A672 Carbon Steel EFW pipe
Gnee specializes in the production of A672 carbon steel EFW pipes with 15+ years experience. We provide high quality A672 steel pipes in various grades, including B60, B65, B70, C60, C65, C70 which cover small diameters to large. Read more to get details.
Gnee have a wide range sizes, such as 5 inch /6 inch /2 inch and more for you to choose.

With excellent mechanical properties of A672 carbon steel EFW pipe, it is widely used in the following areas:
- Constructions
- Food Industry
- Pharmaceutical Industry
- Petrochemical Industry
- Automotive Industry

A671 carbon steel EFW pipe grades: ASTM A672 B60, B65, B70, C60, C65, C70, and more grades waiting for you to choose.

Specification | Steel grade | Chemical composition | Remarks | |||||
C | Si | Mn | P | S | Ti | |||
Pipes for pressure service ASTM A671, A672 | -/A45 | -/0.17 | – | 0.98 | 0.035 | 0.035 | – | A671/A672 |
-/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 |
Steel Grade | BASE METAL MECHANICAL COMPOSITION | Welding point tensile strength (N/mm2) | ||
---|---|---|---|---|
Yield point (N/mm2) | Tensile Stregth (N/mm2) | Elongation (%) | ||
-/A45 | -/165 | -/310~450 | -/30 | -/310~450 |
-/A50 | -/185 | -/345~485 | -/28 | -/345~485 |
CA55/A55 | 205 | 380~515 | 27 | 380~515 |
B55 | -/205 | -/380~515 | -/27 | -/380~515 |
CB60/B60 | 220 | 415~550 | 25 | 415~550 |
CB65/B65 | 240 | 450~585 | 23 | 450~585 |
CB70/C70 | 260 | 485~620 | 21 | 485~620 |
C55 | -/205 | -/380~515 | -/27 | -/380~515 |
CC60/C60 | 220 | 415~550 | 25 | 415~550 |
CC65/C65 | 240 | 450~585 | 23 | 450~585 |
CC70/C70 | 260 | 485~620 | 21 | 485~620 |
ASTM Grade | Material | JIS/JPI |
---|---|---|
A55 | A285 Gr C | JPI-SB42 |
B55 | A515 Gr 55 | – |
B60 | A515 Gr 60 | JPI-SB42 |
B65 | A515 Gr 65 | JPI-SB46 |
B70 | A515 Gr 70 | JPI-SB49 |
C55 | A516 Gr 55 | – |
C60 | A516 Gr 60 | JPI-SLA24B (1) |
C65 | A516 Gr 65 | JPI-SLA33B (1) |
C70 | A516 Gr 70 | – |
D70 | A537 CL 1 | – |
E55 | A442 Gr 55 | – |
E60 | A442 Gr 60 | JPI-SPV24 |
L65 | A204 Gr A | JPI-SB46M |
L70 | A204 Gr B | JPI-SB49M (2) |
L75 | A204 Gr C | – |
N75 | A299 | – |

In addition, our ASTM A672 carbon steel EFW pipe has been successfully exported to more than 60 countries such as Vietnam, Malaysia, Indonesia, Pakistan, UAE, and South Korea, etc. Many regular customers visit our company and factory and make multiple orders.

Gnee can provide the following measurement services for ASTM A672 carbon steel EFW pipes:
1. Dimensional measurement: Measure the dimensional parameters such as length, width, and thickness by measuring instruments to ensure the pipe is qualified and meets the design requirements.
2. Surface measurement: Measure parameters such as flatness, unevenness, and surface roughness of the A672 carbon steel EFW pipe surface to help ensure that the quality and surface state of the pipe meet the requirements.
3. Thickness measurement: Use a thickness measuring instrument to accurately measure the thickness of the ASTM A672 carbon steel EFW pipe to ensure that it meets the design requirements.
4. Material measurement: Use material analysis instruments to measure the chemical composition and mechanical properties of the product to ensure that the quality and performance meet the requirements.
5. Bending and Deformation Measurements:The degree of bending and deformation of the steel pipe is measured and monitored by using tools such as bending measuring instruments and displacement sensors to ensure that it is within the allowable range.
Gnee can customize the size and shape of steel pipes for your project according to specific project needs. The custom design of the ASTM A672 carbon steel EFW pipe is carried out by a professional engineer and design team. Based on the requirements and constraints of the project, they will use calculation and simulation tools, combined with experience and technical knowledge, to optimize the steel pipe design to meet the specific needs of your engineering.
● According to the strength requirements of structural design, adjust the thickness, width, and length of ASTM A672 carbon steel EFW pipes.
● The shape of the steel pipe can be designed according to the characteristics of the project.
● If you consider the convenience of installation and maintenance, we can also add openings for easy operation in the design for areas that require frequent maintenance.
Purchasing Gnee ASTM A672 carbon steel EFW pipe can provide the following deep processing services. We can customize according to the specific needs of customers to meet the requirements.
Cutting service: ASTM A672 carbon steel EFW pipe can be custom cut to obtain the desired shape and size according to the needs of customers. For example, flame cutting, plasma cutting, laser cutting, etc., can cut steel pipes into required blocks, special-shaped parts.
Bending and forming:A672 carbon steel EFW pipes are bent and formed by stress application and appropriate processes to obtain the desired shape.
Welding service: ASTM A672 carbon steel EFW pipes can be subjected to various types of welding services, including manual arc welding, gas-shielded welding, laser welding, etc.
Turning and machining of holes: Turning and machining of holes in ASTM A672 carbon steel EFW pipes by using machining equipment. These processes produce smooth surfaces, precise holes and threads to meet specific assembly requirements.
Surface treatment: In order to improve the corrosion resistance and aesthetics of the steel pipe, surface treatment can be carried out. This includes methods such as spraying, hot-dip galvanizing, electroplating, etc. to add a protective layer and provide corrosion resistance.
Gnee ASTM A672 carbon steel EFW pipes can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that pipes comply with relevant standards and regulations.
Material chemical composition analysis: Through chemical composition analysis, determine whether the composition of the steel pipe meets the standard requirements.
Mechanical performance test: Mechanical performance test includes tensile test, impact test, bending test, etc., which determine whether the mechanical properties such as strength, toughness and ductility of products meet the specified requirements.
Metallographic testing: Through metallographic testing, check the structure, grain size, non-metallic inclusions, etc. of ASTM A672 carbon steel EFW pipes to evaluate their quality and performance.
Corrosion performance test: Through the corrosion performance test, evaluate the corrosion resistance of ASTM A672 carbon steel EFW pipes, including salt spray corrosion resistance, chemical corrosion resistance, etc.
Hardness test: Hardness test is used to measure the hardness of ASTM A672 carbon steel EFW pipe, and its strength and wear resistance can be evaluated according to the hardness value.
Ultrasonic flaw detection: Ultrasonic flaw detection is used to detect internal defects of pipes, such as cracks, pores, inclusions, etc.
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