The ASTM A691 specification covers carbon and alloy steel pipe, electric fusion welded with the addition of filler metal, suitable for high temperature and high pressure service.
ASTM A691 1 CR Alloy Steel Welded Pipes also known as Chrome-Moly Alloy Steel Pipes produced by GNEE are high temperature pipes and tubes and are stocked in round, square, rectangular, coiled, "U" shaped, and hydraulic tube forms.It must undergo stress treatment, X-ray inspection and water pressure test before leaving the factory.
Alloy ASME SA691 Gr.1 CR EFW Pipe
Chemical Composition(%) of ASTM A691 Alloy Steel Pipe
| Grade | Chemical Composition(%) | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| Grade 1 CR | 0.05-0.17 | 0.40-0.65 | ≤0.025 | ≤0.025 | 0.15-0.40 | 0.80-1.15 | 0.45-0.60 |
Mechanical & Physical Properties of ASTM A691 Grade 1 CR Alloy Steel Pipe
| Grade | Mechanical property | ||||||
| Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) | |||||
| Grade 1 CR | 380-550 | ≥230 | ≥22 | ||||
Specification of ASTM A691 1 CR Alloy Steel Pipe
| Grade | 1 CR |
| Material | Alloy Steel with Chromium (CR) |
| Standard | ASTM A691 |
| Manufacturing Method | Electric Fusion Welding (EFW) |
| Outer Diameter (O.D.) | 18" - 56" (457.2 - 1422.2 mm) |
| Wall Thickness (W.T.) | 0.312" - 2" (7.92 - 50.8 mm) |
| Length | 5 - 12.3 meters |
Why choose GNEE ASTM A691 alloy tube
GNEE has an annual output of 1 million tons and is the largest domestic manufacturer of ERW pipes, alloy pipes, and spiral welded pipes. It has 12 black straight seam welded pipe production lines, 3 spiral welded pipe production lines, and 1 JCOE LSAW steel pipe production line. Among them, A691 Grade 1 CR Alloy steel pipe has an existing inventory of 80,000 tons and is supplied in various forms and specifications.
If you are looking for seamless pipe, please contact us in time to get a quote!sales@gneetube.com
Types of GNEE ASTM A691 Alloy Steel Gr.1 CR Pipes
| ASTM A691 Gr.1 CR Alloy Seamless Pipes | Alloy Steel Gr.1 CR Welded Pipes |
| ASTM A691 Gr.1 CR ERW Pipe | Alloy ASME SA691 Gr.1 CR EFW Pipe |
| Alloy A691 ERW Pipe | Alloy Gr.1 CR High Pressure Pipe |
| ASME SA691 Gr.1 CR Seamless Pipe | ASTM A691 Gr.1 CR SAW Pipe |
| ASTM A691 Gr.1 CR Welded Pipe | ASME SA691 Gr.1 CR LSAW Pipes |
Factory environment of Alloy A691 ERW Pipe
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