With years of industry expertise, Numax Steels is committed to delivering excellence in the field of stainless steel products in Kolkata. When it comes to Stainless Steel Flanges, we stand out as one of the reliable and top-tier Stainless Steel Flanges Manufacturers in Kolkata. Our meticulously crafted Stainless Steel Flanges meet the stringent standards set by professionals in Kolkata, ensuring durability and performance.
Our commitment to quality is reflected in our cutting-edge solutions in Kolkata, designed to enhance safety and functionality. Our advanced production facility, equipped with state-of-the-art technology, enables us to supply high-performance Stainless Steel Threaded Flanges tailored to the unique needs of businesses and industries in Kolkata. Precision and reliability are paramount in stainless steel threaded flanges, and we excel as one of the trusted Stainless Steel Threaded Flange Suppliers in Kolkata.
At our company, customer satisfaction is our priority in Kolkata. Our dedicated team in Kolkata collaborates closely with clients to understand their specific requirements. As one of the finest Stainless Steel Threaded Flange Exporters in Kolkata, we not only provide top-notch products but also go the extra mile with comprehensive post-sale support. Trust us for high-quality stainless steel flanges in Kolkata that exceed expectations.
| Specifications | ASTM A182 / ASME SA182, ASTM A240 / ASME SA240 |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, Etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 Etc. |
| Grades | 304, 304L, 304H, 310S, 310H, 316, 316TI, 316L, 316H, 316LN, 317, 317L, 321, 347, 904L |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, Etc. |
| Specifications | ASTM A182 / ASME SA182, ASTM A240 / ASME SA240 |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, Etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 Etc. |
| Grade | SS 304, UNS S30400 |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, Etc. |
Chemical Composition of Stainless Steel 304 Flanges
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
ASME SA182 SS 304 Flanges Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for 304 Stainless Steel Flanges
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
Available Grades of Stainless Steel Flanges
| Grades | 304, 304H, 310, 310H, 316Ti, 317L, 410, 304L, 310S, 316/316L, 317, 347, 904L |
SS 304 Flanges - Application Industries
| Specifications | ASTM A182 / ASME SA182, ASTM A240 / ASME SA240 |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, Etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 Etc. |
| Grade | SS 310, UNS S31000 |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, Etc. |
Chemical Composition of Stainless Steel 310 Flanges
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 310 | 0.015 max | 2 max | 0.015 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
ASME SA182 SS 310 Flanges Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Equivalent Grades for 310 Stainless Steel Flanges
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | – | X15CrNi25-20 |
Available Grades of Stainless Steel Flanges
| Grades | 304, 304H, 310, 310H, 316Ti, 317L, 410, 304L, 310S, 316/316L, 317, 347, 904L |
SS 310 Flanges - Application Industries
| Specifications | ASTM A182 / ASME SA182, ASTM A240 / ASME SA240 |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, Etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 Etc. |
| Grade | SS 316, UNS S31600 |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, Etc. |
Chemical Composition of Stainless Steel 316 Flanges
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 316 | 0.08 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 11.00 – 14.00 | 67.845 min |
ASME SA182 SS 316 Flanges Mechanical Properties
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 316 | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for 316 Stainless Steel Flanges
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
Available Grades of Stainless Steel Flanges
| Grades | 304, 304H, 310, 310H, 316Ti, 317L, 410, 304L, 310S, 316/316L, 317, 347, 904L |
SS 316 Flanges - Application Industries
| Specifications | ASTM B649 / ASME SB649 |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, Etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 Etc. |
| Grade | SS 904L, UNS N08904 |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, Etc. |
Chemical Composition of Stainless Steel 904L Flanges
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
