12 May, 2025

If you’re using D2 tool steel in your factory, you might be wondering if hardening is a necessary step. Let’s get directly to the answer. The Short Answer: Yes, D2 Steel Needs Hardening D2 steel must be hardened for nearly all tooling applications in a factory setting. It’s designed to be used in its hardened […]

So, the big question: is P20 steel weldable? Yes, it absolutely is. P20 steel is commonly welded, particularly for repairing and modifying molds and dies. However, it’s not as straightforward as welding basic carbon steel. P20 is a specialized alloy tool steel, and to weld it successfully without issues, you need to follow specific procedures

Understanding O1 tool steel‘s hardness is critical for performance and tool life in factory applications. At Aobo Steel, this is a common question we address. To be direct, properly heat-treated O1 tool steel typically shows a Rockwell C hardness (HRC) from the low 50s to the mid-60s. In its as-quenched state—immediately after hardening and before

What’s the main difference between H13 and A2 tool steel? The bottom line is this: H13 is your go-to for hot work applications where tools operate at high temperatures. A2, on the other hand, is designed for cold work applications, excelling in tasks where dimensional stability and good wear resistance at ambient temperatures are key.