Simbi dzesimbi dzemaindasitiri mapaipi akakosha maindasitiri mazhinji nekuda kwesimba rawo remakina, corrosion resistance, uye kushivirira kwepamusoro-soro. Zvichienderana nenharaunda yekushanda uye hunyanzvi hwekuita, mamakisi anowanzo shandiswa anosanganisira 304, 316, 321, 347, 904L, pamwe ne duplex simbi isina tsvina senge.2205uye2507. Ichi chinyorwa chinoongorora zvine hungwaru mashandiro, simba rekumanikidza, uye mashandisirwo emapaipi esimbi isina tsvina kutungamira kusarudzwa kwezvinhu.
1. Common Stainless Steel Magiredhi uye Hunhu Hwavo
•304L Stainless simbi maindasitiri pombi: Sesimbi yakaderera-kabhoni 304, kazhinji, kushorwa kwayo kwakafanana ne304, asi mushure mekuputika kana kusunungurwa kwekunetseka, kupikisa kwayo kune intergranular corrosion kwakanakisisa, uye inogona kuchengetedza kunaka kwekudzivirira kusagadzikana pasina kupisa kupisa.
• 304 Stainless simbi maindasitiri pombi: Iine kunaka ngura kuramba, kupisa kuramba, yakaderera tembiricha simba uye mechanical zvinhu, yakanaka inopisa kugadzirwa zvinhu zvakadai stamping uye kukotama, uye hapana kupisa kurapwa kuomesa chiitiko. Zvishandiso: tableware, makabhati, boilers, auto parts, medical equipment, building materials, food industry (shandisa tembiricha -196°C-700°C)
Iwo makuru maficha e310 simbi isina simbi yeindasitiri pombi ndeiyi: yakakwira tembiricha kuramba, inowanzoshandiswa mumaboilers, mota inopedza pombi. Zvimwe zvinhu zviri general.
• 303 Stainless simbi yeindasitiri pombi: Nekuwedzera shoma shoma yesarufa uye phosphorus, zviri nyore kutema kupfuura 304, uye zvimwe zvinhu zvakafanana ne304.
• 302 Stainless simbi maindasitiri pombi: 302 Stainless simbi mbariro anoshandiswa zvikuru mumotokari zvikamu, avhiyesheni, aerospace hardware maturusi, uye makemikari indasitiri. Zvakanyanya sezvinotevera: mabasa emaoko, mabhengi, maruva anotsvedza, midziyo yezvokurapa, midziyo yemagetsi, nezvimwewo Zvimiro: 302 bhora resimbi isina tsvina ndeye austenitic simbi, iyo iri pedyo ne304, asi 302 ine kuoma kwepamusoro, HRC≤28, uye ine rust yakanaka uye kusagadzikana kwekuora.
• 301 simbi isina tsvina yemaindasitiri pombi: yakanaka ductility, inoshandiswa kune zvigadzirwa zvakaumbwa. Inogonawo kukurumidza kuomeswa ne mechanical processing. Weldability yakanaka. Pfeka kuramba uye kuneta simba zviri nani pane 304 Stainless simbi.
• 202 simbi isina tsvina yemaindasitiri pombi: ndeye chromium-nickel-manganese austenitic simbi isina tsvina, ine kushanda kuri nani kupfuura 201 simbi isina tsvina.
•201 Stainless simbi yemaindasitiri pombi: ndeye chromium-nickel-manganese austenitic stainless simbi, ine magnetism yakaderera.
•410 Stainless simbi maindasitiri pombi: ndeye martensite (yakakwirira-yakasimba chromium simbi), ine zvakanaka kupfeka kusagadzikana uye kusasimba kwekusagadzikana.
• 420 Stainless steel industrial pipe: "Tool grade" martensitic steel, yakafanana neBrinell high chromium steel, an Ultra-early Stainless steel. Inoshandiswawo pamapanga ekuvhiya uye inogona kuitwa yakajeka zvikuru.
• 430 simbi isina tsvina yepombi: ferritic simbi isina tsvina, inoshandiswa pakushongedza, yakadai semotokari. Kuumbwa kwakanaka, asi kushomeka kwekushisa kwekudzivirira uye kusagadzikana kwekuora
2. Kupikisa Kurwisana kweStainless Steel Pipes
Kusimba kwepombi yesimbi isina tsvina kunoenderana nehukuru hwayo (kunze kwedhayamita), ukobvu hwemadziro (semuenzaniso, SCH40, SCH80), uye tembiricha yekushandisa. Mitemo yakakosha:
•Madhuri akakobvu nemadhayamita madiki anopa simba repamusoro.
•Kupisa kwepamusoro kunoderedza simba rezvinhu uye kudzvinyirira zvikumbaridzo.
• Duplex simbi dzakaita se2205 dzinopa dzinenge dzakapetwa kaviri kusimba kwe316L.
Semuenzaniso, 4-inch SCH40 304 pombi yesimbi isina tsvina inogona kubata approx. 1102 psi pasi pemamiriro ezvinhu. Iyo 1-inch pombi inogona kudarika 2000 psi. Mainjiniya anofanirwa kubvunza ASME B31.3 kana miyero yakafanana yezviyero zvekumanikidza.
3. Corrosion Performance muHash Environments
Chloride-Rich Environments
304 inowanzoita gomba uye SCC munzvimbo dzine munyu. 316L kana kupfuura inokurudzirwa. Pazviitiko zvakanyanyisa semvura yegungwa kana munyu wekupfapfaidza, 2205, 2507, kana 904L zviri nani.
Acid kana Oxidizing Media
316L inoita zvakanaka mumaasidhi asina simba. Kune aggressive acids senge sulfuric kana phosphoric acid, sarudza 904L kana high-alloy duplex simbi.
High-Temperature Oxidation
Kune tembiricha dzinopfuura 500 ° C, 304 uye 316 dzinogona kurasikirwa nekubudirira. Shandisa mamakisi akatsiga senge 321 kana 347 yekuenderera mberi sevhisi kusvika ~900°C.
4. Major Industrial Applications
Oiri & Gasi Indasitiri
Inoshandiswa mukugadzira pombi, kupisa kupisa, uye mitsetse yekufambisa. Kune gasi rakavava uye chloride mamiriro, 2205/2507/904L inosarudzwa. Duplex simbi dzinoshandiswa zvakanyanya mukutsinhanisa kupisa nekuda kwesimba rayo repamusoro uye kusagadzikana kwekuora.
Chikafu & Chinwiwa
Smooth surface finish inodzivirira kukura kwebhakitiriya. 304/316L yakanakira mukaka, kubika, uye sosi. 316L inoita zvirinani nezvikafu zvine acidic kana zvine munyu. Mapombi anowanzo gadziriswa nemagetsi kuitira hutsanana.
Pharmaceutical Industry
Inoda kuchena kwepamusoro uye kusagadzikana kwekuora. 316L uye akasiyana se316LVM anoshandiswa kucheneswa mvura uye CIP/SIP masisitimu. Masurfaces anowanzo kuve akakwenenzverwa negirazi.
5. Giredhi Selection Guide by Application
| Application Environment | Recommended Grades |
| General Mvura / Mhepo | 304 / 304L |
| Chloride-Rich Environments | 316 / 316L kana 2205 |
| High-Temperature Atmosphere | 321 / 347 |
| Yakasimba Acids / Phosphoric | 904L, 2507 |
| Food-Grade Hutsanana Systems | 316L (Emagetsi) |
| Pharmaceutical Systems | 316L / 316LVM |
Nguva yekutumira: May-06-2025