Home > Alloy Steel > Alloy Steel Flanges
Alloy steel flangesare fittings employed in piping systems where alloy steel is favored for its superior mechanical characteristics, such as high strength, toughness, and resistance to wear. Alloy steel includes extra alloying elements like chromium, molybdenum, nickel, or vanadium, which give the material particular properties.
| ASTM A182 Flange Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
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| ASME SA182m Alloy Steel SORF Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Alloy Steel ASTM A182 Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Alloy Steel Flange Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| Alloy Steel FlangeJIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| Alloy Steel FlangeUNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| ASTM A182 FlangeEN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Most common types of ASME SA182m Alloy Steel Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| ASTM A182 Flange Production technique |
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| ASTM A182 Alloy Steel Flange Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| ASTM A182 Flange Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| ASTM A182 Alloy Steel Flange Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Alloy Steel ASTM A182 Flange Origin | Indian / West Europe / Japan / USA / Korean |
| Manufacturer of Alloy Steel Flange | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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| Alloy Steel Flange Uses & application |
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| Alloy Steel ASTM A182 Flange Export to | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Auckland, Peru, etc |
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A182 F5 | ≤0.15 | ≤0.6 | ≤0.5 | ≤0.04 | ≤0.03 | 4-6 | 0.44-0.65 |
| A182 F9 | ≤0.15 | ≤0.6 | 1.00 | ≤0.03 | ≤0.03 | 8-10 | 0.90-1.10 |
| A182 F11 | 0.05-0.2 | 0.3-0.8 | 0.5-1 | ≤0.030 | ≤0.030 | 1-1.5 | 1-1.5 |
| A182 F22 | 0.05-0.15 | 0.3-0.6 | ≤0.5 | ≤0.04 | ≤0.04 | 2-2.5 | 0.87-1.13 |
| A182 F91 | 0.05-0.15 | 0.3-0.6 | ≤0.5 | ≤0.04 | ≤0.04 | 2-2.5 | 0.87-1.13 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A182 F5 | 415 – 585 | ≥205 | ≥20 |
| A182 F9 | 380 min | 585 min | ≥30 |
| A182 F11 | 415 – 585 | ≥205 | ≥20 |
| A182 F22 | 415-585 | ≥205 | ≥20 |
| A182 F91 | ≥590 | ≥415 | ≥20 |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With modern production facilities strategically positioned in the New Zealand, we maintain an extensive inventory of more than 25,000 tons of top-quality materials kept ready in stock.
Reach out to us for a fast quote tailored to your needs.
We supply these Alloy Steel Flanges conforming to DIN, ISO, JIS or ANSI Standard.
Because alloy steel flanges offer outstanding mechanical properties and hold up against wear, corrosion, and high temperatures, they see broad use across many industries. You’ll find these flanges applied extensively in the oil and gas, petrochemical, power generation, and aerospace industries. They serve a key role in connecting equipment, valves, and piping systems. Thanks to their remarkable strength, toughness, and resistance to wear, they are ideal for uses subjected to harsh operating conditions, including high temperatures, elevated pressures, and corrosive surroundings.
Yes, Alloy steel flanges can be readily welded with standard welding methods, providing easy fabrication and installation while preserving mechanical properties.
Alloy steel flangesneed minimal upkeep thanks to their corrosion resistance and durability, though occasional inspections and cleaning may be required to guarantee peak performance and longevity.
Yes, alloy steel can be recycled, which makes alloy steel flanges eco-friendly and supports sustainability efforts.
The highest operating temperature for alloy steel flanges is determined by the particular alloy grade and how thermally stable it is. Certain alloy steel grades can endure temperatures reaching 1000°C or beyond.
| 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 |
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