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ASTM A182 F310S Stainless Steel Flanges High Temperature & Corrosion Resistant

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Flanges that we provide is the forged or casted ring that is developed for connecting the piping sections or any other machinery that needs the intermediate connecting points. Flanges are used for joining each other through bolting or are joined to the piping system through threading or welding.

Description

Table Of Content
Stainless Steel Flange

ASTM A182 F310S Stainless Steel Flanges are forged flanges manufactured from low-carbon, high-temperature austenitic stainless steel grade 310S. This alloy offers excellent resistance to oxidation, sulfidation, and carburization at elevated temperatures, making it ideal for high-heat applications in industries such as petrochemical, power generation, furnace manufacturing, and chemical processing.The low carbon content of 310S enhances weldability and reduces the risk of sensitization and intergranular corrosion during welding or high-temperature service. ASTM A182 F310S flanges are available in a wide range of types including weld neck, slip-on, blind, and socket weld, with pressure classes ranging from Class 150 to Class 2500.These flanges comply with international standards such as ASME B16.5, B16.47, and EN 1092-1, ensuring compatibility with global piping systems.ASTM A182 F310S stainless steel flanges are forged components designed for use in high-temperature and highly corrosive industrial environments. Grade 310S is the low-carbon version of 310 stainless steel, offering superior weldability and resistance to sensitization compared to standard 310. 

Machined raised face flange with eight bolt holes
What is ASTM A182 310 / 310S / 310H SS Flanges?

  • ASTM A182 310 / 310S / 310H Stainless Steel Flanges are forged or rolled alloy flanges made from heat-resistant stainless steel grades in the 310 family, designed for high-temperature and corrosive service applications.

    Here’s a breakdown of each grade:

    • 310: A high-alloy austenitic stainless steel with excellent resistance to oxidation and scaling at elevated temperatures (up to 1100°C). It contains high chromium (25-28%) and nickel (19-22%) content.

    • 310S: A low-carbon version of 310, designed to improve weldability and reduce the risk of sensitization (intergranular corrosion) after welding. Ideal for applications where frequent thermal cycling is expected.

    • 310H: A high-carbon version of 310, offering improved creep strength and better performance in high-temperature environments, particularly in pressure-containing components.

Specification For Stainless Steel ASTM A182 310 / 310S / 310H Industrial Flanges

SpecificationsASTM A182 / A240 & ASME SA182 / SA240
DimensionsANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
StandardANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face TypeFlate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

SS 310 / 310S / 310H Flange Standards / Types And Pressure Class

Flange Standards / Types And Pressure Class
ASME/ANSI B 16.5Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange
PRESSURE CLASS150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47Welding Neck Flange, Blind Flange [Series A & B]
PRESSURE CLASS75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36Welding Neck Flange, Slip on Flange, Threaded Flange
PRESSURE CLASS300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange
PRESSURE CLASSPN 2.5 TO PN 40
BS 4504[PART 1]Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange
PRESSURE CLASSPN 2.5 TO PN 400
BS 1560 BOSSWelding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange
PRESSURE CLASS150, 300, 400, 600, 900, 1500, 2500
BS10Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange
TABLED, E, F, H
DIN FLANGESDIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASSPN 6 TO PN 100

ASME SA182 310 / 310S / 310H Stainless Steel Flanges Equivalent Grades
STANDARDWERKSTOFF NR.UNSJISBSGOSTAFNOREN
SS 3101.4841S31000SUS 310310S2420Ch25N20S2–X15CrNi25-20
SS 310S1.4845S31008SUS 310S310S1620Ch23N18–X8CrNi25-21
SS 310H–S31009–––––
Types Of Grade F310 / 310S / 310H Stainless Steel Flanges
blind-flangeslap-joint-flangeslong-weld-neck-flangesplate-flanges
Blind FlangesLap Joint FlangesLong Weld Neck Flanges Plate Flanges
reducing-flangesrtj-flangesslip-on-flangessocket-weld-flanges
Reducing Flanges Ring Type Joint Flanges Slip On FlangesSocket Weld Flanges
weld-neck-flangestongue-groove-flangesthreaded-flangesspectacle-blind-flanges
Weld Neck FlangesTongue & Groove FlangesThreaded / Screwed Flanges Spectacle Blind Flanges

Chemical Composition of Grade F310 / 310S / 310H Stainless Steel Pipe Flanges
GradeCMnSiPSCrMoNiN
SS 3100.015 max2.0 max0.15 max0.020 max0.015 max24.00 – 26.000.10 max19.00 – 21.0054.7 min
SS 310S0.08 max2.0 max1.00 max0.045 max0.030 max24.00 – 26.000.75 max19.00 – 21.0053.095 min
SS 310H0.04 – 0.102.0 max1.00 max0.045 max0.030 max24.00 – 26.00–19.00 – 21.0053.885 min
Mechanical Properties of ASTM A182 SS 310 / 310S / 310H Plate Flanges
DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
7.9 g/cm31402 °C (2555 °F)Psi – 75000 , MPa – 515Psi – 30000 , MPa – 20540 %
Stainless Steel 310 / 310S / 310H AISI, ASME, DIN, BS, EN Flanges Application
IndustryApplication Areas
Petrochemical & RefiningHeat exchangers, furnace components, flanged process lines, catalytic reformers
Power GenerationSuperheater tubes, boiler components, turbine exhaust lines, flanged connections
Heat TreatmentRadiant tubes, muffles, retorts, flanged burners, conveyor systems in heat treatment
Chemical ProcessingFlanged pipe systems for nitric/sulfuric acid environments, reaction vessels
Cement IndustryPreheater cyclones, flanged kiln gas ducts, cooler tubes
Oil & GasSour gas service piping, offshore structural components, high-temperature flanges
Furnace ConstructionCombustion chambers, flanged manifolds, sealing flanges in refractory environments
Pharmaceutical & FoodHigh-temperature sterile lines, oxidation-resistant flanged piping (typically 310S)
Marine & ShipbuildingHigh-temperature exhaust systems, seawater-resistant flanged fittings
Pulp & PaperRecovery boilers, bleaching equipment, high-temp chemical piping
ASTM A182 F310 / 310S / 310H Stainless Steel Flanges Available Types
Flange TypeDescription & Common Use
Weld Neck Flange (WN)For high-pressure and high-temperature applications; long tapered hub for stress distribution.
Slip-On Flange (SO)Easy to install and align; suitable for low-pressure, moderate temperature piping systems.
Socket Weld Flange (SW)Used for small-diameter, high-pressure pipelines; welds inside the socket.
Blind Flange (BL)Closes the end of pipes, valves, or pressure vessel openings; used for inspection access.
Threaded Flange (TH)Screwed-on connection, ideal for non-welded piping systems and flammable/explosive environments.
Lap Joint Flange (LJ)Used with a stub end; ideal for systems requiring frequent dismantling and inspection.
Long Weld Neck Flange (LWN)Extended neck; used in high-pressure vessel applications and nozzle connections.
Spectacle Blind FlangeA safety device used to isolate pipeline sections; two discs (open and closed) for switching.
Orifice FlangeDesigned for flow measurement; comes with pressure taps for differential pressure gauges.
Ring-Type Joint Flange (RTJ)For high-pressure, high-temperature applications with metal ring gaskets for leak-proof sealing.

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