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ASTM A333

TUSPIPE manufactures steel pipes that are certified to the ASTM A333 standard. Our ASTM A333 steel pipes are designed for reliability and can operate stably under various working conditions, ensuring the quality and performance of the pipes. Furthermore, we control every step from raw material inspection to final product shipment.

ASTM A333

ASTM A333

ASTM A333 is a standard developed by the American Society for Materials and Testing (ASTM). The ASTM A333 standard focuses on seamless and welded steel pipes at low temperatures.

The ASTM A333 standard steel pipe provides a reliable and flexible pipe selection for low temperature environments, and also provides a strong basis and support for engineering design and material selection.

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Steel Grade of ASTM A333

The ASTM A333 standard is divided into many different steel grades according to the environment and manufacturing method of the pipe. Each grade has different mechanical properties and impact test temperatures. At the same time, the ASTM A333 standard has strict and detailed requirements for each grade of pipe, ensuring that the tensile strength and yield strength of the pipe manufactured meet the standards.

For example, the ASTM A333 Grade 1 pipe has a minimum impact test temperature of -50°C, which has good weldability and high toughness, and is commonly used in applications such as mild low-temperature pipes and equipment.

The minimum impact test temperature for ASTM A333 Grade 3 tubing is -150°C. Suitable for extreme low temperature environment applications requiring high low temperature resistance. For example, the Arctic region and deep-sea oil and gas exploration.

  • ASTM A333 Grade 1
  • ASTM A333 Grade 3
  • ASTM A333 Grade 4
  • ASTM A333 Grade 6
  • ASTM A333 Grade 7
  • ASTM A333 Grade 8
  • ASTM A333 Grade 9
  • ASTM A333 Grade 10
  • ASTM A333 Grade 11
표준 ASTM A333
제조 Standard Specification for
Processed Seamless and Welded Steel Pipe for Low-Temperature
Service1
강철 등급 Grade 1,3,4,6,7,8,9,10,11
Our Diameter 21.3mm-914.4mm
길이 Single Random Length, Double Random Length, 20 ft, 40 ft
Corrosion prevention 3PE/3LPE, FBE, Galvanized, Varnished
WT Schedules SCH 10, SCH 20, SCH 40, SCH STD, SCH 80, SCH XS to SCH 160, SCH XXS
ENDS Plain End,Beveled End,Thread
Chemical 등급 C Si Mn P S
composition Grade 1 ≤0.30 0.40~1.06 ≤0.025 ≤0.025
Grade 3 ≤0.19 0.18~0.37 0.31~0.64 ≤0.025 ≤0.025
Grade 4 ≤0.12 0.18~0.37 0.50~1.05 ≤0.025 ≤0.025
Grade 6 ≤0.30 ≥0.10 0.29~1.06 ≤0.025 ≤0.025
Grade 7 ≤0.19 0.13~0.32 ≤0.90 ≤0.025 ≤0.025
Grade 8 ≤0.13 0.13~0.32 ≤0.90 ≤0.025 ≤0.025
Grade 9 ≤0.20 0.40~1.06 ≤0.025 ≤0.025
Grade 10 ≤0.20 0.10~0.35 1.15~1.50 ≤0.03 ≤0.015
Grade 11 ≤0.10 ≤0.35 ≤0.6 ≤0.025 ≤0.025
기계 등급 인장 강도(MPa) Yield Point (MPa) 연신율 (%)
속성 Y X
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 The lowest temperature for strike test
condition 등급 °F °C 등급 °F °C
ASTM A333 Grade 1 -50 -45 ASTM A333 Grade 7 -100 -75
ASTM A333 Grade 3 -150 -100 ASTM A333 Grade 8 -320 -195
ASTM A333 Grade 4 -150 -100 ASTM A333 Grade 9 -100 -75
ASTM A333 Grade 6 -50 -45 ASTM A333 Grade 10 -75 -60

DIMENSIONS AND SIZES OF ASTM A333 PIPE

ASTM A333 steel pipe is available in a variety of sizes. Nominal pipe sizes range from 1/8 to 42 inches. In addition, the outside diameter, length and wall thickness can be customized according to the project requirements.

