{"dataset":"Valve Material Service-Temperature Limits Dataset","id":"material-temperature-limits","description":"Minimum and maximum service temperatures (deg C) for valve material grades, grouped by alloy family.","publisher":"Vajra Industrial Solutions","publisherUrl":"https://www.vajravyuh.com","sourcePage":"https://www.vajravyuh.com/resources/material-temperature-envelope","downloadUrl":"https://www.vajravyuh.com/data/material-temperature-limits.json","license":"Free to use with attribution to Vajra Industrial Solutions (vajravyuh.com)","citation":"Vajra Valve Data Commons - Material Temperature Limits Dataset, Vajra Industrial Solutions, vajravyuh.com/data","disclaimer":"Engineering reference data for valve service; indicative only. Ratings and limits depend on concentration, temperature and service conditions. Verify against the governing standard and a qualified engineer before procurement.","recordDescription":"One record per grade with parsed min/max Celsius and the verbatim rating strings.","fields":["slug","astm","commonName","alloyFamily","minC","maxC","minRating","maxRating","cryogenic","highTemp"],"recordCount":43,"records":[{"slug":"a216-wcb","astm":"ASTM A216 WCB","commonName":"Carbon Steel WCB","alloyFamily":"Carbon Steel","minC":-29,"maxC":538,"minRating":"−29°C (−20°F)","maxRating":"+538°C (+1000°F)","cryogenic":false,"highTemp":false},{"slug":"a105","astm":"ASTM A105","commonName":"Forged Carbon Steel A105","alloyFamily":"Carbon Steel","minC":-29,"maxC":538,"minRating":"−29°C (−20°F)","maxRating":"+538°C (+1000°F)","cryogenic":false,"highTemp":false},{"slug":"a216-wcc","astm":"ASTM A216 WCC","commonName":"Carbon Steel WCC","alloyFamily":"Carbon Steel","minC":-29,"maxC":538,"minRating":"−29°C (−20°F)","maxRating":"+538°C (+1000°F)","cryogenic":false,"highTemp":false},{"slug":"a352-lcc","astm":"ASTM A352 Grade LCC","commonName":"Low Temperature Carbon Steel LCC","alloyFamily":"Carbon Steel","minC":-46,"maxC":345,"minRating":"−46°C (−51°F)","maxRating":"+345°C (+650°F)","cryogenic":false,"highTemp":false},{"slug":"a350-lf2","astm":"ASTM A350 Grade LF2","commonName":"Low Temperature Forged Carbon Steel LF2","alloyFamily":"Carbon Steel","minC":-46,"maxC":345,"minRating":"−46°C (−51°F)","maxRating":"+345°C (+650°F)","cryogenic":false,"highTemp":false},{"slug":"a352-lcb","astm":"ASTM A352 LCB","commonName":"Low Temperature Carbon Steel LCB","alloyFamily":"Carbon Steel","minC":-46,"maxC":343,"minRating":"−46°C (−50°F) - Charpy impact tested","maxRating":"+343°C (+650°F)","cryogenic":false,"highTemp":false},{"slug":"a182-f91","astm":"ASTM A182 F91","commonName":"P91 Chrome-Moly (9Cr-1Mo-V)","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-18,"maxC":650,"minRating":"−18°C - limited toughness at low temperature","maxRating":"+650°C (+1200°F) - supercritical and USC plants","cryogenic":false,"highTemp":true},{"slug":"a217-c12a","astm":"ASTM A217 C12A","commonName":"Grade 91 Cast Steel (C12A)","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-29,"maxC":650,"minRating":"-29°C (-20°F)","maxRating":"+650°C (+1200°F)","cryogenic":false,"highTemp":true},{"slug":"a217-wc6","astm":"ASTM A217 Grade WC6","commonName":"1¼Cr½Mo Alloy Steel WC6","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-29,"maxC":595,"minRating":"−29°C (−20°F)","maxRating":"+595°C (+1100°F)","cryogenic":false,"highTemp":true},{"slug":"a217-wc9","astm":"ASTM A217 WC9","commonName":"Chrome-Moly WC9 (2.25Cr-1Mo)","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-18,"maxC":593,"minRating":"−18°C (0°F) - limited low-temp toughness","maxRating":"+593°C (+1100°F)","cryogenic":false,"highTemp":true},{"slug":"a182-f22","astm":"ASTM A182 F22 (2¼Cr-1Mo)","commonName":"F22 Chrome-Moly Alloy Steel","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-29,"maxC":593,"minRating":"−29°C (−20°F)","maxRating":"+593°C (+1100°F)","cryogenic":false,"highTemp":true},{"slug":"a182-f5","astm":"ASTM A182 F5","commonName":"5Cr-0.5Mo Alloy Steel (Grade