ASTM A691 A691M - 19 EFW Welded Pipe
The A691 specification covers carbon and alloy steel tubes, electrofusion welded with the addition of filler metals, made from pressure vessel quality plate in a wide range of analyses and strength grades, suitable for high temperature and high pressure use.
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of astm a691 a691m - 19 efw welded pipe in China, also supports customized service with low price. Welcome to wholesale discount astm a691 a691m - 19 efw welded pipe for sale here from our factory. Contact us for free sample.
Erw And Efw Pipe Suppplier-GNEE
A691 ERW Pipe Specification
Specification A691 covers electrofusion welded carbon and alloy steel pipe with added filler metal, made from pressure vessel quality steel plates of varying analysis and strength grades, suitable for high temperature and pressure service. Heat treatment may or may not be required to achieve the required mechanical properties or to comply with applicable code requirements. Supplementary requirements may be provided when additional testing or inspection is required. GNEE Group has been supplying A691 alloy steel pipes for 16 years. You are welcome to consult at any time.
| Type | ASTM A691 A691M - 19 EFW Pipe | |
|---|---|---|
| Grades | 1-1/4CR, 2-1/4CR, 5CR, 9CR, 9, P5, P9, P11, P12, P22, P91 | |
| ASTM A691 | Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures | |
| Class Designation | Class 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 70, 71, 72, 73.. | |
| Size | Outer Diameter | LSAW 457-1422mm 18-56 inch |
| Wall Thickness | 2-60mm SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS |
|
| Length | Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request |
|
| Ends | Plain end/Beveled, protected by plastic caps on both ends, cut square, grooved,threaded and coupling, etc | |
| Surface Treatment | Bare, Painting black, galvanized, anti-corrosion PE PP/EP/FBE coating | |
| Technical Methods | Hot-rolled/Cold-drawn/Hot-expanded | |
| Testing Methods | Eddy current testing, Hydrostatic testing or Ultrasonic examination, NDT, and also with chemical and physical property inspection | |
| Application | Conveying oil, gas, and water | |
| MOQ | 30 ton | |
| Production Capacity | 5000 T/M | |
| Delivery Time | Within 30 days | |
Heat Treatment of A691 Material
| Pipe Grade | ASTM Specification | Post-Weld Heat-Treat Temperature Range (Stress Relieving), °F (°C) | Normalizing Temperature max unless otherwise noted, | Quenching Temperature max unless otherwise noted,°F (°C) | Tempering Temperature, min, °F (°C) |
| CM-65 | A 204/A 204M | 1100 to 1200 (590 to 650) | 1700 (925) | … | … |
| CM-70 | A 204/A 204M | 1100 to 1200 (590 to 650) | 1700 (925) | … | … |
| CM-75 | A 204/A 204M | 1100 to 1200 (590 to 650) | 1700 (925) | … | … |
| CMSH-70 | A 537/A 537M | 1100 to 1200 (590 to 650) | 1700 (925) | … | … |
| CMS-75 | A 299/A 299M | 1100 to 1200 (590 to 650) | 1700 (925) | … | … |
| CMSH-80 | A 537/A 537M | 1100 to 1200 (590 to 650) | A | 1700( 925) | 1100 to 1250 (590 to 675) |
| 1/2CR | A 387/A 387M | 1100 to 1300 (590 to 705) | 1850 (1010) | 1700( 925) | 150 to 1375 (620to745) |
| 1CR | A 387/A 387M | 1100 to 1350 (590 to 730) | 1850 (1010) | 1700 (925) | 150 to 1375 (620to745) |
| 11⁄4CR | A 387/A 387M | 1100 to 1375 (590 to 745) | 1850 (1010) | 1700 (925) | 150 to 1375 (620to745) |
| 21⁄4CR | A 387/A 387M | 1200 to 1400 (650 to 760) | 1850 (1010) | 1700 (925) | 250 to 1400(675 to760) |
| 3CR | A 387/A 387M | 1200 to 1400 (650 to 760) | 1850 (1010) | 1700 (925) | 250 to1400 (675 to760) |
| 5CR | A 387/A 387M | 1200 to 1400 (650 to 760) | 1850 (1010) | 1650 (900) | 1300 to1400 (705 to760) |
| 9CR | A 387/A 387M | 1325 to 1375 (715 to 745) | B | … | 1325 to1375 (715 to745) |
| ASTM A691 Gr.91 | A 387/A 387M | 1350 to 1420 (730 to 770) | 11900 to 2000 (1040 to 1095) | 1900 min (1040 min) | 1350 to 1440 (730 to 780) |
Tensile Requirements of A691 welded steel pipe
| Grade | Tensile (MPa) | Yield (MPa) | Elong. (50mm) | Reduc'n of Area* |
|---|---|---|---|---|
| 1CR | 380 – 550 | 230 min | 22% min | – |
| 1-1/4CR | 415 – 585 | 240 min | 22% min | – |
| 2-1/4CR, 5CR, 9CR | 415 – 585 | 205 min | 18% min | 40% min |
| 91 | 415 – 585 | 205 min | 18% min | 40% min |
| 2 | 485 – 620 | 310 min | 22% min | – |
| 1-1/4CR | 515 – 690 | 310 min | 22% min | – |
| 1CR | 450 – 585 | 275 min | 22% min | – |
| 2-1/4CR, 5CR, 9CR | 515 – 690 | 310 min | 18% min | 40% min |
| 91 | 585 – 760 | 415 min | 18% min | – |
A691 Welded Pipe Show
A691 welded pipe Supplier-GNEE
GNEE Pipe Exhibition
GNEE Pipe Inspection
Packaging and shipping
Other EFW Pipe
ASTM A672 Carbon Steel EFW Pipes
Hot Tags: astm a691 a691m - 19 efw welded pipe, China astm a691 a691m - 19 efw welded pipe manufacturers, suppliers, factory, API Welded Pipe, A671 EFW Pipe, Line Pipes, A671 Pipe, Hot dip Galvanized Steel Pipes, ASTM A671 EFW Welded Pipe
Send Inquiry
