ASTM A106 Gr B: properties, composition, uses and standards
ASTM A106 Gr B is a seamless carbon steel pipe for high-temperature service, chosen for high-temperature process and steam piping in refineries and power plants., density 7.85 g/cm³.
What is ASTM A106 Gr B?
ASTM A106 Gr B is a seamless carbon steel pipe for high-temperature service. Engineers choose it for high-temperature process and steam piping in refineries and power plants. It is also known as SA-106 Gr B, Seamless carbon steel pipe, UNS K03006.
- Designation
- ASTM A106 Gr B
- Also called
- SA-106 Gr B · Seamless carbon steel pipe · UNS K03006
- Standard
- ASTM A106 Grade B
- Density
- 7.85 g/cm³
- Melting range
- 1420 – 1530 °C
- Magnetic
- Magnetic
Chemical composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Phosphorus | As specified |
| Sulphur | As specified |
| Chromium | As specified |
| Copper | As specified |
| Nickel | As specified |
| Molybdenum | As specified |
| Vanadium | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A106 Grade B.
Mechanical properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A106 Grade B — condition per order.
Where ASTM A106 Gr B is used
- Refineries. Process and steam lines. Industry →
- Power plants. Steam and feedwater piping. Industry →
- Oil & gas. Plant piping and headers. Industry →
Welding A106 B
The matching filler is ER70S-6 / E7018. Preheat thick walls per the WPS.
ASTM A106 Gr B standards by product
Buying ASTM A106 Gr B: what to specify
- The product standard and the UNS or designation — for example ASTM A106 Gr B.
- Size, thickness or schedule, and quantity in pieces and kg or metres.
- Heat-treatment condition where the standard offers a choice.
- Certificate: EN 10204 3.1 or 3.2 available on request / as specified in the PO; ask for 3.2 if a third party must witness.