420

Low Carbon Stainless Steel (Basic Martensitic)50–54 HRCConventional Ingot Steel Process

化学成分分析

主要合金元素决定了这款钢在耐磨、耐蚀与韧性之间的基本走向。

材质综述

420 stainless steel is the base grade of the 420 family and represents one of the lowest-cost stainless steels used in knife manufacturing. Due to its low carbon content, it is very soft compared to modern steels, making it extremely easy to sharpen but poor in edge retention. It is commonly used in entry-level knives, diving knives, and applications where corrosion resistance and low cost are more important than cutting performance.

性能雷达图

用四个核心维度快速看清这款钢材的能力边界。

保持性

韧性

耐腐蚀

易打磨

保持性

3.0

韧性

7.0

耐腐蚀

7.0

易打磨

10.0

优点

Extremely easy to sharpen
Good corrosion resistance
Very low cost
Highly resistant to rust in basic environments
Good for simple utility use

缺点

Very poor edge retention
Soft blade performance
Requires frequent sharpening
Not suitable for serious cutting tasks

一句话判断

420 is a very basic stainless steel known for excellent corrosion resistance and extremely easy sharpening, but very low edge retention and soft cutting performance.