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What are the appropriate applications for 16MnCr5 and Q355B? Can both achieve a carburizing strength of 58-62 HRC?

2025-11-05
A:Q355 can be achieved through optimized heat treatment processes.
Material Surface Hardness (HRC) Core Hardness (HRC) Hardened Layer Depth (mm) Suitability
16MnCr5 58-62 28-35 0.8-1.5 Heavy-duty gears, transmission shafts
Q355B 40-45 (optimized ≤50) <20 0.3-0.6 (non-uniform)

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What material is used for the inner frame of the paving bricks? Is it 16MnCr5 (German board) or Q355B (domestic board)? Can both achieve a carburizing strength of 58-62 HRC? According to information found on Chatgpt, the former can achieve a carburizing strength of 58-62 HRC, but the latter is around 55-60 HRC. If a customer inquires, it will cause distrust and doubt.

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