ASTM A182 F321H Stainless Steel Flanges manufacturers in India
Certificates & Approvals
Our Products
Exporter of Flanges, ASTM A182 F5, F9, F22, F91 Alloy Steel Flanges As Per ANSI B16.5, BS10 TABLE D, TABLE E
Burkhard Steel Industries is a leading manufacturer and exporter of ASTM A182 stainless steel flanges, Stainless Steel pipe fittings and flanges in India with over 3 decades of industry experience. We specialize in manufacturing high-quality products in accordance with ASME B16.9 / ASME B16.11 standards while maintaining world-class quality, competitive pricing, and continuous innovation through advanced manufacturing systems and efficient production processes.
With a modern manufacturing infrastructure in Gujarat, India, Burkhard Steel Industries has made substantial investments in advanced production technology, automation systems, sophisticated machinery, and sustainable manufacturing processes to establish a world-class production environment. We source premium-quality raw materials from trusted and globally recognized suppliers and manufacture products in compliance with ASME, EN, ISO, and DIN standards to ensure superior quality, reliable performance, timely delivery, and complete customer satisfaction.
As a growing exporter of stainless steel pipe fittings from India, Burkhard Steel Industries Pvt. Ltd. has developed a strong international presence across Sri Lanka, Kingdom of Saudi Arabia, Kuwait, Thailand, Indonesia, Trinidad (West Indies), Iran, United Arab Emirates (UAE), Taiwan (R.O.C.), Singapore, Qatar, and Japan. Through consistent quality standards and dependable service, we continue to strengthen our position as a trusted pipe fittings and flanges exporter from Gujarat, India.
Table of Content
What is A182 Alloy Steel Flanges?
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
This specification covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service. After hot working, forgings shall be cooled to a specific temperature prior to heat treatment, which shall be performed in accordance with certain requirements such as heat treatment type, austenitizing/solution temperature, cooling media, and quenching. The materials shall conform to the required chemical composition for carbon, manganese, phosphorus, silicon, nickel, chromium, molybdenum, columbium, titanium. The material shall conform to the requirements as to mechanical properties for the grade ordered such as tensile strength, yield strength, elongation, Brinell hardness. All H grades and grade F 63 shall be tested for average grain size.
A182 F321H Stainless Steel Flanges Specifications
Alloy 321 (UNS S32100) is titanium stabilized austenitic stainless steel plate with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness.
ASTM A182 Grade 321H Stainless Steel Forged Fittings
Grade | SS 321H |
Stainless Steel 316 Flanges Standard : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges ANSI B16.5 ANSI B16.47 ASME B16.5 ASME B16.36 BS4504-3.1 DIN2503 DIN2527 DIN2627 DIN2629 DIN2630-2638 DIN2573 DIN2576 DIN2501 DIN2566 DIN2656 JIS B2220 JIS 5K, 10K, 16K, 20K UNI 2276. UNI 2277. UNI 2278 .UNI 6089 .UNI 6090 AISI B16.36, MSS SP44, API6A, BS 4504, EN1092, UNI 2277/2278, DIN 4504 |
Specification : | ASTM A182 / A240 & ASME SA182 / SA240 |
Dimension : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
Stainless Steel 316 Flanges Class : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
Size : | 1/2″-100″, SCH5S-SCH160S, XS, XXS, STD |
