316L Stainless Steel Spherical Cap Head 679mm Diameter 5mm Thickness

Item

Key Data

Diameter

679mm (suitable for mainstream equipment such as small and medium-sized pressure vessels and storage tanks)

Wall Thickness

5mm (designed with pressure calibration, balancing structural strength and lightweight to reduce the overall load of equipment)

Material

316L Stainless Steel (contains molybdenum element, forms a stable passive film, resistant to acids, alkalis and chloride ions, and meets hygiene requirements)

Reduction Ratio

Approximately 10% (adjustable for special materials, balancing material utilization, structural strength and forming accuracy)

Brand

GuoJiang (with over 12 years of experience in R&D and production of heads, covering customers in more than 10 countries)

Item

Key Data

Forming Methods

1. Hot Forming: Applicable to thick-walled materials/high-strength alloys, stress relief annealing required after forming; 2. Cold Forming: Suitable for thin materials/316L stainless steel, no thermal deformation

Surface Treatment

1. Sand Blasting: Ra 1.6μm - 3.2μm (enhances coating adhesion); 2. Pickling: Forms a passive film (improves corrosion resistance, meets hygiene standards); 3. Oil Coating: Food-grade anti-rust oil optional; 4. Descaling: Mechanical/chemical descaling (ensures clean surface before welding); 5. Customization: Such as mirror polishing for high-cleanliness fields

Inspection Standards

1. Ultrasonic Testing (UT): 100% coverage of key parts to detect internal cracks and inclusions; 2. Radiographic Testing (RT): Complies with ASME BPVC Sec.V Level II standards; 3. Magnetic Particle Testing (MT): For ferrous materials, detects surface/near-surface defects; 4. Penetrant Testing (PT): For non-ferrous materials, ensures no surface leakage; 5. Time of Flight Diffraction (TOFD): Accuracy ±0.1mm, detects internal defects

Item

Key Data

Applicable Standards

1. International Standards: ASME BPVC Sec.VIII Div.1/2 (North America and global), PED 2014/68/EU (CE certification for European markets); 2. National Standards: GB/T 25198-2010 (China); 3. Regional Standards: Adaptable to JIS B8243, EN 13445

Certifications

1. ISO 9001:2015 Quality Management System Certification; 2. ASME "U" Stamp; 3. PED Module H Certification

Application Industry

Applicable Equipment/Scenarios

Chemical Industry

Small and medium-sized reactors, corrosive medium storage tanks (316L material resists acid and alkali erosion)

Food and Pharmaceutical Industry

Food sauce storage tanks, pharmaceutical raw material reaction vessels (meets hygiene standards, avoids material contamination)

New Energy Field

Hydrogen storage tanks, lithium battery material mixing equipment (lightweight design + corrosion resistance)

Water Treatment Industry

Pressure chamber heads for reverse osmosis equipment (resistant to chloride ion corrosion, suitable for complex medium environments)

Item

Key Data

Packaging Solutions

1. Wooden Cases: For small precision heads, waterproof and shockproof, export-grade fumigation; 2. Wooden Pallets: For bulk orders, stackable, load capacity ≥1000kg; 3. Steel Pallets: For heavy heads (≥500kg), reusable, corrosion-resistant; 4. Customized Packaging: Such as vacuum packaging for stainless steel heads, seaworthy packaging for export shipping

Customization and After-Sales Services

1. Customization Services: Adjust size, material, forming process, etc. according to drawings; 2. Technical Support: Free FEA pressure simulation, 2D/3D drawing design; 3. Sample Service: Small-batch sample testing (5-10 pieces); 4. Delivery Cycle: 20 days for standard heads, 30 days for customized heads;