ASTM A182 defines the standard for forged stainless steel piping components. Weld Neck (WN) flanges in grades F304/L, F316/L, and F316Ti are designed for high-integrity butt-welded systems. The "L" grades offer low carbon for superior weldability and corrosion resistance, while F316Ti adds titanium for stabilization against intergranular corrosion at high temperatures. These flanges feature a tapered hub that reinforces the joint, making them ideal for high-pressure and cryogenic service.
Technical Attributes: ASTM A182 Stainless WN
Material Standard,ASTM A182 / ASME SA182
Dimensional Specs,ASME B16.5 / B16.47
Flange Type,Weld Neck (WN)
Grades (304/304L),Standard / Low Carbon 18-8 Stainless
Grades (316/316L),Molybdenum-bearing (High Corrosion Res.)
Grade (316Ti),Titanium-stabilized 316
Pressure Classes,"150, 300, 600, 900, 1500, 2500"
Size Range,1/2"" to 60" (NPS)
Facing,"RF (Raised Face), RTJ (Ring Type Joint)"
Manufacturing,Forged and Solution Annealed
Connection,Butt-weld (Tapered Hub)
Weld Prep,37.5° Bevel (Standard)
Yield Strength,170–205 MPa (Grade dependent)
Tensile Strength,485–515 MPa (Grade dependent)
Temp Range,−254∘C to +815∘C (Varies by grade)
Corrosion Res.,Pitting and crevice corrosion resistant
Traceability,Full MTC per EN 10204 3.1
Common Uses,"Chemical, Food, LNG, & Pharma"
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