Polished Stainless Steel Torispherical Dished Head RA 0.3μM For LNG Cryogenic Tanks

Cold-formed SUS304 stainless steel dished head with RA 0.3μm precision polishing, specifically engineered for LNG cryogenic tank applications.

Forming Methods:

• Hot Forming for thick materials (≥20mm) or high-strength alloys
• Cold Forming for thin materials (≤20mm) and stainless steel

Surface Treatment Options:

• Sand Blasting (Ra 1.6μm - 3.2μm)
• Pickling for passivation film formation
• Oil Coating (food-grade optional)
• Mechanical/Chemical Descaling
• Custom finishes, including mirror polishing (Ra≤0.8μm)

Inspection Standards:

• UT (Ultrasonic Testing)
• RT (Radiographic Testing)
• MT (Magnetic Particle Testing)
• PT (Liquid Penetrant Testing)
• TOFD (Time of Flight Diffraction)

Certifications:

• ISO 9001:2015
• ASME "U" Stamp
• PED Module H Certificate

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.

• Wooden Cases (waterproof, shockproof)
• Wooden Pallets (stackable, ≥1000kg capacity)
• Steel Pallets (for heavy heads ≥500kg)
• Custom packaging solutions available

• 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