ASTM A182/ASME SA 182 - Stainless Steel 309/309S Flanges
What is Stainless Steel 309/309S Flanges
Stainless steel 309/309S flanges are extremely ductile and strong. The chemical composition of these flanges is extremely robust and tough. The alloy 309 has less carbon content which improves the stability and weldability of the grade. Stainless steel 309/309S flanges are commonly used as boilers and heat exchangers because of their excellent chemical and mechanical properties. The only difference between grade 309 and 309S is its carbon content.
The tensile strength and yield strength of these flanges is extremely high. The minimum tensile strength of these flanges is 620 MPa (89000 psi) whereas the yield strength of these flanges is 310 MPa ( 45000 Psi). These flanges are commonly applicable in industries like Aerospace, Petroleum refineries, Chemical Processing, Oil & Gas, Pharmaceutical, Thermal Processing, etc. Grade 309/309S is capable of bearing high heat, bad weather conditions and chloride involved environment.

UNS S30900 Groove Flange, UNS S30900 Forge Flange, ASTM A182 SS 309 Weldneck Flange, 309S SS SORF Flange, DIN 1.4828 Lap Joint Flange, SS 309 Slip On Flange, Stainless Steel 309 Blind Flange.
Sumit impex is one of the most astonishing manufacturers and suppliers of these flanges. We at Sumit Impex make sure that our every product is made of high quality raw material and supreme quality elements. We also make sure that our every product is tested and certified
Stainless steel 309/309s flanges are made of austenitic metal which also includes high amounts of chromium and nickel. These flanges are commonly used for high temperature applications. The inclusion of these elements makes the grade more ductile and durable. The high chromium and nickel strength provides excellent robustness and scalability. Stainless steel 309/309S flanges provide excellent resistance from corrosion, crevice corrosion and stress cracking. These flanges provide excellent heat and oxidation resistance.
Specification:- Stainless Steel 309/309S Flanges
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. |
Equivalent Grade:- Stainless Steel 309/309S Flanges
STANDARD | WERKSTOFF NR. | UNS |
SS 309 | 1.4828 | S30900 |
Chemical Composition:- Stainless Steel 309/309S Flanges
Grade | C | Ni | Si | S | Mn | P | Cr | Mo |
SS 309 | 0.20 max | 12.0 – 15.0 | 0.75 max | 0.03 max | 2.00 max | 0.045 max | 22.0 – 24.0 | – |
Mechanical Properties:- Stainless Steel 309/309S Flanges
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
SS 309 | 8.0 g/cm3 | 1455°C (2650°F) | Psi – 89900 , MPa – 620 | Psi – 45000 , MPa – 310 | 45 % |
Dimensions:- Stainless Steel 309/309S Flanges
- Class 150 Flanges
- Class 300 Flanges
- Class 400 Flanges
- Class 600 Flanges
- Class 900 Flanges
- Class 1500 Flanges
- Class 2500 Flanges
Class 150 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 |
Class 300 Flanges

