bututun mai sauri B2 B3 X C22 C275 C276 SMLS Welded Karfe Pupe

A789 S31803 da unpents S32205 maki biyu ne na Duplex Bakin Karfe wanda aka yi amfani da shi a aikace-aikace da yawa masana'antu. Wadannan dollex S31803 bututun ruwa sun san su don kyakkyawan lalata juriya, babban ƙarfi, da kuma walwala. A789 tabbatacciyar ƙayyadadden abubuwa ne wanda ke rufe tubes da welded tubes da aka sanya daga Duplex bakin karfe.

Nickel
Balagagge na titanium kusan kashi 60% na bakin karfe da allon nickel, wannan tanadi mai nauyi yana sa ya zama sanannen sanannen zaɓi a cikin aikace-aikacen inda Aerospace.
\ / 5 dangane da

Dulax Karfe Bars & Rods
Fasahar Carbon Karfe
Sa Fasaha 316 lanƙwasa ba sauki ga injin, alhali ya fi wahala fiye da carbon karfe. Ana buƙatar ƙarin iko zuwa aji na 316. Yanke saurin ya zama ƙasa, abincin mafi girma, kayan aiki da kayan aiki mai nauyi.
https: \ / \ / www.htpipe.com \ / selpipe

An tsara Monel 400 a matsayin lambar Werkstoff 2.4360 da und N04400. Alloy 400 PIP 400 PIPE wanda aka sani da Monel Alloy 400 bututu, monel 400 bututu & nickel Alloy 400 bututu.

Asme sa182 ss 317 flanges manyan abun ciki na molybdenum abun ciki yana inganta mafi girman fargaba. Shine mafi lalata da jeri na 300 na alluruka kuma ya mallaki mafi yawan adadin tsadar kayan aiki da Creep a yanayin zafi.

S31803 shine tsarin ƙididdigar lamba (mara izini) ƙira don asalin Duplex bakin karfe. Kungiyoyi masu ciniki da yawa sun kirkiro da kungiyoyin kasuwanci da yawa a cikin shekarun 1970 don rage rikicewa yayin da aka kira kowa abubuwa daban-daban, da kuma mataimakinsu. Kowane ƙarfe yana wakilta ta hanyar wasiƙu da lambobi biyar, inda harafin yake wakiltar jerin baƙin ƙarfe, I.e. S for bakin karfe.

Nickel-tagulla na tushen Singy 400 Monel 2.4360 sanyi Drawny sanda shi ne kusan hanyoyin lalata da ke tattare da kafaffiyar hanya a cikin mahalli na yau da kullun. Monel 400 ne jan ƙarfe da na nickel dangane da wannan sanannen ya shahara a yau saboda babban aikinta. Alloy yana da kyakkyawan acid da alkali resistance. Bugu da kari, yana da ƙarfi mai yawa, karkara, kyakkyawan aiki, kuma yana iya taurare ta hanyar aikin sanyi. Bugu da ƙari, ana iya amfani dashi a aikace-aikace tare da yanayin zafi daga debe ga digiri 538 Celsius.

Type 304 Bakin Karfe Darasi na Austenitic ne wanda zai iya zama mai zurfi Drawn. Wannan halayyar ta haifar da 304 Kasancewa aji na farko da aka yi amfani da shi a aikace-aikacen kamar nutse da kwano.

Incoloy 800h flange muna da karfi suna da karfi a cikin masana'antar don samar da manyan flanges daban-daban iri wanda zai dace da bukatun abokan cinikinmu. Mun kera infinoy 800 flanges waɗanda suke dogara kuma suna da inganci. Muna amfani da albarkatu da kayan aikin haɓaka da haɓaka haɓaka don samar da Astm B564 mara nauyi N0880 indoloy 800 flanges.

Yana nuna kyakkyawar juriya ga tsaka tsaki da rage mahalli. Wannan alloy yaso da isasshen oxide, fim mai kariya wanda baya kashewa, amma yana riƙe da manyan juriya da iskar shaka ta iskar shaka a cikin yanayin zafi.

Flanged hadin gwiwa yana hade da uku daban-daban daban-daban da ya hade ko da yake; flanges, gas, da kuma bolting; wanda ake tattare da wani tasiri, mai dacewa. Ana buƙatar masu sarrafawa na musamman a cikin zaɓi da aikace-aikacen duk akwai abubuwan da zasu iya samun haɗin gwiwa, wanda ke da karfin gwiwa.

