ASTM A691 Grade 91 Alloy Steel EFW Pipes

ASTM A691 Grade 91 steel pipes are alloy steel pipes welded with filler material onto carbon steel pipes. A691 GR91 welded pipes are made from pressure vessel quality plates. As a specialist manufacturer of A691 GR91 steel pipes, GNEE Group offers ASTM A691 Grade 91 alloy steel pipes with high strength, toughness, hardness, quenching capability, wear resistance, corrosion resistance, and thermal hardness. Our A691 GR91 welded pipes are exported to over 150 countries, including South Korea, Indonesia, and the Netherlands. Feel free to contact us if you have any requirements.

A691 GR91 Welded Steel Tubes Specification

Specification	ASTM A691 / ASME SA691
Dimension	All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.
Types	EFW (Electric Fusion Welded Pipes)/ LSAW
Outer Diameter Size	16" NB To 100" NB (Nominal Bore Size)
Wall Thickness	Schedule 20 To Schedule XXS (Heavier On Request) Up to 75 mm Thickness
Length	5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size.
Pipe Ends	Plain Ends / Beveled Ends / threaded Ends/ Coupling
Delivery Conditions	As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T
Packaging	Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
ASTM A691 9CR EFW Pipes Class	Class 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42, 43, 50, 51, 52, 53
Testing	NACE TM0284, SWC, H2 Service, NACE MR0175, IBR, Radiographic Examination, XRAY, PWHT Etc., Ultrasonic EXAMINATION, Liquid Penetrant, NACE TM0177, SSC Test, Magnetic Particle, HIC Test, Charpy V-Notch Test

ASTM A691 /ASME SA691 Grade.91 Alloy Steel Welded Pipes Chemical Composition

Grade	C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Mo, %	V,%
GR91	0.08-0.12	0.30-0.60	0.020	0.010	0.20-0.50	8.00-9.50	0.85-1.05	0.18-0.25

A691 Grade91 Welded Tubing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A691 Grade91 welding round pipe packaging and shipping

Waterproof Paper wrapped, Steel Strips bundled, two tags on each bundle

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