astm a106 (asme sa106)standards
Stainless Steel Ball Valve,High Pressure Ball Valve,Flanged Ball Valve,4 Inch Flanged Ball Valve Suzhou Yuhaoxuan Electromechanical Co., Ltd , https://www.essiont-pipeline.com
ASTM A106 is a widely used standard for seamless Carbon Steel pipes designed for high-temperature applications. With a maximum carbon content of 0.30% and a manganese limit of 1.20%, it is classified as a low-carbon steel, offering excellent strength, toughness, and durability. This material is ideal for use in high-pressure and high-temperature environments such as power plants, chemical processing units, and oil refineries. Additionally, ASTM A106 provides good corrosion resistance, making it suitable for outdoor installations without the need for extra protective coatings.
This type of pipe is commonly used in forming processes like bending and curling. The main grades available are A, B, and C, each with different mechanical and chemical properties to suit various application needs. The pipe dimensions typically range from 10.3 mm to 114.3 mm in diameter, with wall thicknesses between 0.8 mm and 12 mm. Standard lengths start at 6 meters, but custom sizes can be supplied based on customer requirements.
In addition to ASTM A106, ASTM A53 covers both seamless and welded carbon steel pipes, including black and hot-dipped galvanized versions. It is applicable for nominal sizes ranging from 1/8 inch to 20 inches (3.18 mm to 660.4 mm), with specified wall thicknesses. ASTM A53 includes two grades: A and B, which differ mainly in their carbon and manganese content.
ASTM A106 also has three grades—A, B, and C—with increasing carbon content and mechanical strength. Grade A has a maximum carbon content of 0.25% and manganese between 0.27% and 0.93%. Grade B allows up to 0.30% carbon and manganese between 0.29% and 1.06%. Grade C offers higher carbon (up to 0.35%) and similar manganese levels. All grades have maximum sulfur and phosphorus limits of 0.058% and 0.048%, respectively, and a minimum silicon content of 0.20%.
Here are the detailed chemical compositions and mechanical properties for both ASTM A53 and ASTM A106:
**Chemical Composition (by %):**
| Standard | Grade | C | Si | Mn | P | S | Ni | Cr | Cu | Mo | V |
|--------------|-------|-------|------|--------|-------|-------|------|------|------|------|------|
| ASTM A53M | A | ≤0.25 | - | ≥0.95 | ≤0.05 | ≤0.045| ≤0.40| ≤0.40| ≤0.40| ≤0.15| ≤0.08|
| ASTM A53M | B | ≤0.30 | - | ≥1.20 | ≤0.05 | ≤0.045| ≤0.40| ≤0.40| ≤0.40| ≤0.15| ≤0.08|
**Mechanical Properties:**
| Standard | Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|--------------|-------|--------------------------|-----------------------|------------------|
| ASTM A53M | A | ≥330 | ≥205 | See Table 3 |
| ASTM A53M | B | ≥330 | ≥205 | See Table 3 |
**Chemical Composition (by %):**
| Standard | Grade | C | Si | Mn | P | S | Ni | Cr | Cu | Mo | V |
|--------------|-------|-------|------|--------|-------|-------|------|------|------|------|------|
| ASTM A106M | A | ≤0.25 | ≥0.10| 0.27–0.93 | ≤0.035| ≤0.035| ≤0.40| ≤0.40| ≤0.40| ≤0.15| ≤0.08|
| ASTM A106M | B | ≤0.30 | ≥0.10| 0.29–1.06 | ≤0.035| ≤0.035| ≤0.40| ≤0.40| ≤0.40| ≤0.15| ≤0.08|
| ASTM A106M | C | ≤0.35 | ≥0.10| 0.29–1.06 | ≤0.035| ≤0.035| ≤0.40| ≤0.40| ≤0.40| ≤0.15| ≤0.08|
**Mechanical Properties:**
| Standard | Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|--------------|-------|--------------------------|-----------------------|------------------|
| ASTM A106M | A | ≥330 | ≥205 | See Table 4 |
| ASTM A106M | B | ≥415 | ≥240 | See Table 4 |
| ASTM A106M | C | ≥485 | ≥275 | See Table 4 |
These specifications ensure that the pipes meet strict quality and performance standards, making them suitable for critical industrial applications where reliability and safety are essential.