공칭 파이프 크기 외경(mm) Nominal Wall Thickness Schedule
NPS DN OD SCH 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
1/8 6 10.3 1.24 1.45 1.73 1.73 2.41 2.41
1/4 8 13.7 1.65 1.85 2.24 2.24 3.02 3.02
3/8 10 17.1 1.65 1.85 2.31 2.31 3.2 3.2
1/2 15 21.3 2.11 2.41 2.77 2.77 3.73 3.73 4.78 7.47
3/4 20 26.7 2.11 2.41 2.87 2.87 3.91 3.91 5.56 7.82
1 25 33.4 2.77 2.9 3.38 3.38 4.55 4.55 6.35 9.09
1 1/4 32 42.2 2.77 2.97 3.56 3.56 4.85 4.85 6.35 9.7
1.5 40 48.3 2.77 3.18 3.68 3.68 5.08 5.08 7.14 10.15
2 50 60.3 2.77 3.18 3.91 3.91 5.54 5.54 8.74 11.07
2 1/2 65 73 3.05 4.78 5.16 5.16 7.01 7.01 9.53 14.02
3 80 88.9 3.05 4.78 5.49 5.49 7.62 7.62 11.13 15.24
3 1/2 90 101.6 3.05 4.78 5.74 5.74 8.08 8.08
4 100 114.3 3.05 4.78 6.02 6.02 8.56 8.56 11.13 13.49 17.12
5 125 141.3 3.4 6.55 6.55 9.53 9.53 12.7 15.88 19.05
6 150 168.3 3.4 7.11 7.11 10.97 10.97 14.27 18.26 21.95
8 200 219.1 3.76 6.35 7.04 8.18 8.18 10.31 12.7 12.7 15.09 18.26 20.62 23.01 22.23
10 250 273 4.19 6.35 7.8 9.27 9.27 12.7 12.7 15.09 18.26 21.44 25.4 28.58 25.4
12 300 323.8 4.57 6.35 8.38 9.53 10.31 14.27 12.7 17.48 21.44 25.4 28.58 33.32 25.4
14 350 355.6 6.35 7.92 9.53 9.53 11.13 15.09 12.7 19.05 23.83 27.79 31.75 35.71
16 400 406.4 6.35 7.92 9.53 9.53 12.7 16.66 12.7 21.44 26.19 30.96 36.53 40.49
18 450 457 6.35 7.92 11.13 9.53 14.27 19.05 12.7 23.83 29.36 34.93 39.67 45.24
20 500 508 6.35 9.53 12.7 9.53 15.09 20.62 12.7 26.19 32.54 38.1 44.45 50.01
22 550 559 6.35 9.53 12.7 9.53 22.23 12.7 28.58 34.93 41.28 47.63 53.98
24 600 610 6.35 9.53 14.27 9.53 17.48 24.61 12.7 30.96 38.89 46.02 52.37 59.54
26 650 660 7.92 12.7 9.53 12.7
28 700 711 7.92 12.7 15.88 9.53 12.7
30 750 762 7.92 12.7 15.88 9.53 12.7
32 800 813 7.92 12.7 15.88 9.53 17.48 12.7
34 850 864 7.92 12.7 15.88 9.53 17.48 12.7
36 900 914 7.92 12.7 15.88 9.53 19.05 12.7
38 950 965 9.53 12.7
40 1000 1016 9.53 12.7
42 1050 1067 9.53 12.7

CHEMICAL COMPOSITION REQUIREMENT OF ASTM A333 PIPE

The chemical composition standard of ASTM A333 steel pipe is very strict, and the content and proportion of various chemical elements need to be strictly controlled in the production process of the pipe. The effect of chemical composition on the properties of materials is very important.

