S30403 Flat Dished Head 1761×10 is a large-scale pressure-bearing component suitable for medium and high-pressure working conditions, with specifications of 1761mm in diameter and 10mm in thickness, core made of high-quality S30403 stainless steel (equivalent to 304L). Relying on its reasonably large structure, reliable pressure-bearing performance and stable structural rigidity, this product is applicable to large-capacity storage and high-flow medium transmission scenarios, especially suitable for large-scale container equipment requiring equipment tightness, impact resistance and corrosion resistance, providing stable support for heavy-duty working conditions in multiple industries.

S30403 stainless steel (food-grade certified) is an extra-low carbon material with a carbon content of ≤0.03%, excellent low-temperature toughness and good corrosion resistance to atmospheric and weak acid-base media. Raw materials are sourced from certified suppliers such as Taiyuan Iron and Steel and Baosteel, with complete Material Test Certificates (MTCs). The quality is traceable and the performance is stable, which can meet the long-term use requirements under medium and high-pressure working conditions.

Cold forming via a thousand-ton hydraulic press ensures the integrity of the material's internal structure, free of cracks, wrinkles and other defects. The head has a smooth and flat surface, with dimensional accuracy meeting industrial-grade installation standards, suitable for the precise assembly of large-scale containers.

• Passivation: Enhances surface resistance to weak acids and alkalis, extending service life
• Standard: Chemical polishing (Ra ≤ 1.6μm) to ensure surface cleanliness
• Custom: Mirror polishing (Ra ≤ 0.8μm) or sandblasting (Ra 1.6μm-3.2μm), suitable for hygienic or industrial scenarios

• 100% Ultrasonic Testing (UT)
• Penetrant Testing (PT)
• Precision dimensional verification
• Visual surface inspection

Compliant with GB/T 25198-2010, ASME BPVC Sec.VIII Div 1, PED 2014/68/EU, JIS B8243 standards. Certifications include ISO 9001:2015 Quality Management System, ASME "U" Stamp, and Food Contact Material Certification, ensuring qualified and reliable quality.

• Bulk pallets (6-10 pieces per pallet)
• Single-head wooden cases (fumigated)
• Custom vacuum packaging (moisture and corrosion-proof)

• Personalised adjustment of opening size
• Customised surface treatment processes
• Delivery time: 18 days (standard), 28 days (customised)

• Petrochemical Industry: Large raw material storage tanks, chemical medium transmission tanks
• Energy Industry: Natural gas buffer tanks, conventional energy storage equipment
• Food and Beverage Industry: Large-scale raw material storage tanks, large blending tanks
• Municipal Environmental Protection Industry: Urban wastewater treatment tanks, reclaimed water reuse storage tanks
• Machinery Manufacturing Industry: Hydraulic oil tanks for heavy equipment, large energy storage tanks