Stainless Steel 321 Flanges Supplier, Stockist

321 Stainless Steel Flanges, 321 SS Pipe Flanges, 321H Stainless Steel Flanges, SS 321 Raised Face Flange, Stainless Steel 321H Flat Face Flange, ASTM A182 F321 Flanges, SS 321 Flanges Supplier in Mumbai, India.

Palgotta Metal Pvt Ltd is a trusted, high-quality 321/321H stainless steel flanges manufacturer. Our flanges conform to international standards and are available in various sizes and shapes, including customized options for specialized applications. We prioritize strength, durability, and performance in all our products, ensuring that our flanges can withstand heavy-duty applications in power plants, refineries, and oil & gas companies.

We pride ourselves on prompt delivery and excellent after-sales services to ensure customer satisfaction. Our 321/321H stainless steel flanges offer dimensional accuracy and safety during operations, with minimal maintenance requirements and long service life. Flanges also provide better leak tightness, reducing potential hazards.

Choose Palgotta Metal Pvt Ltd for reliable and cost-effective solutions for your flange needs. Contact us today to learn more.

Table of Content

SS 321 Flanges Suppliers, 321 SS BLRF Flange, ASME SA182 F321H Socket Weld Flange, ASME B16.5 321 SS Plate Flange, SS 321H Weld Neck Flanges, SS 321H Slip on Flanges, Stainless Steel 321 Flanges Manufacturers, Stainless Steel 321H Flanges Stockist in India.

What are 321/321H stainless steel flanges?

SS 321/321H Flanges are annealed and hardened flange components made from austenitic stainless steel. They possess excellent resistance to oxidation and corrosion, making them suitable for a wide range of industrial applications. The SS 321/321H material is non-magnetic and has good mechanical properties with high strength at elevated temperatures.

What are the features of 321/321H stainless steel flanges?

321/321H stainless steel flanges features include superior toughness, low work hardening rate, good creep resistance, formability, weldability, machinability, and durability under extreme conditions. Due to their high thermal conductivity, these components offer higher heat transfer rates than other materials used in flange manufacturing processes. Additionally, these flanges perform better against cracking when exposed to chloride-containing environments.

Stainless Steel 321 Flanges

What are the advantages of 321/321H stainless steel flanges?

321/321H stainless steel flange's advantages include corrosion resistance, cost-effectiveness, and ease of installation. Due to their excellent corrosion resistance properties, these components are suitable for various industries, such as chemical processing, petrochemical, oil and gas production, power generation, and marine applications. Furthermore, these flanges can be used in high-temperature applications up to 870°C (1600°F).

Steel Flanges

Stainless Steel 321 Flanges Specification

  • Standards: ASTM A182 / ASME SA182
  • Dimensions: ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
  • Size: 1/2" (15 NB) to 48" (1200NB)
  • Class: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
  • Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
  • Flange Face Types: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
  • Specialized manufacturer of: Rtj Flanges, Pn16 Flanges, DIN 2566 pn16, DIN 2566 en 1092 1, DIN 2566 pn10, Lap Joint Flanges, Loose Flange, Orifice Flange, AS 4087 Water Flanges, Weld Neck Flanges, Flanges, Slip-On Flanges, Socketweld Flange, Plate Flanges, Large Diameter Flanges, Sorf Flange, Blind Flanges, Table Flange

Equivalent Material of Stainless Steel 321 Flanges

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

Different Types of 321 Stainless Steel Flanges

SS 321H Slip on Flanges
SS 321H Slip on Flanges
SS 321 Blind Flanges
SS 321 Blind Flanges
SS 321H Weld Neck Flanges
SS 321H Weld Neck Flanges
SS 321 Socket Weld Flanges
SS 321 Socket Weld Flanges
SS 321H RTJ Flanges
SS 321H RTJ Flanges
SS 321 Lap Joint Flange
SS 321 Lap Joint Flange

