ASTM A671/A672 Pipe
What is ASTM A671 Steel Pipe?
A671 steel pipe specification covers electric-fusion-welded steel pipe with filler metal added, fabricated from pressure vessel quality plate of several analyses and strength levels, and suitable for high-pressure service at atmospheric and lower temperatures. Heat treatment may or may not be required to attain the desired properties or to comply with applicable code requirements. The A671 steel pipe material includes 0.24% of Carbon, 0.13% to 0.45% Silicon, and 0.79% to 1.30% of Manganese. This carbon-based stainless-steel alloy also contains trace amounts of other minerals. For example, 0.035% of phosphorus and Sulphur can be found in the alloy.
What is ASTM A672 Steel Pipe?
ASTM A672 steel pipe is the Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures. ASTM A672 LSAW steel pipeline takes a hot rolling process which can be standardized, quenched, disinfected, and suitable for thermostat and other heat treatment methods, use of LSAW steel pipeline is mainly for land, offshore oil, natural gas, liquid coal, and other long-distance transmission pipeline. ASTM A672 piping material’s chemical composition includes 0.25 carbon max, 0.98 Manganese, 0.64 molybdenum, and 0.45 Silicon. It allows certain mechanical properties such as Yield Strength (Mpa) of 37 and Tensile Strength (Mpa) of 65.
Mechanical Properties of ASTM A671/A672 Steel Pipe
| Products | Steel Grade | BASE METAL MECHANICAL COMPOSITION | Welding point tensile strength (N/mm2) | Remarks | |||
| Yield point (N/mm2) | Tensile Stregth (N/mm2) | Test Pieces | Elongation (%) | ||||
| Pipes for pressure service ASTM A671, A672 | -/A45 | -/165 | -/310~450 | - | -/30 | -/310~450 | A671/ A672 |
| -/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/B70 | 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 | |||
Chemical Requirements of ASTM A671/A672 Steel Pipe
| 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 | |||||||
Size Chart of ASTM A671 Steel Pipe / ASTM A672 Steel Pipe
| OD | 40S | 5S | 10S | S10 | S20 | S40 | S60 | XS/80S | S80 | S100 | S120 | S140 | S160 | XXS |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm |
| 10.029 | 1.02 | 1.073 | 2.041 | |||||||||||
| 13.072 | 1.07 | 2.024 | 3.002 | |||||||||||
| 17.015 | 1.07 | 2.031 | 3.02 | |||||||||||
| 21.034 | 2.08 | 1.07 | 2.01 | 2.077 | 3.073 | 3.073 | 4.078 | 7.047 | ||||||
| 26.067 | 2.09 | 1.07 | 2.01 | 2.087 | 3.091 | 3.091 | 5.056 | 7.082 | ||||||
| 33.04 | 3.04 | 1.07 | 2.08 | 3.038 | 4.055 | 4.055 | 6.035 | 9.009 | ||||||
| 42.016 | 3.06 | 1.07 | 2.08 | 3.056 | 4.085 | 4.085 | 6.035 | 9.07 | ||||||
| 48.026 | 3.07 | 1.07 | 2.08 | 3.068 | 5.008 | 5.008 | 7.014 | 10.02 | ||||||
| 60.033 | 3.09 | 1.07 | 2.08 | 3.091 | 5.054 | 5.054 | 9.074 | 11.01 | ||||||
| 73.003 | 5.02 | 2.01 | 3.01 | 5.016 | 7.001 | 7.001 | 9.053 | 14 | ||||||
| 88.09 | 5.05 | 2.01 | 3.01 | 5.049 | 7.062 | 7.062 | 11.01 | 15.02 | ||||||
| 101.06 | 5.07 | 2.01 | 3.01 | 5.074 | 8.008 | 8.008 | ||||||||
| 114.03 | 6 | 2.01 | 3.01 | 6.002 | 8.056 | 8.056 | 11.01 | 13.05 | 17.01 | |||||
| 141.03 | 6.06 | 2.08 | 3.04 | 6.055 | 9.053 | 9.053 | 12.07 | 15.09 | 19.01 | |||||
| 168.03 | 7.01 | 2.08 | 3.04 | 7.011 | 10.097 | 11 | 14.03 | 18.03 | 22 | |||||
| 219.01 | 8.02 | 2.08 | 3.08 | 6.04 | 8.018 | 10.03 | 12.07 | 12.07 | 15.01 | 19.03 | 20.06 | 23 | 22.02 | |
| 273.01 | 9.03 | 3.04 | 4.02 | 6.04 | 9.027 | 12.07 | 12.07 | 15.01 | 19.03 | 21.04 | 25.04 | 28.06 | 25.04 | |
| 323.09 | 9.05 | 4 | 4.06 | 6.04 | 10.03 | 14.03 | 12.07 | 17.05 | 21.04 | 25.04 | 28.06 | 33.03 | 25.04 | |
| 355.06 | 9.05 | 4 | 4.08 | 6.04 | 7.09 | 11.01 | 15.01 | 12.07 | 19.01 | 23.08 | 27.08 | 31.08 | 35.07 | |
| 406.04 | 9.05 | 4.02 | 4.08 | 6.04 | 7.09 | 12.07 | 16.07 | 12.07 | 21.04 | 26.02 | 31 | 36.05 | 40.05 | |
| 457.02 | 9.05 | 4.02 | 4.08 | 6.04 | 7.09 | 14.03 | 19.01 | 12.07 | 23.08 | 29.04 | 34.09 | 39.07 | 45.02 | |
| 508 | 9.05 | 4.08 | 5.05 | 6.04 | 9.05 | 15.01 | 20.06 | 12.07 | 26.02 | 32.05 | 38.01 | 44.05 | 50 | |
| 558.08 | 9.05 | 4.08 | 5.05 | 6.04 | 9.05 | 22.02 | 12.07 | 28.06 | 34.09 | 41.03 | 47.06 | 54 | ||
| 609.06 | 9.05 | 5.05 | 6.04 | 6.04 | 9.05 | 17.05 | 24.06 | 12.07 | 31 | 38.09 | 46 | 52.04 | 59.05 | |
| 660.04 | 9.05 | 7.09 | 13 | 12.07 | ||||||||||
| 711.02 | 9.05 | 7.09 | 13 | 12.07 | ||||||||||
| 762 | 9.05 | 6.04 | 7.09 | 7.09 | 13 | 12.07 | ||||||||
| 812.08 | 9.05 | 7.09 | 13 | 17.05 | 12.07 | |||||||||
| 863.06 | 9.05 | 7.09 | 13 | 17.05 | 12.07 | |||||||||
| 914.04 | 9.05 | 7.09 | 13 | 19.01 | 12.07 |
Application of ASTM A671 Steel Pipe / ASTM A672 Steel Pipe
- Power Plants
- Modern Architecture
- Petroleum Industry
- General Purpose Applications
- Fabrication Industry
- Oil Industry
- Fertilizers
- Oil and Gas Industry
- Construction
- Chemical Industries
- Ship Building
We are a professional Carbon Steel Pipe manufacturer. We provide Carbon Steel Pipe of different sizes as well as steel pipes and pipe fittings of various specifications.
Our Advantages:
1.China-leading product service provider and exporter of steel pipe
2.Competitive price and quality from our own factory
3.One-stop Resource Integration
4.Passed the ISO9001, CE, SGS certification every year
5.Best service with 24-hour response
6.Flexible payment methods
7.Strong production capacity
8.Fast delivery and standard export packaging
9.OEM/ODM
If you would like to inquire about any steel products, please feel free to contact us:sales@bestartubes.com
