A691 EFW Pipe
A691 EFW Pipe

A691 EFW Pipe

Name: China Customized A691 EFW Pipe Manufacturers Suppliers - Cheap A691 EFW Pipe for Sale - GNEE Pipe
Brand: GNEE
SKU: 227122491

Type: A691 EFW Pipe
Outer Diameter: 457-1422mm
Wall Thickness: 2-60mm
Length:5m-14m,5.8m,6m,10m-12m,12m or as customer's actual request

Send Inquiry

Chat Now

Product Introduction

A691 EFW Carbon and Alloy Steel Pipe Description

ASTM A691 steel pipe is a type of high-temperature, high-pressure electric fusion welded carbon and alloy steel pipe.

GNEE Group supplies A691 pipes with an outside diameter of 16 inches / 400 millimeters and a maximum wall thickness of 3 inches / 75 millimeters in accordance with ASTM specifications. We can also provide other sizes of A691 high-temperature, high-pressure pipes according to ASTM specifications. Please feel free to contact us if you have any requirements.

A691 Alloy EFW Pipe Specification

Grade	Alloy Steel A691 GRADE 1 CR, GRADE 1/2 CR, GRADE 1 1/4 CR, GRADE 2 1/4 CR, GRADE 3 CR, GRADE 5 CR, GRADE 9 CR, GRADE 91, CM 65, CM 70, CM 75
Thickness	3-12mm
End	Plain End, Beveled End, Treaded
Type	ERW / Welded / Fabricated / LSAW Pipes
ASTM A691 Grades	ASTM A691 Gr 1, ASTM A691 Gr.2, ASTM A691 9cr, ASTM A691 5cr, ASTM A691m, ASTM A691 Gr.5cr Cl22, ASTM A691 Cm70, ASTM A691 Class 22, ASTM A691 Class 42, ASTM A691 Grade 2.1/4cr, ASTM A691 11/4cr Cl22
Clas Designation	Class 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 70, 71, 72, 73
Schedules	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Craft	Cold rolled and Cold drawn
Size	1/2" NB to 36" NB
Length	Standard Double & In Cut length also.
available in Form of	Round, Square, Rectangular, Hydraulic Etc.
Specialized in	Large Diameter ASTM A691 Pipe
Additional Testing	NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

GNEE Supply Other ASTM A691 EFW Steel Pipe

ASTM A691 Pipe Types	Out diameter	Wall thickness	Length
Alloy Gr.1 CR High Pressure Boiler Pipe	16" NB - 100" NB	As per requirement	Custom
A691 Alloy Steel EFW Pipe (Custom Sizes)	1/2" NB - 60" NB	SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160	Custom
ASTM A691 ERW Pipe (Custom Sizes)	1/2" NB - 24" NB	As per requirement	Custom
ASTM A691 Welded Pipe (in Stock + Custom Sizes)	1/2" NB - 24" NB	As per requirement	Custom

A691 Alloy Steel Pipe for Sale

A691 lsaw welded pipe a691 lsaw steel pipe

A691 Steel Pipe Chemical Composition

%	1CR	1-1/4CR	2-1/4 CR	5 CR	9 CR	91
C	0.05-0.17	0.05-0.17	0.05-0.15	0.15	0.15	0.08-0.12
Mn	0.40-0.65	0.40-0.65	0.30-0.60	0.30-0.60	0.30-0.60	0.30-0.60
P	0.025	0.025	0.025	0.025	0.025	0.020
S	0.025	0.025	0.025	0.025	0.025	0.010
Si	0.15-0.40	0.50-0.80	0.50	0.50	1.00	0.20-0.50
Cr	0.80-1.15	1.00-1.50	2.00-2.50	4.00-6.00	8.00-10.00	8.00-9.50
Mo	0.45-0.60	0.45-0.65	0.90-1.10	0.45-0.65	0.90-1.10	0.85-1.05
V	–	–	–	–	0.04	0.18-0.25

A691 Welded Steel Pipe Mechanical Property

Grade	Tensile (MPa)	Yield (MPa)	Elong. (50mm)	Reduc'n of Area*
1CR	380 – 550	230 min	22% min	–
1-1/4CR	415 – 585	240 min	22% min	–
2-1/4CR, 5CR, 9CR	415 – 585	205 min	18% min	40% min
91	415 – 585	205 min	18% min	40% min

Grade	Tensile (MPa)	Yield (MPa)	Elong. (50 mm)	Reduc'n of Area*
2	485 – 620	310 min	22% min	–
1-1/4CR	515 – 690	310 min	22% min	–
1CR	450 – 585	275 min	22% min	–
2-1/4CR, 5CR, 9CR	515 – 690	310 min	18% min	40% min
91	585 – 760	415 min	18% min	–

A691 Pipe Tolerance

Outside diameter	+/- 0.5%
Out of roundness	The difference between major and minor outside diameters 1%.
Alignment	Using a 10-ft 3m straightedge placed so that both ends are in contact with the pipe, 1/8in. 3mm.
Thickness	Minimum wall thickness at any point in the pipe shall not be more than 0.01 in 0.3mm under the specified nominal thickness.
Lengths	Lengths with unmachined ends shall be within -0, +1/2 inch, 0 +13mm of that specified. Lengths with machined ends shall be as agreed between manufacturer and purchaser.