Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

METALLURGY OF IRON

Subclass:

MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING

Scope Notes

Glossary: deep-drawing metal forming process to create a three-dimensional, hollow or contoured shape with no thickness reduction intended and wherein depth of the drawn part is greater than the diameter of the part (usually for cylindrical shapes) drawing metal forming process to create a three-dimensional, hollow or contoured shape with no thickness reduction intended and covering any depth in relation to the other dimension of a component hot rolling rolling in the recrystallisation temperature range with no strain hardening (above approximately 800ºC) warm rolling rolling in the austenitic-ferritic temperature range, or also below with little recrystallisation and reduced strain hardening rate (approximately 200ºC to 800ºC) cold rolling rolling in the non-recrystallisation temperature range, close to room temperature with full strain hardening (below approximately 200°C) | Limiting references: Hardening articles or materials formed by forging or rolling with no further heating beyond that required for the formation

Related Keywords

Child Classifications

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• C21D 8/02 during manufacturing of plates or strips
• C21D 8/06 during manufacturing of rods or wires
• C21D 8/1 during manufacturing of tubular bodies
• C21D 8/12 during manufacturing of articles with special electromagnetic properties