ASTM A671 EFW Welded Carbon Steel Pipe
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ASTM A671 EFW Welded Carbon Steel Pipe

ASTM A671 is a standard specification for electric-fusion-welded (EFW) steel pipe for atmospheric and lower temperatures.
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Product Introduction

ASTM A671 EFW welded carbon steel pipe is a carbon structural steel pipe manufactured using the electrofusion welding process. This kind of steel pipe is mainly used in high-temperature and high-pressure transportation systems, such as boilers, petrochemicals, thermal pipe networks and other fields.

ASTM A671 electrofusion welded straight seam steel pipe is a steel pipe for normal and low temperature use. There are multiple brands and grades below. The grades are: CA55, CB60, CB65, CB70, CC60, CC65, CC70, CD70, CD80, CFA65, CFB70 , CFE70, CFD65, CH100, CJA115, CJB115, CJE115, CJF115, CJH115, CJP115, the levels are CL10, CL11, CL12, CL13, CL20, CL21, CL22, CL23, CL30, CL31, CL32, CL33, CL40 respectively.
O.D:18"-56"(457.2-1422mm)
W.T:0.312"-2"(7.92-50.8mm)
Unit Length:5-12.3 meter
Application:It is mainly used for oil and gas transportation pipelines.

Packaging:Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Transportation:By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load)

Contact us for price: sales@gneetube.com
 

ASTM A671 Carbon Steel EFW Pipe

ASTM A671 CA55 EFW Pipes

Chemical Composition of A671 Pipes

Steel grade

C max

Si

Mn

P

S

A45

0.17

/

0.98

0.035

0.035

A50

0.22

/

CA55/A55

0.28

/

B55

0.20

0.13~0.45

CB60/B60

0.24

CB65/B65

0.28

CB70/C70

0.31

1.30

C55

0.18

0.55-0.98

CC60/C60

0.21

CC65/C65

0.24

0.79-1.30

CC70/C70

0.27

Mechanical Properties of A671 Pipe

Steel Grade

Yield point (N/mm2) max

Tensile Stregth (N/mm2)max

Elongation (%)

A45

165

310~450

30

A50

185

345~485

28

A50

185

345~485

28

CA55/A55

205

380~515

27

B55

205

380~515

27

CB60/B60

220

415~550

25

CB65/B65

240

450~585

23

CB70/B70

260

485~620

21

C55

205

380~515

27

CC60/C60

220

415~550

25

CC65/C65

240

450~585

23

CC70/C70

260

485~620

21

 

Gnee product certificate

Gnee product certificate
Gnee Company Team

Gnee Company Team
Gnee Group participated in the NECC exhibition​

Gnee Group participated in the NECC exhibition​
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Gnee Customer visit
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Gnee Factory environment ​​
Gnee Packaging and shipping

Gnee Packaging and shipping

FAQ

1.Q.How do we trust your company?
A. We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.
2. Q: What services do you provide?
A: Customized service for each customer, please feel free to contact us!
3.Q. How can I learn about your quality assurance?
A.Visiting our factory is the best way to understand each other.

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