SUS 439 Stainless Steel Pipe For Exhaust Tubing SS439M Welded 102*2
SUS 439 Stainless Steel Pipe For Exhaust Tubing SS439M Welded 102*2
SUS 439 Stainless Steel Pipe For Exhaust Tubing SS439M Welded 102*2
SUS 439 Stainless Steel Pipe For Exhaust Tubing SS439M Welded 102*2
SUS 439 Stainless Steel Pipe For Exhaust Tubing SS439M Welded 102*2
SUS 439 Stainless hlau yeeb nkab rau Exhaust Tubing SS439M Welded 102 * 2
Raws li tus neeg muag khoom thiab chaw tsim khoom nyob rau hauv Suav teb, GNEE Steel muab tus nqi -nickel zoo- raws li cov khoom siv alloy.
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SUS 439 Stainless hlau yeeb nkab rau Exhaust Tubing SS439M Welded 102 * 2
Kev piav qhia
| Steel Qib: | 439 | Hom: | Welded |
|---|---|---|---|
| Vuam kab hom: | ERW | Txheem: | EN, ASTM, AISI, DIN, JIS |
| Daim ntawv thov: | Kev tsim kho, Kho kom zoo nkauj, kev lag luam | Nto: | Annealing 2D |
| Thickness: | 0 3-3mm | Ntev: | 6 Meters lossis Customized |
| Sab nraud txoj kab uas hla: | 16-127 hli | Nqe Sijhawm: | CIF, FOB, EX-WORK |
| Lub teeb siab: |
Stainless hlau Welded yeeb nkab rau Exhaust,SUS 439 Stainless Hlau Tubing,Welded 102 * 2 Stainless hlau yeeb nkab |
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SUS 439 Stainless Hlau Yeeb Nkab Rau Exhaust Tubing SS439M Stainless Hlau Welded Yeeb Nkab 102 * 2
439 Stainless hlau
439 stainless hlau yog titanium stabilized ferritic stainless hlau qib nrog , 18 feem pua chromium alloy, nws tsim los tiv thaiv corrosion nyob rau hauv ntau yam oxidizing ib puag ncig los ntawm dej tshiab rau boiling acids, nws corrosion kuj zoo ib yam li 304/304L stainless hlau. Hom 439 kuj tseem tuaj yeem siv rau hauv ntau qhov chaw oxidizing qhov twg Hom 304 raug suav hais tias tsim nyog raws li kev tiv thaiv corrosion tab sis raug rau chloride kev nyuaj siab corrosion cracking. Qhov kev hloov pauv no tsis tas yuav tsum tau annealing tom qab vuam kom rov qab ductility los yog muab cov kev cuam tshuam ntawm intergranular corrosion. Hom 439 kuj muaj peev xwm ua tau zoo tshaj plaws thiab siv ntau hauv kev lag luam tsheb; nws tuaj yeem ua haujlwm hardened me ntsis kom muaj zog tensile.
Kev tiv thaiv zoo heev rau kev ntxhov siab corrosion tawg, zoo weldability, siab thermal conductivity thiab thermal expansion yam ntxwv ua rau hom 439 stainless hlau ib qho kev xav zoo rau ntau daim ntawv thov, raug siv xws li tubular manifolds thiab cov khoom siv hluav taws xob.
439 Stainless hlau nta
Stainless hlau qib 439 muaj zoo weldability, brightness, thiab pitting corrosion kuj. Nws polishes zoo, thiab yog qhov zoo rau kev kos duab sib sib zog nqus.
Zoo heev tiv thaiv chloride kev nyuaj siab corrosion cracking
Zoo dav corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv cov dej tshiab thiab me me oxidizing ib puag ncig
Weldability
Lub sij hawm ntev tus nqi zoo
High thermal conductivity coefficient
Tsawg thermal expansion coefficient
Zoo nruam thiab cyclic oxidation kuj.
