Although casing pipe and carrier pipe are similar in name, they are different in structure and function.

Angle steel, also known as angle iron or l shaped angle steel, is a long steel bar with two sides perpendicular to each other. The cross-section of angle steel is usually L-shaped, and it is usually made of hot rolling, cold drawing or welding.

Steel sheet pile is a type of steel with a lock. The cross-sections include linear, Z-shaped, U-shaped, H-shaped, hat-shaped, etc.

Boiler steel plates mainly refer to hot-rolled medium-thick plate materials used to manufacture superheaters, main steam pipes and boiler firebox heating surfaces.

The most fundamental difference between ASTM A53 Grade A and Grade B steel pipes is their mechanical properties, especially their minimum yield strength and tensile strength.This makes Grade B more suitable than Grade A for high pressure applications.

ASTM A795, A53 and A135 pipe are all steel pipes produced in accordance with the standards of the American Society for Testing and Materials (ASTM International). These three types of pipes can all be suitable for firefighting pipes and can also be produced by electric resistance welding, but they are slightly different.