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A672 Pipe
A672 Pipe
ASTM A672 pipe is a welded carbon steel pressure pipe produced from pressure vessel quality plates using electric fusion welding. It is well-suited for moderate temperature, high-pressure applications in power plants, compressor stations, and underground pipeline systems. We provide ASTM A672 EFW pipes in Grades B60, C60, C65, D70, and Classes 12 through 42, with sizes ranging from 16” to 48” OD. Our services include third-party inspection and custom lengths. Known for reliability and adherence to ASME codes, our A672 welded pipes are designed for long-term performance in critical environments.
Product Specifications
| Chemical Requirements for ASTM A672 Material | ||||||
| Grade | C (%) max | Mn (%) | P (%) max | S (%) max | Si (%) | Notes |
| A45 | 0.19 | 0.30–0.60 | 0.035 | 0.035 | – | Low carbon steel |
| A50 | 0.23 | 0.30–0.60 | 0.035 | 0.035 | – | Medium low carbon steel |
| A55 / B55 / C55 | 0.28 | 0.29–1.06 | 0.035 | 0.035 | – | General pressure service |
| B60 / C60 | 0.29–0.31 | 0.29–1.06 | 0.035 | 0.035 | – | Medium carbon |
| B65 / C65 | 0.30–0.33 | 0.29–1.06 | 0.035 | 0.035 | – | Medium-high strength |
| B70 / C70 | 0.31–0.35 | 0.29–1.06 | 0.035 | 0.035 | ≤1.30 | High strength |
| Mechanical Properties of ASTM A672 Welded Pipes | |||||
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Welding Point Tensile Strength (MPa) | Remarks |
| A45 | 165 | 310–450 | 30 | 310–450 | A671 / A672 |
| A50 | 185 | 345–485 | 28 | 345–485 | |
| A55 / CA55 / B55 / C55 | 205 | 380–515 | 27 | 380–515 | A672 |
| B60 / CB60 / C60 | 220 | 415–550 | 25 | 415–550 | A672 |
| B65 / CB65 / C65 | 240 | 450–585 | 23 | 450–585 | A672 |
| B70 / CB70 / C70 | 260 | 485–620 | 21 | 485–620 | A672 |
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More Details
ADVANTAGES/DISADVANTAGES
Advantages: -29°C tolerance, single-sided welding, and double-sided molding
Disadvantages: delayed ultrasonic testing after welding
INDUSTRIES
Electricity/Chemicals/Shipbuilding/Transportation
APPLICATIONS
Power station boiler feed pipes/Chemical equipment lining pipes/Ballast tanks of ships