Nom. Pipe Size | O | T | R | X | No. & Dia. of Holes | Bolt Circle Dia. | L2 | H | B2 | L | B | r | L3 | B3 | D | C | THr |
1/2 | 3.75 | 0.56 | 1.38 | 1.5. | 4-0.62 | 2.62 | 2.06 | 0.84 | 0.62 | 0.88 | 0.88 | 0.12 | 0.88 | 0.9 | 0.38 | 0.93 | 0.62 |
3/4 | 4.62 | 0.62 | 1.69 | 1.88 | 4-0.75 | 3.25 | 2.25 | 1.05 | 0.82 | 1 | 1.09 | 0.12 | 1 | 1.11 | 0.44 | 1.14 | 0.62 |
1 | 4.88 | 0.69 | 2 | 2.12 | 4-0.75 | 3.5 | 2.44 | 1.32 | 1.05 | 1.06 | 1.36 | 0.12 | 1.06 | 1.38 | 0.5 | 1.41 | 0.69 |
1-1/4 | 5.25 | 0.75 | 2.5 | 2.5 | 4-0.75 | 3.88 | 2.56 | 1.66 | 1.38 | 1.06 | 1.7 | 0.19 | 1.06 | 1.72 | 0.56 | 1.75 | 0.81 |
1-1/2 | 6.12 | 0.81 | 2.88 | 2.75 | 4-0.88 | 4.5 | 2.69 | 1.9 | 1.61 | 1.19 | 1.95 | 0.25 | 1.19 | 1.97 | 0.62 | 1.99 | 0.88 |
2 | 6.5 | 0.88 | 3.62 | 3.31 | 8-0.75 | 5 | 2.75 | 2.38 | 2.07 | 1.31 | 2.44 | 0.31 | 1.31 | 2.46 | 0.69 | 2.5 | 1.12 |
2-1/2 | 7.5 | 1 | 4.12 | 3.94 | 8-0.88 | 5.88 | 3 | 2.88 | 2.47 | 1.5 | 2.94 | 0.31 | 1.5 | 2.97 | 0.75 | 3 | 1.25 |
3 | 8.25 | 1.12 | 5 | 4.62 | 8-0.88 | 6.62 | 3.12 | 3.5 | 3.07 | 1.69 | 3.57 | 0.38 | 1.69 | 3.6 | 0.81 | 3.63 | 1.25 |
3-1/2 | 9 | 1.19 | 5.5 | 5.25 | 8-0.88 | 7.25 | 3.19 | 4 | 3.55 | 1.75 | 4.07 | 0.38 | 1.75 | 4.1 | - | 4.13 | 1.44 |
4 | 10 | 1.25 | 6.19 | 5.75 | 8-0.88 | 7.88 | 3.38 | 4.5 | 4.03 | 1.88 | 4.57 | 0.44 | 1.88 | 4.6 | - | 4.63 | 1.44 |
5 | 11 | 1.38 | 7.31 | 7 | 8-0.88 | 9.25 | 3.88 | 5.56 | 5.05 | 2 | 5.66 | 0.44 | 2 | 5.69 | - | 5.69 | 1.69 |
6 | 12.5 | 1.44 | 8.5 | 8.12 | 12-0.88 | 10.62 | 3.88 | 6.63 | 6.07 | 2.06 | 6.72 | 0.5 | 2.06 | 6.75 | - | 6.75 | 1.81 |
8 | 15 | 1.62 | 10.62 | 10.25 | 12-1.00 | 13 | 4.38 | 8.63 | 7.98 | 2.44 | 8.72 | 0.5 | 2.44 | 8.75 | - | 8.75 | 2 |
10 | 17.5 | 1.88 | 12.75 | 12.62 | 16-1.12 | 15.25 | 4.62 | 10.75 | 10.02 | 2.62 | 10.88 | 0.5 | 3.75 | 10.92 | - | 10.88 | 2.19 |
12 | 20.5 | 2 | 15 | 14.75 | 16-1.25 | 17.75 | 5.12 | 12.75 | 12 | 2.88 | 12.88 | 0.5 | 4 | 12.92 | - | 12.94 | 2.38 |
14 | 23 | 2.12 | 16.25 | 16.75 | 20-1.25 | 20.25 | 5.62 | 14 | 13.25 | 3 | 14.14 | 0.5 | 4.38 | 14.18 | - | 14.19 | 2.5 |
16 | 25.5 | 2.25 | 18.5 | 19 | 20-1.38 | 22.5 | 5.75 | 16 | 15.25 | 3.25 | 16.16 | 0.5 | 4.75 | 16.19 | - | 16.19 | 2.69 |
18 | 28 | 2.38 | 21 | 21 | 24-1.38 | 24.75 | 6.25 | 18 | 17.25 | 3.5 | 18.18 | 0.5 | 5.12 | 18.2 | - | 18.19 | 2.75 |
20 | 30.5 | 2.5 | 23 | 23.12 | 24-1.38 | 27 | 6.38 | 20 | 19.25 | 3.75 | 20.2 | 0.5 | 5.5 | 20.25 | - | 20.19 | 2.88 |
22 | 33 | 2.63 | 25.25 | 25.25 | 24-1.63 | 29.25 | 6.5 | 22 | 21.25 | 4 | 22.22 | 0.5 | 5.75 | 22.25 | - | 22.19 | 3.13 |
24 | 36 | 2.75 | 27.25 | 27.62 | 24-1.62 | 32 | 6.62 | 24 | 23.25 | 4.19 | 24.25 | 0.5 | 6 | 24.25 | - | 24.19 | 3.25 |
Class 400 Flanges

Nom. Pipe Size | O | T | R | X | No.& Dia. of Holes | Bolt Circle Dia. | L2 | H | B2 | L | B | r | L3 | B3 | D | C | THr |
1/2 | 3.75 | 0.56 | 1.38 | 1.5 | 4-0.62 | 2.62 | 2.06 | 0.84 | To be specified by purchaser. | 0.88 | 0.88 | 0.12 | 0.88 | 0.9 | 0.38 | 0.93 | 0.62 |
3/4 | 4.62 | 0.62 | 1.69 | 1.88 | 4-0.75 | 3.25 | 2.25 | 1.05 | 1 | 1.09 | 0.12 | 1 | 1.11 | 0.44 | 1.14 | 0.62 | |
1 | 4.88 | 0.69 | 2 | 2.12 | 4-.075 | 3.5 | 2.44 | 1.32 | 1.06 | 1.36 | 0.12 | 1.06 | 1.38 | 0.5 | 1.41 | 0.69 | |
1-1/4 | 5.25 | 0.81 | 2.5 | 2.5 | 4-0.75 | 3.88 | 2.62 | 1.66 | 1.12 | 1.7 | 0.19 | 1.12 | 1.72 | 0.56 | 1.75 | 0.81 | |
1-1/2 | 6.12 | 0.88 | 2.88 | 2.75 | 4-0.88 | 4.5 | 2.75 | 1.9 | 1.25 | 1.95 | 0.25 | 1.25 | 1.97 | 0.62 | 1.99 | 0.88 | |
2 | 6.5 | 1 | 3.62 | 3.31 | 8-0.75 | 5 | 2.88 | 2.38 | 1.44 | 2.44 | 0.31 | 1.44 | 2.46 | 0.69 | 2.5 | 1.12 | |
2-1/2 | 7.5 | 1.12 | 4.12 | 3.94 | 8-0.88 | 5.88 | 3.12 | 2.88 | 1.62 | 2.94 | 0.31 | 1.62 | 2.97 | 0.75 | 3 | 1.25 | |
3 | 8.25 | 1.25 | 5 | 4.62 | 8-0.88 | 6.62 | 3.25 | 3.5 | 1.81 | 3.57 | 0.38 | 1.81 | 3.6 | 0.81 | 3.63 | 1.38 | |
3-1/2 | 9 | 1.38 | 5.5 | 5.25 | 8-1.00 | 7.25 | 3.38 | 4 | 1.94 | 4.07 | 0.38 | 1.94 | 4.1 | - | 4.13 | 1.56 | |
4 | 10 | 1.38 | 6.19 | 5.75 | 8-1.00 | 7.88 | 3.5 | 4.5 | 2 | 4.57 | 0.44 | 2 | 4.6 | - | 4.63 | 1.44 | |
5 | 11 | 1.5 | 7.31 | 7 | 8-1.00 | 9.25 | 4 | 5.56 | 2.12 | 5.66 | 0.44 | 2.12 | 5.69 | - | 5.69 | 1.69 | |
6 | 12.5 | 1.62 | 8.5 | 8.12 | 12-1.00 | 10.62 | 4.06 | 6.63 | 2.25 | 6.72 | 0.5 | 2.25 | 6.75 | - | 6.75 | 1.81 | |
8 | 15 | 1.88 | 10.62 | 10.25 | 12-1.12 | 13 | 4.62 | 8.63 | 2.69 | 8.72 | 0.5 | 2.69 | 8.75 | - | 8.75 | 2 | |
10 | 17.5 | 2.12 | 12.75 | 12.62 | 16-1.25 | 15.25 | 4.88 | 10.75 | 2.88 | 10.88 | 0.5 | 4 | 10.92 | - | 10.88 | 2.19 | |
12 | 20.5 | 2.25 | 15 | 14.75 | 16-1.38 | 17.75 | 5.38 | 12.75 | 3.12 | 12.88 | 0.5 | 4.25 | 12.92 | - | 12.94 | 2.38 | |
14 | 23 | 2.38 | 16.25 | 16.75 | 20-1.38 | 20.25 | 5.88 | 14 | 3.31 | 14.14 | 0.5 | 4.62 | 14.18 | - | 14.19 | 2.5 | |
16 | 25.5 | 2.5 | 18.5 | 19 | 20-1.50 | 22.5 | 6 | 16 | 3.69 | 16.16 | 0.5 | 5 | 16.19 | - | 16.19 | 2.69 | |
18 | 28 | 2.62 | 21 | 21 | 24-1.50 | 24.75 | 6.5 | 18 | 3.88 | 18.18 | 0.5 | 5.38 | 18.2 | - | 18.19 | 2.75 | |
20 | 30.5 | 2.75 | 23 | 23.12 | 24-1.62 | 27 | 6.62 | 20 | 4 | 20.2 | 0.5 | 5.75 | 20.25 | - | 20.19 | 2.88 | |
22 | 33 | 2.88 | 25.25 | 25.25 | 24-1.75 | 29.25 | 6.75 | 22 | 4.25 | 22.22 | 0.5 | 6 | 22.25 | - | -- | -- | |
24 | 36 | 3 | 27.25 | 27.62 | 24-1.88 | 32 | 6.88 | 24 | 4.5 | 24.25 | 0.5 | 6.25 | 24.25 | - | 24.19 | 3.25 |
Class 600 Flanges