F5)","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-29,"maxC":593,"minRating":"−29°C (−20°F)","maxRating":"+593°C (+1100°F)","cryogenic":false,"highTemp":true},{"slug":"a182-f11","astm":"ASTM A182 F11","commonName":"1.25Cr-0.5Mo Alloy Steel (F11)","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-29,"maxC":540,"minRating":"-29°C (-20°F)","maxRating":"+540°C (+1000°F)","cryogenic":false,"highTemp":true},{"slug":"a217-wc11","astm":"ASTM A217 WC11 (1¼Cr-½Mo)","commonName":"WC11 Chrome-Moly Alloy Steel","alloyFamily":"Chrome-Moly / Alloy Steel","minC":-29,"maxC":538,"minRating":"−29°C (−20°F)","maxRating":"+538°C (+1000°F)","cryogenic":false,"highTemp":false},{"slug":"a351-hh","astm":"ASTM A351 HH","commonName":"25Cr-12Ni Heat-Resistant Casting (Grade HH)","alloyFamily":"Stainless Steel","minC":-10,"maxC":1100,"minRating":"−10°C (not for cryogenic service)","maxRating":"+1,100°C (+2,012°F)","cryogenic":false,"highTemp":true},{"slug":"a182-f316l","astm":"ASTM A182 Grade F316L / UNS S31603","commonName":"Stainless Steel 316L (Low Carbon Forged)","alloyFamily":"Stainless Steel","minC":-196,"maxC":870,"minRating":"−196°C (−321°F)","maxRating":"+870°C (continuous) / +925°C (intermittent)","cryogenic":true,"highTemp":true},{"slug":"a182-f347","astm":"ASTM A182 F347","commonName":"Stabilised 347 Stainless Steel (Forged F347)","alloyFamily":"Stainless Steel","minC":-196,"maxC":816,"minRating":"−196°C (−321°F)","maxRating":"+816°C (+1500°F)","cryogenic":true,"highTemp":true},{"slug":"a182-f304","astm":"ASTM A182 F304","commonName":"304 Stainless Steel (Forged F304)","alloyFamily":"Stainless Steel","minC":-196,"maxC":538,"minRating":"−196°C (−321°F) for cryogenic service","maxRating":"+538°C (+1000°F)","cryogenic":true,"highTemp":false},{"slug":"a351-cf8","astm":"ASTM A351 CF8","commonName":"Cast 304 Stainless Steel (CF8)","alloyFamily":"Stainless Steel","minC":-254,"maxC":538,"minRating":"−254°C (−425°F) for cryogenic service","maxRating":"+538°C (+1000°F)","cryogenic":true,"highTemp":false},{"slug":"a351-cf8m","astm":"ASTM A351 CF8M","commonName":"SS 316 Cast (CF8M)","alloyFamily":"Stainless Steel","minC":-254,"maxC":454,"minRating":"−254°C (cryogenic capable)","maxRating":"+454°C (+850°F) continuous; +816°C (+1500°F) for Type 316H","cryogenic":true,"highTemp":false},{"slug":"a182-f316","astm":"ASTM A182 F316","commonName":"Forged SS 316 (F316)","alloyFamily":"Stainless Steel","minC":-254,"maxC":454,"minRating":"−254°C (cryogenic)","maxRating":"+454°C","cryogenic":true,"highTemp":false},{"slug":"a182-f304l","astm":"ASTM A182 F304L","commonName":"F304L Low Carbon SS (Forged)","alloyFamily":"Stainless Steel","minC":-196,"maxC":425,"minRating":"−196°C (−320°F) - 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no embrittlement","maxRating":"+800°C (+1470°F) as deposited hard-face layer","cryogenic":true,"highTemp":true},{"slug":"ductile-iron","astm":"ASTM A395 / ISO 1083 GGG-40","commonName":"Ductile Iron (Nodular Cast Iron)","alloyFamily":"Non-Ferrous","minC":-20,"maxC":350,"minRating":"−20°C (−4°F)","maxRating":"+350°C (+660°F)","cryogenic":false,"highTemp":false},{"slug":"titanium-gr2","astm":"ASTM B265 Gr 2 / ASTM B337 / UNS R50400 (Titanium Grade 2)","commonName":"Titanium Grade 2 (Commercially Pure)","alloyFamily":"Non-Ferrous","minC":-196,"maxC":315,"minRating":"−196°C (−321°F)","maxRating":"+315°C (+600°F)","cryogenic":true,"highTemp":false},{"slug":"naval-brass","astm":"ASTM B62 / C83600 Gunmetal / Naval Brass","commonName":"Naval Brass / Gunmetal (Bronze)","alloyFamily":"Non-Ferrous","minC":-196,"maxC":260,"minRating":"−196°C (−320°F) - no embrittlement at cryogenic temperatures","maxRating":"+260°C (+500°F) - de-rate for steam above 150°C","cryogenic":true,"highTemp":false},{"slug":"ptfe-lined","astm":"PTFE / FEP Lining (ASTM D1457 / BS 6564)","commonName":"PTFE / FEP-Lined Valves","alloyFamily":"Non-Ferrous","minC":-40,"maxC":200,"minRating":"−40°C (−40°F)","maxRating":"+200°C (+392°F) for PTFE","cryogenic":false,"highTemp":false}],"skippedGrades":[]}