{"product_id":"flag-style-sample-holder-plates","title":"Flag Style Sample Holder Plates for UHV, Cryo \u0026 High-Temperature Applications","description":"\u003cp\u003eFlag Style Sample Holder Plates are designed for demanding scientific, vacuum, cryogenic, and high-temperature applications. Typical uses include sample mounting in UHV chambers, heating stages, cryogenic systems, surface science experiments, MBE systems, and other precision scientific equipment where cleanliness, dimensional stability, thermal performance, and material compatibility are critical.\u003c\/p\u003e\n\u003cp\u003eA wide range of materials is available to optimize thermal conductivity, chemical resistance, magnetic behavior, oxidation resistance, mechanical stability, and vacuum performance for specific experimental requirements.\u003c\/p\u003e\n\u003ch2\u003eHigh-Vacuum Cleaning for UHV Use\u003c\/h2\u003e\n\u003cp\u003eAll sample holder plates are delivered HV-cleaned and packaged to minimize surface contamination.\u003c\/p\u003e\n\u003cp\u003eThe supplied HV-cleaned condition provides a technically sound starting point for UHV applications. Additional bake-out procedures may be performed as part of the customer's standard vacuum preparation process.\u003c\/p\u003e\n\u003ch2\u003eMaterial Options\u003c\/h2\u003e\n\u003ch3\u003eStainless Steel (304 \/ 316L)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eX5CrNi18-10 1.4301 (AISI 304)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eX2CrNiMo17-12-2 1.4404 (AISI 316L)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood mechanical strength\u003c\/li\u003e\n\u003cli\u003eExcellent corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCost-effective and widely available\u003c\/li\u003e\n\u003cli\u003eUsually non-magnetic when fully annealed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStainless steel is the standard choice for room-temperature vacuum systems and general scientific hardware. When properly cleaned and vacuum-prepared, 304 and 316L grades perform well in HV and UHV environments.\u003c\/p\u003e\n\u003cp\u003eBecause of their relatively high thermal expansion and low thermal conductivity, stainless steels are generally not preferred for strongly heated or cryogenic sample stages.\u003c\/p\u003e\n\u003ch3\u003eOxygen-Free High Conductivity Copper (CW009A Cu-OFE 2.0040, C10100)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent thermal conductivity\u003c\/li\u003e\n\u003cli\u003eLow outgassing\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003cli\u003eExcellent thermal coupling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCopper is ideal when efficient heat transfer between the sample and the holder is required. It performs exceptionally well in cryogenic systems, temperature-controlled experiments, and applications requiring rapid thermal equilibration.\u003c\/p\u003e\n\u003ch3\u003eGold-Plated Oxygen-Free High Conductivity Copper (CW009A Cu-OFE 2.0040, C10100)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eElectroless Nickel (Ni-P 15%) + Gold-Plated ≥1 µm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent thermal conductivity\u003c\/li\u003e\n\u003cli\u003eImproved corrosion resistance\u003c\/li\u003e\n\u003cli\u003eStable electrical contact surface\u003c\/li\u003e\n\u003cli\u003eNon-magnetic coating system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGold-plated OFHC copper combines the excellent thermal performance of oxygen-free copper with improved corrosion resistance and oxidation protection. It is frequently used for precision sample mounting and temperature-controlled experiments.\u003c\/p\u003e\n\u003ch3\u003eTitanium (Grade 2, 3.7035)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow thermal expansion\u003c\/li\u003e\n\u003cli\u003eGood corrosion resistance\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003cli\u003eLow magnetic susceptibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTitanium combines excellent corrosion resistance with good vacuum compatibility and low magnetic susceptibility. Suitable for cryogenic and elevated-temperature applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUtilizing titanium sample holders together with Type K thermocouples above approximately 942 °C may result in eutectic alloy formation and subsequent material degradation.