1.2344 ESR
Other1.2344 ESR (H13)
Premium ESR-refined H13 hot work tool steel. Maximized isotropy & toughness.
Chemical Composition (%)
| C | 0.37 |
|---|---|
| SI | 0.9 |
| MN | 0.3 |
| CR | 4.8 |
| MO | 1.2 |
| V | 0.9 |
| P | 0.015 |
| S | 0.003 |
Mechanical Properties
Hardness(annealed):≤229 HB;Hardness(hardened):48-55 HRC
Chinese Standard
DIN 1.2344 ESR
Equivalent Grades
Premium H13 ESR
Applications
Premium die casting, hot stamping, extrusion
Available Forms
Round,Block
Uses
Tool and die steel for cutting, forming, punching and molding tools. Tungsten/molybdenum (≈0%/1.35%) give hot hardness and red-hardness for high-speed and hot-work tools. High chromium (≈5.15%) provides wear resistance and secondary hardening. Applied to blanks, punches, extrusion dies, shear blades, plastic-mold and cold-work tooling.
Heat Treatment
Hot-work: preheat 800 °C, austenitize 1020–1080 °C, quench, temper 540–620 °C (multiple) for hot hardness and thermal fatigue resistance.
Precautions
Risk of quench cracking and distortion — use graded preheating, controlled cooling and multiple tempers. Avoid overheating the austenitizing temperature. Machine in the soft annealed condition; allow for dimensional change after heat treatment. Grind with coolant to prevent rehardening cracks.
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