A691 1-1/4CR Alloy EFW Pipe is an alloy steel pipe manufactured using the Electric Fusion Welding (EFW) process. The alloy composition of this steel pipe contains a high percentage of Chromium (Cr), specifically 1-1/4% Cr, hence the name 1-1/4CR.
GNEE uses the EFW process to ensure high quality and reliability of the pipe. The process uses high-frequency induction heating to melt the pipe ends and then applies pressure to weld, resulting in a strong and well-sealed weld.
A691 1-1/4CR Alloy Steel Pipe is suitable for a variety of environments and is commonly used in industries such as oil, gas, chemicals, and power.
ASTM A691 Welded Pipe
Chemical Composition of A691 1-1/4CR EFW tube
| 1CR | 1-1/4CR | |
| C | 0.05-0.17 | 0.05-0.17 |
| Mn | 0.40-0.65 | 0.40-0.65 |
| P | 0.025 | 0.025 |
| S | 0.025 | 0.025 |
| Si | 0.15-0.40 | 0.50-0.80 |
| Cr | 0.80-1.15 | 1.00-1.50 |
| Mo | 0.45-0.60 | 0.45-0.65 |
| V | - | - |
Tensile Requirements of A691 1-1/4CR Welded Pipes
| Grade | Tensile (MPa) | Yield (MPa) | Elong. (50mm) | Reduc'n of Area* |
|---|---|---|---|---|
| 1-1/4CR | 415 - 585 | 240 min | 22% min | - |
ASTM A691 1-1/4CR Pipe Specification
Standard and Grades: ASTM A691 1-1/4CR, 2-1/4CR, 2-1/4CR, 3CR, 5CR, 9CR, 91
Material types: Chrome Moly Welded Pipe
Manufacturing types: EFW Electric-Fusion-Welded
Sizes: 16" to 60"
Wall thickness: SCH 2o, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, up to 3 inch
Length: 6 meters, 12 meters or customized.
Surface treatment: Painted, Natural, 3PE, FBE
Advantages of Choosing GNEE A691 tubings
GNEE can provide seamless/ ERW/ welded/ fabricated etc. sizes. Shapes are round, square, rectangular, hydraulic etc.
GNEE has 10 black straight seam welded pipe production lines, 6 galvanized pipe production lines, 3 spiral welded pipe production lines, and 1 JCOE LSAW steel pipe production line, with an annual output of 50,000 tons of A691 1-1/4CR steel pipes.
If you have any questions about product information or ordering, please feel free to contact us for more details!sales@gneetube.com
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FAQ
Q: Do you have quality control system?
A: Yes, we have our own quality control laboratory.Third party testing servicesare also available.
Q. Can you provide samples?
A.We can provide them for free, you need to bear the shipping cost.
Q.What is the delivery time?
A.Within 7-15 days after we confirm your request.
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