Sa:20 be
Standard:GB / t 699-1999

halaye
Ifin girman ya fi ƙarfe 15 na ƙarfe 15, da wuya ya ragu, babu zurfin walwala mai kyau, kamar kauri mai kyau mai kyau da aka yi amfani da shi sosai a cikin kera karfi da aka yi amfani da shi a cikin kera karfi tauri
Karfe yana da babban ingancin carbon carbon carbon carbon, carbrusena mai tsananin sanyi, da ƙarfi da wsibiri, ƙararrun ƙasa na 24% na 24%
Akized na iya inganta ƙwayar ƙarfe na ƙarfe, tsaftace babban toshe Proeutectocoid, da kuma inganta aikin aikin blanks ƙasa da 160hbs
Hanyar fasaha nabaƙin ƙarfeFashe-sassan sun mutu

Abubuwan sunadarai
C: 0.17% ~ 0.24%
Si: 0.17% ~ 0.37%
Mn: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
CR: 0.25%
Ni: 0.25%
Cu: 0.25
dukiyar inji
Tenerile ƙarfi b (MPA): ≥410 (42)
Yawan amfanin s (MPA): ≥245 (25)
Elongation 5 (%): ≥25
Rage yanki na yanki (%): 55 ko fiye
Hardness: Ba zafi da aka kula, ≤156hb
Samfurin samfurin: girman samfurin: 25mm

Sauran Bayani

Dangane da lafiya na zafi: al'ada, 910 ℃, sanyaya iska.

Tsarin ƙarfe: Ferrite + Pearlite.
Jiyya zafina karfe 20 da kuma kawar da wuya na karfe ba. 20:
Yin magani na 20 Karfe: na 55,50,80 yana yiwuwa a cimma matsakaiciyar al'ada ta 30-35hrc.Se ya fi ƙarfin dumama, ya fi girma.
1. Bayan mamariya mai wuya, kayan aikin yana gudana kamar duka ta hanyar magani mai zafi (920 ℃ matattarar brine), duk abin da ya kamata ya zama da kyau a ciki da waje da'irar mota, gyara wurin.
2. SOYA M MADING, CIKIN RANAR CIGABA DA AKE YI KYAUTA KWANKWASO KUDI (Ya danganta da girman aikin aikin), kuma a ƙarshe ƙare.
3. Carburizing da Quenching, nika rami na ciki da keyway.
Tsarin gudana shine na biyu, na uku kuma mafi yawa.
● Ilimin isarwa: isarwa a cikin yanayin rashin zafi ko magani mai zafi (ana amfani da shi, daidaituwa ko zafin jiki wanda aka nuna a cikin tsarin magani za a nuna a kwangilar. Idan ba a nuna ba, ana yin isar da isar da shi ba tare dajiyya zafi.