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 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.
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 |
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.
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 | - |
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 |
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 |
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