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Steel Angles are the most basic type of roll-formed steel. They are formed by bending a single angle in a piece of steel.

EN 10297-1 Seamless Mechanical Tubes is mainly applicable to non-alloy and alloy steel tubes for mechanical and general engineering purposes.

ASTM A334 is a forged seamless carbon steel pipe that is one of the standard specifications for cryogenic applications.

ASTM A333 and ASTM A334 are both specifications for seamless and welded carbon and alloy steel pipes used for low-temperature service. Specifically, ASTM A333 covers a range of steel grades suitable for temperatures as low as -50°F (-45°C), while ASTM A334 is intended for temperatures as low as -150°F (-101°C).