Test Certificate | EN 10204-3.1, EN 10204-3.2 Under Third Party Inspection |
Items | ASTM A182 Grade 321H Forged Flanges: SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing ASTM A182 Grade 321H Plate Flanges: SORF, BLRF, LAP Joint & Spectacle |
Type | ASTM A182 F321H Plate Flange, ASTM A182 F321H Flat Flange, ASTM A182 F321H Slip on Flange, ASTM A182 F321H Welding Neck Flange, ASTM A182 F321H Long Welding Neck Flange, ASTM A182 F321H Blind Flange, ASTM A182 F321H Socket Welding Flange, ASTM A182 F321H Thread Flange, ASTM A182 F321H Screwed Flange, ASTM A182 F321H Lap Joint Flange,etc |
Connection Type | Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large Tongue,Groove, Small Tongue, Groove,etc |
ASTM A182 F316L Stainless Steel Flanges Pressure | ANSI Class 150, 300, 600, 900, 1500, 2500lbs DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100 GOST PN6, PN10, PN16, PN25 EN PN6, PN10, PN16, PN25, PN40, PN64, PN100 JIS 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K BS PN6, PN10, PN16, PN25, PN40, PN64, PN100 |
Specialize | As per drawing |
Package | Standard export package, by wooden box, or as required |
Stainless Steel Flanges Grades | 310S, 310, 309, 309S, 316, 316L, 316Ti, 317, 317L, 321, 321H, 347, 347H, 304, 304L, 302, 301, 201, 202, 405, 410, 420, 430, 904L, Duplex, etc |
Also as per National & International Standard & Specification, Manufacturers of Stainless Steel 321H Flanges
Export to: Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Italy, Iran, India, Egypt, Oman, Dubai, Peru, Mexico, South Africa, Russia, Viet Nam, Nigeria, Chile, etc
Material | Size (mm) | SCH/ CLASS | Type | Specification | Manufacturing Method |
SS/AS/CS/LTCS Flange | 15NB to 600NB ANSI Standard B16.5 | 150#, 300#,900#, 1500#, 2500# | WNRF, SORF, BLRF, SWRF, RING JOINT | A182/A105/ A350LF | FORGED |
SS/AS/CS/LTCS Flange | 650NB to 1500NB ASME/ANSI B16.47 SER.B (API 605) | Class 75/150/300 | WNRF, BLRF | A182/A105/ A350LF | FORGED |
SS/AS/CS/LTCS Flange | 650NB to1500NB ASME/ANSI B16.47 SER.A (MSS SP 44) | Class 150/300/600 | WNRF, BLRF | A182/A105/ A350LF | FORGED |
SS/AS/CS/LTCS Flange | 1000NB to 3000NB AWWA C207 Flanges | Table 1 *Class B (86 PSI) *Class D(150-175PSI) Table 2 *Class B (86 PSI) *Class D(150-175PSI) Table 3 *Class E (275 PSI) | SLIP ON FF, BLIND FF SLIP ON FF WITH HUB, BLIND FF SLIP ON FF WITH HUB, BLIND FF | A182/A105/ A350LF A182/A105/ A350LF A182/A105/ A350LF | FORGED/PLATE FORGED FORGED |
SS/AS/CS/LTCS Flange | 10NB to 1500NB JIS & KS Flanges | Class 5K, 10K, 16K, 20K, 30K | SLIP ON, WELD NECK | A182/A105/ A350LF | FORGED/PLATE |
SS/AS/CS/LTCS Flange | 10NB to 1000NB DIN Flanges | Class 6Bar, 10Bar, 16Bar, 25Bar, 40Bar | SLIP ON, BLIND, WELD NECK | A182/A105/ A350LF | FORGED/PLATE |
SS/AS/CS/LTCS Flange | 650NB to 900NB BS 3293 Flanges | 150lb/sq.in, 300lb/sq.in., 600lb/sq.in | WELD NECK | A182/A105/ A350LF | FORGED |
FORGED | CAST |
Stainless Steel | |
ASTM A105N | ASTM A216 WCB/WCC |
ASTM A350 LF2 | ASTM A352 LCB/LCC |
ALLOY STEEL | |
ASTM A350 LF3 | ASTM A352 LC3 |
ASTM A182 F5A/F5 | ASTM A217 C5 |
ASTM A182 F9 | ASTM A217 C12 |
ASTM A182 F11 | ASTM A217 WC6 |
ASTM A182 F22 | ASTM A217 WC9 |
ASTM A182 F91 | ASTM A217 C12A |
AUSTENITIC STAINLESS STEEL | |
ASTM A182 F304/F304L | ASTM A351 CF8/CF3 |
ASTM A182 F316/F316L | ASTM A351 CF8M/CF3M |
ASTM A182 F347 | ASTM A351 CF8C |
ASTM A182 F321 | |
ASTM A182 F44 (6MO) | ASTM CK3MCuN |
ASTM A182 F20* (ALLOY 20) | ASTM A351 CN7M |
FERRITIC-AUSTENITIC STAINLESS STEEL | |
