Cr - Mo alloy steel pipes ASTM A691 1Cr 3Cr 5Cr 9Cr Electric Fusion Weldding pipe

Cr - Mo alloy steel pipes ASTM A691 1Cr 3Cr 5Cr 9Cr Electric Fusion Weldding pipe

A691 specification covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties. The pipes are classified according to steel grades and are designated in classes according to the type of heat treatment performed in the pipe manufacture, whether the weld is radiographically examined, and whether the pipe has been pressure tested. The steel welds shall be made either manually or automatically by an electric process involving the deposition of filler metal. The welded joints shall have positive reinforcement at the center of each side of the weld. The contour of this reinforcement shall be smooth, and the deposited metal shall be fused smoothly and uniformly into the plate surface. The joints shall undergo tension, bend and pressure tests. Unacceptable surface imperfections shall be removed by grinding or machining. The depression after grinding or machining shall be blended uniformly into the surrounding surface. Repair of weld and base metal defects shall be done by welding.

This specification2 covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired.

The specification nominally covers pipe 16 in. [400 mm] in outside diameter and larger with wall thicknesses up to 3 in. [75 mm] inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.

Specification & Range

Plate Specification to Manufacturer A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW LSAW Pipes

Plate Material

A Class I is Other Than Killed with a specified minimum tensile strength of 450 MPa or lower.
Class II is Other Than Killed with a specified minimum tensile strength of 450 to 520 MPa incl.
Class III is Killed with a specified minimum tensile strength of 450 MPa or lower.
Class IV is Killed with a specified minimum tensile strength of 450 to 520 MPa incl.
Class V is Killed with a specified minimum tensile strength of over 520 MPa to but not including 655 MPa.
Class VI is Killed with a specified minimum tensile strength of 655 MPa or over.
B Full size (10 by 10 mm) specimens.
C Testing temperature as specified in the purchase order, but no higher than 0°C

A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW LSAW Pipes Class

Heat Treatment of A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipes

*A Requires quenching and tempering.
*B 9CR steel is an air-hardenable steel, at times retaining austenite down to near atmospheric temperature. Good practice is to allow the steel to cool to 150° For lower before subjecting the steel to a tempering treatment or post-weld heat treatment.

Chemical Composition of A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipes

(cast analysis, % by mass, maximum permitted unless indicated otherwise)

*Grade 91 also includes restrictions on Nickel 0.40 max, Columbium 0.06-0.10, Nitrogen 0.030-0.070, Aluminium 0.02 max, titanium 0.01 max, Zirconium 0.01 max.

Tensile Requirements of A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipes

Class 1 Plates

* Measured on a flat specimen

Class 2 Plates

* Measured on a flat specimen

As with all ASME and ASTM pressure vessel steels, Chrome Moly to SA387 and A387 is produced in conformity to SA20 / A20 which outlines the testing and retesting methods and procedures, permissable variations in dimensions and weight, quality and repair of defects, marking, loading, and ordering information.

In addition to the basic requirements of SA20 / A20 certain supplementary requirements are available when additional control, testing, or examination is required to meet end use requirements. These might include product analysis (S2), charpy V-notch impact test (S5), or ultrasonic testing (S12): a variety of supplementary requirements are available.

ASTM A691 Grade 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe
ASTM A691 Alloy Steel EFW Electric Fusion Welded Pipes in Grade 1CR Grade-12, 1.1/4CR Grade-11, 2.1/4CR Grade-22, 3CR Grade-21, 5CR Grade-5, 9CR Grade-9, Grade-91

• ASTM A691 GRADE 1 1/4 CR Alloy Steel Pipes – contact Prosaic Steel for best price
• ASTM A691 Carbon Steel & Alloy Steel Electric-Fusion Welded Pipes
• ASTM A691 Grade CM65, ASTM A691 Grade CM-65
• ASTM A691 Grade CM70, ASTM A691 Grade CM-70
• ASTM A691 Grade CM75, ASTM A691 Grade CM-75
• ASTM A691 Grade CMSH70, ASTM A691 Grade CMSH-70
• ASTM A691 Grade CMS75, ASTM A691 Grade CMS-75
• ASTM A691 Grade 1/2CR, ASTM A691 Grade-1/2 CR
• ASTM A691 Grade 1CR, ASTM A691 Grade-1 CR
• ASTM A691 Grade 12, ASTM A691 Grade-12
• ASTM A691 Grade 1.1/4CR, ASTM A691 Grade-1.1/4 CR
• ASTM A691 Grade 11, ASTM A691 Grade-11
• ASTM A691 Grade 2.1/4CR, ASTM A691 Grade-2.1/4 CR
• ASTM A691 Grade 22, ASTM A691 Grade-22
• ASTM A691 Grade 3CR, ASTM A691 Grade-3 CR
• ASTM A691 Grade 21, ASTM A691 Grade-21
• ASTM A691 Grade 5CR, ASTM A691 Grade-5 CR
• ASTM A691 Grade 5, ASTM A691 Grade-5
• ASTM A691 Grade 9CR, ASTM A691 Grade-9 CR
• ASTM A691 Grade 9, ASTM A691 Grade-9
• ASTM A691 Grade 91, ASTM A691 Grade-91

A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe Packing

A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe is sleeved into plastic bag individually, pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation

A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.

Delivery: Within 10-25 days or asap if we have enough stock

Types of Packaging:

• - Bundles (hexagonal)
• - Wooden Boxes
• - Crates (steel/wooden)
• - Special crates for U-Bend tubes with each radius separated
• - Packaging for A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe as per customer's requirements

Special Features:

• - Each bundle covered with plastic for protection against extreme weather.
• - End of A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe protected by plastic caps.
• - Bundles strapped with plastic strips.
• - Each radius of U-Bend tube separated by a separator.
• - Packaging list (laminated) placed with box/crate.

A691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe Steel EFW Pipe Sizes Available in Stock with Price

• 16" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 18" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 20" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 22" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 24" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 26" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 28" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 30" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 32" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 34" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 36" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 40" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 42" NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 44" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 46" NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 48" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 52" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 54" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 56" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 60" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 60" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 34" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW
• 36" NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A691 Pipe, A691 1-1/4CR Pipe, A691 2-1/4CR, A691 5CR Pipe, A691 9CR Pipe, A691 91 Alloy Steel EFW Pipes in LSAW / EFW / DSAW / SSAW

We export A691 Grade 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe to Saudi Arabia, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, europe, Africa, Asia, North America, South America, Middle East, Far East.etc

YUHONG GROUP is a well known worldwide exporter of A691 Grade 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe, Prosaic Steel and Alloys is committed to provide each and every customer with the highest standard of customer service. We deals inA691 Grade 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe in India & Overseas, offering a wide range of A691 Grade 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91 Alloy Steel EFW Pipe