304 chitsulo chosapanga dzimbiri ndi chinthu chofala pakati pa zitsulo zosapanga dzimbiri, zokhala ndi kachulukidwe ka 7.93 g/cm³; imatchedwanso 18/8 zitsulo zosapanga dzimbiri m'makampani, zomwe zikutanthauza kuti zili ndi chromium yoposa 18% ndi nickel yoposa 8%; ndi kugonjetsedwa ndi kutentha kwa 800 ℃, ali ndi ntchito yabwino processing ndi kulimba mkulu, ndipo chimagwiritsidwa ntchito m'mafakitale ndi mafakitale zokongoletsera mipando ndi chakudya ndi mankhwala mafakitale. Komabe, ziyenera kukumbukiridwa kuti zomwe zili muzitsulo zosapanga dzimbiri 304 ndizolimba kuposa zitsulo zosapanga dzimbiri 304 wamba. Mwachitsanzo: matanthauzo apadziko lonse a 304 zitsulo zosapanga dzimbiri ndikuti amakhala ndi 18% -20% chromium ndi 8% -10% nickel, koma chitsulo chosapanga dzimbiri cha 304 chili ndi 18% chromium ndi 8% nickel, kulola kusinthasintha mkati mwazinthu zina. osiyanasiyana ndi kuchepetsa zili zosiyanasiyana zitsulo zolemera. Mwa kuyankhula kwina, 304 chitsulo chosapanga dzimbiri sikuti ndi chakudya chamagulu 304 chitsulo chosapanga dzimbiri.
Njira zodziwika bwino pamsika zikuphatikiza 06Cr19Ni10 ndi SUS304, pomwe 06Cr19Ni10 nthawi zambiri imawonetsa kupanga mulingo wadziko lonse, 304 nthawi zambiri imawonetsa kupanga mulingo wa ASTM, ndipo SUS304 ikuwonetsa kupanga mulingo waku Japan.
304 ndi chitsulo chosapanga dzimbiri chosapanga dzimbiri, 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 kalasi yazitsulo zosapanga dzimbiri zopangidwa molingana ndi muyezo waku America ASTM.
Zakuthupi:
Kulimba kwamphamvu σb (MPa) ≥ 515-1035
Mphamvu zokolola zokhazikika σ0.2 (MPa) ≥ 205
Elongation δ5 (%) ≥ 40
Kuchepa kwa magawo ψ (%)≥?
Kuuma: ≤201HBW; ≤92HRB; ≤210HV
Kachulukidwe (20 ℃, g/cm³): 7.93
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
Linear kufutukula coefficient (10-6·K-1): (0~100℃) 17.2, (0~500℃) 18.4
Kukana (20℃, 10-6Ω·m2/m): 0.73
Longitudinal zotanuka modulus (20 ℃, KN/mm2): 193
Mankhwala zikuchokera
Report
Mkonzi
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 zimafotokozedwa ndi miyezo ya mankhwala. Chigamulo chodziwika bwino pamakampani ndikuti malinga ngati zinthu za Ni zili zazikulu kuposa 8% ndipo Cr zili zazikulu kuposa 18%, zitha kuwonedwa ngati zitsulo zosapanga dzimbiri 304. Ichi ndichifukwa chake makampani amatcha mtundu uwu wa zitsulo zosapanga dzimbiri 18/8 zitsulo zosapanga dzimbiri. M'malo mwake, miyeso yofananira yazogulitsa ili ndi malamulo omveka bwino a 304, ndipo miyezo yazinthu izi imakhala ndi kusiyana kwina kwachitsulo chosapanga dzimbiri chamitundu yosiyanasiyana. Zotsatirazi ndi zina zodziwika bwino zamagulu 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.
1. ASTM A276 (Mafotokozedwe Okhazikika a Mipiringidzo ya Zitsulo Zosapanga dzimbiri ndi Mawonekedwe)
304
C
Mn
P
S
Si
Cr
Ni
Zofunikira,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-11.0
2. ASTM A240 (Chromium ndi Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure essels and for General Applications)
304
C
Mn
P
S
Si
Cr
Ni
N
Zofunikira,%
≤0.07
≤2.00
≤0.045
≤0.030
≤0.75
17.5–19.5
8.0–10.5
≤0.10
3. JIS G4305 (mbale yoziziritsa zosapanga dzimbiri, pepala ndi mzere)
Mtengo wa S304
C
Mn
P
S
Si
Cr
Ni
Zofunikira,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-10.5
4. JIS G4303 (zitsulo zosapanga dzimbiri)
Mtengo wa S304
C
Mn
P
S
Si
Cr
Ni
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 ina chabe mwa yofala. M'malo mwake, pali zambiri kuposa izi zomwe zimatchula 304 mu ASTM ndi JIS. M'malo mwake, mulingo uliwonse uli ndi zofunikira zosiyanasiyana za 304, kotero ngati mukufuna kudziwa ngati chinthucho ndi 304, njira yolondola yofotokozera iyenera kukhala ngati ikukwaniritsa zofunikira za 304 pamtundu wina wazinthu.
Mulingo wazinthu:
1. Njira yolembera zilembo
American Iron and Steel Institute imagwiritsa ntchito manambala atatu kuti alembe mitundu yosiyanasiyana yazitsulo zosapanga dzimbiri. Mwa iwo:
① Chitsulo chosapanga dzimbiri cha Austenitic chili ndi manambala 200 ndi 300. Mwachitsanzo, zitsulo zina zosapanga dzimbiri za austenitic zimalembedwa ndi 201, 304, 316 ndi 310.
② Zitsulo zosapanga dzimbiri za ferritic ndi martensitic zimayimiriridwa ndi manambala 400.
③ Chitsulo chosapanga dzimbiri cha Ferritic chimalembedwa ndi 430 ndi 446, ndipo chitsulo chosapanga dzimbiri cha martensitic chimalembedwa ndi 410, 420 ndi 440C.
④ Duplex (austenitic-ferrite), chitsulo chosapanga dzimbiri, mvula yowumitsa zitsulo zosapanga dzimbiri ndi ma aloyi apamwamba okhala ndi chitsulo chosakwana 50% nthawi zambiri amatchulidwa ndi mayina kapena zizindikiritso.
2. Magulu ndi magiredi
1. Magulu ndi magulu: ① Mulingo wapadziko lonse wa GB ② Mulingo wamakampani YB ③ Muyezo wakumaloko ④ Muyezo wamakampani Q/CB
2. Gulu: ① Mulingo wazinthu ② Mulingo woyika ③ Njira yokhazikika ④ Mulingo woyambira
3. Mulingo wamba (wogawika m’magawo atatu): Mulingo wa Y: Mulingo wapadziko lonse wotsogola wa I: Mulingo wapadziko lonse wa H: Mulingo wapamwamba wapakhomo
4. Muyezo wa dziko
GB1220-2007 Mipiringidzo yachitsulo chosapanga dzimbiri (mulingo wa I) GB4241-84 koyilo yachitsulo chosapanga dzimbiri (H mlingo)
GB4356-2002 Koyilo yachitsulo chosapanga dzimbiri (mulingo wa I) GB1270-80 chitoliro chachitsulo chosapanga dzimbiri (mulingo wa I)
GB12771-2000 Chitsulo chosapanga dzimbiri welded chitoliro (Y mlingo) GB3280-2007 Stainless zitsulo ozizira mbale (I mlingo)
GB4237-2007 Stainless steel hot plate (I level) GB4239-91 Lamba wosapanga dzimbiri wosapanga dzimbiri (I level)
Nthawi yotumiza: Sep-11-2024