For Domestic (for India) Email: sales3@jfengg.com / Phone: +91 9833323564 / +91-22-6639 3672
For Export (for other than India) Email: export3@jfengg.com / Phone: +91-9833323751 / +91-22-23634937
JF Engineering Products LLP

Stainless Steel 321/ 321H Flanges

Stainless Steel 321/ 321H Flanges

SS 321H Socketweld Flange, Werkstoff Nr. 1.4541 Blind Flange Stockist, ASTM A182 Stainless Steel 321 SORF Flange Stockist, SS 321 tongue & groove Flanges Manufacturer, SS 321 tongue & groove Flanges, ASME SA182 Stainless Steel 321 RTJ Flange Stockist, ASTM A182 Stainless Steel 321 Lap Joint Flange, SS 321 Longweld Neck Flange Supplier

ASME SA182 Stainless Steel 321 RTJ Flange, Werkstoff Nr. 1.4878 Slip-On Flange, Stainless Steel 321 Flat Flange, SS 321 Longweld Neck Flange, Werkstoff Nr. 1.4541 Reducing Flange, UNS S32109 Threaded Flange Exporter, ASME SA182 Stainless Steel 321 Forge Flange, Werkstoff Nr. 1.4878 Weld Neck Flange, SS 321H Square Flange Supplier

Specifications Of Stainless Steel 321/ 321H Flanges
Standards ANSI/ASME B16.5, EN Flanges,  BS 10,  B16.47 Series A & B,  EN-1092,  ASME Flanges,  BS Flanges,  B16.48,  DIN,  DIN Flanges,  GOST Flanges,  ANSI Flanges,  BS4504.
Size 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
 Pressure Rating Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Production technique Forged, Heat treated and machined
Special design
As per your drawing
AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations
Connect Type/ Flange Face Type Ring Type Joint (RTJ),  Small Tongue, Raised Face (RF),  Lap-Joint Face (LJF),  Small Male-Female (SMF),  Flat Face (FF),  Large Tongue & Groove,  Large Male-Female (LMF).
Largest Bore Diameter Sizes NPS ≤ 10
Minimum & Maximum Size 1/2" To 48"
Origin Indian / Japan / Korean / West Europe / USA
JIS Standard 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
A182 Flange EN 6Bar 10Bar 16Bar 25Bar 40Bar
Test Certificates
EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc.
 Application Gas,  Power,  Chemical,  Metallurgy, Petroleum,  Shipbuilding,  Construction etc.
Equivalent Grades of Stainless Steel 321/ 321H 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
Chemical Composition of Stainless Steel 321/ 321H Flanges
Grade C Mn Si P S Cr Mo Ni Fe
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 Stainless Steel 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 %
8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
Different Type Of Stainless Steel 321/ 321H Flanges

Dimensions Of Stainless Steel 321/ 321H Flanges
Dimensions Of Stainless Steel Flanges
Nom. Pipe
Size
O T R X No./Dia. of Holes Bolt
Circle Dia.
L2 H B2 L B r L3 B3 D
1/2 3.5 0.44 1.38 1.19 4-0.62 2.38 1.88 0.84 0.62 0.62 0.88 0.12 0.62 0.9 0.38
3/4 3.88 0.5 1.69 1.5 4-0.62 2.75 2.06 1.05 0.82 0.62 1.09 0.12 0.62 1.11 0.44
1 4.25 0.56 2 1.94 4-0.62 3.12 2.19 1.32 1.05 0.69 1.36 0.12 0.69 1.38 0.5
1-1/4 4.62 0.62 2.5 2.31 4-0.62 3.5 2.25 1.66 1.38 0.81 1.7 0.19 0.81 1.72 0.56
1-1/2 5 0.68 2.88 2.56 4-0.62 3.88 2.44 1.9 1.61 0.88 1.95 0.25 0.88 1.97 0.62
2 6 0.75 3.62 3.06 4-0.75 4.75 2.5 2.38 2.07 1 2.44 0.31 1 2.46 0.69
2-1/2 7 0.88 4.12 3.56 4-0.75 5.5 2.75 2.88 2.47 1.12 2.94 0.31 1.12 2.97 0.75
3 7.5 0.94 5 4.25 4-0.75 6 2.75 3.5 3.07 1.19 3.57 0.38 1.19 3.6 0.81
3-1/2 8.5 0.94 5.5 4.81 8-0.75 7 2.81 4 3.55 1.25 4.07 0.38 1.25 4.1 0.88
4 9 0.94 6.19 5.31 8-0.75 7.5 3 4.5 4.03 1.31 4.57 0.44 1.31 4.6 0.94
5 10 0.94 7.31 6.44 8-0.88 8.5 3.5 5.56 5.05 1.44 5.66 0.44 1.44 5.69 0.94
6 11 1 8.5 7.56 8-0.88 9.5 3.5 6.63 6.07 1.56 6.72 0.5 1.56 6.75 1.06
8 13.5 1.12 10.62 9.69 8-0.88 11.75 4 8.63 7.98 1.75 8.72 0.5 1.75 8.75 1.25
10 16 1.19 12.75 12 12-1.00 14.25 4 10.75 10.02 1.94 10.88 0.5 1.94 10.92 1.31
12 19 1.25 15 14.38 12-1.00 17 4.5 12.75 12 2.19 12.88 0.5 2.19 12.92 1.56
14 21 1.38 16.25 15.75 12-1.12 18.75 5 14 13.25 2.25 14.14 0.5 3.12 14.18 1.63
16 23.5 1.44 18.5 18 16-1.12 21.25 5 16 15.25 2.5 16.16 0.5 3.44 16.19 1.75
18 25 1.56 21 19.88 16-1.25 22.75 5.5 18 17.25 2.69 18.18 0.5 3.81 18.2 1.94
20 27.5 1.69 23 22 20-1.25 25 5.69 20 19.25 2.88 20.2 0.5 4.06 20.25 2.13
22 29.5 1.81 25.25 24.25 20-1.38 27.25 5.88 22 21.25 3.13 22.22 0.5 4.25 22.25 2.38
24 32 1.88 27.25 26.12 20-1.38 29.5 6 24 23.25 3.25 24.25 0.5 4.38 24.25 2.5