Specialized in Stainless Steel 321 Flanges

  • 321 Stainless Steel SOFF Flanges
  • Austenitic Stainless Steel 321 Flanges
  • Stainless Steel 321 Reducing Flange
  • SS 321H Flanges Stockist in Mumbai
  • Stainless Steel 321 Flanges Pressure Rating
  • Stainless Steel 321 RTJ Flanges Supplier
  • SS 1.4541 Flanges
  • Stainless Steel 321H Flange
  • SS 321 ASME B16.36 Orifice Flange
  • Stainless Steel 321H SORTJ Flanges
  • 321 Stainless Steel Flanges Manufacturer
  • 321 SS Flangeolet
  • Stainless Steel 321H Spectacle Blind Flanges
  • SS 321 BSP Threaded Flanges
  • SS 321H Flanges at Best Price In India
  • Stainless Steel 321 Slip On Flat Face Flange Stocks
  • SS 321 Tongue and Groove Flanges in India
  • Stainless Steel 321H Nipoflange
  • Stainless Steel 321 Industrial Flanges
  • 321H Stainless Steel Custom Flanges
  • Stainless Steel 321H Flanges Stockholder
  • Stainless Steel 321 NPT Threaded Flanges
  • SS 321H WNRF Flanges
  • 321 Stainless Steel Ring Type Joint Flanges
  • AISI 321 Flanges
  • Stainless Steel 321 Pipe Flange Spacer Ring
  • Stainless Steel 321 Large Diameter Flange
  • ASTM A182 F321 SS Forged Flange
  • Stainless Steel 321 Paddle Blind Flange
  • SS S32100 Slip On Plate Flange
  • Stainless Steel 321H Spacer Ring Flanges
  • Stainless Steel 321H BLFF Flanges
  • SUS 321 Screwed Flanges
  • SS 1.4878 Large Tongue Flange
  • Stainless Steel 321H SORF Flanges
  • Stainless Steel 321 Flanges Supplier in India
  • ASME SA182 F321H Stainless Steel Pipe Flanges
  • 321 Stainless Steel SWFF Flanges
  • Stainless Steel UNS S32109 Flange
  • Stainless Steel 321 WNFF Flanges
  • 321 Stainless Steel Flanges Stockist In India
  • SS 321H Paddle Blank and Spacer
  • 321 Stainless Steel Threaded Flanges
  • 321H SS Weld Neck Raised Face Flanges
  • Stainless Steel 321 Loose Plate Flange
  • SS 321 Flanges Wholesale in Mumbai
  • 321 Stainless Steel SWRF Flanges
  • Stainless Steel 321 Orifice Flanges
  • Stainless Steel 321 Threaded Flanges Exporters
  • 321 Stainless Steel Flat Face Blind Flange

Chemical Properties Of 321 Stainless Steel Flanges

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 5(C+N) – 0.70 max
SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max

SS 321 Flanges Mechanical Properties

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Stainless Steel 321 Flanges Dimensions

NPS
(in.) 		321 Stainless Steel Flange Dimensions
Dia. of
Flange
(in.) 		No.
of
Bolts		 Dia. of
Bolts
(in.) 		Dia. of
Bolt Holes
(in.) 		Bolt
Circle
(in.)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-1/2 4 1/2 0.62 2-3/8
3/4 3-7/8 4 1/2 0.62 2-3/4
1 4-1/4 4 1/2 0.62 3-1/8
1-1/4 4-5/8 4 1/2 0.62 3-1/2
1-1/2 5 4 1/2 0.62 3-7/8
2 6 4 5/8 0.75 4-3/4
2-1/2 7 4 5/8 0.75 5-1/2
3 7-1/2 4 5/8 0.75 6
3-1/2 8-1/2 8 5/8 0.75 7
4 9 8 5/8 0.75 7-1/2
5 10 8 3/4 0.88 8-1/2
6 11 8 3/4 0.88 9-1/2
8 13-1/2 8 3/4 0.88 11-3/4
10 16 12 7/8 1 14-1/4
12 19 12 7/8 1 17
14 21 12 1 1.12 18-3/4
16 23-1/2 16 1 1.12 21-1/4
18 25 16 1-1/8 1.25 22-3/4
20 27-1/2 20 1-1/8 1.25 25
24 32 20 1-1/4 1.38 29-1/2

