ASTM A333

ASTM-A333-STEEL-PIPE

ASTM A333 Steel Pipe

In the world of construction and infrastructure, ASTM A333 stands out as a leading standard for seamless and welded carbon and alloy steel pipes. Specifically tailored for applications in low temperatures, these pipes are not only resilient but are also crafted with meticulous attention to their impact properties, especially when used in freezing conditions.

ASTM A333 Specification

Choosing ASTM A333 is choosing precision. These pipes adhere to the strict dimensions laid out by the ASME B36.10M standard. Whether it’s seamless or welded, each pipe undergoes rigorous production procedures, ensuring uniformity and consistency. The range covers diverse steel grades and offers options in surface coatings, end types, joint methods, and machining services. By opting for ASTM A333, you avail the flexibility and adaptability tailored to your unique project needs.

StandardASTM A333
ProcedureSeamless,Welding,ERW
Steel GradeGrade 1,3,4,6,7,8,9,10,11
Dimension1/2”-36”
LengthR1,R2,5.8m,11.8m,Customed
Coating3PE/3LPE, FBE, Galvanized, Varnished
Wall ThicknessSCH10,SCH40,SCH80
SCH160,SCHXS,SCHXXS
Pipe EndPlain End,Beveled End,Thread
Chemical
composition
GradeCSiMnPS
Grade 1≤0.30 0.40~1.06≤0.025≤0.025
Grade 3≤0.190.18~0.370.31~0.64≤0.025≤0.025
Grade 4≤0.120.18~0.370.50~1.05≤0.025≤0.025
Grade 6≤0.30≥0.100.29~1.06≤0.025≤0.025
Grade 7≤0.190.13~0.32≤0.90≤0.025≤0.025
Grade 8≤0.130.13~0.32≤0.90≤0.025≤0.025
Grade 9≤0.20 0.40~1.06≤0.025≤0.025
Grade 10≤0.200.10~0.351.15~1.50≤0.03≤0.015
Grade 11≤0.10≤0.35≤0.6≤0.025≤0.025
Mechanical
Property
GradeTensile Strength (MPa)Yield Point (MPa)Elongation (%)
YX
Grade 1≥380≥205≥35≥25
Grade 3≥450≥240≥30≥20
Grade 4≥415≥240≥30≥16.5
Grade 6≥415≥240≥30≥16.5
Grade 7≥450≥240≥30≥22
Grade 8≥690≥515≥22
Grade 9≥435≥315≥28
Grade 10≥550≥450≥22
Grade 11≥450≥240≥18
Strike temperture
condition
The lowest temperature for strike test
Grade°F°CGrade°F°C
ASTM A333 Grade 1-50-45ASTM A333 Grade 7-100-75
ASTM A333 Grade 3-150-100ASTM A333 Grade 8-320-195
ASTM A333 Grade 4-150-100ASTM A333 Grade 9-100-75
ASTM A333 Grade 6-50-45ASTM A333 Grade 10-75-60

ASTM A333 Dimension Table

schematic-diagram-of-pipe-dimension

Adherence to accurate dimensions is critical for the success of any project. ASTM A333 pipes are meticulously crafted as per the ASME B36.10M standard, encompassing NPS or outside diameter and schedule number of average thickness. When you select ASTM A333, you’re not just choosing a pipe; you’re choosing precise measurements, ensuring seamless integration into your projects.

Nominal Pipe SizeOutside Diameter (mm)Nominal Wall Thickness Schedule
NPSDNODSCH 10SCH 20SCH 30SCH SthSCH 40SCH 60SCH XSSCH 80SCH 100SCH 120SCH 140SCH 160SCH 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

Chemical Requirements of ASTM A333

Every ASTM A333 pipe is a testament to the perfect chemical balance, fostering durability and strength. Especially notable is the careful regulation of elements like carbon and manganese, ensuring a harmonious blend that enhances the pipe’s resilience. With the assurance that your pipe has been treated and crafted with a stringent chemical balance, you’re not just ensuring longevity but also safety.

Chemical Requirements
ElementComposition, %
Grade 1AGrade 3Grade 4Grade 6AGrade 7Grade 8Grade 9Grade 10Grade 11
Carbon, max0.30.190.120.30.190. 130.20.20.10
Manganese0.40– 1.060.31–0.640.50– 1.050.29– 1.060.90 max0.90 max0.40– 1.061.15– 1.500.60 max
Phosphorus, max0.0250.0250.0250.0250.0250.0250.0250.0350.025
Sulfur, max0.0250.0250.0250.0250.0250.0250.0250.0150.025
Silicon0.18–0.370.08–0.370.10 min0.13–0.320.13–0.320.10–0.350.35 max
Nickel3.18–3.820.47–0.982.03–2.578.40–9.601.60–2.240.25 max35.0–37.0
Chromium0.44– 1.010.15 max0.50 max
Copper0.40–0.750.75– 1.250.15 max
Aluminum0.04–0.300.06 max
Vanadium, max0.12
Columbium, max0.05
Molybdenum, max0.050.50 max
Cobalt0.50 max
A For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.

Mechanical Requirements of ASTM A333

Mechanical robustness is non-negotiable in infrastructural projects. ASTM A333 doesn’t compromise. Each pipe undergoes a series of tests such as tension, flattening, hardness, and bend tests, ensuring they meet the highest standards. When you invest in ASTM A333, you’re investing in unparalleled mechanical integrity, guaranteeing the stability of your undertakings.

Tensile Requirements
Mechanical PropertiesGrade 1Grade 3Grade 4Grade 6Grade 7Grade 8Grade 9Grade 10Grade 11
psiMPapsiMPapsiMPapsiMPapsiMPapsiMPapsiMPapsiMPapsiMPa
Tensile Strength, min5500038065000450600004156000041565000450100000690630004358000055065000450
Yield Strength, min300002053500024035000240350002403500024075000515460003156500045035000240

Steel Grades in ASTM A333

Diversity is at the core of ASTM A333, ensuring there’s a fit for every requirement. With grades ranging from Grade 1 to Grade 11, each offers distinct properties catering to varying needs. By choosing ASTM A333, you’re not just selecting a steel grade but optimizing the structural integrity, durability, and efficiency of your projects.

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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