800n/mm2
mechnical properties of hardened steel
Well, when it comes to welding EN24 steel, you'll want to use a welding rod that matches its strength and composition, like an E11018 electrode. Pre-heating the steel can help reduce the risk of cracking and improve the overall weld quality, especially for thicker sections. Just remember, take your time, breathe, and trust in your skills - you've got this!
EN24 is a (1.5% Ni,Cr,Mo) steel in US equivalent to SAE 4340,Chemical Composition % - Carbon 0.35-0.45/ Silicon 0.10-0.35/ Manganese 0.45-0.70/ Nickel 1.30-1.80 / Chromium 0.90-1.40/ Moly 0.20-0.35/ Sulphur 0.050 (max)/ Phosphorous 0.050(max).Mechanical Properties -Limiting Ruling Section (in) - 6Tensile Strength (tons/sq.in.) - 55 (min)Proof Stress (tons/sq.in.) - 41 (min)Elongation % - 18 (min)Izod Impact Value (Ft.Lb.) 40(min)Weldability - POORApplication - High tensile steel suitable for pump shafts and turbine rotors in general and for similar uses. Non-preferred but sometime used in place of EN 27 steel when the later not available.
42 to 45 HRC
The shear modulus (also known as the modulus of rigidity) for EN24 steel typically ranges between 80 to 85 GPa (gigapascals). EN24 is a high-strength alloy steel known for its excellent mechanical properties, including high tensile strength and toughness. The exact value can vary based on the specific heat treatment and processing of the material.
En8 is low carbon steel and it can be toughned. En24 is medium carbon steel and it is generally called forged steel.
mechnical properties of hardened steel
The density of EN8 steel is approximately 7.85 g/cm^3.
the yield strength of EN8 material is 465MPa.
Well, when it comes to welding EN24 steel, you'll want to use a welding rod that matches its strength and composition, like an E11018 electrode. Pre-heating the steel can help reduce the risk of cracking and improve the overall weld quality, especially for thicker sections. Just remember, take your time, breathe, and trust in your skills - you've got this!
European Norms
EN24 is a (1.5% Ni,Cr,Mo) steel in US equivalent to SAE 4340,Chemical Composition % - Carbon 0.35-0.45/ Silicon 0.10-0.35/ Manganese 0.45-0.70/ Nickel 1.30-1.80 / Chromium 0.90-1.40/ Moly 0.20-0.35/ Sulphur 0.050 (max)/ Phosphorous 0.050(max).Mechanical Properties -Limiting Ruling Section (in) - 6Tensile Strength (tons/sq.in.) - 55 (min)Proof Stress (tons/sq.in.) - 41 (min)Elongation % - 18 (min)Izod Impact Value (Ft.Lb.) 40(min)Weldability - POORApplication - High tensile steel suitable for pump shafts and turbine rotors in general and for similar uses. Non-preferred but sometime used in place of EN 27 steel when the later not available.
42 to 45 HRC
EN24, also known as 4340 steel, typically has a working temperature range up to about 300°C (572°F) after appropriate heat treatment. The heat treatment process, which often includes quenching and tempering, enhances its mechanical properties, allowing it to maintain strength and toughness at elevated temperatures. However, specific applications may demand different temperature limits based on design and environmental conditions. Always consult material specifications and engineering guidelines for precise applications.
EN24 is a high quality, high tensile, alloy steel . Usually supplied readily machineable in 'T' condition, it combines hightensile strength, shock resistance, good ductility and resistance to wear. EN24 is available from stock in round bar, flat barand plate.TYPICAL ANALYSISEN24C.Si.MnNi.Cr.Mo.0.40%0.30%0.60%1.50%1.20%0.25%Hardening:Heat uniformly to 823/850°C until heated through. Quench in oil.Tempering:Heat uniformly and thoroughly at the selected tempering temperature, up to 660°C and hold at heat for two hours per inch oftotal thickness. Tempering between 250-375°C in not recommended as this can seriously reduce the steels impact value.Stress Relieving:Heat slowly to 650-670°C, soak well before cooling the EN24 tool in a furnace or in air.Mechanical PropertiesHeatTreatmentTensileStrengthRm N/mm²YieldStressRe N/mm²a% on5.665ÖSoImpactIzod JImpactKCV JProofStressrp0.2HardnessHBSizemmT850/1000654134035635248/302>150≤250T850/1000680135450665248/302>63≤250U925/1075755124754740269/331>29≤100V1000/1150850124742835293/352>13≤63W1075/1225940114035925311/375>6≤29X1150/130010201034281005345/401>6≤29Z1550123551091125444>6≤29
EN8 also know as 080M40. An unalloyed medium carbon steel. EN8 is a medium strength steel, good tensile strength. Suitable for shafts, stressed pins, studs, keys etc. AISI 1040.Available as normalised or rolled. EN8 is supplied as round drawn/turned, round hot rolled, hexagon, square, flats and plate.Chemical Composition BS 970:1991/1983 Nearest Equivalent C Si Mn Ni Cr Mo S P % % % % % % % % En8 0.35/0.45 0.05/0.35 0.60/1.00 - - - 0.06Max 0.06Max 080m40Chemical Composition BS 970:1991/1983 Nearest Equivalent C Si Mn Ni Cr Mo S P % % % % % % % % En8 0.35/0.45 0.05/0.35 0.60/1.00 - - - 0.06Max 0.06Max 080m40Chemical Composition BS 970:1991/1983 Nearest Equivalent C Si Mn Ni Cr Mo S P % % % % % % % % En8 0.35/0.45 0.05/0.35 0.60/1.00 - - - 0.06Max 0.06Max 080m40 Chemical Composition BS 970:1991/1983 Nearest Equivalent C Si Mn Ni Cr Mo S P % % % % % % % % En8 0.35/0.45 0.05/0.35 0.60/1.00 - - - 0.06Max 0.06Max 080m40 C Si Mn Ni Cr Mo S P % % % % % % % % En8 0.35/0.45 0.05/0.35 0.60/1.00 - - - 0.06Max 0.06Max 080m40CSiMnNiCrMoSP%%%%%%%%0.35/0.450.05/0.350.60/1.00---0.06Max0.06Max