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I want to know this material type? I wished you could me answer of my question.
The fracture toughness, or the property that describes the ability of a material containing a crack to resist fracture, of mild steel is around 50 K (where 'K' is the stress intensity factor).
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LOW CARBON steel material
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Killarney
Kia
Kenworth
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Kansas City
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Kohima Avenue.
Katydid
The Kinks Kiss