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China, Chinese Lork Feni44 Fixed Expansion Sealing Fe-Ni-Co Alloy Tube for Vacuum Transmitter 4j44 Precision Alloy Pipe1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Magnetic MaterialOther Magnetic MaterialPrecision Alloy 4j444j50 Pipe/Tube
LORK GROUP CO., LTD
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Product Description Product Description IntroductionLORK is a alloy manufacturer with 20 years of manufacturing experience.Features: Constant expansion iron-nickel-cobalt alloy, with a certain linear thermal expansion coefficient in the range of 20°C~400°C.Uses: Used to make iron-nickel-cobalt alloy strips, bars, plates, and tubes that match and seal with hard glass.Suitable for transmitting tubes, oscillating tubes, ignition tubes, transistors, tube sealing plugs, relay housings and other electric vacuum devices.It has a certain linear expansion coefficient within the temperature range of 20oC-450oC and can match and seal with hard glass firmly.4J44 Chemical Composition (%) TypeCPSMnSiCuCrMoNiCoFe<= 4J440.030.020.020.50.30.20.20.234.2~35.28.5~9.5Bal 4J44 Coefficient of Thermal Expansion TypeCoefficient of Thermal Expansion (a/10-6 K-1)20-300oC20-400oC20-450oC4J444.3~5.14.6~5.2 -- 4J44 Tensile StrengthTypeTensile Strength (Rm/MPa)Soft<=570H1/4520~630H1/2590~700H3/4600~770H>=700 DetectionProcessing Packaging & ShippingCompany ProfileFAQQ1: Do you accept the trial order ?A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .Q2: Can I have free sample before making orders?A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.Q3: How do you control the quality ?A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .Q4: How about your delivery time ?A4: Generally delivery time is 15 working days .Q5: How can I quickly get the price list ?A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .
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