EN 10084 20NiCrMo13-4 is a high-alloy nickel-chromium-molybdenum carburizing steel grade designed for components requiring an extremely hard, wear-resistant surface combined with a very tough and high-strength core after carburizing and heat treatment. With approximately 0.20% carbon and elevated alloy content, this grade offers excellent hardenability, deep case hardening capability, superior fatigue strength, and high resistance to shock loading in demanding applications. Manufactured in accordance with EN 10084, which specifies technical delivery conditions for steels intended for carburizing treatment, 20NiCrMo13-4 steel is widely used in heavy-duty gear manufacturing, power transmission systems, mining equipment, and critical automotive components. Nickel significantly enhances core toughness and impact resistance, chromium improves wear resistance and case depth, while molybdenum increases hardenability and resistance to tempering, ensuring long service life under severe operating conditions. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of EN 10084 20NiCrMo13-4 round bars, supplied with mill test certificates and strict quality inspection as per European standards. Forms of Supply (as per grade): Hot rolled round bars, Black round bars, Bright round bars, Peeled bars, Turned bars, Ground bars, Forged round bars Explanation of Designation (20NiCrMo13-4): • 20 – Approx. 0.20% carbon content • Ni – Nickel alloyed steel • Cr – Chromium alloyed steel • Mo – Molybdenum alloyed steel • 13-4 – Alloy content classification (nickel/chromium and molybdenum levels) Chemical Composition (% – typical limits): • Carbon (C): 0.17 – 0.23 • Manganese (Mn): 0.50 – 0.80 • Silicon (Si): ≤ 0.40 • Nickel (Ni): 3.00 – 3.50 • Chromium (Cr): 1.20 – 1.60 • Molybdenum (Mo): 0.25 – 0.35 • Phosphorus (P): ≤ 0.025 • Sulphur (S): ≤ 0.035 Mechanical Properties (Core, typical normalized condition): • Tensile Strength: 1050 – 1250 MPa • Yield Strength: ≥ 850 MPa • Elongation: ≥ 7% • Hardness (Core): 320 – 380 HB After carburizing and quenching, the surface hardness can reach approximately 58 – 62 HRC, depending on case depth and heat treatment conditions. Key Features: • Excellent deep case hardening capability • Very high core toughness due to elevated nickel content • Superior hardenability and wear resistance • Enhanced resistance to tempering and thermal softening • Suitable for critical and heavily loaded components Material Characteristics: EN 10084 20NiCrMo13-4 round bars provide an exceptional balance of deep surface hardness and strong core strength. The higher alloy content ensures consistent case depth, improved load-bearing capacity, and reliable long-term performance in demanding mechanical environments. Applications: • Heavy-duty gears and gear shafts • Mining and cement plant gear systems • Industrial gearbox and drive components • Power transmission shafts • High-load pinions and couplings • Case hardened components subjected to severe cyclic and shock stresses Conclusion: Ladhani Metal Corporation supplies high-quality EN 10084 20NiCrMo13-4 round bars in various diameters and finishes. With superior hardenability, deep carburizing response, and outstanding mechanical performance, 20NiCrMo13-4 steel is widely preferred for demanding industrial and automotive engineering applications. For stock availability, customized sizes, or technical specifications, contact Ladhani Metal Corporation. #EN10084 #EN10084Steel #EN10084Bars #EN10084CarburizingSteel #EN10084CaseHardeningSteel #ENStandardSteel #AlloySteel #CaseHardeningSteel #CarburizingSteel #C10E #C15E #C16E #16MnCr5 #20MnCr5 #18CrNiMo76 #17Cr3 #20MnCrS5 #EngineeringSteelBars #AlloySteelBars #AlloySteelRods #RoundBar #FlatBar #SquareBar #HexBar #ForgingSteel #MachinerySteel #AutomotiveSteel #MechanicalSteel #GearSteel #PinionSteel #ShaftSteel #TransmissionSteel #HeatTreatableSteel #CaseHardenedSteel #SteelManufacturers #SteelSuppliers #SteelStockist #SteelExporter #IndianSteel #AlloySteelSupplier #EN10084Supplier #EN10084Manufacturer #EN10084Exporter #SteelBarsIndia #SteelRodsIndia #MetalIndustry #IndustrialSteel #EngineeringIndustry #HeavyEngineeringSteel #FabricationSteel #SteelTrading #SteelWholesale #LadhaniMetal #Mumbai #Delhi #Chennai #Kolkata #Bengaluru #Hyderabad #Ahmedabad #Pune #Surat #Jaipur #Lucknow #Kanpur #Nagpur #Indore #Thane #Bhopal #Visakhapatnam #Patna #Vadodara #Ghaziabad #Ludhiana #Coimbatore #Agra #Madurai #Nashik #Faridabad #Meerut #Rajkot #Varanasi #Srinagar #Aurangabad #Dhanbad #Amritsar #NaviMumbai #Allahabad #Ranchi #Howrah #Jabalpur #Gwalior #Vijayawada #Jodhpur #Raipur #Kota #Guwahati #Chandigarh #Solapur #Hubli #Mysuru #Tiruchirappalli #Bareilly