ASTM A333 Grade 6 (GR6) is a specification that defines the characteristics of low-temperature carbon steel pipes designed for use in environments where temperatures can plummet to as low as -50°C (-58°F). These pipes are specifically engineered to withstand the challenges of low-temperature conditions, offering a combination of strength, toughness, and ductility that ensures reliable performance in applications where brittle fracture is a concern. The chemical composition of ASTM A333 GR6 pipes adheres to specific ranges that contribute to the material's ability to maintain its mechanical properties even at low temperatures. The composition includes a maximum carbon content of 0.30%, manganese ranging from 0.29% to 1.06%, a maximum phosphorus content of 0.025%, a maximum sulfur content of 0.025%, a minimum silicon content of 0.10%, and no specified nickel or copper content.
Mechanical properties are crucial for pipes intended for low-temperature service, and ASTM A333 GR6 pipes are engineered to meet these demands. They exhibit a tensile strength ranging from 415 to 690 MPa (60 to 100 ksi), indicating their ability to withstand significant mechanical stress. The yield strength is specified as 240 MPa (35 ksi), while the minimum elongation is set at 30%. Notably, the Charpy V-notch impact test is a key indicator of a material's toughness at low temperatures. For GR6 pipes, this test is conducted at -50°C (-58°F), and the minimum average impact energy required is 16 Joules (12 ft-lbf).
These pipes are available in both seamless and welded forms. Seamless pipes are manufactured from solid round billets using a piercing and rolling process, resulting in a seamless structure without welding. Welded pipes are formed from steel strips that are rolled into a tube shape and then welded longitudinally or helically. Heat treatment processes, including normalization and tempering, are applied to enhance the material's mechanical properties and ensure uniformity.Specification | Details |
Standard | ASTM A333 |
Grade | Grade 6 |
Type | Seamless and Welded |
Size Range (OD) | 1/2" to 24" seamless, 16" to 54" welded |
Wall Thickness | Schedule 10, 20, 30, 40, Std, 60, 80, XS, 100, 120, 140, 160, XXS |
Length | Single Random, Double Random, Custom Cut |
Chemical Composition | Carbon (C): 0.30% max<br>Manganese (Mn): 0.29-1.06%<br>Phosphorus (P): 0.025% max<br>Sulfur (S): 0.025% max<br>Silicon (Si): 0.10 min<br>Nickel (Ni): -<br>Copper (Cu): - |
Mechanical Properties | Tensile Strength: 415-690 MPa (60-100 ksi)<br>Yield Strength: 240 MPa (35 ksi)<br>Elongation: 30% min<br>Charpy V-notch Impact Test: -50°C (-58°F), Min. avg. value 16 J (12 ft-lbf) |
Manufacturing Process | Seamless: Piercing and Rolling<br>Welded: Longitudinal or Helical Welding |
Heat Treatment | Normalization and Tempering |
Testing and Inspection | Hydrostatic Testing, Nondestructive Electric Test (Eddy Current or Ultrasonic), Tensile Test, Impact Test |
To ensure their quality and integrity, ASTM A333 GR6 pipes undergo stringent testing and inspection procedures. Hydrostatic testing is conducted to verify their resistance to pressure, while nondestructive electric tests, such as Eddy Current or Ultrasonic tests, are performed to detect any imperfections. Mechanical properties, including tensile strength and elongation, are assessed through tensile testing, while the Charpy impact test gauges the pipes' ability to absorb energy under low-temperature impact conditions.
These Grade 6 Welded ASTM A333 Pipes have a lot of practical features. Because of this, A333 Grade 6 pipes are in high demand and are widely utilized in a variety of industrial applications. Certain attributes present in these A333 Grade 6 pipes stem from the incorporation of alloying elements that have undergone rigorous testing and been deemed suitable for use in product manufacturing. High tensile strength, tough construction, resistance to oxidation and pitting, high hardness, resistance to stress corrosion cracking, longevity, ability to withstand high temperatures and extreme pressure, durability, and many other qualities are just a few of the features.
Our A333 Pipes Material is of the highest caliber, and it passes all required tests to guarantee its quality. The pipe can have varying wall thicknesses and diameters. Wall thicknesses vary from 3 to 12 mm, and various schedules are available to accommodate varying pressure needs. The SA333 Pipe's schedules span from 40 to SCH XXS and include all schedules. For our clients, we are able to manufacture any customized ASTM A333 Pipe component. We offer competitive pricing in the market. Thus, don't hesitate to get in touch with us with any orders or inquiries regarding SA333 Gr 6 Material; we'll stay in touch.
Element | Composition Range |
Carbon (C) | 0.30% max |
Manganese (Mn) | 0.29-1.06% |
Phosphorus (P) | 0.025% max |
Sulfur (S) | 0.025% max |
Silicon (Si) | 0.10 min |
Nickel (Ni) | - |
Copper (Cu) | - |
Property | Minimum Value | Maximum Value |
Tensile Strength | 415 MPa (60 ksi) | 690 MPa (100 ksi) |
Yield Strength | 240 MPa (35 ksi) | - |
Elongation | 30% | - |
Charpy Impact Test | 16 J (12 ft-lbf) at -50°C (-58°F) | - |
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The United Arab Emirates, Europe, Africa, Asia, and all other continents are among the destinations for Ryno Piping Solution Inc.' exports of Carbon Steel Pipe and Tube. We export carbon steel pipe and tubes to a number of countries each month. As a result of our expanding customer base, we currently export two containers of carbon steel pipe and tubes to new locations and ports each month.
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