As a professional welded pipe exporter, GNEE has more than 16 years of experience in steel pipe export and has 12 EFW steel pipe production lines with an annual output of 50,000 tons.
SA A691 Grade 91 steel pipe contains 9% chromium and 1% molybdenum and is made from A387/A387M Grade 91 steel plate.
ASTM A691 Gr. 91CR alloy steel pipe has an operating temperature range of 1040 - 1112ºF (560 - 600ºC) and a high pressure range of 4000 psi (270 bar).
A691 91CR welded pipes manufactured by GNEE offer wider durometer, higher composite block and expansion strength. These welded pipes are available in various sizes, from 1/8" NB to 36" NB, 1/4" OD to 36" OD sizes. Widely used in oil and gas industry, chemical industry and power industry.
High Pressure Steel EFW Gr 91Cr Pipe
Chemical Composition of ASTM A691 91CR Welded Pipes
| C | 0.08-0.12 |
| Mn | 0.30-0.60 |
| P | 0.020 |
| S | 0.010 |
| Si | 0.20-0.50 |
| Cr | 8.00-9.50 |
| Mo | 0.85-1.05 |
| V | 0.18-0.25 |
Tensile Requirements of A691 91CR Alloy Steel EFW Pipes
| Grade | Tensile (MPa) | Yield (MPa) | Elong. (50mm) | Reduc'n of Area* |
|---|---|---|---|---|
| 91CR | 415 - 585 | 205 min | 18% min | 40% min |
Outer Diameter:457-1422mm
Wall Thickness:2-60mm
Length:Single random length/Double random length
Additional Services Provided by GNEE
End Bevelling
Cutting to requested Lengths
Grinding or Shot-Blasting of External Tube Surfaces
Outside surface painting using environment-friendly paints
Ultrasonic Testing
Impact Resistance Testing at +20°C to-60°C
Hydrostatic Testing at Pressure of up to 130 MPa depending on customer requirements
Advantages of Choosing GNEE A691 91Cr Pipes
GNEE is exported to more than 80 regions including Southeast Asia, the Middle East, South America, Africa, North America, and Europe.
GNEE can provide seamless/ ERW/ welded/ fabricated etc. sizes. Shapes are round, square, rectangular, hydraulic etc.
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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