Product details
ASTM A106 steel tube
ASTM A106 steel pipes (also known as ASME SA106 pipes) are commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers and ships where pipes must carry fluids and gases that exhibit higher temperatures and pressure levels. Due to their special use, ASTM A106 steel pipes can only be seamless steel pipes and can also be welded steel pipes.
ASTM A106 steel pipes are available in a size range of 1/2 to 28 inches, and in piping programs from 10 to 160 (according to ASME B36.10 specification).
process
The raw material is hardened steel, which is suitable for high temperature service, is manufactured in one or more of the following ways: open home oven, blown oxygen converter or electric oven. Primary casting can be combined with degassing or refining alone. Steel can melt into ingots or continuously.
NPS 1-1/2" and below are available in hot finish or cold stretched type. NPS pipes of 2 inches and above are usually hot-laminated. Hot-finished pipe does not need to be heat treated. Cold-stretched pipe will be heat treated after the final cold-stretching pass.
In terms of material grades, A106 pipes are manufactured in grades A, B, and C. The chemical composition of the three grades of ASTM A106 is shown in the following table:
| CHEMICAL COMPOSITION ASTM A106 | |||
| Grade A | Grade B | Grade C | |
| Carbon (max) | 0.25 | 0.30 | 0.35 |
| manganese | 0.27 to 0.93 | 0.29 to 1.06 | 0.29 to 1.06 |
| Phosphorus (max) | 0.035 | 0.035 | 0.035 |
| Sulfur (max.) | 0.035 | 0.035 | 0.035 |
| Silicon (min) | 0.10 | 0.10 | 0.10 |
| Chromium (max) | 0.40 | 0.40 | 0.40 |
| Copper (max) | 0.40 | 0.40 | 0.40 |
| Molybdenum (max) | 0.15 | 0.15 | 0.15 |
| Nickel (max.) | 0.40 | 0.40 | 0.40 |
| Vanadium (max) | 0.08 | 0.08 | 0.08 |
Mechanical composition
| ASTM A106 MECHANICAL COMPOSITION | ||
| ASTM A106 tube | Tensile strength, min., Psi | Production force, min., Psi |
| A106 Grade A | 48000 | 30000 |
| A106 Grade B | 60000 | 35000 |
| A106 Grade C | 70000 | 40000 |
specification
Wall thickness: The minimum wall thickness at any point should not exceed 12.5% below the specified nominal thickness.
Weight: Weight of any length should not vary more than 10% over and 3.5% below what is specified. NPS 4 and smaller batch heavy. Larger sizes will be weighed separately by length.
Diameter: see table
| A106 PIPING Diameter TOLERANCE ASTM | ||||
| NPS [DN Designtor] | above | under | ||
| in. | Mm | in. | Mm | |
| 1/8 to 1-1 /2 [6 to 40], incl. | 1/64 (0.015) | 0.4 | 1/64 (0.015) | 0.4 |
| More than 1-1/2 to 4 [40 to 100], incl. | 1/32 (0.031) | 0.8 | 1/32 (0.031) | 0.8 |
| More than 4 to 8 [100 to 200], incl. | 1/16 (0.062) | 1.6 | 1/32 (0.031) | 0.8 |
| More than 8 to 18 [200 to 450], incl. | 3/32 (0.093) | 2.4 | 1/32 (0.031) | 0.8 |
| More than 18 to 26 [450 to 650], incl. | 1/8 (0.125) | 3.2 | 1/32 (0.031) | 0.8 |
| More than 26 to 34 [650 to 859], incl. | 5/32 (0.156) | 4 | 1/32 (0.031) | 0.8 |
| More than 34 to 48 [850 to 1200], incl. | 3/16 (0.187) | 4.8 | 1/32 (0.031) | 0.8 |
MARKING REQUIREMENTS
The following marks will apply to each pipe run (or beam for smaller diameters):
STEEL tubes ASTM A106 Grade B (or A, C)
ANSI Diameter and Schedule (10 to 160 and XXS)
Pipe length
Heat number
Hydrostatic test pressure or ECM
Weight/foot
Delivery time
Our factory has a high production capacity, the delivery time is 30 days for small quantities, or if you are in a hurry for that, we can organize and fulfill your shipment.
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