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Help CenterSteel Pipe & Tube,Centrifugal Cast Furnace Tube, HK40, HP40, HP-Nb, HP-NbTi • 25Cr35Ni, 35Cr45Ni-Nb+Ti+Si • ZG40Cr25Ni20Si2, ZG40Cr28Ni16Si
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Detailed Product Description of Alloy Centrifugal Casting Pipe
1. Product Introduction
Alloy centrifugal casting pipe is a high-performance industrial pipe product manufactured by horizontal centrifugal casting process, mainly made of high-temperature resistant nickel-chromium alloy, heat-resistant alloy and special alloy steel materials. Driven by high-speed rotating centrifugal force, the molten alloy is uniformly formed, with compact internal structure, no shrinkage porosity, no blowholes, no slag inclusion and uniform wall thickness, which greatly improves the high-temperature stability, creep resistance, oxidation resistance and wear resistance of the pipe.
This product is specially designed for extreme working conditions such as high temperature, high pressure, corrosion and heavy load, widely used in petrochemical cracking furnaces, metallurgical heat treatment equipment, power plant boilers, industrial heating furnaces and other key projects. It can meet the use requirements of long-term continuous operation at 800℃-1250℃, and fully complies with ASTM A608, SADARA S175, Israel Standard 4466 and other international mainstream certification standards, supporting customized production of non-standard sizes, special materials and processing requirements.
2. Production Process & Quality Control
1. Raw Material Smelting: Adopt high-purity alloy raw materials, precise proportioning of nickel, chromium, niobium, titanium, silicon and other alloy elements, smelted in intermediate frequency electric furnace, with full-component spectral detection to ensure the stability of chemical composition.
2. Centrifugal Forming: High-speed rotating metal mold, centrifugal force drives the molten alloy to fill evenly, automatically separate gas and inclusions, realize defect-free blank forming, with higher density than static casting and sand casting products.
3. Heat Treatment: Standardized solution treatment, annealing and tempering process, optimize the metallographic structure, eliminate internal stress, improve the mechanical properties and high-temperature service stability of the pipe.
4. Precision Machining: CNC lathe finishing of inner and outer surfaces, standardized bevel processing, end face finishing, strict control of dimensional tolerance and surface roughness.
5. Full Inspection Before Delivery: Each pipe undergoes chemical composition analysis, room temperature and high-temperature mechanical property test, ultrasonic non-destructive testing, hardness test and dimensional full inspection, with complete and traceable quality certificates.
3. Main Material Grades
Our alloy centrifugal casting pipes cover conventional and special high-temperature resistant alloy grades, including but not limited to:
• HK40, HP40, HP-Nb, HP-NbTi
• 25Cr35Ni, 35Cr45Ni-Nb+Ti+Si
• ZG40Cr25Ni20Si2, ZG40Cr28Ni16Si2
• Custom special alloy materials for high-temperature, wear-resistant and corrosion-resistant working conditions
4. Core Technical Parameters
• Outer Diameter Range: φ50mm – φ1200mm
• Wall Thickness Range: 5mm – 80mm
• Single Length: 200mm – 6000mm (customizable length available)
• Dimensional Tolerance: Comply with international high-precision standards, outer diameter tolerance ±0.5mm, wall thickness tolerance ≤±0.8mm
• Tensile Strength: ≥420MPa (room temperature)
• Maximum Working Temperature: Up to 1250℃
• Typical Properties: Excellent high-temperature oxidation resistance, anti-carburization, creep resistance and thermal fatigue resistance, long service life under continuous high-temperature operation
• Surface Treatment: Finish turning, polishing, anti-rust coating, customized surface protection can be provided according to export requirements
5. Product Core Advantages
1. Superior Structure Performance: Centrifugal casting forms uniform and compact structure, no casting defects, higher bearing capacity and impact resistance than traditional cast pipes.
2. Outstanding High-Temperature Resistance: Special alloy formula and heat treatment process, stable performance under long-term high-temperature, not easy to deform, crack or oxidize.
3. Strong Corrosion & Wear Resistance: Suitable for acid, alkali, high-temperature gas and solid particle conveying working conditions, effectively reduce replacement frequency.
4. High Customization Compatibility: Support non-standard size, special material, end processing, surface treatment and other personalized customization, meet special project needs.
5. Stable Quality & Complete Certificates: Full-process quality control, complete material test reports, NDT reports, heat treatment reports, meet the customs and acceptance requirements of overseas markets.
6. Professional Export Service: Adapt to sea transportation packaging, support TT payment terms, provide complete customs declaration documents, origin certificate and after-sales technical support.
6. Main Application Fields
• Petrochemical Industry: Cracking furnace tubes, reformer tubes, heating furnace tubes, radiant tubes, SADARA special engineering pipes
• Metallurgical Industry: Heat treatment radiant tubes, furnace bottom rollers, sintering furnace high-temperature pipes, heat treatment furnace accessories
• Electric Power Industry: Boiler high-temperature pipes, flue gas pipelines, waste heat recovery equipment pipes
• Industrial Furnace Industry: High-temperature heating furnace pipes, heat treatment equipment core components
• Chemical Industry: Corrosive medium conveying pipes, high-temperature reaction equipment supporting pipes
7. Packaging, Transportation & Service
• Export Packaging: Anti-rust and moisture-proof film full wrapping, fixed with solid wooden pallets or steel frames, reinforced packaging to avoid collision and damage during long-distance ocean transportation.
• Delivery Cycle: 3-7 days for conventional standard products, 10-15 days for customized alloy and size products.
• Payment Terms: T/T (Telegraphic Transfer) accepted, L/C unacceptable.
• After-Sales Guarantee: Provide lifetime technical consultation, installation guidance and material traceability service; all quality problems caused by production and materials will be responsible for free replacement and return.
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