SS 321H Flanges Weight Chart

Pipe Normal Diameter (inch) Outer diameter Flange Thickness Of Flange Minimum Diameter
of
Hub		 Diameter of Raised Face Length Hub.Y Thread Length Diameter
of Bolt
Circle		 Diameter
of Bolt
Holes		 Number
of Bolts		 Diameter of
Bolts
(inch)		 KG LB
1/2" 15 89.00 11.20 30.20 35.10 15.70 15.70 60.50 15.80 4 1/2" 0.4 0.9
3/4" 20 98.50 12.70 38.10 42.90 15.70 15.70 69.90 15.80 4 1/2" 0.7 1.5
1" 25 108.00 14.20 49.30 50.80 17.50 17.50 79.30 15.80 4 1/2" 0.8 1.8
1-1/4" 32 117.50 15.70 58.70 63.50 20.60 20.60 88.90 15.80 4 1/2" 1.2 2.6
1-1/2" 40 127.00 17.50 65.00 73.20 22.40 22.40 98.60 15.80 4 1/2" 1.5 3.3
2" 50 152.50 19.10 77.70 91.90 25.40 25.40 120.70 19.10 4 5/8" 2.3 5.1
2-1/2" 65 178.00 22.40 90.40 104.60 28.40 28.40 139.70 19.10 4 5/8" 3.7 8.1
3" 80 190.50 23.90 108.00 127.00 30.20 30.20 152.40 19.10 4 5/8" 4.1 9
3-1/2" 90 216.00 23.90 122.20 139.70 31.80 31.80 177.80 19.10 8 5/8" 5.1 11.2
4" 100 228.50 23.90 134.90 157.20 33.30 33.30 190.50 19.10 8 5/8" 5.9 13
5" 125 254.00 23.90 163.60 185.70 36.60 36.60 215.90 22.40 8 3/4" 7 15.4
6" 150 279.50 25.40 192.00 215.90 39.60 39.60 241.30 22.40 8 3/4" 8.4 18.5
8" 200 343.00 28.40 246.10 269.70 44.50 44.50 298.50 22.40 8 3/4" 13 28.6
10" 250 406.50 30.20 304.80 323.90 49.30 49.30 362.00 25.40 12 7/8" 18 39.5
12" 300 482.50 31.80 365.30 381.00 55.60 55.60 431.80 25.40 12 7/8" 29 64
14" 350 533.50 35.10 400.10 412.80 57.20 57.20 476.30 28.50 12 1" 39 86
16" 400 597.00 36.60 457.20 469.90 63.50 63.50 539.80 28.50 16 1" 47 103
18" 450 635.00 39.60 505.00 533.40 68.30 68.30 577.90 31.80 16 1 1/8" 57 126
20" 500 698.50 42.90 558.80 584.20 73.20 73.20 635.00 31.80 20 1 1/8" 76 167
24" 600 813.00 47.80 663.40 692.20 82.60 82.60 749.30 35.10 20 1 1/4" 97 214

UNS S32100 Flange Pressure Rating Chart

ASME Pressure Temperature Ratings For Stainless Steel 321H Flanges
Temperature °F Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

