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321 / 321H Stainless Steel Flanges

We, Mahaveer Steel, are amassing and giving a wide extent of Flanges in different grades. SS 321/321H Flanges are one of such Flanges open in our stock. Each kind of Flange has its unprecedented qualities and traits. By considering all necessities of mechanical and to add to their turn of events, we are making a wide scope of Flanges with various subtleties.

Compound 321 is Austenitic Titanium with Chromium-Nickel Stainless Steel. This grade astoundingly makes to give Intergranular disintegration obstacle. Composite 321 is sensible for applications where welding under high temperatures is required. This Alloy 321 has 0.08% of Carbon, 0.75% of Silicon, 0.10% of Nitrogen, and 2% Manganese. Blend 321H is a higher Carbon type of 321 composites which offers a collection of benefits. Mix 321H gives incredible low-temperature solidness, awesome assurance from oxidation, especially bendable, and outlines quickly. This heap of features and attributes are important to create Flanges. We, Mahaveer Steel, are conveying the best SS 321/321H Flanges in an arrangement of length, standard, estimations, divider thickness with extraordinary surface wrapping up.

Mahaveer Steel carries a wide range of stainless steel 321 / 321h flanges in a variety of lengths, ODs, IDs, size and wall thicknesses to meet your project’s needs—including flanges in dimension as per ASTM , ASME B16.5, B16.47, B16.48 and weight-kg. per mtr. weight & thickness of 321 / 321h stainless steel flanges .

Our SS 321/321H Flanges has properties like utilization deterrent limit, robustness, disintegrate free, security from oxidation, strength, and high weldability property. These helpful Flanges are totally sensible in various undertakings like the petrochemical business, pound, and paper industry, engineered industry, drug industry, aerodynamic exchange, food dealing with industry, oil and gas industry, and power plant industry.

Mahaveer Steel uses the latest advancement and present day devices to make quality SS 321/321H Flanges. The arranging and progression of SS 321/321H Flanges is done by open and worldwide rules. Our gathering of master experts is managing the production of Flanges to ensures flawlessness in surface fruitions and predictable dimensional exactness. By using refined advancement and present day instruments, we pass on expected that quality Flanges should our clients. With the use of advancement, we produce SS 321/321H Flanges in mass whole without compromising in quality.

Stainless Steel 321 / 321H Flanges Specifications


Specification : ASTM A182 / ASME SA182
Dimension Standard : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2" (15 NB) to 48" (1200NB)
Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
DIN Flanges : DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.
JIS Flanges : JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS Flanges : BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.

ASME SA182 Stainless Steel 321 / 321H Flanges Equivalent Grades

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

Stainless Steel 321 / 321H Flanges Sizes in Stock:

All Flanges is manufactured and tested / inspected to the relevant standards including ASTM, ASME and API etc.

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 95 67 4 M12 14
AS 2129 Flange Table C Flanges 95 67 4 13 14
Table D Flanges 95 67 4 13 14
Table E Flanges 95 67 4 13 14
Table F Flanges 95 67 4 13 14
Table H Flanges 114 83 4 16 17
Table J Flanges 114 83 4 16 17
ANSI B16.5 Flanges ANSI 150 Flanges 89 60 4 13 16
ANSI 300 Flanges 95 67 4 13 16
ANSI 600 Flanges 95 67 4 13 16
ANSI 900 Flanges 121 83 4 19 22
ANSI 1500 Flanges 121 83 4 19 22
ISO 7005 (DIN) Flange PN6 Flanges 80 55 4 M10 11
PN10 Flanges 95 65 4 M12 14
PN16 Flanges 95 65 4 M12 14
PN20 Flanges 90 60.5 4 M14 16
PN25 Flanges 95 65 4 M12 14
PN40 Flanges 95 65 4 M12 14

Chemical Composition of Stainless Steel 321 / 321H 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

Mechanical Properties of SS 321 / 321H Flanges

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 / 321H Flanges Application Industries

  • Chemical Industry
  • Petrochemical industry
  • Marine & Power Transmission industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing

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