Ship Building Seamless Carbon Steel Pipe , ASTM A106 Grade B Pipe Hot Rolled / Cold Drawn
ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids and gases that exhibit higher temperatures and pressure levels.
ASTM A106 Seamless Pressure Pipe (also known as ASME SA106 pipe) covers seamless carbon steel nominal wall pipe for high-temperature service. Suitable for bending, flanging and similar forming operations.
For OD>325mm, we use cold drawn method; for OD<325mm, we use hot rolled method.
1. Standards:
ASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
2. Application:
Oil, Gas and water delivery;
Refinery, Boiler and Mechanical equipment manufacture;
Structure construction; drilling, ship building and etc.
3. Ordering Information
Quantity (feet, meters, or number of lengths),
Name of material (seamless carbon steel pipe),
Grade (Grade A, Grade B, Grade C),
Manufacture (hot-finished or cold-drawn),
Size (NPS/DN and weight class or schedule number, or both; outside diameter and nominal wall thickness; or inside diameter and nominal wall thickness),
Special outside diameter tolerance pipe,
Inside diameter tolerance pipe, over 10 in, (250mm) ID.
Length (specific or random),
Optional requirements,
Test report required,
Special requirements.
4. Chemical Requirements
| Chemical Requirements |
| Grade | Composition, % |
| C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V |
| max | max | max | min | maxC | maxC | maxC | maxC | maxC |
| Grade A | 0.25A | 0.27–0.93 | 0.035 | 0.035 | 0.1 | 0.4 | 0.4 | 0.15 | 0.4 | 0.08 |
| Grade B | 0.3B | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.4 | 0.15 | 0.4 | 0.08 |
| Grade C | 0.35B | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.4 | 0.15 | 0.4 | 0.08 |
A For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.
B Unless otherwise specified by the purchaser, for each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.65%.
C These five elements combined shall not exceed 1%.
5. Mechanical Properties
| Mechanical Properties |
| Grade |
| | A | B | C |
| Tensile strength, min: | | | |
| ksi | 48 | 60 | 70 |
| Mpa | 330 | 415 | 485 |
| Yield strength, min: | | | |
| ksi | 30 | 35 | 40 |
| MPa | 205 | 240 | 275 |
6. Manufacturing Process
Raw Material Inspection → Cold Centering → Heating → Piercing & Rolling → SIzing → Heat Treatment → Testing → Finishing → NDE → Visual & Dimension Inspection → Marking → Storing & Shipping
7. Available Size Range
| OD | Thickness |
| mm | inch | mm | SCH |
| 88.9~1422 | 3''~ 56'' | 2.11~140 | ≥SCH10 |
| *If the steel grades and size you are looking for are not listed above, please contact us for further information. |
8. Heat Treatment
Hot-finished pipe need not be heat treated. Cold-drawn pipe shall be heat treated after the final cold draw pass at a temperature of 1200°F(650°C) or higher.
9. Supplementary Requirements
S1 Product Analysis
S2 Transverse Tension Test
S3 Flattening Test, Standard
S4 Flattening Test, Enhanced
S5 Metal Structure and Etching Test
S6 Carbon Equivalent
S7 Heat Treated Test Specimens
S8 Internal Cleanliness-Government Orders
S9 Requirements for Carbon Steel Pipe for Hydrofluoric Acid Alkylation Service
Please contact us for your full range of tailored material to your specification and design. Our rolling mill is designed and equipped with state of the art facilities to pocess special strength on non-nominal sizes and material tailor made for your unique project design. We are flexbile on small quantity and various sizes in one order.
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