304 chitoliro chosapanga dzimbiri chokhala ndi mfundo zonse
Njira zodziwika bwino pamsika zimaphatikizapo 06cr19ni10 ndi SUS304, pomwe 06cr19ni10 nthawi zambiri imatanthawuza kupanga mulingo wadziko lonse, 304 nthawi zambiri imatanthawuza kupanga mulingo wa ASTM, ndipo SUS 304 imatanthawuza kupanga mulingo waku Japan.
304 ndi chitsulo chosapanga dzimbiri chapadziko lonse, chomwe chimagwiritsidwa ntchito kwambiri popanga zida ndi magawo omwe amafunikira magwiridwe antchito abwino (kukana dzimbiri ndi mawonekedwe). Kuti chitsulo chosapanga dzimbiri chikhale cholimba, chitsulocho chiyenera kukhala ndi chromium yoposa 18% ndi faifi tambala 8%. 304 chitsulo chosapanga dzimbiri ndi mtundu wachitsulo chosapanga dzimbiri chopangidwa molingana ndi miyezo ya American ASTM.
Kulimba kwamphamvu σ b (MPa)≥515-1035
Mphamvu zokolola zokhazikika σ 0.2 (MPa)≥205
Elongation δ 5 (%)≥40
Kuchepetsa kwa dera ψ (%) ≥?
Kuuma: ≤ 201hbw; ≤92HRB; ≤210HV
Kachulukidwe (20 ℃, g / cm) ³): zisanu ndi ziwiri mfundo zisanu ndi zinayi zitatu
Malo osungunuka (℃): 1398 ~ 1454
Kutentha kwapadera (0 ~ 100 ℃, kJ · kg-1k-1): 0.50
Thermal conductivity (w · M-1 · k-1): (100 ℃) 16.3, (500 ℃) 21.5
Liniya kukula kokwanira (10-6 · k-1): (0 ~ 100 ℃) 17.2, (0 ~ 500 ℃) 18.4
Kukana (20 ℃, 10-6 Ω· m2 / M): 0.73
Longitudinal zotanuka modulus (20 ℃, kn / mm2): 193
Kwa 304 chitsulo chosapanga dzimbiri, chinthu cha Ni mu kapangidwe kake ndichofunika kwambiri, chomwe chimatsimikizira mwachindunji kukana kwa dzimbiri ndi mtengo wa 304 chitsulo chosapanga dzimbiri.
Zinthu zofunika kwambiri mu 304 ndi Ni ndi Cr, koma sizimangokhala pazinthu ziwirizi. Zofunikira zenizeni zafotokozedwa muyeso lazogulitsa. Malinga ndi chigamulo chofala m'makampani, zitsulo zosapanga dzimbiri 304 zitha kuganiziridwa malinga ngati zomwe Ni zili zazikulu kuposa 8% ndipo Cr zili zazikulu kuposa 18%. Ichi ndichifukwa chake zitsulo zosapanga dzimbiri zimatchedwa 18/8 zitsulo zosapanga dzimbiri pamakampani. M'malo mwake, miyeso yofananira yazogulitsa ili ndi zomveka bwino pa 304, ndipo miyezo yazinthu izi imakhala ndi zosiyana pamitundu yosiyanasiyana yachitsulo chosapanga dzimbiri. Nawa milingo yodziwika bwino yazinthu ndi mayeso.
Kuti mudziwe ngati chinthucho ndi chitsulo chosapanga dzimbiri cha 304, chiyenera kukwaniritsa zofunikira za chinthu chilichonse chomwe chili muzogulitsa. Malingana ngati munthu sakukwaniritsa zofunikira, sangathe kutchedwa 304 zitsulo zosapanga dzimbiri.
Mazana atatu ndi anayi
C
Mn
P
S
Si
Cr
Ndi
Zofunikira,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-11.0
ASTM a240 (chromium ndi chromium faifi tambala zitsulo zosapanga dzimbiri mbale, pepala pepala, ndi mizere mizere ya pressure essels ndi ntchito wamba)
Mazana atatu ndi anayi
C
Mn
P
S
Si
Cr
Ndi
N
Zofunikira,%
≤0.07
≤2.00
≤0.045
≤0.030
≤0.75
17.5–19.5
8.0–10.5
≤0.10
Mtengo wa S304
C
Mn
P
S
Si
Cr
Ndi
Zofunikira,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-10.5
Mtengo wa S304
C
Mn
P
S
Si
Cr
Ndi
Zofunikira,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-10.5
Miyezo inayi yomwe ili pamwambayi ndi yochepa chabe yofanana. M'malo mwake, zochulukirapo kuposa izi zimatchulidwa mu ASTM ndi JIS. M'malo mwake, mulingo uliwonse uli ndi zofunikira zosiyanasiyana za 304, ndiye ngati mukufuna kudziwa ngati chinthucho ndi 304, mawu olondola akuyenera kukhala ngati akukwaniritsa zofunikira za 304 pazogulitsa.