321 SS Flanges Price List

  • astm a182 321h stainless steel flanges
    FOB Price: US$ 1.40 - 3.10 / Piece
  • 321h stainless steel socket wld raised face flanges (swrf)
    FOB Price: US$ 12.00 - 64.00 / Piece
  • 321 stainless steel ansi 150lbs bsp threaded flanges
    FOB Price: US$ 1.00 - 90.00 / Piece
  • aisi 321 flange cost
    FOB Price: US$ 3.3 - 23.00 / Piece
  • top quality 321h stainless steel flanges with factory price
    FOB Price: US$ 1.60 - 1.50 / Piece
  • ss 321 plate flanges price per ton
    FOB Price: US$ 1.00 - 21.00 / Piece
  • cheap price 321 stainless steel Flanges
    FOB Price: US$ 1.25 - 45.00 / Piece
  • 321h stainless steel blrtj flange price list
    FOB Price: US$ 2.00 - 45.00 / Piece
  • 321 stainless steel raised face blind flange
    FOB Price: US$ 7.00 - 100.00 / Piece
  • sus 321 ss weld neck pipe flange price
    FOB Price: US$ 1.20 - 19.00 / Piece
  • asme b16.5 321 stainless steel rf flange
    FOB Price: US$ 4.00 - 105.00 / Piece
  • ansi b16.5 ss 321h threaded / screwed flanges
    FOB Price: US$ 1.06 - 54.00 / Piece

Factory

Large power plant beside a river
A large factory with many pipes and tanks

Industries We Serve

  • Chemical Industry
  • Petrochemical Industry
  • Oil & Gas Industry
  • Marine Industry
  • Power Generation Industry
  • Sugar Industry
  • Marine Industry
  • Pharmaceuticals Industry
  • Cement Industry
  • Dairy Industry
  • Food Processing Industry
  • Paper & Pulp Industry
  • Offshore and Onshore Services
ASTM A182 321 Flanges Manufacturers in India| SS 321H Plate Flanges Stockists | Supplier of Stainless Steel 321H Flanges | SS 321 Flanges Latest Price | 321H Steel Flanges Suppliers | SS 321 Flange Exporters | 321 Stainless Steel Forged Threaded Flange

SS 321H Flanges Value Added Services

  • Same Day Shipping
  • 24-Hour Emergency Service
  • Cut to length
  • Custom Machining
  • Material testing
  • X-ray
  • MTR’s Available
  • CNC Machining
  • Customised Flanges
  • Grooving
  • Threading
  • Beveling
  • Order staging
  • Special Packaging & Shipping For Domestic And Export
  • Hot Shot shipping
Flange manufacturing services

Export Destinations For SS 321 Flanges

Nepal, Ireland, United Kingdom, Kenya, Pakistan, Iraq, Tibet, Angola, Norway, Singapore, Denmark, Switzerland, Serbia, Brazil, Bhutan, columbia, Mexico, Afghanistan, Bahrain, Taiwan, Israel, Gambia, Azerbaijan, Gabon, Saudi Arabia, Kazakhstan, Croatia, Ghana, Colombia, Slovakia, Peru, Russia, Mongolia, Ecuador, Japan, Algeria, Lebanon, Namibia, Lahore, Kuwait, Belgium, India, Chile, Venezuela, Sri Lanka, Philippines, Lithuania, Ukraine, Czech Republic, Austria, Argentina, Zimbabwe, Iran, Bangladesh, Poland, Spain, Algiera, Puerto Rico, Trinidad & Tobago, Netherlands, Libya, Morocco, Indonesia, Oman, Greece, Malaysia, France, New Zealand, Thailand, Bolivia, Jordan, Romania, Costa Rica, Finland, Tunisia, Italy, Australia, Hong Kong, Turkey, Canada, Qatar, Nigeria, Macau, Sweden, China, United Arab Emirates, Belarus, Estonia, Hungary, Yemen, South Africa, United States, South Korea, Germany, Vietnam, Bulgaria, Portugal, Egypt.


Domestic Supply For Stainless Steel 321H Flange

Rajkot, Kanpur, Hyderabad, Bhopal, Nashik, Secunderabad, Mumbai, Pimpri-Chinchwad, Gurgaon, Ludhiana, Thane, Faridabad, Pune, Kolkata, Ernakulam, Surat, Navi Mumbai, Ranchi, New Delhi, Nagpur, Indore, Visakhapatnam, Jaipur, Bengaluru, Thiruvananthapuram, Jamshedpur, Haryana, Chandigarh, Howrah, Noida, Ahmedabad, Chennai.