what is the astm material suitable for cryogenic application
Under the practical use environment of most cryogenic applications even a single-material system can still be a complex insulation system (1-3). 2 To determine the inherent thermal properties of insulation materials, the standard test methods as cited in this guide should be consulted. BOLTING MATERIAL ASTM SPECIFICATIONS(9) Bolting materials suitable for high-temperature service with austenitic stainless steel valve materials. (10) Nuts may be of the same material or may be of compatible grade of ASTM A194. (11) Forging quality not permitted unless the producer last heating or working these parts tests them as required for other permitted conditions
Therefore, it is a key for design and manufacturing to select suitable body materials according to the lowest working temperature of the cryogenic valve. Refer to the following table for the lowest working temperature of bady materials. The low temperature materials shall be subjected to low temperature impact test according to standard Flexible Industrial and Commercial Insulation for Sub cold cycling and cryogenic applications. Cryogel Z incorporates an integral vapor operations makes it suitable for pre-insulation and modular builds Increased labor productivity and faster installation rates ASTM C1338 Fungal Resistance of Insulation Materials No Growth ASTM C1617 Corrosiveness to Foster 40-10 Technical Data Sheet - INSUL-THERMspecific chemical resistance applications. It is suitable for application to polyurethane foam, polyisocyanurate (PIR) foam, cellular glass and fibrous glass insulations in conjunction with aluminum, steel, wood and masonry construction materials. Cryogenic Coating has excellent resistance to moisture, water vapor and other gases.
Some typical cryogenic applications for nonmetallic materials of construction can be separated into five classifications:1. Reinforced plastic structures. 2. Adhesives, sealants, and coatings. 3. Bearings and dynamic seals. 4. Gaskets and static seals. 5. Film materials used as diaphragms, vapor barriers, etc. Publication No 4368 - Nickel Institute4262 Materials for cryogenic service - 3½, 5 & 9% nickel steels & 36% nickel-iron alloy:engineering properties. Conversion factors for stress units Because of the variety of metric and non-metric units employed for stress values, and the possibility of further changes, conversion factors are given below for the SCIENTIFIC AND TECHNICAL INFORMATIONThe three materials tested were 60% cold-rolled (CR) type 301 stainless steel sheet, modified by the addition of 0. 15% nitrogen (both of these steels contain- ing approximately 17% chromium and 7% nickel), and 75% CR type 310 stainless steel sheet (25% chromium and 20% nickel), all 0. 020-in. thick.
Safety valves and fittings for cryogenic applications MATERIAL SPECIFICATION SUITABLE FOR EXAMPLES OF USE Liquids neutral and non-neutral neutral and non-neutral Connection type for pipes according to ASTM A312 S40 D 13,72 17,15 21,34 26,67 33,40 42,16 48,26 60,33 TECHNICAL WHITEPAPER Low Temperature Properties of As with high temperature applications, it is immediately evident from the chart that as the specified service temperature decreases then the number of possible and suitable plastics materials also rapidly decreases. At room temperature the designer can choose from almost any of VALVE MATERIALS & SERVICE APPLICATIONSVALVE MATERIALS & SERVICE APPLICATIONS Valve Casting Materials ASTM Casting Specification Common Designation Service Applications ASTM A216 Grade WCB Suitable for temperatures -50ºF and not above 650ºF (-46ºC and not above 343ºC). A352-LCB A182-F11 CL2 1 % Cr, % Mo Alloy Steel
Under the practical use environment of most cryogenic applications even a single-material system can still be a complex insulation system (1-3). 2 To determine the inherent thermal properties of insulation materials, the standard test methods as cited in this guide should be consulted.