Sauraren C-276 masu sauri da sauran samfurori a cikin dangin Harajoji suna da kyakkyawan juriya ga lalata da oxdizing da rage sunadarai. Saboda daidaitawa, da sauri C-276 Za a iya amfani da alloy a cikin wuraren matsala kuma ya fi faruwa a wuraren aiwatarwa. Hanyoyin 276 kututtuna da sauri sun dace da yawancin aikace-aikacen sunadarai a cikin walwani. Koyaya, ya kamata a lura cewa a cikin mahalli inda C-276 Alloy Weld gidajen haɗin gwiwa suna batun kai hari, yakamata a yi la'akari da kayan wasan Weller.

Astm ATM A240 Type 2205 Farantin shine kwando na Bakin Karfe wanda ake amfani dashi sosai a cikin masana'antu daban-daban, da binciken mai da injin gas, da injin gas. Sa 240 gr 2205 takaddun an yi shi ne daga aji na 2205 bakin karfe, wanda shine haɗakar ferritic da ƙarfe na yau da kullun.

Zai iya yin tsayayya da ƙamshi da yawa na oxidizing da marasa amfani da ba su haifar da juriya da tsayayya da tashin hankali da kuma harin da sauran halides.

Ana amfani da bututun mai sauri a masana'antu a cikin manyan masana'antu ciki har da sarrafawa na petrochemical, masana'antar sarrafa kayan aikin sunadarai, masu girki da tsire-tsire mai.

HT PIPE shine jagora da ba a bayyana ba, yana ba da cikakken layin da aka ba da izini da kayan kwalliya na carbon, da kwayoyi, kayan kwalliya, sokensu, ciki har da duk maki. Babban fayil ɗin samfurin da ke rufe duk fannoni da abubuwan da masana'antu, samar da samfuran inganci da zaku iya amfani da amincewa da amincewa

Wannan yana bayar da inganta juriya ga sulfuric acid. Hakanan yana da babban abun ciki na chromium, don haɓaka juriya game da sinadarai da ƙayyadowin da ke gurbata tare da ferric ions da kuma narkar da ointen oints kuma narkar da oxygen.
Duplex ya yi birgima Bely Karfe Square Tube

Super Duplex yana da duk fa'idodin wasu fa'idodin wasu ɗakunan drlex, musamman da ƙarfin fa'idodin tsarin tsarin su na ɓoyayyen kayan aikinsu daidai da sinadarin. Wannan microstructure yana sa duk Dupstrox steves kusa da sau biyu mai ƙarfi kamar tsari na yau da kullun ferritex ko kuma molyitenum yalwa ya fi ƙarfin lalata fiye da takwarorinsa fiye da takwarorinsa.

Astm A335 P91 Belded bututun, A335 P91 P91 P91 P91 P91 PILE POPE SOVOY Karfe Pipe ya dace da lanƙwasa ayyukan, kamar yadda manyan ayyuka a cikin hidimar zazzabi mai yawa. Mun mallaki ASTM A335 P9amless m butu (hfs), asme sa gr.91 bututu da gas mai girma tare da kewayon girman kai tsaye har zuwa 100mm.

Flange na iya zama farantin don rufe ko rufe ƙarshen bututu. Wannan ana kiranta makaho mai kauri. Don haka, ana ɗaukar flanges su zama kayan haɗin ciki waɗanda ake amfani dasu don tallafawa sassan injin na inji.

filayen ƙarfe a105, flange na A350 LF2, FlF2 FlF2, A350 LF2 Flange, Maka Makafi, Flan Karfe Flange, Flah

? Da? Astm A182 F304 FLGESES? Ana iya tsabtace saukin kai tsaye. Duk da aka maimaita jerin hanyoyin tsabtace tsayawa, waɗannan fannonan wasan ƙasa sun watsawa, wani iko yana nuna saboda kyakkyawan kayan juriya. Haka kuma, tunda aji 304 shine komai wanda za'a iya ƙirƙirar shi cikin sifofi daban-daban, ana sauƙaƙe cikin kowane irin flanis? Inox 304 zamawa akan flani.

