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Last revised: Wed, 29 Jun 2022 10:41:25 GMT

56SiCr7

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General Information

Grade 56SiCr7 is a silicon spring steel with an addition of chromium for hardenability.

Similar designations

1.7106, 9084 - 54Si7

Chemical composition

Variant	Cast		C %	Si %	Mn %	P %	S %	Cr %
SB 9071	CC	Min	0.52	1.70	0.80	-	-	0.20
SB 9071	CC	Max	0.57	2.10	1.00	0.025	0.025	0.30
56SiCr7 EN10089	Std	Min	0.52	1.60	0.70	-	-	0.20
56SiCr7 EN10089	Std	Max	0.60	2.00	1.00	0.025	0.025	0.45

Mechanical Properties

Variant	Condition	Yield strength min [MPa]	Tensile strength [MPa]	Elongation A₅ [%]
Rp_0.2 * R_eh, ** R_el
56SiCr7 EN10089	+QT	1350	1500-1800	6

Transformation temperatures

	Temperature °C
MS	265
AC1	770
AC3	821

Hardenability

SUSTAINABILITY-ENVIRONMENTAL IMPACT DATA

At Ovako sustainability and reduction of our environmental impact is a major focus in everything we do.
Further information is found here.

In many international comparisons the crude steel Scope 1-2 emission is a key parameter, ie. the CO₂ emission from the steel works itself.
As of 1 January 2022 we carbon offset all our scope 1 and 2 volume shown below.

Steel works	Hofors	Smedjebacken	Imatra
CO2e/kg	120	62	76

To get the full picture of our products environmental impact we have to look at all of our CO₂ emission sources.
Not only the steel work Scope 1-2 itself, but all operations downstream in our production, heating and heat treatment furnaces etc (full scope 1-2) as well as all the emission from input material, eg. alloys, scope 3.

Steel Grade	Format	Condition	Scope 1-3 (CO2e kg /1000 kg steel)	Climate compensated Net emission = Scope 3 (CO2e kg /1000 kg steel) Scope 1 - 2 = 0 (compensated)
SB 9084	Round bar	+AR	445	203

As of 1 January 2022 we use carbon offset for all our scope 1- 2 emissions, so in practice the climate compensated data is the same as the full Scope 3 level.
All above data are to be seen as typical values for the specified format and condition. Detailed information about your specific product please contact your sales contact.

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

Contact us

Would you like to know more about our offers? Don´t hesitate to contact us:

Via e-mail: info@ovako.com

Via telephone: +46 8 622 1300

For more detailed information please visit http://www.ovako.com/en/Contact-Ovako/

Disclaimer

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.

General information
Chemical composition
Mechanical properties
Transformation temp.
Hardenability
Sustainability