Cov ntawv thov nyob rau hauv automotive exhaust system thiab heat exchanger system
439 Stainless hlau Chemical Composition
| Qib | C | Si | Mn | P | S | Cr | Ni | N | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 439 | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 17.00 – 19.00 | 0.5 | 0.030 | [0.20+4(C+N)] Min, 1.10 Max; |
Bal |
| TIAB SA 439 | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 17.00 – 19.00 | 0.5 | 0.040 | [0.20+4(C+N)] Min, 1.10 Max; |
Bal |
Max, %, 439 rau ASTM A240 Phaj, Ntawv thiab Sawb, TP439 rau ASTM A268 seamless thiab welded raj
439 Stainless Hlau Mechanical Properties
| Qib | Tensile zog (MPa) Min |
Yield zog 0.2% Pov thawj (MPa) Min |
Elongation (% Hauv 50mm) Min |
Hardness Rockwell B (HR B) Max |
Hardness Brinell (HB) Max |
|---|---|---|---|---|---|
| 439 | 415 | 205 | 22 | 89 | 183 |
| TIAB SA 439 | 415 | 205 | 20 | 90 | 190 |
439 rau ASTM A240 Phaj, Ntawv thiab Sawb, TP439 rau ASTM A268 seamless thiab welded raj
439 Stainless Hlau Lub cev muaj zog
| Lub cev khoom | Tus nqi |
|---|---|
| Qhov ntom | 7.70 G/Cm³ |
| Melting Point | 1505 degree |
| Thermal Expansion | 11.0 X10^-6 /K |
| Modulus ntawm Elasticity | 220 GPa |
| Thermal conductivity | 25.0 W/M.K |
| Hluav taws xob Resistivity | 0.60 X10^-6 Ω .M |
Qib sib npaug ntawm 439 Stainless Hlau
| Teb chaws USA UNS |
EU EN |
Nyiv JIS |
Lub teb chaws Yelemees DIN |
Russia GOST |
|---|---|---|---|---|
| 439 S43035 |
X3CrTi17 | SUS 430 LX | 1.4510 | 08 KH17 |
Corrosion Resistance:
439 stainless hlau yog resistant mus tua los ntawm potable dej thiab ntau me me los yog nruab nrab corrosive tshuaj ib puag ncig uas yog oxidizing nyob rau hauv cov xwm. Nyob rau hauv ntau yam tshuaj chloride, cov kev tshawb fawb tau pom pitting tsis kam ntawm hom 439 yuav tsum superior rau hom 304. Tsis tas li ntawd, Hom 439 tsis raug kev nyuaj siab corrosion cracking uas yuav ua rau ntxov ntxov tsis ua hauj lwm ntawm austenitic steels nyob rau hauv chloride bearing ib puag ncig xws li dej kub. siv nyob rau hauv tshav kub exchangers.
Vuam
439 stainless hlau yog weldable los ntawm ib txwm stainless hlau txoj kev xws li chaw vuam, TIG, MIG, laser thiab siab zaus raj vuam. Pa roj shielding yog siv nrog cov txheej txheem tungsten lossis hlau arc. Yog hais tias muab tub lim ntxiv rau hauv qhov tso nyiaj, lub stabilized stainless hlau los yog npib tsib xee puag alloy yuav tsum tau txiav txim siab kom muaj kev tiv thaiv corrosion hauv cov hlau weld. Rau cov ntawv thov kub siab xws li cov tshuab hluav taws xob tsheb, hom 439 thiab hom 444 alloys yuav nyiam kom tswj tau qhov thermal expansion compatibility. welded kom raug, qib 439 alloy khaws cov corrosion kuj thiab yuav luag tag nrho cov khoom ntawm lub hauv paus hlau nyob rau hauv lub weld fusion thiab tshav kub cuam tshuam cheeb tsam. Vim yog cov ntsiab lus titanium, cov hlau weld yuav tsis pub dawb ntawm martensite feem ntau cuam tshuam nrog ferritic stainless welds. Tsis tas li ntawd, vim yog cov ntsiab lus titanium no, thaj chaw tshav kub cuam tshuam yog tiv thaiv intergranular corrosive nres nyob rau hauv ib puag ncig uas lub hauv paus hlau yog txaus siab siv. Vuam cov hlau no txawm tias muaj kev tiv thaiv roj txaus yuav ua rau qee qhov cua sov los yog oxidation uas yuav tsum tau muab tshem tawm kom muaj kev tiv thaiv corrosion ntau tshaj.
