ASTM A333 Pipe
SSM supplies ASTM A333 Seamless and Welded Steel carbon steel pipe
A333 Carbon Steel Seamless welded pipes for Low-Temperature Uses
SSM provides seamless, electric resistance welded (ERW), and submerged arc welded (SAW) pipes manufactured according to API 5L specifications for the oil and gas industry, meeting various mechanical performance and corrosion resistance requirements. The specific product parameters and related performance tables are as follows:
API 5L seamless and welded carbon steel supplier, SSM provides product parameters as shown in the following table:
| Items | Parameters |
| OD | Seamless from 2″ NPS to 36″ OD ERW from 2″ NPS to 24″ OD DSAW from 20″ to 48″ OD |
| WT | Common wall thickness specifications include SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS (extra strong wall), etc. |
| Length | 20 feet (6 meters) or 40 feet (12 meters), according to customer requirements. |
| Grade | Grade 1, Grade 3, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11 |
| Standards | ASTM A333 / ASME B36.10 M |
Chemical Composition & Mechanical Properties
SSM supplies seamless and welded carbon pipes. Here’s a summary of the typical chemical composition and mechanical properties of ASTM A333 pipes:
| Element | Carbon (C), % | Manganese (Mn), % | Phosphorus (P), % | Sulfur (S), % | Silicon (Si), % |
| Grade 1 | 0.30 max | 0.40 – 1.06 | 0.025 max | 0.025 max | … |
| Grade 3 | 0.19 max | 0.31 – 0.64 | 0.025 max | 0.025 max | 0.18 – 0.37 |
| Grade 6 | 0.30 max | 0.29 – 1.06 | 0.025 max | 0.025 max | 0.10 – 0.35 |
| Grade 7 | 0.19 max | 0.90 max | 0.025 max | 0.025 max | 0.13 – 0.32 |
| Grade 8 | 0.13 max | 0.90 – 1.20 | 0.025 max | 0.025 max | 0.13 – 0.32 |
| Grade 9 | 0.20 max | 1.60 – 2.10 | 0.025 max | 0.025 max | 0.10 – 0.50 |
| Grade 10 | 0.20 max | 1.15 max | 0.030 max | 0.030 max | … |
| Grade 11 | 0.10 max | 0.35 max | 0.035 max | 0.035 max | 0.35 max |
The mechanical properties of each grade also differ:
| Grade | Tensile Strength, min (MPa) | Yield Strength, min (MPa) | Elongation in 2 in. or 50 mm, min % |
| Grade 1 | 380 – 550 | 205 | 35 |
| Grade 3 | 450 – 620 | 240 | 30 |
| Grade 6 | 415 – 585 | 240 | 30 |
| Grade 7 | 450 min | 240 | 30 |
| Grade 8 | 690 min | 515 | 22 |
| Grade 9 | 435 min | 315 | 28 |
| Grade 10 | 550 – 760 | 450 | 22 |
| Grade 11 | 450 min | 240 | 30 |
Manufacturing & Tolerance Requirements
Manufacturing Methods
Seamless Pipes: For seamless ASTM A333 pipes, the steel is formed into a solid cylindrical shape without seams. This process involves hot or cold drawing of the steel billet through a mandrel to create the pipe’s outer diameter and wall thickness.
Welded Pipes: Welded ASTM A333 pipes are formed by rolling and welding a flat steel plate into a cylindrical shape. Welded pipes can be produced using several methods such as Electric Resistance Welding (ERW), Submerged Arc Welding (SAW), or Electric Fusion Welding (EFW).
Advantages and Disadvantages of ASTM A333 Pipes
ASTM A333 pipes offer significant advantages in low-temperature applications where toughness and impact resistance are critical. However, their use is specialized and primarily suited for industries and processes that operate in extreme cold environments. Careful consideration of cost, application requirements, and alloying elements is essential when choosing ASTM A333 pipes for specific projects.
Advantages:
SSM offers a333 pipes that can operate at extremely low temperatures of -320°F (-195°C) and have good strength properties and are easy to weld, which facilitates installation and maintenance. Different grades of material also provide good corrosion resistance.
Disadvantages:
Due to A333 pipes’ alloying elements and manufacturing process. ASTM A333 pipes cost more than ordinary carbon steel pipes, and are designed specifically for low-temperature services, which limits their main application range
Applications of ASTM A333 Pipes
- Low-Temperature Services
- Oil and Gas Industry
- Power Generation
- Chemical Processing
- Refinery Applications
- Pipelines for LNG (Liquefied Natural Gas)
- Structural Applications
Comparison of ASTM A53 and A333 Pipes
The choice between ASTM A53 and ASTM A333 pipes depends largely on the specific temperature and pressure requirements of the application. ASTM A53 is ideal for mechanical and pressure applications, as well as general uses in steam, water, gas, and air lines. In contrast, ASTM A333 is preferred for low-temperature service where impact toughness and resistance to brittle fracture are critical. Each specification offers distinct advantages tailored to their respective service conditions in various industrial sectors.
| Standards | ASTM A53 | ASTM A333 |
| Material Grades | Grade A, Grade B | Grade 1, Grade 3, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11 |
| Application Focus | Mechanical and pressure applications, ordinary uses in steam, water, gas, and air lines | Low-temperature applications down to -150°F (-101°C) |
| Chemical Composition | Higher carbon content, suitable for mechanical applications | Lower carbon content, includes alloying elements for low-temperature toughness |
| Mechanical Properties | Higher tensile and yield strengths, suitable for mechanical applications | Lower tensile and yield strengths, adequate for low-temperature service |
| Manufacturing | Typically electric resistance welded (ERW) or seamless | Can be seamless or welded, depending on grade |
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