What is 1.4021 Steel?
DIN 1.4021 steel, also known as DIN 1.4021 stainless steel, is a martensitic stainless steel grade renowned for its high chrome content. It boasts a perfect blend of strength, hardness, and corrosion resistance, making it ideal for a wide range of industrial applications. This steel grade offers a unique combination of wear resistance and moderate corrosion resistance, thereby serving as a versatile material in manufacturing.
Supply Range of Wr. 1.4021
The supply range for 1.4021 varies across forms such as round bars and steel plates. Specifically, round bars are available in sizes ranging from 10mm to 250mm in diameter, while steel plates come in thicknesses from 5mm to 150mm. This diversity in size ensures that 1.4021 stainless can meet various industrial requirements, from precision parts to larger structural components.
Relevant 1.4021 Specification and Equivalent Steel Grades
| Specification | Steel Grade |
|---|---|
| DIN EN 10088-3 | 1.4021 |
| ASTM A276 | AISI 420 |
| JIS G4303 | SUS420J1 |
These equivalents highlight 1.4021 stainless’s versatility and comparability with other steel grades globally.
1.4021 Steel Chemical Composition and Equivalent’s Chemical Composition
| Grades | C | Si | Mn | P | S | Cr |
|---|---|---|---|---|---|---|
| 1.4021 (%) | 0.16 – 0.25 | ≤ 1.00 | ≤ 1.50 | ≤ 0.040 | ≤ 0.030 | 12.00 – 14.00 |
| AISI 420 (%) | min 0.15 | ≤ 1.00 | ≤ 1.00 | ≤ 0.040 | ≤ 0.030 | 12.00 – 14.00 |
| SUS420J1 (%) | 0.16 – 0.25 | ≤ 1.00 | ≤ 1.00 | ≤ 0.040 | ≤ 0.030 | 12.00 – 14.00 |
1.4021 Steel Properties
1.4021 stainless steel is known for its hardness, typically reaching up to 52 HRC after heat treatment. This steel grade also exhibits good toughness and is capable of resisting corrosion in mild environments. Its martensitic structure contributes to its high strength and durability, making it suitable for applications requiring a balance of mechanical properties and corrosion resistance.
Forging of 1.4021 Steel
Forging 1.4021 stainless steel should be done between 1100°C to 800°C, followed by air or oil quenching. This process enhances its mechanical properties and structural integrity, making the steel more suitable for challenging applications.
Heat Treatment of 1.4021 Tool Steel
Heat treatment techniques such as annealing, quenching, and tempering are crucial for achieving the desired mechanical properties in 1.4021 stainless steel. Annealing at 745°C to 825°C followed by slow cooling, quenching from 950°C to 1050°C, and tempering at 100°C to 400°C are recommended practices to optimize its performance.
Application of 1.4021 Tool Steel
1.4021 steel finds its applications in cutlery, surgical instruments, pump shafts, and valves. Its balance of wear resistance and corrosion resistance makes it an ideal choice for manufacturing components exposed to mildly corrosive environments and where high strength is required.
Why Choose Otai for 1.4021 Stainless Steel
Choosing Otai for your 1.4021 needs means opting for quality and reliability. We are ISO 9001 certified, ensuring our products meet the highest quality standards. Our stock availability, competitive pricing, flexible payment terms, and skilled sales teams position us as a leading supplier in the market. We are committed to providing tailored solutions to meet your specific requirements for 1.4021 stainless steel.
In conclusion, 1.4021 stainless steel is a versatile and reliable material choice for various industrial applications. Its unique combination of hardness, strength, and corrosion resistance ensures it meets the rigorous demands of today’s manufacturing needs. For inquiries and more information, reach out to us at Otai Special Steel, and let us assist you in finding the perfect steel solution for your project.
FAQs about 1.4021 stainless material
- What industries commonly use 1.4021? Industries such as cutlery manufacturing, medical instruments, and mechanical engineering frequently use 1.4021 material for its balance of mechanical properties and corrosion resistance.
- Can 1.4021 stainless be welded? Yes, but with caution due to its hardening capability. Preheating and post-weld heat treatment are recommended.
- How does 1.4021 stainless steel compare to other stainless steels in terms of corrosion resistance? 1.4021 offers moderate corrosion resistance, suitable for mild environments, but not as high as austenitic stainless steels.
- Is 1.4021 steel magnetic? Yes, due to its martensitic structure, 1.4021 is magnetic.
- How can I ensure the longevity of 1.4021 material products? Proper maintenance, including regular cleaning and avoiding exposure to harsh chemicals, can help extend the life of 1.4021 steel products.