ASTM A182 F51 – UNS S31803 (DUPLEX S.S.) | ASTM A351 CD3MN |
ASTM A182 F53 – UNS S32750 (SUPER DUPLEX S.S.) | A890 GR.5A CE3MN* |
ASTM A182 F55 – UNS S32760 (SUPER DUPLEX S.S.) | A890 GR.6A CD3MWCuN |
NICKEL ALLOY | |
INCONEL 825 – UNS N08825 ASTM B564-N08825 | A484 CU 5MCuC* |
INCONEL 600 – UNS N06600 ASTM B564-N06600 | A494 CY40* |
INCONEL 625 – UNS N06625 ASTM B564-N06625 | A494 CW6MC* |
MONEL 400 – UNS N04400 ASTM B564-N04400 | A494 M35-1 |
TITANIUM | |
ASTM B381 GR.F2 | ASTM B367 GR.C2 |
ASTM B381 GR.F3 | ASTM B367 GR.C3 |
Chemical Analysis for 321H grade stainless steel flanges
Element | 321 | 321H |
Chromium | 17.00 min.-19.00 max. | 17.00 min.-19.00 max. |
Nickel | 9.00 min.-12.00 max. | 9.00 min.-12.00 max. |
Carbon | 0.08 | 0.04 min.-0.14 max. |
Manganese | 2.00 | 2.00 |
Phosphorus | 0.045 | 0.045 |
Sulfur | 0.03 | 0.03 |
Silicon | 0.75 | 0.75 |
Titanium | 5 x (C + N) min.-0.70 max. | 4 x (C + N) min.-0.70 max. |
Nitrogen | 0.10 | 0.10 |
Iron | Balance | Balance |
ASTM A182 F321H Plate Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD FLANGES manufacturers in India
Stainless Steel Plate Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H, Stainless Steel Flanges Exporter, Supplier, SS304, SS304L, SS316, SS316L
ASTM A182 F321H Flat Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD FLAT FLANGES manufacturers in India
Stainless Steel Flat Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Slip on Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Slip On Flanges manufacturers in India
Stainless Steel Slip On Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Weld Neck Flange
Are you looking for ASTM A182 F321H Flanges manufacturers in India? Check price before you Buy.
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Weld Neck Flanges manufacturers in India
Stainless Steel Weld Neck Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size 1/2″ to 36″
Dimensions 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.
ASTM A182 F321H Long Weld Neck Flanges
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Long Weld Neck Flanges manufacturers in India
Stainless Steel Long Weld Neck Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Blind Flange
ASTM A182 F321H, F9, F22, F91 Stainless Steel BLIND FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Blind Flanges manufacturers in India
Stainless Steel Blind Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
Higher pressures available
ASTM A182 F321H Socket Weld Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Socket Weld Flanges manufacturers in India
Stainless Steel Socket Weld Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Threaded Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Threaded Flanges manufacturers in India
Stainless Steel Threaded Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Screwed Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Screwed Flanges manufacturers in India
Stainless Steel Screwed Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Lap Joint Flange
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Lap Joint Flanges manufacturers in India
Stainless Steel Lap Joint Flange manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.
ASTM A182 F321H Forged Flanges
ASTM A182 F321H FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Forged Flanges manufacturers in India
Stainless Steel Forged Flanges manufacturers in India
Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size: 1/2″ to 36″
Dimensions: 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.