Chinese Wear-resistant Steel
Low-hardness Wear-resistant Steel
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NM300
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NM300D
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NM300E
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Medium-hardness Wear-resistant Steel
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NM400
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NM400D
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NM400E
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NM450
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NM450D
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NM450E
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High-hardness Wear-resistant Steel
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NM500
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NM500D
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NM500E
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NM550
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NM550D
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NM550E
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NM600
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NM600D
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NM600E
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FAQ
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❓ What is the difference between low, medium and high hardness wear resistant steel?
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Low hardness (300–360 HBW): Better bending and welding performance
Medium hardness (400–450 HBW): Balanced wear resistance and toughness High hardness (500–600 HBW): Maximum abrasion resistance and longer service life |
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❓ What do the suffixes D and E mean in NM300D, NM300E or NM500D?
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Suffix D and E indicate low-temperature impact toughness, not hardness level.
D: Impact tested at −20°C E: Impact tested at −40°C The hardness remains within the same grade range. |
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❓ Can NM wear resistant steel plates be welded and formed?
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Yes. Lower hardness grades such as NM300 and NM360 offer better formability. For higher hardness grades, controlled welding procedures and preheating are recommended to avoid cracking.
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