Tricon Steel & Alloys is India's largest manufacturer and supplier of carbon Steel EFW ASTM A672 C70 Pipe. These pipes, renowned for their robustness and reliability, excel in applications from power generation to oil and gas refining. With exceptional durability and performance, they are the go-to choice for critical operations where strength and resilience are paramount.

ASTM A672 C70 Carbon Steel EFW Pipe is a specification established by the American Society for Testing and Materials (ASTM) for electric-fusion-welded (EFW) carbon steel pipes. This pipe is designed specifically for high-pressure applications at moderate temperatures. The "C70" designation refers to the lowest strength rating of carbon steel, which is 70,000 psi, providing strength and reliability in demanding applications.

These pipelines have various applications in various industries, such as oil, gas, petrochemical, power generation and water treatment. They are particularly suitable for piping under high pressure and temperature conditions. The electro-fusion welding process ensures a stable solid weld, increasing pipe integrity and performance.

The key feature of ASTM A672 C70 pipes is their resistance to corrosion and corrosion in harsh environments; the carbon steel construction makes them suitable for use in corrosive environments and harsh working conditions. These pipes come in various sizes and wall thicknesses to fit a wide range of needs.

ASTM A672 C70

ASTM A672 C70 Several tests are performed to ensure the pipe is quality and conforms to specified standards. These tests usually include chemical analysis, tensile testing, impact testing, hardness testing, ultrasonic testing, radiographic testing, etc. These Strict testing methods improve the mechanical properties and structural integrity of the pipe, ensuring rigorous performance requirements of technical applications.

ASTM A672 C70 Pipe Specifications

Standards ASTM A672 / A672 C55 LSAW STEEL PIPES
Specification ASTM A672 /ASME SA672
Type EFW (ELECTRIC FUSION WELDED PIPES)
Class Designation CLASS 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42
Outer Diameter Size 16" NB To 100" NB (Nominal Bore Size)
Wall Thickness Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness
Length 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size.
Ends Plain Ends / Beveled Ends / Coupling
Delivery Conditions As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T
Coating Epoxy Coating / Colour Paint Coating / 3LPE Coating.
Other Testing NACE MR0175, NACE TM0177, NACE TM0284, CHARPY V-NOTCH TEST, RADIOGRAPHIC EXAMINATION,
XRAY, ULTRASONIC EXAMINATION, LIQUID PENETRANT, MAGNETIC PARTICLE, HIC TEST, SSC TEST, SWC, H2 SERVICE, IBR, PWHT etc.
Dimension All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.
Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment
Packaging Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Shipment & Transportation By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) /
LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air
- Freighter Civil Passenger and Cargo Planes
Material Test Certificate Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate
From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV,
DNV, LLOYDS, ABS ETC

ASTM A672 C70 Pipe Manufacturing Process

The Rolling and Welding Stage

To begin our process, we first need to go through the rolling and welding stage. The Carbon steel is placed through a checking process and cut at the edges in this stage.

Cleaning and Warming Stage

The rolled Carbon steel pipes thus manufactured are cut to the required lengths depending upon the industrial demand.

Cold-Drawing Stage

Sometimes, the required size isn’t obtained when the steel is brought through the mill directly. When using the cold-drawing process, the desired size is achieved when the pipes and tubing are coated with oxalic and soap solution and dragged over die plugs—the oxalic and soap solution help reduce friction when going through the cold cycle.

The Finishing Process

The final process is the finisher. Once the process of manufacturing ASTM A672 C70 and tubing is completed, you’ll now have to take them to a jet printer.

Pipe Manufacturing Process

ASTM A672 C70 Pipe Equivalent Material

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 -

Carbor Steel ASTM A672 C70 Chemical Composition

Steel grade Chemical composition
C Si Mn P S Ti
-/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

ASTM A672 C70 Mechanical Properties

Steel Grade BASE METAL MECHANICAL COMPOSITION Welding point tensile strength (N/mm2)
Yield point (N/mm2) Tensile Stregth (N/mm2) Test Pieces 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 A672 C70 Pipe Technical Information

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Types Of Carbon Steel ASTM A672 C70 Pipe

Seamless Pipe

ASTM A672 C70 Seamless Pipe

Welded Pipe

ASTM A672 C70 Welded Pipe

ERW Pipe

ASTM A672 C70 ERW Pipe

EFW Pipe

ASTM A672 C70 EFW Pipe

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What Industries Use ASTM A672 C70 Pipe ?

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