Carbon Steel Flange

Product Description:

Carbon steel flanges are used for connecting pipes, valves, pumps, and other equipment to form a piping system. These flanges provide high strength, durability, and excellent resistance to high pressure and temperature applications.

Material Specifications:

• Material: Carbon Steel (ASTM A105, A350 LF2, A694 F52/F60/F65, etc.)
• Manufacturing Process: Forged / Cast / Plate Cut
• Surface Finish: Black, Galvanized, Anti-rust Oil Coating
• Heat Treatment: Normalized, Quenched & Tempered, Annealed (as per requirement)

Flange Types:

• Weld Neck (WN) Flange
• Slip-On (SO) Flange
• Socket Weld (SW) Flange
• Threaded (TH) Flange
• Blind (BL) Flange
• Lap Joint (LJ) Flange
• Orifice Flange

Pressure Ratings:

• ANSI/ASME B16.5: Class 150, 300, 600, 900, 1500, 2500
• DIN Standards: PN6, PN10, PN16, PN25, PN40, PN64
• AWWA, BS, EN, JIS, GOST, API Standards available upon request

Dimensions & Tolerances:

• Standard: ANSI B16.5, ANSI B16.47 (Series A & B), MSS SP-44, API 605
• Size Range: 1/2″ (15mm) to 48″ (1200mm)
• Face Type: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
• Bore Size: Standard & Custom

Mechanical Properties:

• Tensile Strength: 485 – 655 MPa
• Yield Strength: 250 – 450 MPa
• Elongation: 22% min
• Hardness: 197 HB max (Brinell)

Chemical Composition (Typical for ASTM A105):

• Carbon (C): 0.35% max
• Manganese (Mn): 0.60 – 1.05%
• Phosphorus (P): 0.035% max
• Sulfur (S): 0.040% max
• Silicon (Si): 0.10 – 0.35%

Testing & Inspection:

• Hydrostatic Testing
• Magnetic Particle Inspection (MPI)
• Ultrasonic Testing (UT)
• Radiographic Testing (RT)
• PMI (Positive Material Identification)
• Third-Party Inspection available

Applications:

• Oil & Gas Pipelines
• Petrochemical & Refinery Plants
• Power Plants & Nuclear Industries
• Water Treatment & Marine Applications
• Heavy Machinery & Construction

Packing & Delivery:

• Packing: Wooden Cases, Pallets, or as per customer requirement
• Marking: Standard markings per ANSI/ASME standards (size, class, material, heat number)
• Delivery Time: 2-6 weeks depending on order quantity