Overview of NM450 and AR450 Steel
Overview of NM450 and AR450 Steel NM450: Originates from China, where it is widely manufactured. "NM" stands for "wear-resistant steel" in Chinese standards. The "450" represents its nominal hardness value, typically around 450 HBW (Brinell Hardness). AR450: A globally recognized grade, especially under American standards. "AR" stands for "Abrasion Resistant." Similarly, "450"...