Kev kho cua sov
Stainless hlau 439 alloy yuav tsum tau annealed ntawm 1450 thiab 1600 degree F (790 thiab 871 degree) thiab txias sai. Cov nqi cua txias cuam tshuam rau kev hloov pauv nrog qeeb txias ua kom siab dua, tsis xav tau kev hloov pauv. Ferritic stainless hlau uas muaj ntau tshaj li ntawm 12% chromium muaj qhov cuam tshuam rau qhov tshwm sim hu ua 885 degree F (475 degree) embrittlement. Qhov no embrittlement yog pom raws li ib tug degradation ntawm tej yam khoom nyob rau hauv lub chav tsev kub uas tshwm sim los ntawm ntev heev exposures nyob rau hauv lub kub ntawm 700 mus 1000 degree F (371 txog 537 degree). Yog tias qhov kev pabcuam kub tau dhau los ntawm qhov ntau yam no, raug tshaj li ntawm 1050 degree F (565 degree) rov ua dua chav tsev kub toughness. Thaum muaj lub sijhawm nyob ntev ze ntawm 885 degree F (475 degree), kev pabcuam kub uas mus txog 1050 degree F (565 degree) yog qhov muaj txiaj ntsig zoo dua li tsis muaj kev puas tsuaj.
Daim ntawv thov
Qhov sib xyaw tshwj xeeb ntawm cov khoom ntawm 439 stainless hlau ua rau nws yog qhov tsim nyog xaiv rau ntau daim ntawv thov. Nws tau siv nrog 25 xyoo ntawm cov ntaub ntawv kev pabcuam hauv cov dej kub tank daim ntawv thov uas yuav tsum tau zoo tag nrho corrosion kuj, tsis kam mus rau kev nyuaj siab corrosion cracking thiab zoo weldability. Lub alloy lub oxidation tsis kam tso cai rau nws siv nyob rau hauv lub tsev rauv taws thiab automotive pa system Cheebtsam. 439 alloy corrosion kuj, fabricability thiab reflective xim compatibility tau ua nyob rau hauv nws siv raws li me me txoj kab uas hla raj los hloov khoom hlau spokes nyob rau hauv automotive wheelcover daim ntaub ntawv. Lub alloy tau hloov cov pa roj carbon steel kub exchanger raj yam tsis muaj expansion pob qij txha vim nws tsis tshua muaj coefficient ntawm thermal expansion. 439 alloy siab dua thermal conductivity, piv rau cov pa stainless hlau, tau ua rau nws xaiv tshaj hom 304 nyob rau hauv ib tug xov tooj ntawm feedwater rhaub daim ntaub ntawv. Kev siv tau zoo ntawm ib qho alloy yog nyob ntawm ntau qhov sib txawv. Nws yog ib qho tseem ceeb uas yuav tsum tau ua tib zoo xav txog cov no ua ntej xaiv cov khoom siv, suav nrog 439 stainless hlau.
Stainless hlau qib 439 muaj peev xwm ua rau hauv cov duab nyuaj xws li tubular manifolds thiab cov khoom siv hluav taws xob tso tawm, qhov twg qhov kub thiab txias yuav dhau mus dhau qhov txwv oxidation ntawm qib 409 steel. 439 stainless hlau yog qhov zoo dua qhov chaw ntub dej corrosion tshwj xeeb tshaj yog xav tau chlorides.
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