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Material data sheet

Steel grade

Last revised: Fri, 30 Oct 2020 08:00:10 GMT

General Information

Grade Ovako 322A and 322D are Cr and Mo alloyed quench and tempering steel with low carbon content. The steel combine high strength with high toughness.

  • Variant 322A correspond to the EN grade 25CrMo4.
  • Variant 322D corresponds to SAE 4130 / 30CrMo4*. Suitable for flame or induction hardening.
  • Variant  6014 is EN  grade 25CrMo4  M-steel

Delivered as rolled, soft annealed normalized or quench and tempered. Weldable under certain conditions. 


For additional Heat Treatment Data, please visit the Heat Treatment Guide.


* Designation followed by "*" is not an official EN standard grade but named according to the rules in EN 10027.

Similar designations

9224 - 27CrMo4-2, 30CrMo4*, 30CrMo4, SS2225, 4130

*SS142225 (1986); All formats condition +QT: Dim<160mm corresponds to SS2225-06; Dim<100mm to SS2225-03; Dim<40mm to SS2225-05; All formats condition +A corresponds to SS2225-02

Steel cleanliness

Micro inclusions - steel grade 322A + 322D  



Macro inclusions - 322A + 322D
Applied standard ASTM E45 Applied standard

ISO 3763

(Blue fracture)

Sampling ASTM A295 Sampling Statistical testing on billets




A B C D Limits < 5 mm/dm2
Th He Th He Th He Th He









Other properties (typical values)

Youngs module (GPa)Poisson´s ratio (-)Shear module (GPa)Density (kg/m3)
210 0.3 80 7800
 Average CTE 20-300°C (µm/m°K) Specific heat capacity 50/100°C (J/kg°K) Thermal conductivity Ambient temperature (W/m°K) Electrical resistivityAmbient temperature (µΩm)
 12  460 - 480  40 - 45  0.20 - 0.25

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The information in this document is for illustrative purposes only. The data and examples are only general recommendations and not a warranty or a guarantee. The suitability of a product for a specific application can be confirmed only by Ovako once given the actual conditions.The purchaser of an Ovako product has the responsibility to ascertain and control the applicability of the products before using them. Continuous development may necessitate changes in technical data without notice. This document is only valid for Ovako material. Other material, covering the same international specifications, does not necessarily comply with the properties presented in this document.