Blog

D2 tool steel flat bar

How to Properly Heat Treat D2 Steel

D2 tool steel is a high-carbon, high-chromium air-hardening steel characterized by exceptional wear resistance, excellent dimensional stability during quenching, and high resistance to softening. Despite its challenging machinability and weldability because of its high alloy content, this steel grade remains widely used in long-life molds, punching dies, and cold-forming dies. Heat treatment is critical for D2 steel,

How to Properly Heat Treat D2 Steel Read More »

4140 alloy steel

Is 4140 Steel Stainless?

No, 4140 steel is not stainless steel. It is consistently classified as a medium-carbon low-alloy steel, specifically a chromium-molybdenum (Cr-Mo) alloy. What is stainless steel Stainless steel is a broad group of iron-based alloys primarily characterized by their enhanced corrosion resistance. This unique property is achieved by the addition of a minimum amount of chromium,

Is 4140 Steel Stainless? Read More »

M2 TOOL STEEL

What does HSS stand for?

HSS primarily stands for High-Speed Steel or High-Speed Tool Steel. It is a crucial category of alloy steels predominantly used for creating engineering cutting tools. Definition and Primary Function High-Speed Steels (HSS) are a class of alloy steels specifically designed for applications requiring materials that can maintain their hardness and cutting edge even at elevated

What does HSS stand for? Read More »

4140 alloy steel

4140 steel hardness

4140 steel exhibits varying hardness levels under different conditions and treatment states. Generally speaking, the primary scenarios are as follows: As-Quenched Hardness, Quenched and Tempered Hardness, Annealed or Normalized Hardness, and Surface Hardened Hardness. What is 4140 steel? AISI 4140 steel is a medium alloy carbon steel. It is used in applications that require good

4140 steel hardness Read More »