ASTM A182 Forged Alloy & Stainless Fittings Standard
Engineering definition, metallurgical mechanisms, standard testing specifications, and manufacturing guidelines for closed-die forgings up to 50 kg.
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Standard specification for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves for high-temperature service.
Technical Explanation & Metallurgical Principles
ASTM A182 (ASME SA182) governs the chemical composition, tensile criteria, heat treatment, and grain size for forged martensitic, low-alloy (F11, F22, F91), austenitic (F304, F316, F321, F347), and duplex stainless steels (F51, F53).
Key Engineering Specifications & Parameters
| Technical Parameter / Metric | Engineering Benchmark / Value |
|---|---|
| Material Classes | Low Alloy (F1-F91), Austenitic (F304-F348), Duplex (F51-F60) |
| Heat Treatment | Mandatory solution annealing or quenching & tempering per grade |
Application at Jayesh Forge (Rajkot Plant)
Every stainless and alloy steel flange, elbow, and branch outlet produced at our Rajkot plant is fully melted and tested to ASTM A182 specifications.
Related Materials, Standards & Products
Applicable Material Grades
Engineered Product Lines
Related Metallurgical & Testing Terms
Solution Annealing (Solution Treatment)
Heating austenitic or duplex stainless steel above 1040°C to dissolve all chromium carbides, followed by rapid water quenching to trap elements in solid solution.
ASME B16.5 Pipe Flanges Standard
The definitive American standard covering pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges NPS 1/2 through NPS 24.
Duplex Stainless Steel (2205 / F51 / S31803)
A dual-phase stainless steel possessing an approximate 50% austenitic and 50% ferritic microstructure, combining twice the yield strength of 316L with supreme chloride pitting resistance.
Questions Regarding ASTM A182 Forged Alloy & Stainless Fittings Standard
Yes, all austenitic grades like F304L and F316L must be solution annealed at 1040°C+ and liquid-quenched to dissolve all chromium carbides.
Request a Forging Quote with ASTM A182 Forged Alloy & Stainless Fittings Standard Compliance
Our Rajkot metallurgy desk is ready to review your technical drawings, testing protocols, and delivery schedules for custom closed-die forgings strictly up to 50 kg.