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Henan Guojiang Precision Head Co., Ltd

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City:xinxiang

Province/State:henan

Country/Region:china

Contact Person:MsJessie Liu

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Stainless Steel Polished Head S30408 Reducing Dished Head 500mm Diameter 2.5mm Thickness

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Brand Name :GJ

Model Number :EHA 500×2.5

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

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

Diameter :76mm - 10000mm

Thickness :1mm -300mm

Customization :Customise products according to the drawings and the requirements

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.

Roughness :RA 0.1-0.8μm

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Polished Stainless Steel reducing head with 500mm Diameter and 3mm Thickness

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

Technical Specifications

Brand Name	GuoJiang
Diameter Range	76mm - 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: 1200mm inner diameter with 3mm nominal wall thickness

Premium Material: Food-grade S30408 stainless steel construction

Surface Finish: RA 0.3μm mirror 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:

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)

Quality Assurance

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

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

Customized Services

Full customization 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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