\u003c\/p\u003e\n\u003ch3\u003eMolybdenum (Mo 99.97%)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh melting point\u003c\/li\u003e\n\u003cli\u003eHigh thermal conductivity\u003c\/li\u003e\n\u003cli\u003eVery low thermal expansion\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003cli\u003eExcellent vacuum compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMolybdenum is one of the most commonly used materials for UHV sample holders and heating applications. It combines excellent dimensional stability, efficient thermal coupling, and very low outgassing.\u003c\/p\u003e\n\u003cp\u003eIdeal for UHV, HV, cryogenic, and inert-gas environments.\u003c\/p\u003e\n\u003ch3\u003eTantalum (Ta 99.95%)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh melting point\u003c\/li\u003e\n\u003cli\u003eExcellent corrosion resistance\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003cli\u003eHigh ductility and toughness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTantalum offers exceptional chemical stability and corrosion resistance. It performs well in reactive environments, oxygen-containing atmospheres, cleanroom applications, and chemically sensitive experiments.\u003c\/p\u003e\n\u003cp\u003eA preferred choice where chemical compatibility is more important than maximum thermal conductivity.\u003c\/p\u003e\n\u003ch3\u003eTungsten (W 99.95%)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHighest melting point of all available materials\u003c\/li\u003e\n\u003cli\u003eHighest thermal conductivity\u003c\/li\u003e\n\u003cli\u003eLowest thermal expansion\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTungsten provides the highest temperature capability of all available materials and is ideally suited for directly heated samples, high-power heating stages, and extreme thermal environments.\u003c\/p\u003e\n\u003cp\u003eDue to its high stiffness and brittleness, careful handling is recommended.\u003c\/p\u003e\n\u003ch3\u003eAluminium Oxide (Al₂O₃)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent electrical insulation\u003c\/li\u003e\n\u003cli\u003eHigh-temperature capability\u003c\/li\u003e\n\u003cli\u003eChemically inert\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAluminium oxide is ideal where electrical isolation is required while maintaining excellent vacuum compatibility and thermal stability.\u003c\/p\u003e\n\u003cp\u003eCommonly used in electrically isolated sample mounting systems.\u003c\/p\u003e\n\u003ch3\u003eAluminium (EN AW-6082, 3.2315)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood thermal conductivity\u003c\/li\u003e\n\u003cli\u003eEasy machinability\u003c\/li\u003e\n\u003cli\u003eCorrosion resistant\u003c\/li\u003e\n\u003cli\u003eParamagnetic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAluminium is a practical and economical choice for room-temperature and moderately heated vacuum systems where good thermal conductivity and easy machining are desired.\u003c\/p\u003e\n\u003ch3\u003eAlloy 214 (UNS N07214, NiCrAlFe)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutstanding oxidation resistance\u003c\/li\u003e\n\u003cli\u003eExcellent thermal cycling performance\u003c\/li\u003e\n\u003cli\u003eStable aluminium oxide surface layer\u003c\/li\u003e\n\u003cli\u003eGood high-temperature mechanical strength\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlloy 214 is specifically developed for long-term operation in highly oxidizing environments. Its aluminium-rich oxide layer provides excellent resistance to scaling and oxidation at elevated temperatures.\u003c\/p\u003e\n\u003cp\u003eSuitable for oxygen-rich atmospheres, thermal processing equipment, furnace applications, and high-temperature sample mounting systems where conventional stainless steels reach their limits.