ASTM A105 Flange Manufacturers in India
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ASTM A105 Forged Flange and Blind Flange manufacturers in India
Burkhard Steel Industries is a leading manufacturer and exporter ofstainless 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 ASTM A105 Carbon Steel Flanges?
ASTM A105 is the standard specification for carbon steel forgings for piping applications including flanges, fittings and valve parts, etc. According to ASME B16.5 (Pipe Flange), this material is categorized into Group 1.1 which has the same pressure-temperature ratings as ASTM A216 Grade WCB, A515 Grade 70, A350 Grade LF2, A516 Grade 70, A350 Grade LF6 Class 1, A537 Class 1 and A350 Grade LF3. ASTM A105 flanges refer to forged carbon steel flanges for ambient and high temperature service in pressure systems. They can be manufactured to dimensional standards of ASME B16.5, ASME B16.47, MSS SP 44, API 605, BS 4504, EN1092-1 and L-005, etc. FitTech keeps a large amount of flanges available in stock covering flange types of welding neck, slip on, socket welding, threaded, blind, slip on plate, long weld neck, orifice and lap joint, etc.
A182 F317 Stainless Steel Flanges Specifications
ANSI B16.5, ASME B16.47 FLANGE
- Size range: 1/2″ to 80″ DN15 to DN2000
- Design: welding neck, slip on, blind, socket welding, threaded, lap-joint
- Pressure: 150#, 300#, 600#,900#,1500#, 2500#
- Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS
- Material: carbon steel A105, stainless steel 304/304L, 316/316L
- Coating: black paint, yellow transparent paint, cold and hot dip galvanize
- Package: seaworthy plywooden case, wooden pallet
EN1092-1 FLANGE
- Size range: DN15 to DN2000
- Design: type01 plate flange, type02 loose flange, type05 blind flange, type11 welding necking
- type12 slip on flange, type 13 threaded flange
- Pressure: PN6, PN10, PN16, PN25, PN40, PN64, PN100
- Material: carbon steel C22.8, S235, S235JR, P235GH, stainless steel: 304/304L, 316/316L
- Coating: black paint, yellow transparent paint, cold and hot dip galvanize
- Package: sea worthy plywooden case, wooden pallet
DIN FLANGE
- Size range: DN15 to DN2000
- Design: slip on flange DIN2573,2576,2502,2503, 2543,2545
- welding neck falnge DIN2631, 2632,2633,2634,2635
- blind flange DIN 2527 PN6, PN10, PN16, PN25, PN40
- threaded falnge DIN2565,2566,2567,2567
- loose flange DIN 2641,2642,2656,2673
- Material: carbon steel ST37.2, stainless steel 1.4301, 1.4404
- Coating: rust-proof oil, transparent paint, cold and hot galvanize
- Package: sea worthy plywooden case, wooden pallet
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 |
Pressure-Temperature Ratings for ASTM A105 Flanges
Temp. °C | Working Pressure by Classes, bar |
150 | 300 | 400 | 600 | 900 | 1500 | 2500 | |
-29 ~ 38 | 19.6 | 51.1 | 68.1 | 102.1 | 153.2 | 255.3 | 425.5 |
50 | 19.2 | 50.1 | 66.8 | 100.2 | 150.4 | 250.6 | 417.7 |
100 | 17.7 | 46.6 | 62.1 | 93.2 | 139.8 | 233.0 | 388.3 |
150 | 15.8 | 45.1 | 60.1 | 90.2 | 135.2 | 225.4 | 375.6 |
200 | 13.8 | 43.8 | 58.4 | 87.6 | 131.4 | 219.0 | 365.0 |
250 | 12.1 | 41.9 | 55.9 | 83.9 | 125.8 | 209.7 | 349.5 |
300 | 10.2 | 39.8 | 53.1 | 79.6 | 119.5 | 199.1 | 331.8 |
325 | 9.3 | 38.7 | 51.6 | 77.4 | 116.1 | 193.6 | 322.6 |
350 | 8.4 | 37.6 | 50.1 | 75.1 | 112.7 | 187.8 | 313.0 |
375 | 7.4 | 36.4 | 48.5 | 72.7 | 109.1 | 181.8 | 303.1 |
400 | 6.5 | 34.7 | 46.3 | 69.4 | 104.2 | 173.6 | 289.3 |
425 | 5.5 | 28.8 | 38.4 | 57.5 | 86.3 | 143.8 | 239.7 |
450 | 4.6 | 23.0 | 30.7 | 46.0 | 69.0 | 115.0 | 191.7 |
475 | 3.7 | 17.4 | 23.2 | 34.9 | 52.3 | 87.2 | 145.3 |
500 | 2.8 | 11.8 | 15.7 | 23.5 | 35.3 | 58.8 | 97.9 |
538 | 1.4 | 5.9 | 7.9 | 11.8 | 17.7 | 29.5 | 49.2 |
*ASTM A105 flanges are not recommended for prolonged use above 425°C since upon prolonged exposure to temperature above 425°C, the carbide phase of steel may be converted to graphite causing brittleness problems.
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 |
A105 Carbon Steel Plate Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD 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.
A105 Carbon Steel Flat Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD FLAT 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.
A105 Carbon Steel Slip on Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Slip On 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.
A105 Carbon Steel Weld Neck Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Weld Neck 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.
A105 Carbon Steel Long Weld Neck Flanges
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Long Weld Neck 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.
A105 Carbon Steel Blind Flange
ASTM A105, F9, F22, F91 Carbon Steel BLIND FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Blind 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.
Higher pressures available
A105 Carbon Steel Socket Weld Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Socket Weld 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.
A105 Carbon Steel Threaded Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Threaded 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.
A105 Carbon Steel Screwed Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Screwed 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.
A105 Carbon Steel Lap Joint Flange
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD Lap Joint 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.
A105 Carbon Steel Forged Flanges
ASTM A105 FLANGES AS PER ANSI B16.5, BS10 TABLE D, TABLE E, DIN STANDARD 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.