SKD61 Tool Steel: Hot-Work Dies and JIS Callouts

SKD61 is a Japanese hot-work tool-steel designation. Material reference.

Hot-Work Dies and JIS Callouts

When comparing it with H13, establish the exact standards and product quality required by the customer. A cross-reference does not settle remelting, cleanliness, ultrasonic inspection or thermal-cycle qualification. Use the tool's actual failure history to decide which of those requirements matters.

Manufacturing and acceptance checks

State the supplied condition, final hardness, cavity dimensions and heat-treatment traceability. Document cooling passages and any surface treatment in the process review. Evaluate the finished tool for cracking and dimensional change, and make substitution approval explicit before ordering a different material.

Compare related options

• H13 Tool Steel
• H11 Tool Steel

Reference and scope

Daido: tool-steel grade and product list provides material or specification background. The checks above are purchasing guidance; final acceptance values must come from the agreed grade, product specification and condition.

Send a drawing and material requirements for review. Include quantity, critical dimensions and the inspection evidence required with delivery.