Heat Treated Steel
Chemical Composition
Characteristics
High-alloy hot work tool steel, CrMoV-based, with greater high-temperature strength and better
tempering properties than grade 2344.
Extremely high hot wear resistance compared to grades 2344 and 2365
Applications
Extrusion tools including pipe extruders, especially for liners for pressing steel, and for pipe mandrels
(including water cooling).
Forging dies and press dies for extreme wearing stresses.
Die-casting moulds for Al and Mg die-casting.
Delivered condition
Annealed to max. 229 HB
Hardened and tempered to customer specifi cation on request
Physical properties (reference values)
| C | Si | Mn | P | S | Cr | Mo | V | ||
| Typical analysis | 0.36 | 0.40 | 0.45 | 0.020 | 0.003 | 5.00 | 3.00 | 0.50 | |
| Chemical composition as per SEL | 0.35– 0.40 |
0.30– 0.50 |
0.30– 0.50 |
≦ 0.030 |
≦ 0.020 |
4.80– 5.20 |
2.70– 3.20 |
0.40– 0.60 |
Figures in % by mass
| Register of European Steels (SEL) |
X 38 CrMoV 5-3 |
| DIN EN ISO 4957 | X 38 CrMoV 5-3 |
| AFNOR | Z 38 CDV 5,3 |
Characteristics
High-alloy hot work tool steel, CrMoV-based, with greater high-temperature strength and better
tempering properties than grade 2344.
Extremely high hot wear resistance compared to grades 2344 and 2365
Applications
Extrusion tools including pipe extruders, especially for liners for pressing steel, and for pipe mandrels
(including water cooling).
Forging dies and press dies for extreme wearing stresses.
Die-casting moulds for Al and Mg die-casting.
Delivered condition
Annealed to max. 229 HB
Hardened and tempered to customer specifi cation on request
Physical properties (reference values)
| Thermal expansion coeffi cient (10–6/K) |
20–100 °C 11.9 |
20–250 °C 12.6 |
20–500 °C 13.1 |
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| Thermal conductivity (W/mK) |
20 °C 29.7 |
250 °C 33.5 |
500 °C 34.8 |
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| Young’s modulus (GPa) |
20 °C 210 |
250 °C 195 |
500 °C 172 |
