316L Stainless Steel Spherical Cap Head - Custom 813×8 Size (Sample Available,

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Price： $25-10000
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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	813mm
Wall Thickness	8mm
Roughness	RA 0.1-0.8μm
Thickness	1mm -300mm
Material	Aluminum, 304, 316, 321, 2205, Q235, A36, Q245R, Q345R, SA-516Gr.60/65/70, 16MnDR, S275JR etc..
Customization	Customise products according to the drawings and the requirements
Brand Name	Guojiang
Model Number	SH 813×8
Certification	ASME, PED, GB, ISO
Place of Origin	Henan, China

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Product Specification


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	813mm	Wall Thickness	8mm
Roughness	RA 0.1-0.8μm	Thickness	1mm -300mm
Material	Aluminum, 304, 316, 321, 2205, Q235, A36, Q245R, Q345R, SA-516Gr.60/65/70, 16MnDR, S275JR etc..	Customization	Customise products according to the drawings and the requirements
Brand Name	Guojiang	Model Number	SH 813×8
Certification	ASME, PED, GB, ISO	Place of Origin	Henan, China
High Light	316L stainless steel spherical cap head ，custom 813×8 spherical cap head ，fast delivery spherical cap head

Compared with elliptical dished heads, spherical dished heads offer superior pressure-bearing performance but involve higher manufacturing difficulty. As a result, elliptical structures are more commonly used in medium and low-pressure vessels. When the design pressure exceeds 10MPa, the use of spherical dished heads can reduce wall thickness, significantly lowering material costs. In storage-type vessels, their geometric characteristics can increase the effective volume by more than 15%.

Product Specifications

Item	Key Data
Diameter	813mm
Wall Thickness	8mm
Material	SA-240M 316L
Reduction Ratio	Approximately 10%
Brand	GuoJiang

Production & Processing Details

Item	Key Data
Forming Methods	Hot Forming: Applicable to thick-walled materials/high-strength alloys; stress relief annealing required after forming Cold Forming: Suitable for 8mm-thick 316L stainless steel; no thermal deformation, ensuring structural precision
Surface Treatment	Sand Blasting: Ra 1.6μm - 3.2μm (enhances coating adhesion) Pickling: Forms a passive film (improves corrosion resistance, meets hygiene standards) Oil Coating: Food-grade anti-rust oil optional Descaling: Mechanical/chemical descaling (ensures a clean surface before welding) Customisation: E.g., mirror polishing for highly clean fields
Inspection Standards	Ultrasonic Testing (UT): 100% coverage of key parts to detect internal cracks and inclusions Radiographic Testing (RT): Complies with ASME BPVC Sec.V Level II standards Penetrant Testing (PT): For non-ferrous materials, ensuring no surface leakage Time of Flight Diffraction (TOFD): Accuracy ±0.1mm, precisely detects internal defects

Standards & Certifications

Item	Key Data
Applicable Standards	International Standards: ASME BPVC Sec.VIII Div.1/2 (North America & global), PED 2014/68/EU (CE certification for European markets) National Standards: GB/T 25198-2023 (China) Regional Standards: Adaptable to JIS B8243, EN 13445
Certifications	ISO 9001:2015 Quality Management System Certification ASME "U" Stamp PED Module H Certification

Application Scenarios

Application Industry	Applicable Equipment/Scenarios
Chemical Industry	Small and medium-sized reactors, corrosive medium storage tanks (316L material resists acid and alkali erosion)
Food & Pharmaceutical Industry	Food sauce storage tanks, pharmaceutical raw material reaction vessels (meet hygiene standards, avoid material contamination)
New Energy Field	Hydrogen storage tanks, lithium battery material mixing equipment (lightweight design + corrosion resistance)
Water Treatment Industry	Pressure chamber heads for reverse osmosis equipment (resists chloride ion corrosion, suitable for complex medium environments)

Packaging & Services

Item	Key Data
Packaging Solutions	Wooden Cases: For precision heads, waterproof and shockproof, export-grade fumigation Wooden Pallets: For bulk orders, stackable, load capacity ≥1000kg Steel Pallets: For heavy heads (≥500kg), reusable, corrosion-resistant Customised Packaging: E.g., vacuum packaging for stainless steel heads, seaworthy packaging for export shipping
Customisation & After-Sales Services	Customisation Services: Adjust size, material, forming process, etc., according to drawings Technical Support: Free FEA pressure simulation, 2D/3D drawing design Sample Service: Small-batch sample testing (5-10 units) Delivery Cycle: 20 days for standard heads, 30 days for customised heads

Company Details

Bronze Gleitlager

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and

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from Quality China Factory

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Business Type:

Manufacturer,Seller,Exporter 


Year Established:

2013 


Total Annual:

20,000,000-USD 40,000,000


Employee Number:

>100 


Ecer Certification：

Verified Supplier 

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Reach Us
Henan Guojiang Precision Formed Head Co., Ltd.
Yangguang Road, Industrial Park, Qiliying Town, Xinxiang County, Xinxiang City, Henan Province, People’s Republic of China
https://www.ellipsoidalhead.com/

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