Q235C karfe farantin karfe

Q235B karfe farantin karfe ne wani irin low carbon karfe. Ma'auni na ƙasa GB/T 700-2006 "Carbon Structural Steel" yana da ma'anar ma'ana. Q235B yana ɗaya daga cikin samfuran ƙarfe na yau da kullun a China. Ba shi da tsada kuma ana iya amfani dashi a yawancin samfuran da basa buƙatar babban aiki.

Hanya:
(1) Ya ƙunshi lambar Q + + alama mai inganci + alamar deoxidation. An riga an sanya lambar ƙarfe ta lambar sa da "Q" don wakiltar ma'aunin yawan amfanin ƙasa na karfe, kuma lambobi masu zuwa suna wakiltar ƙimar ma'aunin amfanin gona a MPa. Misali, Q235 yana wakiltar karfen tsarin carbon tare da ma'aunin yawan amfanin ƙasa (σs) na 235 MPa.
(2) Idan ya cancanta, ana iya nuna alamar ƙimar inganci da hanyar deoxidation bayan lambar karfe. Alamar darajar darajar ita ce A, B, C, D. alamar hanyar deoxidation: F tana wakiltar karfe mai tafasa; b Yana wakiltar karfe mai kisa; Z yana wakiltar karfe da aka kashe; TZ na nufin Karfe na Musamman na Kill. Ƙarfe da aka kashe ƙila ba shi da alamar alama, wato, duka Z da TZ ana iya barin su ba tare da alama ba. Misali, Q235-AF tana nufin Class A tafasasshen karfe.
(3) Carbon karfe na musamman-manufa, kamar gada karfe, jirgin ruwa karfe, da dai sauransu, m rungumi dabi'ar magana Hanyar carbon tsarin karfe, amma ƙara da wata wasika da ke nuna manufar a karshen karfe lambar.

Babban abubuwan sinadaran Q235C
C	Si	Mn	P	S
0.17	0.35	1.40	0.040	0.040

Kauri (mm)
Q235C	≤ 16	> 16 ≤ 40	> 40 ≤ 60	> 60 ≤ 100	> 100 ≤ 150	> 150
Ƙarfin Haɓaka (≥Mpa)	235	225	215	215	195	185
Ƙarfin ƙarfi (Mpa)	370-500

Amfani:
Q235B yana da ƙayyadaddun haɓakawa, ƙarfi, ƙaƙƙarfan ƙaƙƙarfan ƙarfi da simintin gyare-gyare, kuma yana da sauƙin hatimi da walda. Ana amfani da shi sosai wajen kera sassan injina na gabaɗaya. Ana amfani da shi musamman don walda sassa na tsari tare da buƙatu masu inganci a cikin gini da injiniyan gada.

AB ya bambanta tsakanin Q235A da Q235B
: Karfe duk karfen carbon ne. A cikin ma'auni na ƙasa GB700-88, bambancin abu tsakanin Q235A da Q235B ya ta'allaka ne a cikin abun ciki na carbon na karfe. Abubuwan da ke cikin carbon na kayan Q235A shine 0.14-0.22%;
Kwamitin Q235A baya yin gwajin tasiri, yayin da Q235B yayi gwajin tasirin zafin daki na V-notch. Idan aka kwatanta, kayan aikin injiniya na karfe da aka yi da Q235B sun fi na Q235A.
A ƙarƙashin yanayi na yau da kullun, injinan ƙarfe suna yin alamar bayanin da aka gama akan farantin tantancewa kafin barin masana'anta. Masu amfani zasu iya tantance ko kayan akan farantin tantancewa shine Q235A, Q235B ko wani abu. Tsarin ƙira P≤ 1.6MPa; Yanayin aiki 0 ~ 350 ° C; Karfe farantin kauri> = 20mm