2500mm×8mm S30408 Flat Bottom Head: ISO 9001 Certified, Suitable for Chemical/Food/Nuclear Power Scenarios

The flat dished head with a diameter of 2500mm, thickness of 8mm (mainly compatible with materials such as S30408, 316L, and Q345R) relies on its large-size structure, high-strength pressure-bearing performance, and stable structural rigidity. It is suitable for large-scale container equipment under medium and high-pressure working conditions, especially for scenarios requiring large-capacity storage, high-flow medium transmission, and demanding requirements for equipment tightness and impact resistance.

S30408 stainless steel (food-grade certified) offers outstanding corrosion resistance against atmospheric and weak acid-base media. Raw materials are sourced from certified suppliers, including Taiyuan Iron and Steel and Baosteel, with complete Material Test Certificates (MTCs) for reliable and traceable quality.

Cold forming via a thousand-ton hydraulic press ensures the integrity of the material's internal structure. The head has a smooth and flat surface without cracks or wrinkles, and its dimensional accuracy meets industrial-grade installation requirements.

• Standard: Chemical polishing (Ra ≤ 1.6μm)
• Passivation: Enhanced surface resistance to weak acids and alkalis
• Custom: Mirror polishing (Ra ≤ 0.8μm) or sandblasting (Ra 1.6μm-3.2μm)

• 100% Ultrasonic Testing (UT)
• Penetrant Testing (PT)
• Precision dimensional verification
• 1.5× rated pressure sampling tests
• Visual surface inspection

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

• Single-head wooden cases (fumigated)
• Bulk pallets (10-15 pieces per pallet)
• Custom vacuum packaging

• Personalised adjustment of opening size
• Customised surface treatment processes
• Sample testing (3-5 units)
• Delivery time: 15 days (standard), 25 days (customised)