SS347H thiab SS321yog austenitic stainless hlau, tshwj xeeb tshaj yog muaj siab -kub corrosion kuj thiab weld stability, thiab yog dav siv nyob rau hauv tshuaj, zog, aerospace, thiab zaub mov kev lag luam. HT PIPE yog ib tug thawj coj stockist thiab exporter thoob ntiaj teb nrog ntau tshaj 16 xyoo ntawm kev txawj ntse nyob rau hauv thoob ntiaj teb kev lag luam. Peb muab cov kav dej, daim hlau, cov kab tuav, thiab ntau yam ntawm cov yeeb nkab fittings, flanges, thiab li qub.Tiv tauj pebtam sim no rau cov quotes dawb thiab cov ntaub ntawv khoom ntiag tug.
SS347H thiab SS321Tshuaj muaj pes tsawg leeg
| Tshuaj muaj pes tsawg leeg | SIB 321 | SWB 347H |
|---|---|---|
| Chromium (Cr) | 17.0%-19.0% | 17.0%-19.0% |
| Nickel (Ni) | 9.0%-12.0% | 9.0%-13.0% |
| Stabilizing Element | Titanium (Ti) Ntau dua lossis sib npaug li 5 × C% thiab Tsawg dua lossis sib npaug rau 0.70% | Niobium (Nb) + Tantalum (Ta) Ntau dua lossis sib npaug rau 8 × (C + N)% thiab Tsawg dua lossis sib npaug rau 1.0% |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.08% | 0.04%-0.10% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.0% | Tsawg dua lossis sib npaug li 2.0% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.0% | Tsawg dua lossis sib npaug li 0.75% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045% | Tsawg dua lossis sib npaug li 0.03% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.045% | Tsawg dua lossis sib npaug li 0.03% |
SS347H thiab SS321Mechanical Properties
| Mechanical Properties | Kev kuaj mob | SIB 321 | SWB 347H |
|---|---|---|---|
| Tensile zog | 20℃(Chav Kub) | Ntau dua lossis sib npaug li 515MPa | Ntau dua lossis sib npaug li 515MPa |
| Yield zog | 20℃(Chav Kub) | Ntau dua lossis sib npaug rau 205MPa (Ntau dua lossis sib npaug rau 550MPa tom qab ua haujlwm txias) | Ntau dua lossis sib npaug li 205MPa |
| Elongation | 20℃(Chav Kub) | Ntau dua lossis sib npaug li 40% (≈15% tom qab ua haujlwm txias) | Ntau dua lossis sib npaug li 40% |
| Hardness | 20℃(Chav Kub) | HB Tsawg dua lossis sib npaug rau 201 | HB Tsawg dua lossis sib npaug rau 201 |
| Lub zog Retention Rate | 600℃(siab kub) | Kwv yees li 80%; Lub zog yuav txo qis thaum siv ntau dua 800℃rau lub sijhawm ntev | Ntau dua lossis sib npaug li 85%; zoo heev creep kuj |
| Siab -Tub kub Service Capacity | Ntev - lub sij hawm siab - qhov kub thiab txias ib puag ncig | Tiv thaiv qhov kub tsis sib xws; titanium oxidation yog nquag tshwm sim saum 800 degree | Muaj peev xwm ua haujlwm ntawm 800-900℃rau lub sijhawm ntev uas tsis muaj qhov pom tseeb lub zog lwj |
| Chav ntsuas kub ua haujlwm sib txawv | 20℃(Chav Kub) | Yeej zoo ib yam nrog SS347H | Me ntsis zoo toughness dua SS321 tom qab txias ua hauj lwm |
SS347H thiab SS321Kev sib piv Corrosion Resistance
Intergranular Corrosion Resistance
Qauv TSIS MUAJ: SS321Stabilized nrog titanium, nws zoo inhibits chromium carbide nag lossis daus hauv rhiab heev ntawm 450-850 degree. Kuaj raws li ASTM A262 Practice E tus qauv, tus nqi corrosion yog<0.5mm/year, and it maintains good corrosion resistance after welding.
Qauv TSIS MUAJ: SS347HStabilized nrog niobium, nws muaj superior tiv thaiv intergranular corrosion. Nyob rau hauv 800-1500℃F (427-816 degree) ntau yam, tus nqi corrosion yog qis dua SS321, thiab nws tsis kam mus rau polysulfide kev nyuaj siab corrosion cracking yog zoo heev.
Siab -Tub kub Oxidation thiab Media Adaptability
Qauv TSIS MUAJ: SS321Thaum lub sijhawm ua haujlwm tas li ntawm 800 degree, Cr2O3-TiO2 puas oxide zaj duab xis ua rau ntawm qhov chaw. Tom qab 1000 teev ntawm qhov raug, oxidation hnyav nce yog<2mg/cm². It is suitable for media such as dilute nitric acid and acetic acid, but has a higher corrosion rate in reducing acids (such as hydrochloric acid).
Qauv TSIS MUAJ: SS347HMuaj kev muaj zog dua -kub oxidation kuj. Nws ua tau zoo dua li SS321 hauv qhov muaj zog oxidizing ib puag ncig ntawm 1500℃F (816 degree). Nws yog tsim rau hnyav xov xwm xws li nitric acid ntau lawm thiab roj refining. Nws cov pitting kuj sib npaug (PREN) yog siab dua me ntsis SS321.
SS347H thiab SS321Kev sib piv ntawm Machining thiab Welding Performance
Machining Performance
Qauv TSIS MUAJ: SS321Titanium nce cov khoom toughness. Kev txiav ceev yuav tsum yog 15-20% qis dua 304 stainless hlau. Carbide-cov cuab yeej coated yuav tsum tau. Nws muaj qhov ua haujlwm txias-ua haujlwm zoo, tab sis tsis zoo polishing kev ua haujlwm, ua rau nws tsis tsim nyog rau cov ntaub ntawv kho kom zoo nkauj.
Qauv TSIS MUAJ: SS347HNiobium muaj kev cuam tshuam me me rau kev ua haujlwm, nws cov kev txiav, stamping, thiab forging cov khoom zoo ib yam li 304 stainless hlau, yuav tsum tsis muaj kev hloov pauv tseem ceeb rau cov txheej txheem machining. Nws kuj nthuav tawm kev ua haujlwm nruab nrab hardening, ua rau muaj kev ua haujlwm siab dua hauv kev ua haujlwm tom ntej.
Vuam Performance
Qauv TSIS MUAJ: SS321Titanium tau yooj yim hlawv tawm ntawm qhov kub thiab txias thaum lub sij hawm vuam, yuav tsum tau inert gas shielded vuam. ER321 vuam hlau raug pom zoo, thiab qhov kub ntawm qhov sib cuam tshuam yuav tsum tau tswj ntawm Tsawg dua lossis sib npaug li 150 degree. Kev kho tshuaj yog pom zoo tom qab vuam tuab daim hlau.
Qauv TSIS MUAJ: SS347HNiobium tshwm sim tsawg dua hlawv-tawm thaum vuam, ua rau muaj zog vuam ruaj khov. Tsis muaj qhov nyuaj tshaj tawm -weld kho yog yuav tsum tau, nws tuaj yeem ncaj qha welded. Tsis tas li ntawd, niobium tuaj yeem raug xa mus los ntawm qhov siab -kub arc, ua rau weld zoo tswj tau yooj yim dua thiab tsim nyog rau vuam cov qauv.
