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21CrMoV5-11 | 1.8070 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country VDA 231-106 classification
1.8070 (SEW 550 : 2024-12) 21CrMoV5-11 1.8070 SEW 550 : 2024-12 Supersedes SEW 550 : 1976-08 Valid Germany 1.1.1 1)
1) Remark: Quenched and tempered steel for larger forgings.

Chemical Composition

C [%] Cr [%] Mn [%] Mo [%] Ni [%] P [%] S [%] Si [%] V [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%]
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Physical Properties

Temperature [°C] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)]
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Toughness Data (Impact)

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Shape Specimen Direction Notch Impact Energy [J]
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Producer/Supplier/Trade names

Tradename Supplier
56 TN Aubert&Duval Special Steel GmbH, Mönchengladbach 1)
BGH 8070 BGH Edelstahl Siegen GmbH 1)
Firmodur 8070 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten 1)
21CrMoV5-11 Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff 1)
21CrMoV5-11 Schmiedewerke Gröditz GmbH, Gröditz 1)
21CrMoV5-11 Saarstahl AG, Völklingen 1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach