ASTM A106 Seamless Pipe

shows-ASTM-A106-seamless-pipe-waiting-for-container-loading

ASTM A106 Seamless Pipe

At UNIACERO, we proudly present the ASTM A106 and ASME SA106 seamless pressure pipes, integral for high-temperature service applications. These pipes are extensively utilized in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships. Our pipes are designed to efficiently transport fluids and gases, especially under conditions of elevated temperatures and pressure levels. 

Dedicated to excellence, we prioritize the use of top-tier carbon steel materials. Adhering rigorously to the stringent criteria outlined in the ASTM A106 and ASME SA106 specifications, each pipe surpasses the stipulated benchmarks for weight, length, and testing requirements. Trust in our expertise to provide you with pipes that meet the highest industry standards and enhance the efficiency of your operations.

ASTM A106 Specification

Our ASTM A106 and ASME SA106 pipes come with a comprehensive specification range. They are available in Grades A, B, and C, with dimensions ranging from NPS ¼” to 36” OD. The production procedures we employ ensure the pipes are suitable for bending, flanging, and similar forming operations. Additionally, our pipes are available with various surface coatings, end types, joint methods, and machining services, ensuring they fit seamlessly into your specific requirements.

Crafted for elevated temperature applications, our seamless carbon steel pipes strictly adhere to the standard specification for seamless carbon steel pipes designed to withstand high-temperature service. This commitment ensures the pipes meet the specified minimum yield strength and wall thickness requirements, providing reliability and durability in challenging conditions.

Production StandardASTM A106
Manufacturing ProcessesERW (Electric Resistance Welding)
SMLS (Cold Drawn Seamless)
Outside Diameter33.4mm – 355.6mm (1″ – 14″)
Wall ThicknessSch5, Sch10, Sch30, Sch40
Pipe Length1.5 – 12 meters
Steel GradeDepending on the implementation criteria chosen by the customer, see other home page standards for details.
Corrosion PreventionLacquer, Primer, Galvanizing, FBE coating
End ProcessesSquare Cut, Bevelling, Grooving
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding as per customer demand

ASTM A106 Dimension Table

schematic-diagram-of-pipe-dimension

Our pipes are meticulously crafted to meet precise dimensions. Ranging from NPS 1/8 to NPS 48, they come with a nominal wall thickness as specified in ANSI B 36.10. Whether you require hot-finished or cold-drawn pipes under NPS 1-1/2″, or hot-finished for larger sizes, we cater to all your dimensional needs, ensuring optimal performance and fit.

Steel Pipe Dimensions Chart ANSI B36. 10
Nominal
Pipe Size
Outside
Diameter
(mm)
Nominal Wall Thickness Schedule
NPSDNODSCH
10
SCH
20
SCH
30
SCH
Sth
SCH
40
SCH
60
SCH
XS
SCH
80
SCH
100
SCH
120
SCH
140
SCH
160
SCH
XXS
1/8610.31.241.451.731.732.412.41
1/4813.71.651.852.242.243.023.02
3/81017.11.651.852.312.313.203.20
1/21521.32.112.412.772.773.733.734.787.47
3/42026.72.112.412.872.873.913.915.567.82
12533.42.772.93.383.384.554.556.359.09
1 1/43242.22.772.973.563.564.854.856.359.70
1 1/24048.32.773.183.683.685.085.087.1410.15
25060.32.773.183.913.915.545.548.7411.07
2 1/265733.054.785.165.167.017.019.5314.02
38088.93.054.785.495.497.627.6211.1315.24
3 1/290101.63.054.785.745.748.088.08
4100114.33.054.786.026.028.568.5611.1313.4917.12
5125141.33.406.556.559.539.5312.7015.8819.05
6150168.33.407.117.1110.9710.9714.2718.2621.95
8200219.13.766.357.048.188.1810.3112.7012.7015.0918.2620.6223.0122.23
10250273.04.196.357.809.279.2712.7012.7015.0918.2621.4425.4028.5825.40
12300323.84.576.358.389.5310.3114.2712.7017.4821.4425.4028.5833.3225.40
14350355.66.357.929.539.5311.1315.0912.7019.0523.8327.7931.7535.71
16400406.46.357.929.539.5312.7016.6612.7021.4426.1930.9636.5340.49
184504576.357.9211.139.5314.2719.0512.7023.8329.3634.9339.6745.24
205005086.359.5312.709.5315.0920.6212.7026.1932.5438.1044.4550.01
225505596.359.5312.709.5322.2312.7028.5834.9341.2847.6353.98
246006106.359.5314.279.5317.4824.6112.7030.9638.8946.0252.3759.54
266506607.9212.709.5312.70
287007117.9212.7015.889.5312.70
307507627.9212.7015.889.5312.70
328008137.9212.7015.889.5317.4812.70
348508647.9212.7015.889.5317.4812.70
369009147.9212.7015.889.5319.0512.70
389509659.5312.70
40100010169.5312.70
42105010679.5312.70
44110011189.5312.70
46115011689.5312.70
48120012199.5312.70

