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  • TOBO STEEL GROUP CHINA
    Brazil---Aimee
    In the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate.
  • TOBO STEEL GROUP CHINA
    Thailand ---Dave Mulroy
    ASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner .
  • TOBO STEEL GROUP CHINA
    USA ---Alfaro
    ASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
Contact Person : Joy Wang
Phone Number : 0086-21-31261985
WhatsApp : +8613524668060

ANSI B16.5 Alloy Steel ASTM A182 F11/F22 Blind Flange Class 150-2500 Forged Steel Pipe End Closure

  • ANSI B16.5 Alloy Steel ASTM A182 F11/F22 Blind Flange Class 150-2500 Forged Steel Pipe End Closure
  • ANSI B16.5 Alloy Steel ASTM A182 F11/F22 Blind Flange Class 150-2500 Forged Steel Pipe End Closure
  • ANSI B16.5 Alloy Steel ASTM A182 F11/F22 Blind Flange Class 150-2500 Forged Steel Pipe End Closure
  • ANSI B16.5 Alloy Steel ASTM A182 F11/F22 Blind Flange Class 150-2500 Forged Steel Pipe End Closure
  • ANSI B16.5 Alloy Steel ASTM A182 F11/F22 Blind Flange Class 150-2500 Forged Steel Pipe End Closure
Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Forged Steel Flanges
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T,Western Union
Supply Ability 10 Ton/Month
Product Details
Flange Type Blind (BL) Material Alloy Steel ASTM A182 F11/F22
Standard ANSI B16.5 Pressure Class Class 150 To 2500
Size Range 1/2 Inch To 48 Inch Facing Raised Face (RF)
Manufacturing Process Forged
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Alloy Steel Blind Flange

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ASTM A182 F11 F22 Forged

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Class 150 to 2500 RF
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Product Description
ANSI B16.5 Alloy Steel Blind Flange ASTM A182 F11 F22 Class 150-2500 Forged Steel Pipe End Closure
ANSI B16.5 Alloy Steel Blind Flange ASTM A182 F11/F22

The Alloy Steel Blind Flange is a forged pipe end closure component manufactured from ASTM A182 F11/F22 chromium-molybdenum alloy steel. Designed to provide a reliable, positive seal at the termination of piping systems, pressure vessel openings, and valve connections, this blind flange is ideal for high-temperature and high-pressure applications commonly found in refinery, chemical, and power plant environments.

Key Features
  • Chrome-Moly Alloy Steel: ASTM A182 F11/F22 material offers superior strength and creep resistance at elevated temperatures up to 600°C
  • Positive End Closure: Solid round plate design with no center bore provides complete sealing of pipe ends
  • High-Temperature Performance: Specifically designed for sustained operation under high-temperature, high-pressure conditions
  • Full Bolt Hole Pattern: Machined with complete bolt holes matching the corresponding flange specification
  • ANSI B16.5 Compliant: Manufactured to precise ANSI/ASME B16.5 dimensional and material standards
Technical Specifications
Flange Type Blind (BL)
Material Grade Alloy Steel ASTM A182 F11, F12, F22
Standard ANSI B16.5 / ASME B16.5
Pressure Class Class 150, 300, 400, 600, 900, 1500, 2500
Size Range 1/2 inch NB to 48 inch NB
Facing Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Operating Temperature Up to 600 Degree Celsius
Certification ISO, TUV, SGS
Applications
  • Boiler and pressure vessel end closures
  • Pipeline isolation and terminal points
  • Valve and equipment nozzle blanking
  • Refinery high-temperature systems
  • Power plant steam and feedwater piping
  • Hydrogen service and reformer units
Packaging & Delivery
Each blind flange is treated with anti-rust coating and packed in heavy-duty standard shipping packages. Flange faces are protected with plastic caps. Delivery within 15-30 working days.
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butt weld flanges

forgings flanges and fittings

forged fittings and flanges