Weight Chart Of Stainless Steel 321/ 321H Flanges
Normal Sizes In inch Dimension Flanges Dimensional Sizes 1/2 inch. to 2 1/2 inch.
Class 125
Class 150
Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
inch. mm inch. millimeter inch. mm inch. mm inch. mm inch. mm inch mm
1/2 A 3 1/2 88.9 3 3/4 95.2 3 3/4 95.2 3 3/4 95.2 4 3/4 121 4 3/4 121 5 1/4 133.4
b 7/16 11.1 9/16 14.3 9/16 14.3 9/16 14.3 7/8 22.2 7/8 22.2 1 3/16 30.2
D2 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9 1 3/8 34.9
D1 2 3/8 60.3 2 5/8 66.7 2 5/8 66.7 2 5/8 66.7 3 1/4 82.6 3 1/4 82.6 3 1/2 88.9
n 4 4 4 4 4 4 4 4 4 4 4 - 4 44
d 5/8 15.9 5/8 15.9 5/8 15.9 5/8 15.9 7/8 22.2 7/8 22.2 7/8 22.2
3/4 A 3 7/8 98.4 4 5/8 117.5 4 5/8 117.5 4 5/8 117.5 5 1/8 130 5 1/8 130 5 1/2 139.7
b 1/2 12.7 5/8 15.9 5/8 15.9 5/8 15.9 1 25.4 1 25.4 1 1/4 31.8
D2 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9 1 11/16 42.9
D1 2 3/4 69.8 3 1/4 82.5 3 1/4 82.5 3 1/4 82.5 3 1/2 88.9 3 1/2 88.9 3 3/4 95.2
n 4 4 4 4 4 4 4 4 4 4 4 - 4 44
d 5/8 15.9 3/4 19 3/4 19 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2
1 A 4 1/4 108 4 7/8 123.8 4 7/8 123.8 4 7/8 123.8 5 7/8 149.2 5 7/8 149.2 6 1/4 159
b 9/16 14.3 11/16 17.5 11/16 17.5 11/16 17.5 1 1/8 28.6 1 1/8 28.6 1 3/8 34.9
D2 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8
D1 3 1/8 79.4 3 1/2 88.9 3 1/2 88.9 3 1/2 88.9 4 102 4 102 4 1/4 108
n 4 4 4 4 4 4 4 4 4 4 4 4 4 4
d 5/8 15.9 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 25.4
1 1/4 A 4 5/8 117.5 5 1/4 133.4 5 1/4 133.4 5 1/4 133.4 6 1/4 159 6 1/4 159 7 1/4 184.2
b 5/8 15.9 3/4 19 13/16 20.6 13/16 20.6 1 1/8 28.6 1 1/8 28.6 1 1/2 38.1
D2 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5 2 1/2 63.5
D1 3 1/2 88.9 3 7/8 98.4 3 7/8 98.4 3 7/8 98.4 4 3/8 111 4 3/8 111 5 1/8 130
n 4 4 4 4 4 4 4 4 4 4 4 4 4 4
d 5/8 15.9 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 1/8 28.6
1 1/2 A 5 127 6 1/8 155.6 6 1/8 155.6 6 1/8 155.6 7 177.8 7 177.8 8 203
b 11/16 17.5 13/16 20.6 7/8 22.2 7/8 22.2 1 1/4 31.8 1 1/4 31.8 1 3/4 44.5
D2 2 7/8 73 98 2 7/8 73 2 7/8 73 2 7/8 73 2 7/8 73 2 7/8 73 2 7/8 73
D1 3 7/8 4 4 1/2 114 4 1/2 114 4 1/2 114 4 7/8 124 4 7/8 124 5 3/4 146
n 4 4 4 4 4 4 4 4 4 4 4 4 4 4
d 5/8 . 15.9 7/8 22.2 7/8 22.2 7/8 22.2 1 1/8 28.6 1 1/8 28.6 1 1/4 31.8
2 A 6 152.4 6 1/2 165.1 6 1/2 165.1 6 1/2 165.1 8 1/2 215.9 8 1/2 215.9 9 1/4 234.9
b 3/4 19 7/8 22.2 1 25.4 1 25.4 1 1/2 38.1 1 1/2 38.1 2 50.8
D2 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1 3 5/8 92.1
D1 4 3/4 121 5 127 5 127 5 127 6 1/2 165.1 6 1/2 165.1 6 3/4 171
n 4 4 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 1/8 28.6
2 1/2 A 7 177.8 7 1/2 190.5 7 1/2 190.5 7 1/2 190.5 9 5/8 244 9 5/8 244 10 1/2 266.7
b 7/8 22.2 1 25.4 1 1/8 28.6 1 1/8 28.6 1 5/8 41.3 1 5/8 41.3 2 1/4 57.2
D2 4 1/8 104.8 4 1/8 104.8 4 1/8 104.8 4 1/8 104.8 4 1/8 105 4 1/8 105 4 1/8 105
D1 5 1/2 139.7 5 7/8 149.2 5 7/8 149.2 5 7/8 149.2 7 1/2 190.5 7 1/2 190.5 7 3/4 197
n 4 4 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 1 1/8 28.6 1 1/8 28.6 1 1/4 31.8

