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It was developed for enhanced creep resistance and for higher strength at temperatures above 1000°F (537°C). In most instances, the carbon content of the plate enables dual certification. Alloy 321 cannot be hardened by heat treatment, only by cold working.
May 10, 2022 · Therefore, the primary treating method used is nitriding and in unique situations carburizing. Heat Treating Stainless Steels with Nitriding. Nitriding is a process which can be carried out for austenitic SS in a very broad temperature range from 350 to 800°C (662-1225°F). Occasionally, even higher temperatures are used for solution nitriding.
Jan 10, 2023 · This unique alloy can withstand harsh temperatures up to 1500°F due to its high nickel and chromium content. As a result, 321 stainless steel is commonly used in applications where heat treatment isn’t suitable or economical.
to harden an alloy. Hardenability is the capability of an alloy to be hardened by heat treatment. There are several hardening treatments. Quench Hardening. For ferrous alloys, quench hardening is an austenite-forming (austenitizing) heat treatment, followed by cooling at a rate such that a substantial amount of austenite transforms to ...
Heat Treatment Recommended annealing temperature for TP321 and 321 wrought stainless steel: 1040 °C (1900 °F); Minimum 1095 °C (2000 °F) for cold-worked 321H and 1050 °C (1095 °F) for hot-finished 321H
Alloy 321 cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices. Common Applications. Aerospace – piston engine manifolds; Chemical Processing; Expansion Joints; Food Processing – equipment and storage; Petroleum Refining – polythionic acid service
May 15, 2014 · Introduction. Generally all austenitic stainless steels cannot be hardened by heat treatment but are hardened through work hardening or through utilisation of alloying elements or through grain size refinement.