ASME SB649 SS 904L Flanges Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Equivalent Grades for 904L Stainless Steel Flanges
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5 | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Available Grades of Stainless Steel Flanges
| Grades | 304, 304H, 310, 310H, 316Ti, 317L, 410, 304L, 310S, 316/316L, 317, 347, 904L |
SS 904L Flanges - Application Industries
| Dimensions | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges Etc. |
| Standard | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Size | 1/8″ NB TO 48″ NB |
| Types of Flanges | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN | DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 |
| BS | BS4504 , BS4504, BS1560, BS10 |
Stainless Steel Slip on Flanges Material & Grades
| Stainless Steel Slip On Flanges | ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L |
Types of Stainless Steel Slip on Flanges
| Stainless Steel Class 150 Slip On Flanges | SS Class 300 Slip On Flanges |
| SS Class 400 Slip On Flanges | Stainless Steel Class 600 Slip On Flanges |
| Stainless Steel Class 900 Slip On Flanges | SS Class 1500 Slip On Flanges |
| SS Plate Slip On Flanges | Stainless Steel Ring Type Joint Slip On Flanges |
| Stainless Steel Drawing Slip On Flanges | SS Square Slip On Flanges |
| SS Slip-On Raised Face Flanges | Stainless Steel SORF Flanges |
| Stainless Steel Forged Slip On Flanges | SS Slip On Flat Face Flanges |
SS SORF Flanges - Application Industries
| Dimensions | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges Etc. |
| Standard | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Size | 1/8″ NB TO 48″NB. |
| Types of Flanges | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN | DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 |
| BS | BS4504 , BS4504, BS1560, BS10 |
Stainless Steel Weld Neck Flanges Material & Grades
| Stainless Steel Weld Neck Flanges | ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L |
Types of Stainless Steel Weld Neck Flanges
| Stainless Steel Class 150 Weld Neck Flanges | SS Class 300 Weld Neck Flanges |
| SS Class 400 Weld Neck Flanges | Stainless Steel Class 600 Weld Neck Flanges |
| Stainless Steel Class 900 Weld Neck Flanges | SS Class 1500 Weld Neck Flanges |
| SS Plate Weld Neck Flanges | Stainless Steel Ring Type Joint Weld Neck Flanges |
| Stainless Steel Drawing Weld Neck Flanges | SS Square Weld Neck Flanges |
| SS Weld Neck Raised Face Flanges | Stainless Steel WNRF Flanges |
| Stainless Steel Forged Weld Neck Flanges | SS Weld Neck Flat Face Flanges |
| SS Class 2500 Weld Neck Flanges | Stainless Steel Weld Neck Flanges |
SS WNRF Flanges - Application Industries
| Material & Grades | ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L |
Types of Stainless Steel Lap Joint Flanges
| Stainless Steel Class 150 Lap Joint Flanges | SS Class 300 Lap Joint Flanges |
| SS Class 400 Lap Joint Flanges | Stainless Steel Class 600 Lap Joint Flanges |
| Stainless Steel Class 900 Lap Joint Flanges | SS Class 1500 Lap Joint Flanges |
| SS Plate Lap Joint Flanges | Stainless Steel Ring Type Joint Lap Joint Flanges |
| Stainless Steel Drawing Lap Joint Flanges | SS Square Lap Joint Flanges |
| SS Lap Joint Raised Face Flanges | Stainless Steel LJRF Flanges |
| Stainless Steel Forged Lap Joint Flanges | SS Lap Joint Flat Face Flanges |
| SS Class 2500 Lap Joint Flanges | Stainless Steel Lap Joint Flanges |
SS LJRF Flanges - Application Industries
| Size | ½" (15 NB) to 48" (1200NB) |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Standards | ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 |
| DIN | DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 |
| B.S | BS4504 , BS4504, BS1560, BS10 |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
Stainless Steel Threaded Flanges Material & Grades
| Stainless Steel Threaded Flanges | ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L |
Types of Stainless Steel Threaded Flanges
| Stainless Steel Class 150 Threaded Flanges | SS Class 300 Threaded Flanges |
| SS Class 400 Threaded Flanges | Stainless Steel Class 600 Threaded Flanges |
| Stainless Steel Class 900 Threaded Flanges | SS Class 1500 Threaded Flanges |
| SS Plate Threaded Flanges | Stainless Steel Ring Type Joint Threaded Flanges |
| Stainless Steel Drawing Threaded Flanges | SS Square Threaded Flanges |
| SS Threaded Flat Face Flanges | Stainless Steel Threaded Flanges |
| Stainless Steel Forged Threaded Flanges | SS Class 2500 Threaded Flange |
SS Threaded Face Flanges - Application Industries
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