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Q345

Q345 steel is one kind of Chinese standardized low alloy, medium tensile strength steel made with a hot-rolling process, used for a number of manufacturing purposes.

Q345 steel VS Q235 steel, 2 good point

Q235 and Q345 both have the same chemical composition, both have the chemicals Carbon, Silicon, Manganese, Phosphorus and Sulfur.

Brief Introduction Of Low Alloy High Strength Steel 16Mn

The ratio of the main constituent elements of Q345 steel is basically the same as that of 16Mn steel.

Steel Material 16Mn vs Q345

The ratio of the main constituent elements of Q345 steel is basically the same as that of 16Mn steel.

What’s low alloy steel pipe?

Low alloy piping materials are often called chrome moly materials because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr).

Steel Pipe

Steel pipes are long and hollow tubes that are used for many different applications in a variety of places.

Quenching production process of Q345B seamless pipe

The improvement of the heat treatment method of Q345B ms seamless pipe is accompanied by the increase of the quenching temperature, and the quenching strength is gradually increased.

Classification of square steel pipe

Square pipe is a name for square pipe and rectangular pipe, that is, steel pipe with equal and unequal side lengths.

16Mn

16Mn Steel is a carbon-manganese steel, carbon content of 0.16%, the yield point is equal to 343MPa (strength level belonging to 343MPa).

Q345

Q345 is a low alloy steel material commonly used in motor vehicles, bridges, ships, and construction.

Q355 steel is a Chinese low alloy high strength structural steel, which replaced Q345, the material density is 7.85 g/cm3. According to GB/T 1591 -2018, Q355 has 3 quality levels: Q355B, Q355C and Q355D. “Q” is the first letter of Chinese Pinyin: “qu fu dian”, which means Yield Strength, “355” is the minimum value of yield strength 355 MPa for steel thickness ≤16mm, and tensile strength is 470-630 Mpa.