30CrNi4Mo steel is a high pure alloy structural steel bars for aviation. It shall be melt by EAF+ESR method to ensure the high pure quality. This steel material 30CrNi4Mo is on GB standard steel material. Otai is the leading supplier of 30CrNi4Mo alloy steel material with best price and quality.
Supply Range of 30CrNi4Mo Steel Material
Round Bar: Φ1mm~300mm, some customer prefer to use small diameter wire for special use, like 4mm steel wire.
Condition: hot rolled, forged or cold drawn condition
Surface: black surface, peeled or cold drawn surface
Specifications and Equivalent Steel Grades
30CrNi4Mo is one of steel grades in GJB 6487 standard. There are other close steel grades in the same standard, such as 30CrNi3Mo, 40CrNi3Mo.
Chemical Composition
Here’s the chemial comparison of 30CrNi4Mo:
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Mo (％) | Ni(％) | Cu(％) |
| 0.26～0.34 | 0.10～0.35 | 0.45～0.70 | ≤0.025 | ≤0.020 | 1.10～1.40 | 0.20～0.35 | 3.90～4.30 | ≤0.020 |
Steel Properties of 30CrNi4Mo
- Usually for hot rolled and forged round bar 30CrNi4Mo, it’s delivered as annealed or high temperature normalized conditioin.
- The delivered hardness should be max. 285 HBW.
- For Q+T condition, the mechanical properties apply as below:
| Tensile Strength | Non-proportional extension strength | A min. |
Izod impact |
| ≥1540 | ≥1130 | ≥8 | ≥20 |
Forging of GB 30CrNi4Mo Material
Forging 30CrNi4Mo material must be approached with precision to retain its mechanical properties. The forging process usually involves heating the steel to a certain temperature before it is shaped to the desired form. Details of the temperature ranges and forging techniques are vital to achieving the optimal structure of the steel.
Heat Treatment of 30CrNi4Mo Aviation Steel
Heat treatment processes such as annealing, normalizing, quenching, and tempering are integral to maximizing the steel’s potential. Each treatment serves a different purpose:
- Hot rolled or forged round bar, delivered in annealed condition or normalized condition
- Cold drawn bar, delivered in CR condition or annealed / normalized condition
Applications of 30CrNi4Mo Material
30CrNi4Mo alloy steel is versatile in its use, however, it’s designed mainly for high pure structural application in aviation industry. So, when there is special request for aviation,
30CrNi4Mo material is an alloy that offers an exceptional balance between toughness, strength, and resistance to wear. If you are in need of a reliable 30CrNi4Mo aviation steel supplier or have any questions about 30CrNi4Mo alloy steel price and its applications, do not hesitate to reach out to us via jeremy@otaisteel.com or connect with us instantly on WhatsApp at +8613610149979. We are committed to providing you with the highest quality steel with best price and cost saving solutions.
FAQs
1. What sets 30CrNi4Mo steel apart from other steel alloys?
30CrNi4Mo alloy steel is distinct for its high chromium, nickel, and molybdenum content, which grants it excellent strength and toughness. But most important is the high pure property makes 30CrNi4Mo different.
2. Can 30CrNi4Mo steel be customized into different shapes and sizes?
Absolutely, 30CrNi4Mo alloy steel can be customized into various shapes and sizes, according to the requirements of the project, however, it is usually delivered in round bar.
3. How does heat treatment affect the properties of 30CrNi4Mo material?
Heat treatment processes like annealing and tempering are crucial in enhancing the steel’s mechanical properties, such as its hardness, strength, and ductility.
4. What are the common applications of 30CrNi4Mo material?
30CrNi4Mo steel is commonly used in aviation industry, as parts or components or some special application.
5. How can I inquire about 30CrNi4Mo steel supply and prices?
For inquiries on 30CrNi4Mo material supply and pricing, please contact us at jeremy@otaisteel.com or via WhatsApp at +8613610149979. We offer competitive pricing and comprehensive support for all your steel material needs.