\u003c\/p\u003e\n\u003ch2\u003eMaterial Selection Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral vacuum applications:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum thermal conductivity:\u003c\/strong\u003e Oxygen-Free High Conductivity Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical insulation:\u003c\/strong\u003e Aluminium Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLowest magnetic signature:\u003c\/strong\u003e Copper, Titanium, Molybdenum, Tantalum, Tungsten, Aluminium Oxide, Alloy 214\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUHV sample holders and heating stages:\u003c\/strong\u003e Molybdenum → Tantalum → Tungsten (recommended progression from standard to extreme-temperature applications)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemically aggressive environments:\u003c\/strong\u003e Tantalum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum temperature capability:\u003c\/strong\u003e Tungsten\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow thermal expansion:\u003c\/strong\u003e Tungsten, Molybdenum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-temperature operation in air or oxygen:\u003c\/strong\u003e Alloy 214\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion resistance:\u003c\/strong\u003e Titanium, Tantalum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConclusion\u003c\/h2\u003e\n\u003cp\u003eThe optimal material depends on the operating environment and application requirements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel:\u003c\/strong\u003e Cost-effective solution for general-purpose vacuum applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOxygen-Free High Conductivity Copper:\u003c\/strong\u003e Maximum thermal coupling and excellent temperature uniformity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium:\u003c\/strong\u003e Corrosion resistant and characterized by low magnetic susceptibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolybdenum:\u003c\/strong\u003e Preferred material for UHV sample holders and heating stages due to its excellent combination of thermal conductivity, low thermal expansion, dimensional stability, vacuum compatibility, manufacturability, and cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTantalum:\u003c\/strong\u003e Offers higher temperature capability than molybdenum while providing superior chemical resistance and excellent compatibility with reactive process environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTungsten:\u003c\/strong\u003e Highest temperature capability, highest thermal conductivity, and lowest thermal expansion of all available materials, making it suitable for the most demanding extreme-temperature applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy 214:\u003c\/strong\u003e Outstanding oxidation resistance for long-term operation in oxygen-rich and high-temperature environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium Oxide:\u003c\/strong\u003e Excellent electrical insulation combined with high-temperature capability and vacuum compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHigh-Temperature Applications in Vacuum\u003c\/h3\u003e\n\u003cp\u003eFor heated sample holders and heating stages operated in HV, UHV, or inert-gas environments, material selection is typically guided by both temperature capability and practical engineering considerations.\u003c\/p\u003e\n\u003cp\u003eWhile the maximum temperature capability generally increases from \u003cstrong\u003emolybdenum → tantalum → tungsten\u003c\/strong\u003e, molybdenum remains the preferred material for most high-temperature vacuum applications due to its excellent balance of thermal performance, dimensional stability, manufacturability, availability, and cost.\u003c\/p\u003e\n\u003cp\u003eTantalum is often selected when additional temperature margin, enhanced chemical resistance, or improved ductility is required. Tungsten is generally reserved for the most demanding extreme-temperature applications where maximum temperature capability outweighs increased brittleness and manufacturing complexity.\u003c\/p\u003e\n\u003cp\u003eAs a result, most scientific heating stages, sample holders, and high-temperature vacuum components are typically manufactured from molybdenum, while tantalum and tungsten are selected only when specific process requirements justify their use.\u003c\/p\u003e\n\u003cp\u003eSelecting the appropriate material ensures reliable performance, long service life, and optimum compatibility with the intended scientific or industrial process.