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CARBON STEEL SEAMLESS PIPE

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Hebei Xinfeng High-pressure Flange and Pipe Fitting Co., Ltd.

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Province/State:hebei

Country/Region:china

Contact Person:MissMandy Liu

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BS 4504 PN10 PN16 PN25 PN40 Standard Blind Flange

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Brand Name :XF

Model Number :XinFeng Flange

Place of Origin :Hebei . CHINA

Certification :ISO9001.PED

MOQ :1Ton

Price :negotiable

Packaging Details :PLYWOODEN CASES / PALLET

Delivery Time :15-45 DAYS

Payment Terms :L/C, D/A, D/P, T/T

Supply Ability :1000-5000 TONS/MONTH

Connection Type :Welding Neck, Slip On, Blind, Socket Welding, Threaded

Application :Petroleum, Chemical, Power, Gas, Metallurgy, Shipbuilding, Construction, Etc.

Flange Type :WN,SO,PL,BL,SW,LF/SE,TH

Certificate :ISO, CE, API, BV, Etc.

Process :Forged

Package :Wooden Cases, Pallets, Etc.

Size :DN15-DN2000, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN2000

Sealing Surface :RF,FF. Black Paint, Yellow Paint,transparent Paint, Cold And Hot Dip Galvanize

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BS 4504 Standard Blind Flanges: Precision Components for Pressure Applications

1. Product Description: BS 4504 Standard Blind Flanges are specialized flanges designed to provide a sealed end in pressure systems and pipelines. These flanges are manufactured to meet the British Standard 4504, which ensures their quality and reliability for various industrial applications. They are available in different pressure ratings, including PN10, PN16, PN25, and PN40, to suit a range of operating conditions.

2. Product Parameters:

Parameter	Description
Type	Blind Flange (also known as Blank Flange)
Sizes	Customizable based on nominal pipe size (NPS)
Specifications	As per client requirements or standard dimensions
Standard	BS 4504
Material	Carbon Steel, Stainless Steel (e.g., 304, 316), or other alloys
Surface Treatment	As-forged, galvanized, painted, or coated with anti-corrosive material

3. Mechanical Properties:

Property	Typical Requirements
Tensile Strength	Typically above 400 MPa, depending on material grade
Yield Strength	Typically above 240 MPa
Elongation	≥20% for most material grades
Hardness	Varies depending on heat treatment and material grade

4. Pressure Ratings:

Pressure Class	Description
PN10	10 bar (145 psi)
PN16	16 bar (232 psi)
PN25	25 bar (362 psi)
PN40	40 bar (580 psi)

5. Chemical Composition:

Element	Typical Range (%) for Carbon Steel	Typical Range (%) for Stainless Steel 304	Typical Range (%) for Stainless Steel 316
Carbon	0.15 - 0.30	≤0.08	≤0.08
Manganese	0.50 - 1.60	≤2.00	≤2.00
Phosphorus	≤0.045	≤0.045	≤0.045
Sulfur	≤0.045	≤0.030	≤0.020
Silicon	≤0.30	≤1.00	≤1.00
Chromium	-	18.0 - 20.0	16.0 - 18.0
Nickel	-	8.0 - 10.5	10.0 - 14.0

6. Product Uses:

Pressure Vessels: Used to close off the ends of pressure vessels.
Piping Systems: Ideal for creating a closed or "blind" end in a pipeline.
Industrial Plants: Employed in various industrial plants for maintenance and testing purposes.
Machinery and Equipment: Utilized in machinery that requires flanged connections.

7. Product Grade Standards:

BS 4504: The flanges are manufactured in compliance with the British Standard 4504, which specifies the requirements for steel flanges for pressure purposes.

Conclusion: BS 4504 Standard Blind Flanges are versatile and robust, offering a reliable solution for pressure applications where a sealed or closed end is required. Their adherence to BS 4504 ensures that these flanges are manufactured to high standards of quality and safety, making them suitable for a wide range of industrial uses.

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