzera, brittle transition tembiricha ye-low-alloy high-simba simbi yakaderera, uye kubatwa kwekushanda kukosha kweE-grade simbi pa -40 ° C haisi pasi pe27J. Izvi zvakakosha zvikuru kune zvikamu zveinjiniya uye nzira dzekufambisa dzakadai semotokari, ngarava, mapuratifomu emafuta ekumahombekombe, midziyo, mabhiriji, nezvimwe.

Huru makemikari zvinhu kuumbwa kweQ235A
C	Si	Mn	P	S
0.22	0.35	1.40	0.045	0.050

Ukobvu (mm)
Q235A	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100 ≤ 150	> 150
Goho simba (≥Mpa)	235	225	215	215	195	185
Kusimba simba (Mpa)	370-500