Da sauri C-2000 Faster, da yawa da aka sani da yawa kamar Allioy C-2000, wani m-molybdenum recrosion tare da kyakkyawan juriya don juriya da damuwa da kuma m lalata lalata da kuma m lalata lalata da kuma pitting lalata. A C-2000 Faster (unce N06200) ya bambanta tsakanin sauran hanyoyin sauri tare da kusan 1.6% na jan ƙarfe ya kara da shi ne na sinadarai. Waɗannan kaddarorin suna sa su zama da kyau don aikace-aikace kamar masu musayar zafi da masu amfani da masana'antu.

Nickel Alhoy 400 da na onel 400, wanda kuma aka sani da unƙasa Nickoy na jan ƙarfe da aka kunshi da farko na biyu cikin uku nickel da na uku nickel da na uku nickel da kuma na uku nickel da na uku nickel da na uku nickel da kuma na uku nickel. Nickel Alloy 400 an san shi da juriya game da yanayin lalata yanayi, gami da Alkalis (ko acidros), ruwan gishiri, acid. Tunda Monel 400 ko Alloy 400 karfe ne mai sanyi, wannan rigakafin yana da wuya, taurin kai da ƙarfi. Ta hanyar sanyi Astm B164 uns n04400 mashin n04400 san hannun jari, an gina alloy zuwa matakan mikiya na inji, wanda kuma ya haifar da canje-canje a cikin Microstruchure a cikin Microstruchure a cikin Microsoy na Microstruchture.

Flashes flanges na samar da sauki ga tsaftacewa, dubawa ko gyara. Yawancin lokaci suna zuwa siffofin zagaye amma za su iya zuwa cikin square da siffofin real. Flanges an haɗa su da juna ta hanyar bolting kuma sun shiga cikin tsarin pipping ta hanyar walda ko an tsara su ga takamaiman matsin lamba; 150lb, 300lb, 400lb, 600lb, 900lb, 1500lb and 2500lb.

Kamfanin jirgin sama mai sauri
Flange shine hanyar haɗawa da haɗawa bayan ƙwallon ƙafa. Ana amfani da flanges lokacin da haɗin gwiwa na buƙatar rolling. Yana bayar da sassauƙa don kulawa. Flani yana haɗu da bututu da kayan aiki da bawuloli. Ana ƙara flanges masu fashewa a cikin tsarin bututun mai idan an tabbatar da kulawa ta yau da kullun yayin aikin shuka.

Unguwa da aka ambata kamar Alloy Al6xn Al6xn shine ƙananan carbon, babban tsarki, nitrogen-moldenum super-molyitenum reurmeri da kyakkyawan juriya ga lalata da kuma kyakkyawan lalata.

Sashe na watsarmu don ASM A cikin Wuya na Carbon Karfe na Wuya na Carbon Karfe na Standard ne, kamar yadda muke damuwa game da isa samfuran lafiya ga ajalin. Muna amfani da shari'ar plywood \ / pallets, akwatin katako mai fa'ida kyauta don samfuran samfuri masu dacewa saboda abubuwan da suka dace da su shine assur

Al6xn wani seprenitic bakin karfe tare da fitattun juriya ga chloride pittroation, vervice lalata da damuwa ciwon jiki. Al6xn shine 6 na Aloly Alloy wanda aka inganta don kuma ana amfani dashi a cikin mahalli mai tsauri. Yana da babban nickel (24%), mlybdenum (6.3%), nitrogen da chromium m crossion crosros crossion crosros, chloride m jonishration, da kuma na kwarai na lalata juriya. Al6xn an yi amfani da shi da farko don inganta rikicewa da ganyayyaki lalata juriya a cikin chlawed. Yana da sinadari mai kyau da walwala.

Don aikace-aikacen Mill na takarda da ke buƙatar ƙananan ƙwayoyin kuɗi waɗanda ba su da isasshen juriya na lalata. Dangane da abun ciki na 22% na cromium, suna da Austenitic: ferritic microstructure wanda ke samar da babbar ƙarfi da juriya da lalata da tasiri.

An tsara faranti ta hanyar ci gaba da mirgina da kuma, a mafi yawan lokuta, karfe yana yin birgima a cikin faranti na ƙarshe. Akin zuwa karfe faranti, an manta da gyaran zobe a cikin tsari ¨c ta bambanta kawai cikin hanyoyin mirgina.

