ASTM A106 Grade B Specification Comprehensive Analysis

ASTM A106 Grade B steel pipe is an industrial seamless carbon pipe standard used in high temperature and pressure environments, because of its special properties, ASTM A106 steel pipe can only be produced seamlessly.

ASTM A106 Grade B steel pipe includes A, B, C three grades, of which ASTM A106 Gr. B is the most commonly used and most favored by suppliers.

In general, to recover ferrite, ASTM A106-B material need to be solute annealed according to the hot-rolled treatment used.

ASTM A106 Specification

High temperature resistance

1. Grade A
Withstand temperature: usually suitable for temperatures up to 300°F (approx. 149°C).
Material characteristics: low strength, suitable for ordinary occasions.
2. Grade B
Temperature resistance: suitable for temperatures up to 400°F (about 204°C).
Material characteristics: has certain strength and toughness, suitable for most industrial applications.
3. Grade C
Temperature resistance: can withstand temperatures up to). 750°F (about 399°C）
Material characteristics: has higher strength, suitable for high temperature and high pressure application environments.

Pressure resistance

1. Grade A
Commonly used in low pressure environments, the pressure resistance capacity is different depending on the wall thickness and pipe diameter, but it is lower than other grades.
2. Grade B
The most commonly used grade, medium strength, pressure resistance range is usually 800 PSI (about 55.2 bar) to 1500 PSI (about 103.4 bar), depending on the pipe specifications.
3. Grade C
It has the highest strength among the three grades and is suitable for extreme environments such as high temperature and high pressure. It usually has higher pressure resistance than international standards.