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2:1 S31603 Ellipsoidal Head 650mm Open Inner Diameter 5mm Thickness

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2:1 S31603 Ellipsoidal Head 650mm Open Inner Diameter 5mm Thickness

Brand Name : Guojiang

Model Number : EHA 650×5

Certification : ASME, PED, GB, ISO

Place of Origin : Henan, China

MOQ : 1

Price : $25-10000

Payment Terms : T/T,L/C

Supply Ability : 50,000 pieces per month

Delivery Time : 10-30 days

Packaging Details : Wooden cases, wooden pallets, steel pallets, or customized according to customer requirements

Diameter : 76mm - 10000mm

Thickness : 1mm -300mm

Roughness : RA 0.1-0.8μm

Customization : Customise products according to the drawings and the requirements

Material : 304, 316, 321, 2205, Q235, A36, Q245R, Q345R, SA-516Gr.60/65/70, 16MnDR, S275JR

Downstream Aplications : Industrial Dewar flask heads,on-board gas cylinder heads,quick-cooling storage tank heads,on-board storage tank heads,heads for food and medical equipment, ,water purification filter pipeline end cap，and heads for magnetic resonance equipment.

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2:1 S31603 Ellipsoidal Head 650mm Open Inner Diameter 5mm Thickness

650mm diameter, 5mm thickness, cold-formed S31603 stainless steel dished head with RA 0.4 μm precision polishing, specifically engineered for LNG cryogenic tank applications.

Technical Specifications
Brand Name GuoJiang
Diameter Range 70mm - 10000mm
Thickness Range 2mm - 300mm
Reduction Ratio About 10%
Material Options
  • Carbon Steel (Q345R, Q235B, SA516 Gr.60/70)
  • Stainless Steel (SUS304, SUS316L, SUS321)
  • Duplex/Super Duplex (S31803, S32750)
  • Aluminium (6061, 5052)
  • Nickel & Nickel Alloys (Inconel 600, Hastelloy C276)
  • Copper & Copper Alloys (T2, H62)
  • Titanium & Its Alloys (Gr.2, Gr.5)
  • Zirconium & Cladded Materials
Key Features
Precision Dimensions: 650mm inner diameter with 5mm nominal wall thickness
Premium Material: S31603 stainless steel construction
Surface Finish: RA 0.4μm polishing on both surfaces
Performance: Superior corrosion resistance and reduced fluid resistance
Hygienic: Minimal medium residue for easy cleaning
Manufacturing Processes
Forming Methods:
  • Hot Forming for thick materials (≥20mm) or high-strength alloys
  • Cold Forming for thin materials (≤20mm) and stainless steel
Surface Treatment Options:
  • Oil Coating (food-grade optional)
  • Sand Blasting (Ra 1.6μm - 3.2μm)
  • Pickling for passivation film formation
  • Mechanical/Chemical Descaling
  • Custom finishes, including mirror polishing (Ra≤0.8μm)
Quality Assurance
Inspection Standards:
  • PT (Liquid Penetrant Testing)
  • UT (Ultrasonic Testing)
  • RT (Radiographic Testing)
  • MT (Magnetic Particle Testing)
Certifications:
  • ISO 9001:2015
  • ASME "U" Stamp
  • PED Module H Certificate
Applications

Ideal for cryogenic gas cylinders, pressure vessels, nuclear magnetic resonance (NMR), food/pharmaceutical processing, and new energy applications. Market leader in cryogenic dewar heads with over 70% market share in China.

Packaging Options
  • Wooden Pallets (stackable, ≥1000kg capacity)
  • Wooden Cases (waterproof, shockproof)
  • Steel Pallets (for heavy heads ≥500kg)
  • Custom packaging solutions available
Customized Services
  • Full customisation of size, material, forming method, and surface treatment
  • Technical support, including FEA simulation and 2D/3D drawing design
  • Sample service available (5-10 pieces)
  • Quick turnaround: 20 days for standard heads, 30 days for custom orders

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2:1 S31603 Ellipsoidal Head 650mm Open Inner Diameter 5mm Thickness Images

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