Masana'antu mai zafi
SS 316 Tefleslesleslesleslesleslesless TP312 TP316 Welded PIPE mai kaya a China
Sonoy
Hakkin mallaka © Zhengzhou Huitong bututun kayan aiki Co., LTD
Babban ingancin flangesastm A350 LF3 2 Makafi 150 don haka rf flange
Ya tashi fuskar zoben zobe da dogon wancin walkiya
Carbon Karfe Flan Wn Flani RF B16.5 Class 300 Flani 600 Flani
Din125 N08367 Cikakken Yanayi bakin karfe 1-2 Washer N08367 Washer
Incoloy 800ht enbows don sarrafawa da kuma petrochemical
C2000 Saukakkar C2000 Duk da haka allon tubgar kira C2000 na CIPE
Astm Asme SB 164 Monel 400 zagaye bar bars und n04400 nickel alloy mashaya
Samar da daidaitaccen Asme B36.10 Asme B36.19

GASKIYA AS 677 Super Austenitic Al 6xn sune Super Austenitic, wanda aka yi daga wani oyoy wanda ya ƙunshi iyakantaccen abun ciki na Chromum, nickel da molybdenum. GASKIYA AL 67KAN YI tsayayya da cutar cututtukan danniya. GASKIYA AL6xN an yi su ne daga wani abu mai ƙarfe-oyenitic wanda ya tsuda lalata cututtukan cututtukan gizagizai, kwari mai lalata, cututtukan cututtukan jiki, cututtukan cututtukan jiki. Hakanan yana da tsayayya wa alkaline da mafita na gishiri, yana kare kayayyaki daga gurɓataccen karfe kuma suna hana lalata a cikin tsarin isar da ruwa.

Ana amfani dashi sosai a cikin yanayin bincike da gas da gas kuma a cikin masu musayar zafi a cikin petrochemical \ / sarrafa sunadarai.

SaikelDB2 shine tushen Nickel wanda ya yi amfani da rijiyar juriya ga hydrochloric acid a duk kudaden da yanayin zafi. Sabili da haka, yana da juriya da juriya ga juriya na lalata da kuma lalata lalata. Hakanan yana da tsayayya wa hydrogen chloride, acid acid, acetic acid da phosphororic acid. Hanyoyi B-2 aji ne na sauri ?, Wani nickel-molybdenum. Akwai maki da yawa daban-daban na sauri ?, Cika da B-2. Da sauri? maki ana inganta su don takamaiman aikace-aikace. molybdenum

Allioy 800 shine nickel-baƙin ƙarfe-chromium rehoy tare da ƙarfi da kuma kyakkyawan jure hadawan abu da iskar shaka da lalata a yanayin zafi a babban yanayin zafi. Astm B407 Unguwa N08800 incoloy 800 W. NR. 1.4876 ALDEDEDEDed bututu ana amfani da shi sosai don gina kayan aiki suna buƙatar juriya na lalata, ƙarfin yanayin zafi, ƙarfi, ƙarfi, ƙarfi da kwanciyar hankali don sabis har zuwa 1500 ° C).
M 718 wani Nickel ne-chromium-tushen allurai wanda ake amfani dashi a cikin manyan aikace-aikace na babban-matsakaici kamar turbues da gas turnes. Ofaya daga cikin mahimman abubuwan da ke haifar da samar da Astm B670 Cikin Cikin Tsarin M.18 shine farantin mura. Akwai manyan nau'ikan farantin m 718 suna samuwa a kasuwa: zafi birgima da sanyi mirgine faranti.
Flani wani yanki ne mai mahimmanci, lebe ko rim, ko dai waje ko na ciki, wanda ke bauta don haɓaka ƙarfi (kamar yadda flanging na katako na baƙin ƙarfe kamar i-katako ko t-katako); Don sauƙaƙe abin da aka makala \ / Canja wurin karuwa tare da wani abu (azaman flanger a ƙarshen bututu, silinda yake silima, da sauransu, ko a kan Dutsen ruwan tabarau); ko don inganta da kuma jagorantar motsin injin ko sassan sa (kamar yadda ke cikin motar dogo ko tafiye tafiye, wanda ke kiyaye ƙafafun daga gudu daga gudu. Hakanan ana amfani da kalmar "flani" don wani nau'in kayan aiki da ake amfani da shi don samar da flanges.

