Prominent & Leading Service Provider from Mumbai, we offer alloy steel flanges, alloy steel flange, alloy steel f91 slip on flanges, alloy steel f11 weld neck flange, alloy steel f11 slip on flanges and alloy steel blind flanges.
₹ 1250 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 3 in |
| Pressure Rating | 150 Class |
| Steel Grade | A182 F1 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
₹ 156 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 0.75 in |
| Pressure Rating | 150 Class |
| Steel Grade | A182 F1 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
Alloy steel flanges are forged components from chrome-molybdenum alloys like F11, F22, or F91 (ASTM A182), engineered for high-temperature/pressure bolting in power plants and refineries. They resist creep/oxidation up to 1200°F, available as weld neck, slip-on, socket weld, blind, or RTJ types matching prior CS/mild steel variants and SS fittings.
TypesWeld Neck: Tapered hub minimizes stress in cyclic service.
Slip-On/Socket: Economical double-weld for smaller bores.
Classes 150#-2500# per ASME B16.5; F22 (2.25Cr-1Mo) tensile ≥515 MPa, sizes 1/2"-60" NPS.
₹ 150 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 0.75 in |
| Pressure Rating | 150 Class |
| Steel Grade | A182 F91 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
Alloy Steel F22 socket weld flanges are forged components from ASTM A182 Grade F22 (2.25Cr-1Mo) designed for high-temperature, high-pressure small-bore piping, featuring a socket for pipe insertion and fillet welding before bolting. Slip-on variants slide over pipe ends (double-welded inside/outside) for cost-effective connections in refineries and power plants, complementing prior F22 WNRTJ/socket weld flanges, SS fittings, and reducers.
Key FeaturesF91 grade offers superior creep strength to 1200°F with 9Cr-1Mo-V composition; classes 3000#-9000# per ASME B16.11, sizes 1/2"-4" NPS match socket weld patterns but with slip-on bore slightly larger than ID.
SpecificationsTolerances ensure weld alignment; used where full penetration isn't critical vs weld neck types.
₹ 150 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 12 |
| Pressure Rating | 2500 Class |
| Steel Grade | A182 F11 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
| Origin | Indian Make |
₹ 150 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 8 in |
| Pressure Rating | 150 Class |
| Steel Grade | A182 F11 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
₹ 150 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 8 in |
| Pressure Rating | 1500 Class |
| Steel Grade | A182 F11 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
| Origin | Indian Make |
₹ 150 / Piece Get Latest Price
| Flange Type | Weld Neck |
| Nominal Size | 2 in |
| Pressure Rating | 150 Class |
| Steel Grade | A182 F11 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
| Origin | Indian Make |
₹ 150 / Piece Get Latest Price
| Flange Type | Blind |
| Nominal Size | 8 in |
| Pressure Rating | 150 Class |
| Steel Grade | A182 F11 |
| Standard | ANSI B16.5 |
| Facing | Raised Face |
| Finish | Machined |
| End Connection | Raised Face |
| Origin | Indian Make |
₹ 150 / Piece Get Latest Price
| Size | 2 in |
| Pressure Class | 150 |
| Material | CS ASTM A105 |
| Standard | ASME B16.5 |
| Facing | Raised Face |
| Schedule | SCH 40 |
| Flange Type | Weld Neck |
| Surface Finish | Machined |
| Coating | Black Paint |
SS 316L WNRF flanges are forged stainless steel weld neck raised face flanges made from low-carbon austenitic alloy, ideal for high-pressure, corrosive environments in chemical, marine, and pharmaceutical piping systems.
Material CompositionASTM A182 F316L grade contains ≤0.03% carbon, ≤2.0% manganese, ≤0.75% silicon, 16.0-18.0% chromium, 10.0-14.0% nickel, 2.0-3.0% molybdenum, P≤0.045%, and S≤0.030% for excellent pitting resistance.
Mechanical PropertiesThese flanges offer minimum 515 MPa tensile strength, 205 MPa yield strength, and 35% elongation, with density of 8.0 g/cm³ and service from cryogenic temperatures to 870°C.
Dimensions and StandardsPer ASME B16.5, sizes range 1/2"-24" NB in Class 150-2500 (e.g., Class 150 1/2": flange OD 89mm, bolt circle 60mm, 4x13mm bolts; Class 300 2": OD 165mm, thickness 22mm, raised face 1.6mm).
₹ 150 / Piece Get Latest Price
₹ 150 / Piece Get Latest Price
| Material Grade | ASTM A182 F22 |
| Flange Type | Weld Neck |
| Pressure Class | 900 |
| ASTM Standard | ASTM A182 |
| Size | 6 inch |
| Face Type | Raised Face |
| Testing | Hardness |
| Certification | IBR |
Stainless steel flanges are forged or cast components used to connect pipes, valves, and pumps in industrial piping systems, offering superior corrosion resistance in harsh environments. They adhere to standards like ASME B16.5, ASTM A182, and ANSI, with common grades including 304, 316, and 316L for applications in chemicals, oil & gas, and pharmaceuticals.
Main TypesWeld Neck Flange: Tapered hub provides strength and stress reduction for high-pressure lines.
Slip-On Flange: Slides over pipe ends and welds inside/outside, cost-effective for moderate pressures.
Blind Flange: Seals pipe ends, used for testing or isolation.
Socket Weld & Threaded: For smaller, high-pressure pipes with welding or threading.
Flanges range from Class 150 to 2500, sizes 1/2" to 60", with raised face (RF), flat face (FF), or ring type joint (RTJ) faces for gasketing. SS 304/316 ensures durability up to 1000°F.
₹ 150 / Piece Get Latest Price
| Material Grade | Duplex 2205 |
| Flange Type | Weld Neck |
| Pressure Rating | 300 |
| Size | 6 in |
| Standard | ASME B16.5 |
| Finish | Machined |
Stainless Steel Duplex Flanges are high-strength fittings made from duplex stainless steel grades like UNS S31803, S32205 (2205), or S32750 (2507), combining austenitic and ferritic microstructures for superior corrosion resistance and mechanical properties.
Material SpecificationsThese flanges meet ASTM A182 standards for forged or rolled alloy-steel pipe flanges, primarily grades F51 (S31803/S32205) and F53 (S32750). Chemical composition features ~22% chromium, 5-6% nickel, 3% molybdenum, nitrogen for pitting resistance, with PREN values exceeding 35-40 for chloride environments.
Key PropertiesDuplex flanges offer tensile strength of 620-860 MPa, yield strength ≥450 MPa, excellent resistance to stress corrosion cracking, and fatigue strength twice that of 316L stainless steel. They withstand temperatures from -50°C to 300°C and suit high-pressure applications up to Class 2500.
Dimensions OverviewDimensions follow ASME B16.5 (1/2"-24") or B16.47 (larger sizes), with types including weld neck, slip-on, blind, socket weld, threaded, and lap joint.
Manu Mehta
Ace Alloys LLP
301,B-Wing, Pratiksha Towers, R S Nimkar Marg, Foras Road
Mumbai - 400008, Maharashtra, India