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S620QL1 | 1.8987 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor Successor VDA 231-106 classification
1.8987 (DIN EN 10025-6 : 2005-02) S620QL1 1.8987 DIN EN 10025-6 : 2005-02 DIN EN 10025-6 : 2005-02+A1:2009 replaced by DIN EN 10025-6 : 2020-02 Replaced Germany S620QL1 S620QL1 1.1.1 1)
1) Remark: The alloyed special steel S620QL1 is a liquid quenched and tempered weldable fine grained steel with a minimum yield strength of 620 N/mm². It is applicated for steel structures, e.g. bridge and load-carrying constructions, lifting and earthmoving machines. The normal thickness span is 3 to 100 mm. Lowest application temperature -40 deg. C. The steel is cold forming processed, i.e. at temperatures below highest tolerable stress relieving temperature of 530 to 560 deg. C. After hot forming above 580 deg. C has to be conducted a repeated tempering in order to achieve delivery condition qualities. The steel is combustible and fusion cuttable subject to appropriate operating method. Surface condition influences flame cutting. Preheating up to 100 - 200 deg. C is advisable for workpiece temperatures below 5 deg. C and if flame cutting edges are cold formed on further processing. Suitability for welding: Steel is weldable according to the common welding methods (EURONORM-INFORMATION No. 2 has to be considered) Surface treatment: hot dip coating suitability is arrangeable on order (suitability classes see DIN EN 10025-6) The steel is suitability tested for steam boiler and pressure vessel construction according to instructions valid for Federal Republic of Germany (VdTÜV-Werkstoffblatt 257).

Chemical Composition

B [%] C [%] Cr [%] Cu [%] Mn [%] Mo [%] N [%] Nb [%] Ni [%] P [%] S [%] Si [%] Ti [%] V [%] Zr [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength [MPa] Elongation A [%]
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)]
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Toughness Data (Impact)

Condition Nominal Size [mm] Temperature [°C] Specimen Shape Specimen Direction Notch Impact Energy [J]
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Welding and Joining

Procedure Welding and Joining - Evaluation
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Heat Treatment

Heat Treatment Temperature [°C]
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Formability - Bending - Folding

Condition Nominal Size [mm] Radius of Bend [mm] Rolling Direction
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Cross Reference

Material Name Country Standard
S620QL1 Europe EN 10025-6
S620Q F International ISO 630-4 1)
EStE 620 V Germany 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Density

Temperature [°C] Density [g/cm³]
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Alternating stress

Temperature [°C] Stress ratio Mean stress [MPa] Alternating stress [MPa] Cycles
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Designation

Designation Material number Source
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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