304 pooling spools ana yin shi ne da karfe 304, gama gari da shahararrun abubuwa a aikace-aikacen masana'antu da yawa waɗanda ke buƙatar juriya ga lalata da hadawa. Wadannan prooling pooling spools suna da profabricated ta amfani da ingar amfani da kayan masarufi da matakai, wanda tabbatar da cewa suna daidai da abin dogaro.

Nilo Aloy 36, W.NR 1.3912, Haɗin kai-baƙin ƙarfe ne, faɗaɗa nichoon wanda ya ƙunshi kashi 36% kuma yana da ƙimar haɓakawa na goma da goma.

Wannan shi ne abin da ke sa 316 SS bututun da ya dace don aikace-aikace kamar farashin famfo, bawuloli, trivel da takarda masu guba, ɓangare, da aikace-aikace, da aikace-aikacen miku.

Muna ba da ɗimbin ɗimbin ɗakunan motsa jiki a cikin wulakanci 105 carbon karfe flanges da aka yi don bin ka'idodi da amincin ƙasa.

Astm A403 WP304L An sanya Elbows tsakanin tsawon bututu biyu don ba da damar canjin shugabanci. Yawancin lokaci akwai tare da 90¡Ã ko 45¡Ã ko 45¡Ã ko kuma bends ", lanƙwasa 40 ko" 45 ells "Elbows" els "elwows suna kuma rarrabe ta da tsawon. Dogon radius vebows suna da radius na curvature wanda yake sau 1.5 a cikin bututun diamius na diamius daidai da radius daidai yake da bututun diamius. Astm A403 WP30l shine mafi kyawun abu da kuma m iyali ado Alloy, ingantacce ne saboda aikace-aikacen kasuwanci da na gida.

Bakin karfe 317l rrtj flange yana da zobba biyu kamar yadda aka haɗa da bututun ta hanyar waldi. Kamar dai sld selnes selnes, SS 317 \ / 317l Wleck Wuya flangen yana da wuyan wuya a kan hanyar sadarwa.

Astm A320 kusoshi sun dace da ƙarancin zafin jiki zuwa -150¡ula kuma suna da ƙarancin ƙimar Charla na 20-ft-lbf a wannan zazzabi. Astm A320 HEX Bolts dole ne ya sami karkowar da sabis na babban zazzabi ko matsin lamba da lalata tsayayya da ƙarfe. Astm A320 ingar kusoshi suna samuwa a cikin girma dabam da kuma tsarinmu Ashe l7 kamar yadda aka yi amfani da shi a kasuwa saboda ƙayyadaddun abubuwan da suke ɗauka da bayanai.

Monel 400 Bolt shine nickel-tagulla riguna alloy, wani bayani mai gina jiki Nickoy wanda zai iya taurara da aikin sanyi. An san shi da juriya na lalata da ke lalata da ruwan sama da ruwan teku, bonel 400 kuma mai baugher fiye da ƙarfe na ƙarfe. Monel 400 Kogts, wanda kuma aka sani da Alingy 400, ana amfani dashi a cikin zazzabi mai kyau, caustic da gishiri.

A 316 Bakin Karfe PIPE ya zama kayan da ba makawa ga ɓangaren masana'antu. Wannan yana yin farin ƙarfe na baƙin ƙarfe da kuma chrome an san shi ne saboda babban juriya ga lalata, kazalika da karkatarwar sa. 316 Bakin karfe Tushewar za'a iya samar da su a duka baby da ba da haske don biyan takamaiman bukatun abokin ciniki.

Inziki (Nickel-Chromium-Chromium-Chrisium-Chinadan kayan aiki ne don aikace-aikacen kwamfuta waɗanda ke buƙatar juriya ga lalata da zafi. Alloy kuma yana da kyakkyawan kayan aikin injiniyoyi kuma suna gabatar da haɗakar da abin da ake so da aiki mai kyau.

Nickel 200 flanges flanges na nickel 200 flanges sagewa ne, gyara da tsayayye, kuma ku sami lafiya. Haka kuma, Astm B564 asa mara nasara flanges flashe ne a cikin tsaka tsaki da oxidizing, sa su zama cikakke don amfani da kayan aiki na abinci.
Inciy 800h flangang
Bakin ƙarfe
Fotigal
Indonesiyan
Zabi Harshe
Ya kasance ƙarshen, bayyane "
Titanium Tushin Tushen Tsara
Sanduna na karfe & sanduna
Astm A335 P5, P9, P11, P12, P22, P91, P935
Bakin karfe Al-6xn Tube RB 676 en un unz unzing n08367 tubing
Incoloy 800ht 1.4959 Karfe zanen karfe na siyarwa

Mafi Girma Chromium, Molybdenum da ke haifar da haifar da juriya daidai da lambar Austenitic da Duplex bakin ruwa mai mahimmanci a sama kusan 50¡aya.

Manufofin masu tsayayya da saurin saurin sauri suna amfani da su ne da masana'antar sarrafa sinadarai. Bukatar ingantaccen aiki tana haifar da karbara da ci gaban su a bangarorin makamashi, lafiya da gas, man gas da masana'antar Gas na Gas.

Wanda ba a san tantance ba (Ashem F51) da unp2205 (1.4462, Astm F60). Wannan yana nuna sha'awar su kara lalata kayan lalata na kayan ado, godiya ga ci gaban aikin AOD, wanda ke ba da damar sarrafa abun da ke ciki. Bugu da kari, yana ba da damar tasiri matakin nitrogen matakin maimakon kawai kasancewa a matsayin asalin asalin. Sabili da haka, mafi girman maki na Duplex suna neman ƙara yawan abubuwan Chromum (cr), Molybdenum (mo) da nitrogen (n).

Wannan incioloy 800ht kwamitin ya inganta kan kadarorin zazzabi. Idan muka yi magana game da taurinsa, wannan asme sb409 N0809 N08811 mashaya ya zo da taushi, kwata-kwata, da wuya, waɗannan faranti suna da kaddarorin na inji da keɓaɓɓu.

Nickel tushen 800 incoloy pipe an san shi da kyau da lalata ga lalata. Ainihin magana, wanda ke cikin Incoloy 800 bututu yana ba da isasshen juriya game da carburitization duka da lalata hadawa da iskar shaka.

An san wasu bututu na B2 da aka sani don kyakkyawan juriya na sunadarai, sun dace da matsanancin matsin lamba da kuma yawan zafin jiki da kuma babban zazzabi.

Ana bayyanar da COIL 625 ta hanyar da ta yi kyau game da juriya ga hadawa, m lalata lalata da gajiya. Astm b443 uns n06625 an yi amfani da farantin m farantin, kayan aikin sunadarai da ƙura saboda ƙarfinsa ko da taurin kai.
Bakin karfe filaye
Bakin ƙarfe
Fotigal
Indonesiyan
Zabi Harshe
Ya kasance ƙarshen, bayyane "
HT 90 degrree ASM A815 AN A803 AN S31803 SC 160 Elbows
Sanduna na karfe & sanduna
Astm A335 P5, P9, P11, P12, P22, P91, P935

Muna ba da ɗimbin ɗimbin ɗakunan motsa jiki a cikin wulakanci 105 carbon karfe flanges da aka yi don bin ka'idodi da amincin ƙasa.

Girman kai 36® nickel-baƙin ƙarfe ne, ƙaramin bayanihonan da ya ƙunshi 36% Nickel - 500 ° C).

Alloy400 mai ingantaccen bayani ne guda ɗaya ni-cu ado tare da mafi kyawun lalata cututtuka a cikin manyan wuraren marine da kuma suna da 'yanci daga chloride jawo damuwa-clrode jawo damuwa-clossion jawo damuwa-croside jawo damuwa.

316l 1.4401 S31603 bututun karfe mai yawa wanda aka saba amfani dashi a aikace-aikacen masana'antu da kasuwanci. Wannan ss esp unpe s31603 an yi shi ne daga ingancin karfe 316l karfe tare da kyakkyawan farin ƙarfe ga lalata wurare ko aikace-aikacen zartarwar damuwa.

Alloy da bututun ƙarfe na bakin karfe suna da kyau don aikace-aikacen masu inganci, waɗanda aka zaɓa don tsadar su, da machinble, da kuma jingin jiki masu lalata. Muna samarwa kayan don masana'antu daban-daban kamar: sarrafa abinci, makamashi, gyara tsiro, da mai binciken mai da gas.

Bakin ciki bututun ƙarfe 316l 1.4401 s31603 bututun karfe