Jiangsu Zhonggongte Metallurgical Technology Co., Ltd.
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Stock 304L Stainless Steel Round Bar Corrosion Resistant S30403 Bright Stainless Steel Round Bar
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Product Description
304L stainless steel, also known as ultra-low carbon stainless steel, is a versatile stainless steel material that is widely used in the manufacture of equipment and parts that require good comprehensive properties (corrosion resistance and formability).
Analysis of 304L stainless steel chemical composition%
Carbon C: ≤0.03,
Silicon Si: ≤1.0,
Manganese Mn: ≤2.0,
Chromium Cr: 18.0～20.0,
Nickel Ni: 8.0～12.0,
Sulfur S: ≤0.03,
Phosphorus P: ≤0.045;
| C | Si | Mn | Cr | Ni | S | P |
| ≤0.03 | ≤1.0 | ≤2.0 | 18.0～20.0 | 8.0～12.0 | ≤0.03 | ≤0.045 |
Mechanical properties
Mechanical properties of 304L stainless steel:
Yield strength (N/mm2) ≥205
Tensile strength ≥520
Elongation (%) ≥40
Hardness HB ≤187 HRB ≤90 HV ≤200Density 7.93 g·cm-3
| Steel Grade | Density(g/cm3) |
| Grade | Density |
| 304,304L,305,321 201,202,301,302 | 7.93 |
| 316,316L,347 309S,310S | 7.98 |
| 405,410,420 | 7.75 |
| 409,430,434 | 7.7 |
Features
Corrosion resistance: 304L stainless steel has good corrosion resistance and can resist erosion by most common chemical media, including acids and alkalis. This material also shows good corrosion resistance in chlorine-containing environments and is suitable for occasions requiring high corrosion resistance, such as seawater treatment equipment.
High temperature performance: 304L stainless steel has good oxidation resistance and creep strength at high temperatures. It can be used in a temperature range of -196℃ to 800℃, which makes it suitable for applications under various temperature conditions.
Processing performance: 304L stainless steel has good cold working performance and can be used to manufacture components of various shapes and sizes. In terms of welding, 304L stainless steel has good weldability and is suitable for common welding processes, including arc welding, gas shielded welding, etc.
Low carbon content: The carbon content of 304L stainless steel is controlled below 0.03%, which helps to reduce the precipitation of carbides in the heat affected zone of welding, thereby reducing the risk of intergranular corrosion.
Heat treatment:
Solution treatment: usually carried out at 1010-1120℃, followed by rapid cooling to obtain the best organizational structure and performance.
In summary, 304L stainless steel is an important material in industrial manufacturing, construction and daily life due to its excellent performance and wide application. As long as it is properly stored and handled during use, operated in accordance with relevant regulations, and regularly inspected and maintained, its long-term and stable service life can be guaranteed.
Stainless steel types
304 is a general-purpose stainless steel that is widely used in the manufacture of equipment and parts that require good comprehensive properties (corrosion resistance and formability).
301 stainless steel exhibits obvious work hardening when deformed and is used in various occasions requiring higher strength.
302 stainless steel is essentially a variant of 304 stainless steel with a higher carbon content, which can be made stronger by cold rolling.
302B is a stainless steel with a higher silicon content, which has a higher resistance to high-temperature oxidation.
303 and 303Se are free-cutting stainless steels containing sulfur and selenium respectively, which are used in applications where free cutting and high surface finish are mainly required. 303Se stainless steel is also used to make parts that require hot upsetting because it has good hot workability under such conditions.
304L is a variant of 304 stainless steel with a lower carbon content, which is used in applications requiring welding. The lower carbon content minimizes the precipitation of carbides in the heat-affected zone near the weld, which may cause intergranular corrosion (weld erosion) of stainless steel in certain environments.
304N is a nitrogen-containing stainless steel, and nitrogen is added to increase the strength of the steel.
305 and 384 stainless steels contain higher nickel content and have lower work hardening rates, making them suitable for various occasions that require high cold formability.
308 stainless steel is used to make welding rods.
309, 310, 314 and 330 stainless steels all have higher nickel and chromium content in order to improve the oxidation resistance and creep strength of the steel at high temperatures. 309S and 310S are variants of 309 and 310 stainless steels, the only difference being that the carbon content is lower in order to minimize the precipitation of carbides near the weld. 330 stainless steel has particularly high resistance to carburization and thermal shock.
316 and 317 stainless steels contain molybdenum, so their pitting corrosion resistance in marine and chemical industrial environments is much better than that of 304 stainless steel. Among them, 316 stainless steel consists of variants including low-carbon stainless steel 316L, high-strength stainless steel containing nitrogen.
316N and free-cutting stainless steel 316F with a high sulfur content.
321, 347 and 348 are stainless steels stabilized with titanium, niobium, tantalum and niobium respectively, suitable for welding components used at high temperatures. 348 is a stainless steel suitable for the nuclear power industry, with certain restrictions on the content of tantalum and niobium.
304L stainless steel has poor forging performance and is difficult to deform.
Due to the existence of work hardening phenomenon. The deformation during the mandrel drawing process cannot be too large. And the heat loss is large. Therefore, it must be formed under multiple fires. If the high temperature insulation stage is not handled well, coarse grains will be caused.
Frequently Asked Questions:
Q: What is the model of this stainless steel bar?
A: The models of this stainless steel bar are 304, 316, 304L and 316L 201.
Q: Where is this stainless steel bar made?
A: This stainless steel bar is made in China.
Q: What sizes are available for this stainless steel bar?
A: This stainless steel bar is available in a variety of sizes.
Q: Is this stainless steel bar corrosion-resistant?
A: Yes, this stainless steel bar is corrosion-resistant.