ASTM A608 / A608M Alloy Steel Tubes are centrifugally cast iron-chromium-nickel high-alloy steel tubes designed for high-temperature and corrosion-resistant applications. These tubes are widely used in furnaces, petrochemical plants, heat treatment equipment, radiant heater systems, and industrial processing units where exceptional resistance to heat, oxidation, carburization, and thermal cycling is required. Manufactured in accordance with ASTM A608 / A608M, this specification covers centrifugally cast iron-chromium-nickel high-alloy steel tubes intended for pressure-containing and high-temperature service. The standard ensures controlled chemical composition, mechanical properties, dimensional tolerances, and dependable performance in severe operating environments. Ladhani Metal Corporation is a trusted manufacturer, supplier, and exporter of ASTM A608 / A608M Alloy Steel Tubes, supplied with mill test certificates and strict quality inspection as per international standards. Forms of Supply (as per specification): Centrifugally cast alloy tubes, High-temperature alloy tubes, Furnace tubes, Radiant tubes, Heat-resistant alloy tubes, Cast steel tubes, Industrial process tubes, Petrochemical tubes, Straight tubes, Custom fabricated tubes Available Grades (as per ASTM A608 / A608M): HC30, HD50, HE35, HF30, HH30, HH33, HH35, HK30, HK40, HL30, HL40, HN40, HPNb, HPNbS, HT50, HU50, HW50, HX50 Scope of Specification: • Covers centrifugally cast iron-chromium-nickel high-alloy steel tubes • Suitable for high-temperature and pressure-containing applications • Provides excellent oxidation, carburization, and creep resistance • Intended for severe thermal service environments Typical Chemical Composition (HK40 Example): • Carbon (C): 0.35 – 0.45% • Chromium (Cr): 24.0 – 28.0% • Nickel (Ni): 19.0 – 22.0% • Silicon (Si): 1.00 – 2.00% • Manganese (Mn): Max 2.00% • Phosphorus (P): Max 0.040% • Sulphur (S): Max 0.040% Mechanical Properties (HK40 Example): • Tensile Strength: Min 450 MPa • Yield Strength: Min 240 MPa • Excellent creep strength at elevated temperatures • Superior resistance to thermal fatigue and oxidation • Suitable for continuous high-temperature operation Key Features: • Outstanding high-temperature strength • Excellent oxidation and carburization resistance • Superior creep and thermal fatigue resistance • Good structural stability at elevated temperatures • Long service life in furnace environments Material Characteristics: ASTM A608 / A608M alloy steel tubes provide exceptional resistance to heat, oxidation, thermal shock, and corrosive process environments. The high chromium and nickel content ensures excellent metallurgical stability and durability under prolonged exposure to elevated temperatures. Applications: • Furnace radiant tubes • Petrochemical processing units • Heat treatment furnaces • Reformer tubes • Industrial heating systems • Thermal processing equipment • High-temperature process plants Conclusion: Ladhani Metal Corporation supplies high-quality ASTM A608 / A608M Alloy Steel Tubes in HC30, HD50, HE35, HF30, HH30, HH33, HH35, HK30, HK40, HL30, HL40, HN40, HPNb, HPNbS, HT50, HU50, HW50, and HX50 grades with various sizes, wall thicknesses, and customized specifications. For stock availability, customized specifications, or technical details, contact Ladhani Metal Corporation. #ASTMA608 #ASTMA608M #ASTMA608Tube #ASTMA608AlloyTube #ASTMA608CastIronTube #ASTMA608ChromiumNickelTube #ASTMA608HighAlloyTube #ASTMA608HeatResistantTube #ASTMA608CentrifugallyCastTube #ASTMA608FurnaceTube #ASTMA608RadiantTube #ASTMA608PetrochemicalTube #ASTMA608IndustrialTube #ASTMA608SteelTube #ASTMA608TubeSupplier #ASTMA608TubeManufacturer #ASTMA608Exporter #ASTMA608Stockist #ASTMA608Dealer #ASTMA608HighTemperatureTube #ASTMA608CorrosionResistantTube #ASTMA608HeatTreatmentTube #ASTMA608ProcessHeaterTube #ASTMA608ReformerTube #ASTMA608ChemicalProcessingTube #ASTMA608MechanicalProperties #ASTMA608ChemicalComposition #ASTMA608IndustrialApplications #ASTMA608EngineeringMaterials #ASTMA608TubeDistributor #ASTMA608CastAlloyTube #ASTMHighAlloyTube #ChromiumNickelAlloyTube #HeatResistantAlloyTube #IndustrialFurnaceTube #Mumbai #Delhi #Chennai #Kolkata #Bengaluru #Hyderabad #Ahmedabad #Pune #Surat #Jaipur #Lucknow #Kanpur #Nagpur #Indore #Srinagar #Aurangabad #Dhanbad #Amritsar #NaviMumbai #Allahabad #Ranchi #Howrah #Jabalpur #Gwalior #Vijayawada #Jodhpur #Raipur #Kota #Guwahati