\u003c\/p\u003e","brand":"UHV Store of Switzerland - Ultra High Vacuum Technology","offers":[{"title":"Blank — Bare plate without machining \/ Stainless steel X5CrNi18-10 1.4301 (AISI 304)","offer_id":44162831745300,"sku":"SHFS(SS304)","price":30.41,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Stainless steel X2CrNiMo18-14-3 1.4435 (AISI 316L)","offer_id":44162831876372,"sku":"SHFS(SS316L)","price":33.79,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ OFHC Copper CW009A Cu-OFE 2.0040 (C10100)","offer_id":44162832007444,"sku":"SHFS(Cu)","price":75.46,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Gold-Plated OFHC Copper CW009A Cu-OFE 2.0040 (C10100)","offer_id":48258787311892,"sku":"SHFS(Cu\/Au)","price":120.0,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Titanium 3.7035 (Grade 2)","offer_id":44162832400660,"sku":"SHFS(Ti)","price":108.13,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Molybdenum 99.97%","offer_id":44162832531732,"sku":"SHFS(Mo)","price":102.49,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Tantalum 99.95%","offer_id":44162832269588,"sku":"SHFS(Ta)","price":236.53,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Tungsten 99.95%","offer_id":45380882956564,"sku":"SHFS(W)","price":557.53,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Aluminium oxide Al₂O₃","offer_id":44162832662804,"sku":"SHFS(Al2O3)","price":214.0,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Aluminium EN AW-6082 3.2315 AlSi1MgMn","offer_id":44164186308884,"sku":"SHOM(AL)","price":58.01,"currency_code":"CHF","in_stock":true},{"title":"Blank — Bare plate without machining \/ Alloy 214 (UNS N07214) NiCrAl","offer_id":47752583872788,"sku":"SHFS(A214)","price":557.53,"currency_code":"CHF","in_stock":false},{"title":"M1.4 Square 12 mm + M1.4 Cross 12 mm (David) \/ Stainless steel X5CrNi18-10 1.4301 (AISI 304)","offer_id":51734427566356,"sku":"SHFS(SS304)-M1.4-SQR12-M1.4-CRS12","price":110.38,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Square 12 mm + M1.4 Cross 12 mm (David) \/ OFHC Copper CW009A Cu-OFE 2.0040 (C10100)","offer_id":51734427631892,"sku":"SHFS(Cu)-M1.4-SQR12-M1.4-CRS12","price":152.05,"currency_code":"CHF","in_stock":false},{"title":"M1.4 Square 12 mm + M1.4 Cross 12 mm (David) \/ Molybdenum 99.97%","offer_id":51734427730196,"sku":"SHFS(Mo)-M1.4-SQR12-M1.4-CRS12","price":186.97,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Square 12 mm + M1.4 Cross 12 mm (David) \/ Tantalum 99.95%","offer_id":51734427762964,"sku":"SHFS(Ta)-M1.4-SQR12-M1.4-CRS12","price":373.94,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Square 12 mm + M1.4 Y +6 mm (Claudio) \/ Stainless steel X5CrNi18-10 1.4301 (AISI 304)","offer_id":44183841308948,"sku":"SHOMT(ST)","price":110.38,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Square 12 mm + M1.4 Y +6 mm (Claudio) \/ OFHC Copper CW009A Cu-OFE 2.0040 (C10100)","offer_id":44183841341716,"sku":"SHOMT(CU)","price":152.05,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Square 12 mm + M1.4 Y +6 mm (Claudio) \/ Molybdenum 99.97%","offer_id":44183841440020,"sku":"SHOMT(MO)","price":186.97,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Square 12 mm + M1.4 Y +6 mm (Claudio) \/ Tantalum 99.95%","offer_id":44183841472788,"sku":"SHOMT(TA)","price":373.94,"currency_code":"CHF","in_stock":true},{"title":"Cut Circle 12 mm + M1.4 Square 12 mm (Iraida) \/ Molybdenum 99.97%","offer_id":50507328815380,"sku":"SHFS(Mo)-CUT-CIR12-M1.4-SQR12","price":280.0,"currency_code":"CHF","in_stock":true},{"title":"Cut Rectangle 12 x 0.5 mm Y -5.75 mm (Ajay) \/ Stainless steel X5CrNi18-10 1.4301 (AISI 304)","offer_id":49319559135508,"sku":"SHFS(SS304)-CUT-REC12x0.5-YN5.75","price":47.5,"currency_code":"CHF","in_stock":true},{"title":"M1.4 Rectangle 10 x 8.5 mm Y +0.5 mm (Manoj) \/ Molybdenum 99.97%","offer_id":50199321542932,"sku":"SHFS(Mo)-M1.4-REC10x8.5-YP0.5","price":186.97,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0360\/9364\/files\/SHFS_ST304_6f3fe7ac-133e-4921-af5b-3a1b60b209e8.jpg?v=1764022037","url":"https:\/\/uhvstore.com\/products\/flag-style-sample-holder-plates","provider":"UHV Store of Switzerland - Ultra High Vacuum Technology","version":"1.0","type":"link"}