Chemical Requirements of ASTM A106

At UNIACERO, we understand the importance of chemical composition in determining the pipe’s properties. Our ASTM A106 and ASME SA106 pipes are manufactured with a specific chemical composition, ensuring they can withstand high temperatures and pressures. This precise composition guarantees the pipe’s durability, resistance to corrosion, and overall performance in demanding environments.

Composition %
ElementGrade AGrade BGrade C
Carbon,max0.250.300.35
Manganese0.27-0.930.29-1.060.29-1.06
Phosphorus,max0.0350.0350.035
Sulfur,max0.0350.0350.035
Silicon,min0.100.100.10
Chromium,max0.400.400.40
Copper,max0.400.400.40
Molybdenum,max0.150.150.15
Nickel,max0.400.400.40
Vanadium,max0.080.080.08

Mechanical Requirements of ASTM A106

Our pipes are not just chemically sound but also mechanically robust. These steel pipes undergo thorough mechanical tests, including the flattening test, ensuring that they conform to the standard specification for seamless carbon steel pipes. They are designed to handle stress, pressure, and temperature variations with ease. The mechanical properties of our pipes, from their tensile strength to their hardness, are optimized to ensure they perform consistently under varying conditions, making them a reliable choice for your operations.

Mechanical PropertiesGrade AGrade BGrade C
Tensile Strength,min,psi [MPa]48 000 [330]60 000 [415]70 000 [485]
Yield Strength,min,psi [MPa]30 000 [205]35 000 [240]40 000 [275]

Steel Grades in ASTM A106

We offer ASTM A106 and ASME SA106 pipes in three distinct steel grades: Grade A, Grade B, and Grade C. Each grade is tailored to specific applications and temperature ranges, ensuring you get a product that’s perfectly aligned with your needs. Whether you prioritize ductility, strength, or temperature resistance, we have a grade that’s right for you.

Our Advantages

  1. Over 25 years of experience in pipeline production and installation.
  2. Comprehensive inspection equipment.
  3. Independent product serial numbers for traceability.
  4. Advanced production equipment – Seamer high-frequency welding machine from the United States.
  5. Complete qualifications – API 5L/API 5CT/FM/UL fire pipe certification, etc.
  6. Wide range of products – independently developed solar torque tubes, highly favored in the European market.
  7. Customers spread across the globe.
  8. Excellent after-sales service and sense of responsibility.

Application Scenarios

Our steel pipes are engineered to withstand high temperatures, corrosive environments, and varying pressures, ensuring reliability and safety in the complex petrochemical processes. 

Whether it’s transferring crude oil, natural gas, or chemical intermediates, the robustness and versatility of steel pipes make them indispensable components of the plant’s infrastructure, contributing to efficient production and maintenance of stringent safety standards.

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