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

halaye
Ifin girman ya fi ƙarfe 15 na ƙarfe 15, da wuya ya zama fushi, babu wani walwala da guduma mai kyau. siffar subange sassa mai yiwuwa a kan yankan yankakken da aka zana ko na al'ada yanayin da aka yi amfani da shi a cikin kera karfi ba babba da ƙarfi
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, aikin kayan aikin yana gudana kamar duka ta hanyar magani mai zafi (920 ℃ trienchy brine), sannan ya kamata a sarrafa shi zuwa aiki, duk abin da ya kamata su iya aiwatarwa, komai sama da lafiya a ciki kuma a waje da da'irar mota, gyara keyway.
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 dalura da zafi.