Stainless Steel Round

Description

Stainless steel round refers to solid long steel bars with a circular cross-section, which is widely used in various fields such as hardware, kitchenware, shipbuilding, petrochem)ical, machinery, medicine, food, power, energy, and aerospace.

Chemical Composition

The chemical composition of common stainless steel round grades is as follows:

Mechanical Properties

Taking 304L stainless steel round bar as an example, its mechanical properties are as follows:

• Yield strength: ≥205 N/mm²

• Tensile strength: ≥520 N/mm²

• Elongation: ≥40%

• Hardness: HB ≤187, HRB ≤90, HV ≤200

Standard Specifications

Popular Grades

•304 Stainless Steel Round Bar: It is the most widely used chromium-nickel stainless steel with good corrosion resistance, heat resistance, low-temperature strength and mechanical properties. It is suitable for various environments, and can be used in the production of equipment in chemical, acidic, fresh water, and salt water environments, as well as in the food and marine industries.

•316 Stainless Steel Round Bar: On the basis of 304, molybdenum is added, so its corrosion resistance, especially pitting corrosion resistance, is excellent. It is mainly used in the food industry and surgical equipment, and can be used in harsh conditions.

Popular Questions and Answers

Question: What is the difference between 304 and 304L stainless steel round bars?

Answer: The main difference is the carbon content. The carbon content of 304L is lower than that of 304. 304L is a variant of 304 stainless steel with a lower carbon content, which is used in welding occasions to minimize the precipitation of carbides in the heat-affected zone near the weld and reduce the risk of intergranular corrosion.

Question: Why is 316 stainless steel round bar more corrosion resistant than 304?

Answer: Because 316 stainless steel round bar adds molybdenum on the basis of 304, the addition of molybdenum makes its corrosion resistance, especially pitting corrosion resistance, much better than 304, and it can be used in more harsh corrosive environments.

Question: How to choose the appropriate stainless steel round bar grade?

Answer: It needs to be selected according to the specific application environment and requirements. If it is used in a general environment with low corrosion requirements, 304 stainless steel round bar can be selected; if it is used in a harsh corrosive environment, such as in the chemical and marine industries, 316 stainless steel round bar or other high-corrosion-resistant grades can be selected; if welding is required, 304L and other low-carbon grades can be considered to reduce the risk of intergranular corrosion near the weld.