Nom. Pipe Size | O | T | R | X | No.& Dia. of Holes | Bolt Circle Dia. | L2 | H | B2 | L | B | r | L3 | B3 | D | C | THr |
1/2 | 3.75 | 0.56 | 1.38 | 1.5 | 4-0.62 | 2.62 | 2.06 | 0.84 | To be specified by purchaser. | 0.88 | 0.88 | 0.12 | 0.88 | 0.9 | 0.38 | 0.93 | 0.62 |
3/4 | 4.62 | 0.62 | 1.69 | 1.88 | 4-0.75 | 3.25 | 2.25 | 1.05 | 1 | 1.09 | 0.12 | 1 | 1.11 | 0.44 | 1.14 | 0.62 | |
1 | 4.88 | 0.69 | 2 | 2.12 | 4-.075 | 3.5 | 2.44 | 1.32 | 1.06 | 1.36 | 0.12 | 1.06 | 1.38 | 0.5 | 1.41 | 0.69 | |
1-1/4 | 5.25 | 0.81 | 2.5 | 2.5 | 4-0.75 | 3.88 | 2.62 | 1.66 | 1.12 | 1.7 | 0.19 | 1.12 | 1.72 | 0.56 | 1.75 | 0.81 | |
1-1/2 | 6.12 | 0.88 | 2.88 | 2.75 | 4-0.88 | 4.5 | 2.75 | 1.9 | 1.25 | 1.95 | 0.25 | 1.25 | 1.97 | 0.62 | 1.99 | 0.88 | |
2 | 6.5 | 1 | 3.62 | 3.31 | 8-0.75 | 5 | 2.88 | 2.38 | 1.44 | 2.44 | 0.31 | 1.44 | 2.46 | 0.69 | 2.5 | 1.12 | |
2-1/2 | 7.5 | 1.12 | 4.12 | 3.94 | 8-0.88 | 5.88 | 3.12 | 2.88 | 1.62 | 2.94 | 0.31 | 1.62 | 2.97 | 0.75 | 3 | 1.25 | |
3 | 8.25 | 1.25 | 5 | 4.62 | 8-0.88 | 6.62 | 3.25 | 3.5 | 1.81 | 3.57 | 0.38 | 1.81 | 3.6 | 0.81 | 3.63 | 1.38 | |
3-1/2 | 9 | 1.38 | 5.5 | 5.25 | 8-1.00 | 7.25 | 3.38 | 4 | 1.94 | 4.07 | 0.38 | 1.94 | 4.1 | - | 4.13 | 1.56 | |
4 | 10.75 | 1.5 | 6.19 | 6 | 8-1.00 | 8.5 | 4 | 4.5 | 2.12 | 4.57 | 0.44 | 2.12 | 4.6 | - | 4.63 | 1.62 | |
5 | 13 | 1.75 | 7.31 | 7.44 | 8-1.12 | 10.5 | 4.5 | 5.56 | 2.38 | 5.66 | 0.44 | 2.38 | 5.69 | - | 5.69 | 1.88 | |
6 | 14 | 1.88 | 8.5 | 8.75 | 12-1.12 | 11.5 | 4.62 | 6.63 | 2.62 | 6.72 | 0.5 | 2.62 | 6.75 | - | 6.75 | 2 | |
8 | 16.5 | 2.19 | 10.62 | 10.75 | 12-1.25 | 13.75 | 5.25 | 8.63 | 3 | 8.72 | 0.5 | 3 | 8.75 | - | 8.75 | 2.25 | |
10 | 20 | 2.5 | 12.75 | 13.5 | 16-1.38 | 17 | 6 | 10.75 | 3.38 | 10.88 | 0.5 | 4.38 | 10.92 | - | 10.88 | 2.56 | |
12 | 22 | 2.62 | 15 | 15.75 | 20-1.38 | 19.25 | 6.12 | 12.75 | 3.62 | 12.88 | 0.5 | 4.62 | 12.92 | - | 12.94 | 2.75 | |
14 | 23.75 | 2.75 | 16.25 | 17 | 20-1.50 | 20.75 | 6.5 | 14 | 3.69 | 14.14 | 0.5 | 5 | 14.18 | - | 14.19 | 2.88 | |
16 | 27 | 3 | 18.5 | 19.5 | 20-1.62 | 23.75 | 7 | 16 | 4.19 | 16.16 | 0.5 | 5.5 | 16.19 | - | 18.19 | 3.06 |
Class 900 Flanges

