The Role Of Chemical Composition In Russian Standard 9kh5vf Steel - China

9KH5VF Steel Chemical Composition & Functions 1 - Carbon (C): - Ensures high hardness after quenching (up to 60–62 HRC) - Forms high-hardness carbides, improving wear resistance 2 - Chromium (Cr): - Significantly improves the hardenability of 9KH5VF steel: hardens even with air cooling - Forms stable carbides → improves wear resistance and anti-galling 3 - Tungsten (W): This is the key element that distinguishes 9KH5VF steel from A2 - Significantly improves high-temperature hardness and red hardness - Refines carbides, making dies more wear-resistant and longer-lasting 4 - Vanadium (V): - Strongly refines grains → significantly improves toughness - Prevents die chipping and cracking - Improves the wear resistance and dimensional stability of 9KH5VF steel 5 - Manganese (Mn) & Silicon (Si): - Mn: Improves hardenability and strengthens the matrix - Si: Deoxidizes, improves elasticity and strength 9KH5VF steel relies on high carbon to ensure hardness, chromium to achieve air-cooled hardening, tungsten to improve high-temperature wear resistance and stability, and vanadium to refine grains and improve toughness.

It is a high-toughness, medium-high wear-resistant, and air-cooled micro-deformation precision cold work die steel.

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