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Material data sheet

Steel grade

Last revised: Wed, 29 Jun 2022 09:52:52 GMT

General Information

9MnV5* is also referred to as S355L4. It is a micro-alloyed steel for general purposes where fantastic impact properties at low temperatures as well as defined mechanical properties are demanded. It is especially suitable for this sections. It has a tight chemical composition as well as low levels of residual elements to give small variations in the mechanical properties. The low carbon equivalent CEV makes it suitable for welding.

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

Similar designations

AH36, S355J2

Round bars start at 14 mm as minimum dimension. Maximum thickness for flat bar is 80 mm for widths 95-160 mm.

The grade is not intended for heat treatment operations. Normalizing is not necessary as normalised rolling is performed.

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.