Nom. Pipe Size | O | T | R | X | No.& Dia. of Holes | Bolt Circle Dia. | L2 | H | B2 | L | B | r | L3 | B3 | THr |
Sizes 1/2" Thru 2-1/2" Are Identic al To Class 1500. | |||||||||||||||
3 | 9.5 | 1.5 | 5 | 5 | 8-1.00 | 7.5 | 4 | 3.5 | To be specified by purchaser. | 2.13 | 3.57 | 0.38 | 2.13 | 3.6 | 1.63 |
4 | 11.5 | 1.75 | 6.19 | 6.25 | 8-1.25 | 9.25 | 4.5 | 4.5 | 2.75 | 4.57 | 0.44 | 2.75 | 4.6 | 1.88 | |
5 | 13.75 | 2 | 7.31 | 7.5 | 8-1.38 | 11 | 5 | 5.56 | 3.13 | 5.66 | 0.44 | 3.13 | 5.69 | 2.13 | |
6 | 15 | 2.19 | 8.5 | 9.25 | 12-1.25 | 12.5 | 5.5 | 6.63 | 3.38 | 6.72 | 0.5 | 3.38 | 6.75 | 2.25 | |
8 | 18.5 | 2.5 | 10.63 | 11.75 | 12-1.50 | 15.5 | 6.38 | 8.63 | 4 | 8.72 | 0.5 | 4.5 | 8.75 | 2.5 | |
10 | 21.5 | 2.75 | 12.75 | 14.5 | 16-1.50 | 18.5 | 7.25 | 10.75 | 4.25 | 10.88 | 0.5 | 5 | 10.92 | 2.81 | |
12 | 24 | 3.13 | 15 | 16.5 | 20-1.50 | 21 | 7.88 | 12.75 | 4.63 | 12.88 | 0.5 | 5.63 | 12.92 | 3 | |
14 | 25.25 | 3.38 | 16.25 | 17.75 | 20-1.63 | 22 | 8.38 | 14 | 5.13 | 14.14 | 0.5 | 6.13 | 14.18 | 3.25 | |
16 | 27.75 | 3.5 | 18.5 | 20 | 20-1.75 | 24.25 | 8.5 | 16 | 5.25 | 16.16 | 0.5 | 6.5 | 16.19 | 3.38 | |
18 | 31 | 4 | 21 | 22.25 | 20-2.00 | 27 | 9 | 18 | 6 | 18.18 | 0.5 | 7.5 | 18.2 | 3.5 | |
20 | 33.75 | 4.25 | 23 | 24.5 | 20-2.13 | 29.5 | 9.75 | 20 | 6.25 | 20.2 | 0.5 | 8.25 | 20.25 | 3.63 | |
24 | 41 | 5.5 | 27.25 | 29.5 | 20-2.63 | 35.5 | 11.5 | 24 | 8 | 24.25 | 0.5 | 10.5 | 24.25 | 4 |
Class 1500 Flanges

