What is the difference between 1.4541 and 1.4542 stainless steel?
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What material is 1.4541 equivalent to?
Material 1.4541, also known as AISI 321, is a titanium-stabilized austenitic stainless steel known for its excellent resistance to intergranular corrosion, good high-temperature strength, and good oxidation resistance up to 900°C in air. Key characteristics include its good weldability, ductility, and toughness at both high and cryogenic temperatures. It is used in applications such as automotive exhaust systems, heat exchangers, and in the chemical, food, and aerospace industries.
What material is 1.4542 equivalent to?
630 stainless steel is one of the newest stainless steel grade found in 1960s. This grade is written as 1.4542 or X5CrNiCuNb16-4 or 17-4 PH according to EN norm and it is written as UNS S17400 according to UNS norm.It combines excellent corrosion resistance with high strength and hardness, achieved through heat treatment, making it suitable for applications in the aerospace, chemical, and medical industries, among others.
What is the difference between 1.4541 and 1.4542 stainless steel?
The main difference is that 1.4541 is a stabilized austenitic stainless steel, while 1.4542 is a precipitation-hardening martensitic stainless steel. This means 1.4541 is primarily used for welded structures in moderate environments and offers good resistance to intergranular corrosion at high temperatures, whereas 1.4542 is used for high-strength applications like gears and turbine blades, achieving its strength through heat treatment.
1.4541 vs.1.4542 stainless steel： Chemical Composition:
| Element | 1.4541 (AISI 321) | 1.4542 (AISI 329) |
|---|---|---|
| Carbon (C) | ≤ 0.08% | ≤ 0.08% |
| Chromium (Cr) | 17.0-19.0% | 26.0-30.0% |
| Nickel (Ni) | 9.0-12.0% | 3.5-5.5% |
| Molybdenum (Mo) | - | 1.0-2.5% |
| Titanium (Ti) | 4 x C (0.50%-1.00%) | - |
| Manganese (Mn) | ≤ 2.0% | 2.0-4.0% |
| Silicon (Si) | ≤ 1.0% | ≤ 1.0% |
| Phosphorus (P) | ≤ 0.045% | ≤ 0.045% |
| Sulfur (S) | ≤ 0.03% | ≤ 0.03% |
| Iron (Fe) | Balance | Balance |
1.4541 vs.1.4542 stainless steel：Mechanical Properties:
| Property | 1.4541 (AISI 321) | 1.4542 (AISI 329) |
|---|---|---|
| Tensile Strength | 500-700 MPa | 550-800 MPa |
| Yield Strength | ≥ 210 MPa | ≥ 250 MPa |
| Elongation | ≥ 40% | ≥ 30% |
| Hardness | ≤ 200 HB | ≤ 230 HB |
| Impact Toughness | Good | Good |
| Thermal Conductivity | 16 W/(m·K) | 16 W/(m·K) |
| Specific Gravity | 7.99 g/cm³ | 7.90 g/cm³ |
1.4541 Vs.1.4542 Stainless Steel: High Temperature Resistance
1.4541 is more suitable for high-temperature applications because its austenitic structure provides good high-temperature strength and oxidation resistance up to 900°C. 1.4542, on the other hand, is a precipitation-hardening martensitic steel not designed for sustained high-temperature use. It is best suited for applications requiring high strength even after heat treatment at around 480°C. Therefore, 1.4541 is the best choice in terms of high-temperature resistance.
Are 1.4541 and 1.4542 magnetic?
Both are essentially non-magnetic in the annealed condition. Slight magnetism may appear after cold working.
What is the difference between 1.4541 and 1.4301 material?
1.4301 stainless steel is low carbon chromium nickel stainless and heat resisting steel somewhat superior to Type 302 in corrosion resistance. 1.4541 stainless steel is known as stabilized grades of stainless steel, is Chromium nickel steel containing titanium.
What is the difference between 1.4541 and 1.4571 material?
The main difference is that 1.4541 (AISI 321) is a titanium-stabilized stainless steel based on 1.4301 (AISI 304), while 1.4571 (AISI 316Ti) is a molybdenum-containing 1.4404 (AISI 316L) grade that is also stabilized with titanium. This means 1.4571 has additional molybdenum for enhanced corrosion resistance, making it a better choice in chloride-rich environments, while 1.4541 is a more basic, cost-effective option for high-temperature applications where molybdenum is not critical.
1.4541 stainless steel price per kg
| Product Type | Material | Thickness / Diameter | Approx. Price (USD/kg) | Remarks |
|---|---|---|---|---|
| Stainless Steel Sheet / Plate | 1.4541 | 1 – 50 mm | $5 – $8 | Hot-rolled or cold-rolled |
| Stainless Steel Sheet / Plate | 1.4542 | 1 – 50 mm | $6 – $9 | Hot-rolled, high-temp service |
| Tubes / Pipes | 1.4541 | OD 10 – 200 mm | $7 – $10 | Seamless or welded |
| Tubes / Pipes | 1.4542 | OD 10 – 200 mm | $8 – $12 | High-temperature boiler / superheater |
Tip: Purchase from certified suppliers to ensure material quality, chemical composition, and traceable certificates (MTC / 3.1 / 3.2).
Why Choose Gnee as Your Supplier?
✅ Over 18 years of experience supplying high-temperature stainless steel
✅ ISO, SGS, BV certified 1.4541 and 1.4542 stainless steel
✅ Wide stock of sheets, plates, tubes, and bars
✅ Custom cut-to-length, polishing, and fabrication services
✅ Fast delivery within 7–15 days, worldwide shipping
✅ Technical support for material selection, heat treatment, and corrosion resistance
Email: info@gneestainless.com
