Core products: high-precision aluminum tubes, wear-resistant mandrels, high-strength seamless aluminum tubes, aluminum sheets and coils in various specifications, anti-corrosion corrugated aluminum sheets, industrial-grade aluminum rods, and customized aluminum profiles.
Welcome to the official website of Tianjin Tianxin Metal Materials Co., Ltd.!
What is the difference between 202 stainless steel and 304 stainless steel?
Release Date:
2024-08-28
Author:
202 stainless steel and 304 stainless steel are both austenitic stainless steels at their core, non-magnetic, and visually quite similar. However, the key difference lies in their nickel content, which results in significant variations in their mechanical properties and price.
202 stainless steel coil is essentially part of the 200 series, with a Chinese national standard grade of 1Cr18Mn8Ni5N. The 200-series 304 stainless steel is a low‑nickel, high‑manganese variant of 304 stainless steel, containing approximately 8% nickel and 8% manganese, making it a nickel‑based 304 stainless steel. Its chemical composition includes iron, manganese, aluminum, sodium, carbon, limestone, carbon dioxide, bromine, and other elements, with a density of 7.938 kg/dm³. Both 202 and 304 stainless steels typically have nickel contents below 4% and manganese contents around 8%, classifying them as low‑nickel, high‑manganese 304 stainless steels. These grades are widely used in architectural and decorative applications, such as road guardrails, hotel amenities, shopping malls, glass staircases, and community facilities.
202 stainless steel and 304 stainless steel are both austenitic stainless steels at their core, non-magnetic, and visually quite similar. However, the key difference lies in their nickel content, which results in significant variations in their mechanical properties and price.
The difference between 202 and 304 lies in their distinct chemical compositions, varying corrosion resistance, and different application areas.
1. Different chemical compositions: 202 stainless steel contains approximately 4% nickel and about 8% manganese, whereas 304 stainless steel contains roughly 8% nickel and more than 18% chromium.
2. Different corrosion resistance: 304 stainless steel coil has a higher chromium content than 202, so its corrosion resistance is also superior to that of 202.
3. The applicable fields differ: 304 is primarily used in food processing, warehousing and transportation, medical devices, household goods, automotive components, glass tubing, and more; whereas 202 is widely employed in architectural and decorative materials, community facilities, highway engineering, road guardrails, shopping malls, glass staircases, and other areas.
Due to differences in nickel content, 202 stainless steel is significantly less expensive than 304 stainless steel, leading to instances of 202 being falsely marketed as 304. It should be noted that 200-series stainless steels fall far short of the 300 series in both corrosion resistance and toughness; improper purchase or use can pose serious safety risks.
|
C |
Is |
Manganese |
P |
S |
Ni |
Chromium |
|
|
202 |
≤0.15 |
≤1.0 |
≤7.5~10.0 |
≤0.060 |
≤0.03 |
4.00~6.00 |
17.0~19.0 |
|
304 |
≤ 0.08 |
≤ 1.00 |
≤2.00 |
≤ 0.045 |
≤ 0.03 |
8.0-11.0 |
8.0-11.0 |
Next article
News Comments
Please provide your contact information and requirements, and we will arrange for a specialist to get in touch with you!
Latest Updates
Let us introduce you to what aluminum tubing is.
Aluminum tubing typically refers to pipes made from aluminum alloys. Aluminum alloys are materials composed of aluminum combined with other metallic elements, characterized by their light weight, high strength, and excellent corrosion resistance, making them widely used across various industries.
Aluminum tubes are mainly classified into the following types.
Classified by precision: ordinary aluminum tubes and precision aluminum tubes; the latter typically undergo secondary processes such as cold drawing and rolling after extrusion.
With the rapid growth of the new‑energy vehicle industry, automotive thermal management systems are confronting entirely new challenges and opportunities. In this field, aluminum tubing, thanks to its superior performance and broad range of applications, has steadily emerged as an unsung leader in thermal management for new‑energy vehicles, providing robust support for enhanced vehicle performance and safe operation.
Production and Manufacturing of Aluminum Tubes
Aluminum tubes are classified into four main types based on their forming process: hot-extruded aluminum tubes (the mainstream), cold-drawn and precision-rolled aluminum tubes, welded aluminum tubes, and impact-extruded pharmaceutical aluminum tubes. Among these, the most widely used in the industry is seamless or split‑die extruded aluminum tubing.
What is the difference between 409 stainless steel and 430 stainless steel?
Compared with ordinary low‑carbon steel, 409 stainless steel sheet exhibits poorer thermal conductivity and lower elongation; consequently, greater deformation forces are required during shearing and bending. For 321 stainless steel sheet, springback during bending is more pronounced than in carbon steel. Moreover, since the elongation of stainless steel sheet is lower than that of carbon steel, the bend radius R of the workpiece should be larger than that for carbon steel during bending operations; otherwise, cracking is likely to occur.
What is the difference between 202 stainless steel and 304 stainless steel?
202 stainless steel and 304 stainless steel are both austenitic stainless steels at their core, non-magnetic, and visually quite similar. However, the key difference lies in their nickel content, which results in significant variations in their mechanical properties and price.
Factory Address: Liaocheng City, Shandong Province, China
Get a quote
By entering your email address, you agree to receive marketing communications from Tianxin Metal Materials, and you may unsubscribe at any time.
All content
Close