Nom. Pipe Size | O | T | R | X | No.& Dia. of Holes | Bolt Circle Dia. | L2 | H | B2 | L | B | r | L3 | D | B3 | THr |
1/2 | 4.75 | 0.88 | 1.38 | 1.5 | 4-0.88 | 3.25 | 2.38 | 0.84 | To be specified by purchaser. | 1.25 | 0.88 | 0.13 | 1.25 | 0.38 | 0.9 | 0.88 |
3/4 | 5.13 | 1 | 1.69 | 1.75 | 4-0.88 | 3.5 | 2.75 | 1.05 | 1.38 | 1.09 | 0.13 | 1.38 | 0.44 | 1.11 | 1 | |
1 | 5.88 | 1.13 | 2 | 2.06 | 4-1.00 | 4 | 2.88 | 1.32 | 1.63 | 1.36 | 0.13 | 1.63 | 0.5 | 1.38 | 1.13 | |
1-1/4 | 6.25 | 1.13 | 2.5 | 2.5 | 4-1.00 | 4.38 | 2.88 | 1.66 | 1.63 | 1.7 | 0.19 | 1.63 | 0.56 | 1.72 | 1.19 | |
1-1/2 | 7 | 1.25 | 2.88 | 2.75 | 4-1.13 | 4.88 | 3.25 | 1.9 | 1.75 | 1.95 | 0.25 | 1.75 | 0.63 | 1.97 | 1.25 | |
2 | 8.5 | 1.5 | 3.63 | 4.13 | 8-1.00 | 6.5 | 4 | 2.38 | 2.25 | 2.44 | 0.31 | 2.25 | 0.69 | 2.46 | 1.5 | |
2-1/2 | 9.63 | 1.63 | 4.13 | 4.88 | 8-1.13 | 7.5 | 4.13 | 2.88 | 2.5 | 2.94 | 0.31 | 2.5 | 0.75 | 2.97 | 1.88 | |
3 | 10.5 | 1.88 | 5 | 5.25 | 8-1.25 | 8 | 4.63 | 3.5 | 2.88 | 3.57 | 0.38 | 2.88 | -- | 3.6 | 2 | |
4 | 12.25 | 2.13 | 6.19 | 6.38 | 8-1.38 | 9.5 | 4.88 | 4.5 | 3.56 | 4.57 | 0.44 | 3.56 | -- | 4.6 | 2.25 | |
5 | 14.75 | 2.88 | 7.31 | 7.75 | 8-1.63 | 11.5 | 6.13 | 5.56 | 4.13 | 5.66 | 0.44 | 4.13 | -- | 5.69 | 2.5 | |
6 | 15.5 | 3.25 | 8.5 | 9 | 12-1.50 | 12.5 | 6.75 | 6.63 | 4.69 | 6.72 | 0.5 | 4.69 | -- | 6.75 | 2.75 | |
8 | 19 | 3.63 | 10.63 | 11.5 | 12-1.75 | 15.5 | 8.38 | 8.63 | 5.63 | 8.72 | 0.5 | 5.63 | -- | 8.75 | 3 | |
10 | 23 | 4.25 | 12.75 | 14.5 | 12-2.00 | 19 | 10 | 10.75 | 6.25 | 10.88 | 0.5 | 7 | -- | 10.92 | 3.31 | |
12 | 26.5 | 4.88 | 15 | 17.75 | 16-2.13 | 22.5 | 11.13 | 12.75 | 7.13 | 12.88 | 0.5 | 8.63 | -- | 12.92 | 3.63 | |
14 | 29.5 | 5.25 | 16.25 | 19.5 | 16-2.38 | 25 | 11.75 | 14 | -- | -- | 0.5 | 9.5 | -- | 14.18 | -- | |
16 | 32.5 | 5.75 | 18.5 | 21.75 | 16-2.63 | 27.75 | 12.25 | 16 | -- | -- | 0.5 | 10.25 | -- | 16.19 | -- | |
18 | 36 | 6.38 | 21 | 23.5 | 16-2.88 | 30.5 | 12.88 | 18 | -- | -- | 0.5 | 10.88 | -- | 18.2 | -- | |
20 | 38.75 | 7 | 23 | 25.25 | 16-3.13 | 32.75 | 14 | 20 | -- | -- | 0.5 | 11.5 | -- | 20.25 | -- | |
24 | 46 | 8 | 27.25 | 30 | 16-3.63 | 39 | 16 | 24 | -- | -- | 0.5 | 13 | -- | 24.25 | -- |
Class 2500 Flanges

