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The extrusion ratio for hot extrusion is much more than the extrusion ratio for cold extrusion.

The extrusion ratio for hot extrusion is much more than the extrusion ratio for cold extrusion. Correct Answer True

The extrusion ratio is defined as the ratio of the initial cross-sectional area of the billet to the final cross-sectional area of the billet; hence this can be very high for hot extrusion because material is much more ductile and required stresses are very low.

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