1.4541 vs 1.4301 stianless steel: performance differences
Jun 30, 2025
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What is the equivalent of SS 1.4301?
The equivalent of stainless steel 1.4301 is AISI 304 (American Iron and Steel Institute grade 304). It is also commonly known as X5CrNi18-10 under the European EN standard.
What is equivalent material 1.4541?
The material AISI 321 is an austenitic stainless steel that is also known under the designations 1.4541, Alloy 321, BS 321S31, BS 321S51 and X6CrNiTi18-10. The material has been stabilised by the addition of titanium and is characterised by good corrosion resistance (PREN value 17.0 to 19.0).
1.4301 vs. 1.4541 Stainless Steel: Chemical Composition
| Property | 1.4541 (AISI 321) | 1.4301 (AISI 304) |
|---|---|---|
| Chemical Composition (%) | ||
| Carbon (C) | ≤ 0.08 | ≤ 0.07 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 |
| Chromium (Cr) | 17.00 – 19.00 | 17.00 – 19.00 |
| Nickel (Ni) | 9.00 – 13.00 | 8.00 – 10.50 |
| Titanium (Ti) | Min. 0.70 (Titanium stabilized) | Not present |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 |
1.4301 vs. 1.4541 Stainless Steel: Mechanical Properties
| Property | 1.4301 (AISI 304) | 1.4541 (AISI 321) |
|---|---|---|
| Tensile Strength (MPa) | ≥ 520 | ≥ 500 |
| Yield Strength (MPa) | ≥ 210 | ≥ 200 |
| Elongation (%) | ≥ 45 | ≥ 40 |
| Hardness (HB) | ≤ 215 | ≤ 215 |
What is the difference between 1.4301 and 1.4541?
1. Corrosion resistance
1.4541 stainless steel has titanium added (Ti≥5×C), which preferentially combines with carbon to form TiC at high temperatures, avoiding the precipitation of Cr23C6 at grain boundaries and causing chromium depletion. It can resist intergranular corrosion without solution treatment (such as qualified by ASTM A262 E method), and is suitable for sensitization temperature range of 450-850℃ (such as high temperature conditions after welding)
while 1.4301 does not add stabilizing elements, and solution treatment is required after welding to prevent intergranular corrosion, otherwise intergranular corrosion is prone to occur at sensitization temperature.
High temperature performance
1.4301 stainless steel is suitable for intermittent use temperatures up to about 870°C, but carbide precipitation is prone to occur between 425°C and 860°C, thereby reducing mechanical properties and corrosion resistance.
1.4541 stainless steel Designed for high temperature applications, it maintains strength and resists creep and intergranular corrosion up to approximately 900°C, making it an ideal choice for heat exchangers, exhaust systems and furnace components.
Weldability
1.4301 stainless steel is easy to weld, but requires careful post-weld heat treatment or the use of a low-carbon variant such as 1.4306 to prevent sensitization.
1.4541 stainless steel has excellent weldability at high temperatures due to the stabilization effect of titanium, and no post-weld heat treatment is required.
Heat treatment
1.4541 stainless steel: Annealing temperature is usually 980–1,100°C, and rapid cooling is used to maintain the structure stability. Suitable for high temperature working environment, no additional aging treatment is required.
1.4301 stainless steel: Conventional annealing temperature is 1,040–1,100°C, followed by rapid cooling to avoid carbide precipitation. Suitable for room temperature and medium temperature environment.
We offer 321 in standard product forms including tubes, pipes, plates, strips, sheets, round bars, flat bars, forgings, hexagonal bars and wires. These products are available in a wide variety of sizes. For detailed specifications and product information, please visit the following website.
Products:https://www.stainless-steels.com/
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