  • Carbon (C) : Generally controlled below 0.30%. The carbon content determines the hardness, strength and corrosion resistance of steel.
  • Manganese (Mn) : Usually between 0.40-1.06%. It can improve its weldability and corrosion resistance.
  • Silicon (Si) : Generally controlled between 0.10-0.35%. Silicon can reduce the tendency to crack during heat treatment.
  • Phosphorus (P) and sulfur (S) : The content is controlled below 0.025%. Avoid negative effects on weldability and cold brittleness.
Chemical Requirements
요소 컴포지션, %
Grade 1A Grade 3 Grade 4 Grade 6A Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
탄소, 최대 0.3 0.19 0.12 0.3 0.19 0. 13 0.2 0.2 0.1
망간 0.40– 1.06 0.31–0.64 0.50– 1.05 0.29– 1.06 0.90 max 0.90 max 0.40– 1.06 1.15– 1.50 0.60 max
인, 최대 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.035 0.025
유황, 최대 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.015 0.025
실리콘 … 0.18–0.37 0.08–0.37 0.10 min 0.13–0.32 0.13–0.32 … 0.10–0.35 0.35 max
니켈 … 3.18–3.82 0.47–0.98 … 2.03–2.57 8.40–9.60 1.60–2.24 0.25 max 35.0–37.0
크롬 … … 0.44– 1.01 … … … … 0.15 max 0.50 max
구리 … … 0.40–0.75 … … … 0.75– 1.25 0.15 max …
알루미늄 … … 0.04–0.30 … … … … 0.06 max …
Vanadium, max … … … … … … … 0.12 …
Columbium, max … … … … … … … 0.05 …
Molybdenum, max … … … … … … … 0.05 0.50 max
Cobalt … … … … … … … … 0.50 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.
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MECHANICAL PROPERTIES OF ASTM A333 PIPE

The mechanical properties of ASTM A333 steel pipe are very important for its good application in cold areas and low temperature processes.

  • Yield strength: ASTM A333 steel tubing typically has yield strength of 35,000 to 45,000 pounds per square inch (240 to 310 mpa). This allows stable operation of the pipeline system at low temperatures.
  • Tensile strength: ASTM A333 pipe has a tensile strength range of 60,000 to 80,000 pounds per square inch (415 to 550 mpa). Reliable ability to withstand tensile stress.
  • Impact toughness: Impact tests are used to assess its fracture toughness at low temperatures. ASTM A333 piping meets the impact energy absorption requirements at specified low temperatures.
Tensile Requirements
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa
Tensile Strength, min 55000 380 65000 450 60000 415 60000 415 65000 450 100000 690 63000 435 80000 550 65000 450
Yield Strength, min 30000 205 35000 240 35000 240 35000 240 35000 240 75000 515 46000 315 65000 450 35000 240
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APPLICATIONS OF ASTM A333

  • Cryogenic field development: The ASTM A333 pipeline serves as the main pipeline for transporting crude oil and natural gas, ensuring long-term stable operation of the pipeline system.
  • Liquefied natural gas (LNG) industry: such as LNG transmission pipelines and LNG storage facilities. LNG needs to be transported at -162 degrees Celsius.
  • Special chemical media transport: ASTM A333 pipe through reasonable alloy design and chemical composition control, effectively avoid the corrosion of these media.
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1. What Is the Equivalent of ASTM A333?

ASTM A333 is a standard under the American standard system for seamless and welded pipes in low-temperature environments. Its equivalent standards include:

  • EN 10216-4 (European standard): Low-temperature seamless steel pipes, similar to ASTM A333 Grade 6 and Grade 3.
  • GB/T 18984 (Chinese standard): Low-temperature seamless steel pipes, with some parameters similar to ASTM A333.
  • ISO 9329-1: Seamless steel pipes for low-temperature pressure applications, with some properties similar to ASTM A333.
  • JIS G3460 (Japanese standard): JIS G3460 is a carbon steel pipe suitable for low-temperature environments, similar to ASTM A333 Grade 6.

Adhesion testing measures the bond strength between the substrate and the coating. Common ASTM standards include ASTM D3359, ASTM D4541, ASTM D7234, and ASTM C633.

ASTM high-strength steel includes ASTM A572 Grade 42/50/60/65, with a minimum yield strength of 290–450 MPa. This is a structural steel used in construction and bridges.

ASTM A553 is a low-temperature high-strength pressure vessel steel suitable for liquefied gas storage tanks.

API 5L X70/X80 has a minimum yield strength of 483-552 MPa and is a high-pressure pipeline steel.

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