Nom. Pipe Size | O | T | R | X | No.& Dia. of Holes | Bolt Circle Dia. | L2 | H | B2 | L | B | r | L3 | B3 | THr |
1/2 | 5.25 | 1.19 | 1.38 | 1.69 | 4-0.88 | 3.5 | 2.88 | 0.84 | To be specified by purchaser. | 1.56 | 0.88 | 0.13 | 1.56 | 0.9 | 1.13 |
3/4 | 5.5 | 1.25 | 1.69 | 2 | 4-0.88 | 3.75 | 3.13 | 1.05 | 1.69 | 1.09 | 0.13 | 1.69 | 1.11 | 1.25 | |
1 | 6.25 | 1.38 | 2 | 2.25 | 4-1.00 | 4.25 | 3.5 | 1.32 | 1.88 | 1.36 | 0.13 | 1.88 | 1.38 | 1.38 | |
1-1/4 | 7.25 | 1.5 | 2.5 | 2.88 | 4-1.13 | 5.13 | 3.75 | 1.66 | 2.06 | 1.7 | 0.18 | 2.06 | 1.72 | 1.5 | |
1-1/2 | 8 | 1.75 | 2.88 | 3.13 | 4-1.25 | 5.75 | 4.38 | 1.9 | 2.38 | 1.95 | 0.25 | 2.38 | 1.97 | 1.75 | |
2 | 9.25 | 2 | 3.63 | 3.75 | 8-1.13 | 6.75 | 5 | 2.38 | 2.75 | 2.44 | 0.31 | 2.75 | 2.46 | 2 | |
2-1/2 | 10.5 | 2.25 | 4.13 | 4.5 | 8-1.25 | 7.75 | 5.63 | 2.88 | 3.13 | 2.94 | 0.31 | 3.13 | 2.97 | 2.25 | |
3 | 12 | 2.63 | 5 | 5.25 | 8-1.38 | 9 | 6.63 | 3.5 | 3.63 | 3.57 | 0.37 | 3.63 | 3.6 | 2.5 | |
4 | 14 | 3 | 6.19 | 6.5 | 8-1.63 | 10.75 | 7.5 | 4.5 | 4.25 | 4.57 | 0.44 | 4.25 | 4.6 | 2.75 | |
5 | 16.5 | 3.63 | 7.31 | 8 | 8-1.88 | 12.75 | 9 | 5.56 | 5.13 | 5.66 | 0.44 | 5.13 | 5.69 | 3 | |
6 | 19 | 4.25 | 8.5 | 9.25 | 8-2.13 | 14.5 | 10.75 | 6.63 | 6 | 6.72 | 0.5 | 6 | 6.75 | 3.25 | |
8 | 21.75 | 5 | 10.63 | 12 | 12-2.13 | 17.25 | 12.5 | 8.63 | 7 | 8.72 | 0.5 | 7 | 8.75 | 3.75 | |
10 | 26.5 | 6.5 | 12.75 | 14.75 | 12-2.63 | 21.25 | 16.5 | 10.75 | 9 | 10.88 | 0.5 | 9 | 10.92 | 4.25 | |
12 | 30 | 7.25 | 15 | 17.38 | 12-2.88 | 24.38 | 18.25 | 12.75 | 10 | 12.88 | 0.5 | 10 | 12.92 | 4.75 |
Pressure Rating:- Stainless Steel 309/309S Flanges
Pipe Size (inch) | 150 # | 300 # | 600 # | 900 # | 1500 # | 2500 # | ||||||||||||
WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | |
1/2″ | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | SEE 1500 # WEIGHTS | 5 | 4 | 4 | 7 | 7 | 7 | ||
3/4″ | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 3 | 3 | SEE 1500 # WEIGHTS | 6 | 5 | 6 | 8 | 8 | 8 | ||
1″ | 3 | 2 | 2 | 4 | 3 | 3 | 4 | 4 | 4 | SEE 1500 # WEIGHTS | 9 | 8 | 8 | 12 | 11 | 11 | ||
1 1/2″ | 4 | 3 | 3 | 7 | 6 | 6 | 8 | 7 | 8 | SEE 1500 # WEIGHTS | 13 | 12 | 13 | 25 | 22 | 23 | ||
2″ | 6 | 5 | 5 | 9 | 7 | 8 | 12 | 9 | 10 | SEE 1500 # WEIGHTS | 25 | 25 | 25 | 42 | 37 | 39 | ||
2 1/2″ | 8 | 7 | 7 | 12 | 10 | 12 | 18 | 13 | 15 | SEE 1500 # WEIGHTS | 36 | 36 | 35 | 52 | 55 | 56 | ||
3″ | 10 | 8 | 9 | 15 | 13 | 16 | 23 | 16 | 20 | 31 | 26 | 29 | 48 | 48 | 48 | 94 | 83 | 86 |
4″ | 15 | 13 | 17 | 25 | 22 | 27 | 42 | 37 | 41 | 53 | 53 | 54 | 73 | 73 | 73 | 145 | 125 | 130 |
5″ | 19 | 15 | 20 | 32 | 28 | 35 | 68 | 63 | 68 | 86 | 83 | 87 | 130 | 130 | 140 | 245 | 210 | 225 |
6″ | 24 | 19 | 26 | 42 | 39 | 50 | 81 | 80 | 86 | 110 | 110 | 115 | 165 | 165 | 160 | 380 | 325 | 345 |
8″ | 39 | 30 | 45 | 67 | 58 | 81 | 120 | 115 | 140 | 175 | 170 | 200 | 275 | 260 | 300 | 580 | 485 | 530 |
10″ | 52 | 43 | 70 | 91 | 81 | 124 | 190 | 170 | 230 | 260 | 245 | 290 | 455 | 435 | 510 | 1075 | 930 | 1025 |
12″ | 80 | 64 | 110 | 140 | 115 | 185 | 225 | 200 | 295 | 325 | 325 | 415 | 690 | 580 | 690 | 1525 | 1100 | 1300 |
14″ | 110 | 90 | 140 | 180 | 165 | 250 | 280 | 230 | 355 | 400 | 400 | 520 | 940 | NA | 975 | NA | NA | NA |
16″ | 140 | 98 | 180 | 250 | 190 | 295 | 390 | 330 | 495 | 495 | 425 | 600 | 1250 | NA | 1300 | NA | NA | NA |
18″ | 150 | 130 | 220 | 320 | 250 | 395 | 475 | 400 | 630 | 680 | 600 | 850 | 1625 | NA | 1750 | NA | NA | NA |
20″ | 180 | 165 | 285 | 400 | 315 | 505 | 590 | 510 | 810 | 830 | 730 | 1075 | 2050 | NA | 2225 | NA | NA | NA |
22″ | 225 | 185 | 355 | 465 | 370 | 640 | 720 | 590 | 1000 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
24″ | 260 | 220 | 430 | 580 | 475 | 790 | 830 | 730 | 1250 | 1500 | 1400 | 2025 | 3325 | NA | 3625 | NA | NA | NA |
Weight Chart:- Stainless Steel 309/309S Flanges
- Class 150 Weight
- Class 300 Weight
- Class 600 Weight
- Class 900 Weight
- Class 1500 Weight
- Class 2500 Weight
Class 150 Flanges Weight

NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
NPS (Inches) | DN (mm) | FLANGE MM | FLANGE THICKNESS | SOW SW | WN | BLIND |
1/2 | 15 | 88.9 | 11.2 | 0.4 | 0.5 | 0.4 |
3/4 | 20 | 98.6 | 12.7 | 0.6 | 0.7 | 0.6 |
1 | 25 | 108 | 14.2 | 0.8 | 1 | 0.9 |
1 1/4 | 32 | 117.3 | 15.7 | 1 | 1.3 | 1.2 |
1 1/2 | 40 | 127 | 17.5 | 1.3 | 1.7 | 1.5 |
2 | 50 | 152.4 | 19.1 | 2.1 | 2.6 | 2.4 |
2 1/2 | 65 | 177.8 | 22.4 | 3.3 | 4.1 | 3.9 |
3 | 80 | 190.5 | 23.9 | 3.9 | 4.9 | 4.9 |
3 1/2 | 90 | 215.9 | 23.9 | 4.8 | 6.1 | 6.2 |
4 | 100 | 228.6 | 23.9 | 5.3 | 6.8 | 7.0 |
5 | 125 | 254 | 23.9 | 6.1 | 8.6 | 8.6 |
6 | 150 | 279.4 | 25.4 | 7.5 | 10.6 | 11.3 |
8 | 200 | 342.9 | 28.4 | 12.1 | 17.6 | 19.6 |
10 | 250 | 406.4 | 30.2 | 16.5 | 24 | 28.6 |
12 | 300 | 482.6 | 31.8 | 26.2 | 36.5 | 43.2 |
14 | 350 | 533.4 | 35.1 | 34.6 | 48.4 | 58.1 |
16 | 400 | 596.9 | 36.6 | 44.8 | 60.6 | 76.1 |
18 | 450 | 635 | 39.6 | 48.9 | 68.3 | 93.7 |
20 | 500 | 698.5 | 42.9 | 61.9 | 84.5 | 122.0 |
24 | 600 | 812.8 | 47.8 | 86.9 | 115 | 185.0 |
Class 300 Flanges Weight

NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
1/2 | 15 | 95.3 | 14.2 | 0.6 | 0.8 | 0.6 |
3/4 | 20 | 117.3 | 15.7 | 1.1 | 1.3 | 1.1 |
1 | 25 | 124 | 17.5 | 1.4 | 1.5 | 1.4 |
1 1/4 | 32 | 133.4 | 19.1 | 1.7 | 2.0 | 1.8 |
1 1/2 | 40 | 155.5 | 20.6 | 2.5 | 2.9 | 2.7 |
2 | 50 | 165.1 | 22.4 | 2.9 | 3.4 | 3.2 |
2 1/2 | 65 | 190.5 | 25.4 | 4.3 | 5.2 | 4.9 |
3 | 80 | 215.9 | 28.4 | 5.9 | 6.9 | 6.8 |
3 1/2 | 90 | 228.6 | 30.2 | 7.3 | 8.7 | 8.7 |
4 | 100 | 254 | 31.8 | 9.6 | 11.2 | 11.5 |
5 | 125 | 279.4 | 35.1 | 12.3 | 15.1 | 15.6 |
6 | 150 | 317.5 | 36.6 | 15.6 | 19.1 | 20.9 |
8 | 200 | 381 | 41.1 | 24.2 | 29.9 | 34.3 |
10 | 250 | 444.5 | 47.6 | 34.1 | 42.7 | 53.3 |
12 | 300 | 520.7 | 50.8 | 49.8 | 61.8 | 78.8 |
14 | 350 | 584.2 | 53.8 | 69.9 | 85.8 | 105.0 |
16 | 400 | 647.7 | 57.2 | 88.1 | 106.0 | 137.0 |
18 | 450 | 711.2 | 60.5 | 109.0 | 131.0 | 175.0 |
20 | 500 | 774.7 | 63.5 | 134.0 | 158.0 | 221.0 |
24 | 600 | 914.4 | 70.0 | 201.0 | 230.0 | 339.0 |
Class 600 Flanges Weight

NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
1/2 | 15 | 95.3 | 14.2 | 0.7 | 0.9 | 0.8 |
3/4 | 20 | 117.3 | 15.7 | 1.3 | 1.5 | 1.3 |
1 | 25 | 124.0 | 17.5 | 1.5 | 1.8 | 1.6 |
1 1/4 | 32 | 133.4 | 20.6 | 2 | 2.5 | 2.2 |
1 1/2 | 40 | 155.4 | 22.4 | 3 | 3.5 | 3.3 |
2 | 50 | 165.1 | 25.4 | 3.6 | 4.4 | 4.2 |
2 1/2 | 65 | 190.5 | 28.4 | 5.3 | 6.4 | 6.1 |
3 | 80 | 209.6 | 31.8 | 7 | 8.5 | 8.4 |
3 1/2 | 90 | 228.6 | 35.1 | 8.8 | 10.7 | 11 |
4 | 100 | 273.1 | 38.1 | 14.5 | 17.4 | 17.3 |
5 | 125 | 330.2 | 44.5 | 24.4 | 29.2 | 29.4 |
6 | 150 | 355.6 | 47.8 | 28.7 | 34.9 | 36.1 |
8 | 200 | 419.1 | 55.6 | 43.4 | 53.9 | 58.9 |
10 | 250 | 508 | 63.5 | 70.3 | 86.5 | 97.5 |
12 | 300 | 558.8 | 66.5 | 84.2 | 103.0 | 124 |
14 | 350 | 603.3 | 69.9 | 98.7 | 122.0 | 151 |
16 | 400 | 685.8 | 76.2 | 142.0 | 170.0 | 214 |
18 | 450 | 743 | 82.6 | 173.0 | 204.0 | 272 |
20 | 500 | 812.8 | 88.9 | 220.0 | 254.0 | 349.0 |
24 | 600 | 939.8 | 101.6 | 312.0 | 358.0 | 533.0 |
Class 900 Flanges Weight

NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
1/2 | 15 | 120.7 | 22.4 | 1.8 | 1.9 | 1.8 |
3/4 | 20 | 130 | 25.4 | 2.4 | 2.6 | 2.4 |
1 | 25 | 149.4 | 28.4 | 3.6 | 3.7 | 3.6 |
1 1/4 | 32 | 158.8 | 28.4 | 4 | 4.3 | 4.1 |
1 1/2 | 40 | 177.8 | 31.8 | 5.5 | 5.9 | 5.8 |
2 | 50 | 215.9 | 38.1 | 10.2 | 10.8 | 10 |
2 1/2 | 65 | 244.3 | 41.1 | 13.9 | 15 | 14 |
3 | 80 | 241.3 | 38.1 | 11.6 | 13.7 | 13.1 |
4 | 100 | 292.1 | 44.5 | 19.7 | 22.5 | 26.9 |
5 | 125 | 349.3 | 50.8 | 31.9 | 37.4 | 36.5 |
6 | 150 | 381 | 55.6 | 41.1 | 47.7 | 47.4 |
8 | 200 | 469.9 | 63.5 | 70.7 | 81.3 | 82.5 |
10 | 250 | 546.1 | 69.9 | 101.0 | 119 | 122.0 |
12 | 300 | 609.6 | 79.2 | 133.0 | 157.0 | 173.0 |
14 | 350 | 641.4 | 85.6 | 153.0 | 180.0 | 206.0 |
16 | 400 | 704.9 | 88.9 | 185.0 | 217.0 | 259.0 |
18 | 450 | 787.4 | 101.6 | 258.0 | 292.0 | 367.0 |
20 | 500 | 857.3 | 108.0 | 317.0 | 362.0 | 463.0 |
24 | 600 | 1041.4 | 139.7 | 606.0 | 665.0 | 876.0 |
Class 1500 Flanges Weight

NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | ||||
NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | SOW SW | WN | BLIND |
1/2 | 15 | 120.7 | 22.4 | 1.8 | 1.9 | 1.8 |
3/4 | 20 | 130 | 25.4 | 2.4 | 2.6 | 2.4 |
1 | 25 | 149.4 | 28.4 | 3.6 | 3.7 | 3.6 |
1 1/4 | 32 | 158.8 | 28.4 | 4 | 4.3 | 4.1 |
1 1/2 | 40 | 177.8 | 31.8 | 5.5 | 5.9 | 5.8 |
2 | 50 | 215.9 | 38.1 | 10.2 | 10.8 | 10.1 |
2 1/2 | 65 | 244.3 | 41.1 | 13.9 | 15 | 14 |
3 | 80 | 266.7 | 47.8 | 19.9 | 19.1 | |
4 | 100 | 311.2 | 53.8 | 29.9 | 29.9 | |
5 | 125 | 374.7 | 73.2 | 55.4 | 58.4 | |
6 | 150 | 393.7 | 82.6 | 68.4 | 71.8 | |
8 | 200 | 482.6 | 91.9 | 117 | 122 | |
10 | 250 | 584.2 | 108 | 194.0 | 210.0 | |
12 | 300 | 673.1 | 124 | 288.0 | 316.0 | |
14 | 350 | 749.3 | 133.4 | 380.0 | 420 | |
16 | 400 | 825.5 | 146.1 | 485.0 | 558.0 | |
18 | 450 | 914.4 | 162.1 | 644.0 | 760.0 | |
20 | 500 | 984.3 | 177.8 | 775.0 | 965.0 | |
24 | 600 | 1168.4 | 203.2 | 1232.0 | 1558.0 |
Class 2500 Flanges Weight

NOMINAL SIZE | DIMENSIONS | WEIGHT (KG) | |||
NPS (Inches) | DN (mm) | FLANGE OD A MM | FLANGE THICKNESS D MM | WN | BLIND |
1/2 | 15 | 133.4 | 30.2 | 3.1 | 3.0 |
3/4 | 20 | 139.7 | 31.8 | 3.7 | 3.5 |
1 | 25 | 158.8 | 35.1 | 5.2 | 5.0 |
1 1/4 | 32 | 184.2 | 38.1 | 7.7 | 7.4 |
1 1/2 | 40 | 203.2 | 44.5 | 10.9 | 10.4 |
2 | 50 | 235 | 50.8 | 16.2 | 15.6 |
2 1/2 | 65 | 266.7 | 57.2 | 23.7 | 22.6 |
3 | 80 | 304.8 | 66.5 | 36.2 | 34.8 |
4 | 100 | 355.6 | 76.2 | 55.3 | 53.9 |
5 | 125 | 419.1 | 91.9 | 92.5 | 90.8 |
6 | 150 | 482.6 | 108 | 143.0 | 141 |
8 | 200 | 552.5 | 127 | 215.0 | 214 |
10 | 250 | 673.1 | 165.1 | 406.0 | 411.0 |
12 | 300 | 762 | 184.2 | 572.0 | 592.0 |
Different Types:- Stainless Steel 309/309S Flanges












Price List:- Stainless Steel 309/309S Flanges
- Stainless Steel 309 Blind Flanges
USD $2.1 – $10.01 / Kg - Stainless Steel 309S Reducing Flanges
USD $2.05 – $10.15 / Kg - Stainless Steel 309 Plate Flange
USD $2.45 – $10.45 / Kg - SS 309 Threaded Flanges
USD $2.18 – $10.78 / Kg - UNS S30900 Weld Neck Flanges
USD $2.14 – $10.39 / Kg - Astm A182 SS 309 RTJ Flanges
USD $2.11 – $8 / Kg - SS 309S Slip On Flanges
USD $2.13 – $10.89 / Kg

Application Industries
- Construction
- Bridges
- Petrochemical Industry
- Ship Building
- Engineering
- General Structural Purposes
- Offshore and Onshore Services

Packaging Industries
We Sumit Impex Metal Ensure the Best Quality of Packing, Because It Plays an Important Role Especially in the Case of International Shipments in Which Consignment Passes Through Various Channels to Reach the Ultimate Destination, So We Put Extraordinary Concern Regarding Packaging.
We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
- Boxes and Crates
- Shrink-wrapped
- Carton boxes
- Wooden pallets
- Wooden boxes
- Wooden crates

Testings (Destructive, Non Destructive)
- Mechanical Testing Such as Tensile, Elongation, Reduction of Area
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
- Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
- Positive Material Identification – PMI Testing
- Chemical Analysis – Spectro Analysis
- Intergranular Corrosion (IGC) Test
- Pitting Resistance Test
- Dye Penetrant Test (DP Test)
- Bend Test
- Micro Test
- Macro Test
- Hardness Test
- Flaring Test
- Flattening Test
- Hydrostatic Test
- Radiography Test
- Ultra Sonic Test (UT)
- Eddy Current Testing
- Impact Test
