Stainless Steel Forged Flanges (ASTM A182, ASME B16.5, DIN, and JIS etc.)

As a premier supplier of industrial piping components, we provide full-range forged flanges engineered to meet international standards (ASME, DIN, JIS, BS, EN) for seamless integration into critical pipeline systems. From standard slip-on flanges to specialized orifice configurations, our inventory covers all major types and pressure classes, ensuring reliable sealing and structural integrity in oil & gas, chemical processing, power generation, and marine applications.

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product details

Key Features

Material Superiority: Molybdenum-enriched grades (e.g., F316L with 2.1% Mo) and duplex stainless steels combat chloride-induced pitting, acidic erosion, and stress corrosion cracking, validated by EN 10204 3.1-certified chemistry reports.

Pressure Mastery: Rated from Class 150 (PN6) to Class 2500 (PN420), with CNC-machined RF/RTJ/FF faces achieving ≤3.2μm surface roughness for ASME B16.5-compliant sealing under cyclic 6,500 psi loads.

Thermal Adaptability: Stable performance from cryogenic LNG applications (-268°C) to refinery steam lines (650°C), resisting deformation in thermal shock scenarios.

Product Specification

Material: ASTM A182 grades (F304/F304L/F316L/F321), duplex steels (2205/2507), and carbon steel A105, with full traceability to EN 10204 3.1 standards.

Size&Pressure: ANSI(CLASS 150–CLASS 2500)BS (1/2"–48"), DIN (DN10–DN2000), and JIS (5K–30K) specifications with RF/RTJ/FF face types for universal compatibility.

Types: Slip-On,Welding Neck,Blind,Socket Weld,Threaded,Lap Joint,Orifice,Plate,Ring Joint

Marking: All Flanges are marked as follows:,Specifications,Standard,Grade,Heat NO. (or as per customers’ requirement)

Packing: With Plastic Caps And Plastic Bubles For Each Piece, and Then Pack Into Woodn Boxes