ASTM A672 CA60 EFW pipe is a designation buyers commonly use when referring to 60 ksi electric fusion welded pipe under ASTM A672. Amardeep Steel supplies this strength level in Grade B60, manufactured from A515 Grade 60 plate, and Grade C60, made from A516 Grade 60 plate. For the relevant grade details, see our ASTM A672 CB60 pipes and ASTM A672 C60, C65 and C70 pipes. You can also browse the complete ASTM A672 EFW pipe range for other strength levels. Every order includes plate and weld certificates, radiography reports for the specified class and full heat traceability.
What Is ASTM A672 CA60 EFW Pipe?
ASTM A672 covers electric fusion welded steel pipe, made from pressure vessel plate with a filler metal weld, for high pressure service at moderate temperatures. The grade name tells you the plate: the letter is the plate family and the number is its minimum tensile strength in ksi.
What "CA60" Means in an A672 Order
A672 grades made from A285 plate run A45, A50 and A55, because A285 Grade C at 55 ksi is the strongest A285 plate. There is no A285 plate at 60 ksi, so a 60 ksi order is met with B60 or C60. The "C" prefix comes from ASTM A671, where the same plates are called CB60 and CC60. Tell us which plate your drawing names, or we will advise.
ASTM A672 CA60 EFW Pipe Specifications
Parameter | Details |
|---|---|
Specification | ASTM A672 / ASME SA672 |
Grade | Supplied as B60 or C60 |
Plate Material | ASTM A515 Grade 60 (B60) or ASTM A516 Grade 60 (C60) |
Manufacturing Process | Electric fusion welded (EFW) with filler metal, longitudinal seam |
Size Range | 16 inch (406 mm) OD and larger as standard, smaller sizes on request |
Wall Thickness | Up to 75 mm (3 inch) |
Common Classes | Class 12, 22 and 32 |
Length | Single random, double random and cut lengths |
Ends | Bevelled end or plain end |
Test Certificate | EN 10204 3.1, with 3.2 available on request |
ASTM A672 CA60 EFW Pipe Chemical Composition
Element (%) | B60 | C60 |
|---|---|---|
Carbon (C) | 0.24 max | 0.21 max |
Manganese (Mn) | 0.90 max | 0.60 to 0.90 |
Phosphorus (P) | 0.025 max | 0.025 max |
Sulfur (S) | 0.025 max | 0.025 max |
Silicon (Si) | 0.15 to 0.40 | 0.15 to 0.40 |
Values are for plate up to 12.5 mm (A516) or 25 mm (A515) thick; thicker plate allows higher carbon. The weld deposit is analysed for every lot.
ASTM A672 CA60 EFW Pipe Mechanical Properties
Property | B60 | C60 |
|---|---|---|
Plate | A515 Grade 60 | A516 Grade 60 |
Tensile Strength | 415 to 550 MPa (60 to 80 ksi) | 415 to 550 MPa (60 to 80 ksi) |
Yield Strength, min | 220 MPa (32 ksi) | 220 MPa (32 ksi) |
Elongation in 50 mm, min | 25% | 25% |
B60 or C60: Which One to Order
Both have the same strength. B60 uses coarse grain A515 plate, intended for intermediate and higher temperatures. C60 uses fine grain A516 plate, which gives better notch toughness at moderate and lower temperatures and is the more common choice today.
A672 Pipe Classes Explained
Class (first digit) | Heat Treatment on Pipe | Class (second digit) | Weld Radiography and Pressure Test |
|---|---|---|---|
1x | None | x0 | Neither |
2x | Stress relieved | x1 | Radiography only |
3x | Normalized | x2 | Radiography and pressure test |
4x | Normalized and tempered | x3 | Pressure test only |
5x | Quenched and tempered |
Classes ending in 2 include full radiography and a hydrostatic test, which lets designers use a weld joint factor of 1.0 under ASME B31.3.
ASTM A672 Carbon Steel Grades Compared
Property | A55 | B60 | B65 | C60 | C65 |
|---|---|---|---|---|---|
Plate | A285 Gr C | A515 Gr 60 | A515 Gr 65 | A516 Gr 60 | A516 Gr 65 |
Grain Practice | Plain carbon | Coarse grain | Coarse grain | Fine grain | Fine grain |
Tensile Strength, MPa | 380 to 515 | 415 to 550 | 450 to 585 | 415 to 550 | 450 to 585 |
Yield Strength, min, MPa | 205 | 220 | 240 | 220 | 240 |
See our ASTM A672 A55 pipe for the lowest strength grade and our ASTM A672 C60, C65 and C70 pipes for fine grain plate.
Heat Treatment of ASTM A672 CA60 EFW Pipe
- Post weld heat treatment: 590 to 680 degrees Celsius (1100 to 1250 degrees Fahrenheit) for A515 and 590 to 650 degrees Celsius for A516 plate
- Normalizing: 925 degrees Celsius (1700 degrees Fahrenheit) maximum
Applications of ASTM A672 CA60 EFW Pipe
- Large diameter process and utility lines in refineries and power plants
- Water transmission and cooling water mains
- Steam and condensate headers at moderate temperature
- Fabricated spools and penstock sections
Testing and Documentation
Every order of A672 CA60 pipe goes through the checks below at our testing facility or approved third party labs.
- Chemical analysis of plate and deposited weld metal
- Transverse tension test
- Transverse guided weld bend test
- Radiography of the weld seam (Class x1 and x2)
- Hydrostatic test (Class x2 and x3)
- Visual and dimensional inspection
Mill test certificates are issued to EN 10204 3.1, with 3.2 available on request. You can view our approvals on the certificates page.
Packing and Marking
Each length is marked with the specification, grade, class, size, heat number and manufacturer name. Bevelled ends are protected with caps or bevel protectors, and lengths are shipped loose with dunnage or in lashed bundles. Read more about our packing and despatch process.
Request a Quote for ASTM A672 CA60 EFW Pipe
Send us the OD, wall thickness, plate grade, class, length and quantity, and our team will reply with price and delivery. Use the enquiry form or reach us through the contact page.
Frequently Asked Questions
What is ASTM A672 CA60 pipe?
ASTM A672 CA60 is the name commonly used for 60 ksi electric fusion welded pipe under ASTM A672. The specification supplies it as Grade B60 (A515 Grade 60 plate) or Grade C60 (A516 Grade 60 plate), both with a tensile strength of 415 to 550 MPa.
Why is CA60 supplied as B60 or C60?
A672 grades from A285 plate stop at A55, because A285 Grade C is 55 ksi. The 60 ksi level in A672 is made from A515 or A516 plate, which gives Grades B60 and C60.
What is the difference between A672 B60 and C60?
Both have a 415 to 550 MPa tensile range and 220 MPa minimum yield. B60 uses coarse grain A515 plate for higher temperatures; C60 uses fine grain A516 plate with better toughness at lower temperatures.
What classes are available for A672 CA60 pipe?
Common classes are 12, 22 and 32. Classes ending in 2 include full weld radiography and a hydrostatic test.
