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STE255 karfe farantin karfe

Ana amfani da Steel Steel255 don buƙatu na musamman bisa ga DIN 17178: 1986-5 don bututun ƙarfe na welded kuma bisa ga DIN 17179: 1986-5 don bututun ƙarfe mara nauyi. Ana amfani da waɗannan bututun ƙarfe sama da duka a cikin ginin jirgin ruwa mai matsa lamba, ginin na'urori, ginin bututu, da ma injin gabaɗaya da ginin kayan aiki.
Haɗin Sinadari
Daraja C
Si Mn P
S
N
Al
Cr
Ku
Mo
Ni
Nb
Ti
V
Nb+Ti+V
STE255 0.18 ≤0.40 0.50 0.035 0.030 0.020 0.020 0.30 0.20 0.08 0.30 0.03 --- --- 0.05
Kayan Injiniya
Maki Ƙarfin Ƙarfin Ƙarfi Rmdomin
kauri samfurin s, in mm
N/mm²
Matsi na Babban Haɓaka ReH²) don kauri samfurin s, a mm
N/mm² min.
Elongation bayan karaya3)
(Lo=5do) % min.
Diamita na Mandrel don gwajin lanƙwasa 4), 5)
s≤70 70s 85 85s 100 100s≤125 125s≤150 s≤16 16s≤35 35s≤50 50s≤60 60s≤70 70s 85 85s 100 100s≤125 125s≤150 Tsayi Tafsiri 6)
STE255 360~480 350~470 340~460 330~450 320~440 255 245 235 225 215 205 195 25
Tambaya
* Suna
* Imel
Waya
Ƙasa
Sako