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Last revised: Wed, 04 Dec 2024 16:11:38 GMT

34CrMo4

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General Information

SAE4130m is a low alloyed steel used in quenched and tempered condition. The nearest equivalents are 34CrMo4 in EN10083-3 or 4130 in ASTM A29 with some deviations. The material is delivered as rolled or annealed.

Chemical composition

Variant	Cast	Weldability		C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %	Cu %
4130 ASTM A29	CC	CEV 0.65_max	Min	0.28	0.15	0.40	-	-	0.80	-	0.15	-
4130 ASTM A29	CC	Pcm 0.42_max	Max	0.33	0.35	0.60	0.035	0.040	1.10	0.25	0.30	0.35
SAE4130m	CC	CEV 0.66_max	Min	0.27	0.15	0.60	-	-	0.60	-	0.15	-
SAE4130m	CC	Pcm 0.41_max	Max	0.33	0.35	0.90	0.030	0.035	1.00	0.30	0.25	0.35
34CrMo4 EN10083-3:2006	CC	CEV 0.73_max	Min	0.30	-	0.60	-	-	0.90	-	0.15	-
34CrMo4 EN10083-3:2006	CC	Pcm 0.46_max	Max	0.37	0.40	0.90	0.025	0.035	1.20	-	0.30	-
34CrMo4 EN ISO 683-2	Std	CEV _max	Min	0.30	0.10	0.60	0.000	0.000	0.90	-	0.15	-
34CrMo4 EN ISO 683-2	Std	Pcm _max	Max	0.37	0.40	0.90	0.025	0.035	1.20	-	0.30	-

Mechanical Properties

Variant	Condition	Format	Dimension [mm]	Hardness
Rp_0.2 * R_eh, ** R_el
SAE4130m	+AR	Round bar	14 < 70	< 260 HB
SAE4130m	+A	Round bar	14 < 70	< 223 HB

Transformation temperatures

	Temperature °C
MS	552
AC1	737
AC3	808

Heat Treatment Guide generated Graphs

The following graphs are generated from a theoretical model. For further info see the Heat treatment guide module. Select a specific grade version for individual display.

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.

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)
4130 ASTM A29	Flat bar	+AR	421	201
SAE4130m	Flat bar	+AR	421	201

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.
HTG Graphs
Sustainability