Price List Of Stainless Steel 321/ 321H Flanges
ASTM A182 SS 321/ 321H Slip On Flanges USD $2.05 - $10.06 / Piece (FOB Price) on request
Stainless Steel 321/ 321H Weld Neck Flanges USD $2.05 - $10.06 / Piece (FOB Price) on request
SS 321/ 321H Lap Joint Flanges USD $2.05 - $10.06 / Piece (FOB Price) on request
321/ 321H SS Threaded Flanges USD $2.05 - $10.06 / Piece (FOB Price) on request
UNS S32100/ S32109 Socket Weld Flanges USD $2.05 - $10.06 / Piece (FOB Price) on request
Marking and Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All pipes are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.


  • Wooden Boxes
  • Wooden Pallets
  • Shrink-Wrapped
  • Carton Boxes
  • Wooden Boxes
  • Marking and Packing
    Quality Assurance
    Quality Assurance

    At JF Engineering Products LLP, all fasteners are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.


    Testing

    Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report


    • Positive Material Identification - PMI Testing
    • Chemical Analysis - Spectro Analysis
    • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
    • Micro Test
    • Macro Test
    • Hardness Test
    • Pitting Resistance Test
    • Intergranular Corrosion (IGC) Test
    • Flaring Test
    • Flattening Test
    • Hydrostatic Test
    • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
    • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
    • Radiography Test
    • Dye Penetrant Test (DP Test)
    Testing
    SHIPPING POLICY
    SHIPPING POLICY

    Delivery time and delivery dates are based on the "type and quantity" of steel ordered. Our sales team will provide a delivery schedule when quoting to you. On rare occasions the delivery schedule may change so please check with our sales department when placing any orders.

    Orders will be sent out within 2-3 business days, and may take up to 5-10 business days in transit. If fastener is out of stock, orders may take up to 2-4 weeks to ship. JF Engineering Products LLP will notify buyer if this situation occurs.


    Uses & Application

    JF Engineering Products LLP take immensure pleasure in introducing itself as one of the leading Manufacturer & Exporter of high quality fasteners to meet the customer ultimate requirements in the fields of:


  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services
  • Power Generation Industries
  • Food Processing Industries
  • Oil & Gas Industries
  • Sugar Industries
  • Long Radius Bend

    Our Products