Product Knowledge of 420 Stainless Steel Plates

Q1: What is the hardness of 420 stainless steel plates after heat treatment?

A1: After quenching + tempering heat treatment, the hardness can reach HRC 50-55, and some high-end grades can reach HRC 55-60, with high hardness and strong wear resistance, which is an ideal material for cutlery and mold processing.

Q2: What is the common thickness range of 420 stainless steel plates?

A2: The common thickness range for foreign trade is 1mm-20mm. Among them, the demand for plates with thickness of 3mm-10mm is the most concentrated. Special thicknesses can be customized on demand, which are suitable for processing scenarios such as cutlery, molds and hardware accessories, with good thickness uniformity and high processing precision.

Q3: What is the corrosion resistance of 420 stainless steel plates?

A3: The corrosion resistance is medium. It can resist corrosion from the atmosphere and fresh water. It has high carbon content, weak resistance to strong acids and alkalis, chloride ions, and is easy to rust. It is not suitable for humid, chemical, coastal and other scenarios, and is mainly used for cutlery and molds in dry environments.

Q4: What are the foreign trade application scenarios of 420 stainless steel plates?

A4: They are mainly used in cutlery manufacturing (kitchen cutlery, industrial cutlery), mold manufacturing (plastic molds, hardware molds), hardware accessories (locks, hinges), medical equipment (surgical cutlery), etc., and are common materials in the foreign trade cutlery and mold fields.

Q5: What is the difference between 420 stainless steel plates and 410 stainless steel plates?

A5: The core differences lie in carbon content and hardness. 420 has a higher carbon content (0.16%-0.25%), and 410 has a lower carbon content (below 0.15%); 420 has higher hardness and better wear resistance after heat treatment, and the price is slightly higher than 410, suitable for cutlery and mold scenarios with higher requirements.