EN 10084 18CrNiMo7-6 is a premium chromium-nickel-molybdenum alloy carburizing steel grade designed for highly stressed components requiring an extremely hard, wear-resistant surface combined with a very tough and high-strength core after carburizing and heat treatment. With approximately 0.18% carbon and high alloy content, this grade offers exceptional hardenability, deep case hardening capability, and outstanding fatigue strength under heavy dynamic and shock loading conditions. Manufactured in accordance with EN 10084, which specifies technical delivery conditions for steels intended for carburizing treatment, 18CrNiMo7-6 steel is widely used in heavy-duty gear manufacturing, wind turbine gearboxes, mining equipment, and critical automotive transmission applications. Nickel 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 18CrNiMo7-6 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 (18CrNiMo7-6): • 18 – Approx. 0.18% carbon content • Cr – Chromium alloyed steel • Ni – Nickel alloyed steel • Mo – Molybdenum alloyed steel • 7-6 – Alloy content classification (chromium/nickel and molybdenum levels) Chemical Composition (% – typical limits): • Carbon (C): 0.15 – 0.21 • Manganese (Mn): 0.50 – 0.90 • Silicon (Si): ≤ 0.40 • Chromium (Cr): 1.50 – 1.80 • Nickel (Ni): 1.40 – 1.70 • Molybdenum (Mo): 0.25 – 0.35 • Phosphorus (P): ≤ 0.025 • Sulphur (S): ≤ 0.035 Mechanical Properties (Core, typical normalized condition): • Tensile Strength: 1000 – 1200 MPa • Yield Strength: ≥ 800 MPa • Elongation: ≥ 8% • Hardness (Core): 300 – 360 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 • Superior hardenability and uniform case depth • Outstanding core toughness and fatigue strength • High resistance to wear and shock loading • Suitable for critical heavy-duty applications Material Characteristics: EN 10084 18CrNiMo7-6 round bars provide an exceptional combination of deep surface hardness and robust core strength. The balanced alloy composition ensures enhanced wear resistance, high load-bearing capacity, and long-term performance in demanding mechanical environments. Applications: • Heavy-duty gears and gear shafts • Wind turbine gearbox components • Mining and cement plant gear systems • Automotive transmission and differential components • Industrial drive systems • High-load pinions and shafts Conclusion: Ladhani Metal Corporation supplies high-quality EN 10084 18CrNiMo7-6 round bars in various diameters and finishes. With superior hardenability, deep carburizing capability, and exceptional mechanical strength, 18CrNiMo7-6 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