ASTM A181 Flanges Manufacturers
SA-181-70 Weld Neck Flanges manufacturer in India as per ANSI / ASME B16.5, B16.47, BS4504, B16.48, BS 10, and EN-1092-1 standard
ASTM A181 Grade 1 is a carbon steel material specification for non-standard, as-forged pipeline components such as flanges, pipe fittings, rings, valve parts, and round bars. These parts are commonly used in industrial piping systems. The specification includes two classes: ASTM A181 Class 60 and Class 70. Components made under this specification have a maximum weight limit of 10,000 lbs.
There are various types of ASTM A181 flanges, including weld neck, slip-on, threaded, socket weld, orifice, spectacle blind, long weld neck, and reducing flanges.
SA 181 Grade 1 is widely used across different industries due to its strength. It is less likely to fail under stress compared to other steel types, making it ideal for applications where high strength is required. SA-181-70 shares the same basic composition of iron and carbon, with carbon content up to 2.1%. As the carbon content increases, the steel becomes harder and stronger after heat treatment but less flexible. Without heat treatment, its weldability decreases.
ASTM A181 flanges are effective in handling high-pressure applications, such as hydraulic systems, due to their ability to withstand bending stress and seal pipe ends securely.
A181 Flange Price List
| Type | Description | USA FOB Price | Malaysia FOB Price | Europe FOB Price | Singapore FOB Price | Saudi Arabia (KSA) FOB Price | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Unit Per mtr | Unit Per mtr | Unit Per mtr | Unit Per mtr | Unit Per mtr | |||||||
| ASTM A181 flange | Size : 1″NB x 300lb , SLIP ON | US $ | 2.01 | Malaysia Ringgit | 8.18 | Euro | 1.69 | Singapore Dollar | 2.69 | Saudi Riyal | 7.54 |
Standard Specification Of ASTM A181 flange
- Material : ASTM A181 Class 70 CL1/CL2
- Size Range: 1/2″ (15 NB) to 48″ (1200NB), ASME B16.47 Flanges size range: 26″ to 60″
- Typical manufacturing specifications: A181 Grade 60 , ASME A181 Grade 60, MSS SP 44, ASME B16.47, ASME B16.5, NORSOK L-005, API 6A
- Origin: European Origin, Indian Origin, US Origin, Korean Origin, Sweden Origin, Ukraine Origin, Japanese Origin Materials
- A181 CL70 Carbon Steel Flanges Manufacturing Dimensions: 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.
- 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), LJ, FM , R.T.J , R.J and so on
- ANSI A181 CL70 Carbon Steel Flanges: 150 to 2500 Size: 1/2″-24″
- AWWA A181 CL70 Carbon Steel Flanges: classes B, D, E, F Size: 3″-144″
- ANSI B16.5 ASTM A181 Class 70 Carbon Steel Flanges pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for ASME B16.5
- ANSI B16.47 ASTM A181 Class 70 Carbon Steel Flanges pressure classes: 75, 150, 300, 400, 600, 900 for ASME B16.47
Common Types Of SA 181 gr 1 Blind Flange
Manufacturer and exporter of ASTM A181 grade 1 Socket Weld Flanges in Raised Face, Flate Face, and Ring Type Joint
ASTM A181 flange
ASTM A181 class 60 Blind Flanges
ASTM A181 class 70 Slip On Flange
ASTM A181 grade 1 Weld Neck Flanges
SA 181 gr 1 Blind Flange
A181 class 70 Slip On Flange
A181 class 70 Slip On Flange Pressure Rating
| ASME/ANSI B 16.5 | A181 Grade 60 Welding Neck Flange, A181 Grade 60 Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, A181 Grade 60 Lap Joint Flange, Threaded Flange, A181 Grade 60 Ring Type Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | A181 Grade 60 Welding Neck Flange, A181 Grade 60 Blind Flange [Series A & B] |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | A181 Grade 60 Welding Neck Flange, A181 Grade 60 Slip on Flange, A181 Grade 60 Threaded Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| BS 4504 SEC 3.1 | A181 Grade 60 Welding Neck Flange, A181 Grade 60 Hubbed Slip on Flange, A181 Grade 60 Hubbed Threaded Flange, Lapped Pipe End Flange, A181 Grade 60 Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | A181 Grade 60 Welding Neck Flange, A181 Grade 60 Hubbed Slip-On Hubbed Threaded, Plate Flange, A181 Grade 60 Loose Plate With Weld On Plate Collar, Blank Flange |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | A181 Grade 60 Welding Neck Flange, Socket Welding Flange, A181 Grade 60 Slip-On Flange, A181 Grade 60 Blind Flange, A181 Grade 60 Screwed Boss Flange, A181 Grade 60 Lapped Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | A181 Grade 60 Welding Neck Flange, A181 Grade 60 Plate Slip-On Flange, A181 Grade 60 Screwed Boss Flange, Slip-On Boss Flange, A181 Grade 60 Blind Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
ASTM A181 Flanges Composition Chart
| Carbon | Manganese | Phosphorus | Sulphur | Silicon |
|---|---|---|---|---|
| 0.35 max | 1.10 max | 0.050 max | 0.050 max | 0.10 – 0.35 |
SA 181 gr 1 Blind Flange Mechanical Properties Chart
| Tensile Strength, ksi | Yield Strength, ksi | Elongation, % | Reduction of Area, % |
|---|---|---|---|
| 60 min | 30 min | 22 min | 35 min |
| Tensile Strength, ksi | Yield Strength, ksi | Elongation, % | Reduction of Area, % |
|---|---|---|---|
| 70 min | 36 min | 18 min | 24 min |
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