For Export (for other than India) Email: export3@jfengg.com / Phone: +91-9833323751 / +91-22-23634937
Alloy steel F9 flanges are widely recognized for their robust properties, combining high-strength characteristics with excellent corrosion resistance. F9 grade alloy steel in flanges offers numerous advantages due to its distinctive features.
Alloy steel F9 is a part of the class of materials known as 'Chromium-Molybdenum steel.' It has 9% chromium and 1% molybdenum, which provide the alloy with superior mechanical properties.
The chromium component in F9 flanges gives them extraordinary resistance to oxidation and corrosion. This property is essential for flanges, which often need to operate in highly corrosive environments or under the influence of various chemical substances. Oxidation and corrosion can lead to material degradation over time, and the F9 alloy's resistance provides a durable solution for applications where such resistance is required.
The hardness and tensile strength of F9 alloy steel flanges are also noteworthy. They exhibit high yield strength, which allows them to withstand significant stress before deformation. This characteristic makes F9 flanges highly resistant to mechanical wear and tear, contributing to their longevity and reliable performance over extended periods.
Moreover, F9 flanges exhibit excellent weldability. They can be seamlessly integrated into various systems using conventional welding methods. This property enables easy fabrication and installation, simplifying the assembly process for complex structures. Despite their high strength and toughness, F9 flanges exhibit good machinability, making them suitable for precision applications where precise cuts and forms are required.
It's also crucial to note the impact resistance of F9 flanges. In challenging conditions where they are subjected to intense forces or sudden impacts, these flanges display a high degree of toughness. They can absorb energy without cracking or fracturing, ensuring sustained functionality in demanding situations.
In terms of thermal conductivity, alloy steel F9 flanges outperform many other materials. They offer efficient heat transfer, which can be vital in many applications where temperature regulation is critical. This property, in combination with their superior resistance to thermal expansion, allows F9 flanges to maintain their dimensional stability even when subjected to drastic temperature changes.
| 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. |
| STANDARD | UNS | WERKSTOFF NR. | Trade Name |
| Alloy Steel F9 | K90941 | 1.7386 | 9Cr-1Mo |
| Grade | C | Mn | Si | P | S | Cr | Mo |
| Alloy Steel F9 | 0.15 max | 0.3-0.6 | 0.5 - 1 | 0.03 | 0.03 | 8 - 10 | 0.9 - 1.1 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min |
| Alloy Steel F9 | 380 | 585 | 20 |
| 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 |
| 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 | ||
| ASTM A182 Alloy Steel A182 F9 Slip On Flanges | USD $5.25 - $10.55 / Piece (FOB Price) on request |
| Alloy Steel A182 F9 Weld Neck Flanges | USD $5.25 - $10.55 / Piece (FOB Price) on request |
| Alloy Steel A182 F9 Lap Joint Flanges | USD $5.25 - $10.55 / Piece (FOB Price) on request |
| Alloy Steel A182 F9 Threaded Flanges | USD $5.25 - $10.55 / Piece (FOB Price) on request |
| UNS K90941 Socket Weld Flanges | USD $5.25 - $10.55 / Piece (FOB Price) on request |
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.
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.
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report
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.
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:
