CARBON STEEL

Carbon steel flanges are commonly manufactured from ASTM A105N, ASTM A350 LF2, and S235JR to meet standards like ANSI B16.5 and EN1092-1.

The specific material grade and standard are selected based on pressure rating, temperature service, fluid type, and flange size requirements.

Material Grades

  • ASTM A105N
    • Description: A widely used standard for forged carbon steel flanges, suitable for both ambient and high-temperature services. 
    • Key Characteristic: Known for its durability, cost-effectiveness, and resistance to breaking. 
  • ASTM A350 LF2
    • Description: A specification for carbon steel forgings, often used when lower temperatures are a factor. 
    • Key Characteristic: Provides good toughness and is suitable for low-temperature applications. 
  • S235JR
    • Description: A low-carbon, mild structural steel suitable for manufacturing flanges for low-pressure applications. 
    • Key Characteristic: Flanges made from S235JR are known for good weldability, toughness, and machinability, but have limited corrosion resistance and are not suitable for high-temperature service.
CARBON STEEL
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ASA150

ASA150

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ASA300

ASA300

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PN10

PN10

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PN16

PN16

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PN25

PN25

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PN40

PN40

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