ASTM A691 1-1/4Cr CL22 straight seam welded pipe is made of low carbon alloy steel and processed by straight seam welding process. It is widely used in petroleum, chemical, electric power, nuclear energy and other fields for conveying high temperature, high pressure, flammable, explosive or corrosive media.
Among them, "1-1/4Cr" indicates the chromium content of the steel pipe, specifically 1.25% chromium, and "CL22" indicates the heat treatment state. Equivalent to seamless pipe SA-335 P22.
In the power industry, ASTM A691 1-1/4CrCL22 straight seam welded pipe is used as an alloy steel pipe for power plant and power station equipment. It has the performance of weathering steel, especially in high temperature and high pressure environment, its performance is particularly outstanding.
ASTM A691 Cl22 ERW Pipe
Chemical and Mechanical Properties of ASTM A691 1-1/4 Grade CR 22 Material Pipes
| Chemical Composition (wt%) | Typical Mechanical Properties |
|---|---|
| C (Carbon) | Max 0.20 |
| Cr (Chromium) | 2.25 |
| Mo (Molybdenum) | 1.00 |
| Mn (Manganese) | Max 1.25 |
| Si (Silicon) | Max 0.50 |
| S (Sulfur) | Max 0.035 |
| P (Phosphorus) | Max 0.035 |
| Tensile Strength (MPa) | Min 415 |
| Yield Strength (MPa) | Min 240 |
| Elongation (%) | Min 22 |
ASTM A691 Pipe Specifications
Available Sizes:
1/2~24, 24~80 Inch
Wall Thickness:
2mm to 100mm
Pipe Specifications in accordance with ASME B36.10M or B36.19M:
40, 60, Standard Wall (STD), Extra Strong (XS), Double Extra Strong (XXS)
Common Grades:
ASTM A691 Gr 11, A691 Gr.91, A691 9cr, A691 5cr, A691m, A691 1 1/4cr Cl22, A691 Cm70, A691 Class 22, A691 Gr.5cr Cl22, A691-91, A691 Grade 2.1/4cr, A691 Class 42, A691 11/4cr Cl22
Heat Treatment:
+A, +SRA, +LC, +N, Q+T
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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