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Key Applications of 30CrNiMo8 Steel

Key Applications of 30CrNiMo8 SteelKey Applications of 30CrNiMo8 Steel

Introduction

30CrNiMo8 steel is celebrated for its exceptional hardness, strength, and durability. These properties make it highly sought after across various industries. In this article, we delve into the key applications of 30CrNiMo8 steel, highlighting its versatility and reliability.

Automotive Industry

  • Crankshafts and Camshafts

30CrNiMo8 steel is extensively used in the automotive industry, particularly in the production of crankshafts and camshafts. These components are critical for engine performance, requiring materials that can withstand high stress and wear. The high hardness and toughness of 30CrNiMo8 steel ensure these parts can handle intense operating conditions without compromising durability.

Case Study: Johnson Auto Parts

Johnson Auto Parts has switched to using 30CrNiMo8 steel for their high-performance crankshafts. According to CEO Mr. Johnson, “Our crankshafts made from 30CrNiMo8 have shown remarkable durability, reducing wear-related failures and extending the life of our engines.”

  • Heavy-Duty Axles

For heavy-duty vehicles, axles made from 30CrNiMo8 steel provide the necessary strength and resilience. These axles are crucial for handling the load and stress of large trucks and machinery, making 30CrNiMo8 the ideal choice.

Aerospace Industry

  • Landing Gear Components

The aerospace industry demands materials that can withstand extreme conditions, including high stress and varying temperatures. 30CrNiMo8 steel is used in landing gear components, where its toughness and strength are essential for safety and reliability.

Case Study: AeroTech Ltd.

AeroTech Ltd. uses 30CrNiMo8 steel for their landing gear systems. Production manager Ms. Smith says, “30CrNiMo8 has enabled us to meet stringent aerospace standards and enhance the durability of our landing gear, providing greater safety for our aircraft.”

  • High-Strength Fasteners

High-strength fasteners made from 30CrNiMo8 steel are vital in aerospace applications. They provide secure and reliable connections that can withstand the high loads and stresses encountered during flight.

Oil and Gas Industry

  • Drill Bits and Tools

In the oil and gas industry, drill bits and tools made from 30CrNiMo8 steel are essential for drilling operations. The steel’s high hardness and wear resistance make it perfect for cutting through tough geological formations.

  • Valves and Fittings

Valves and fittings in the oil and gas sector must endure high pressures and corrosive environments. 30CrNiMo8 steel’s durability and resistance to wear make it an excellent material for these components, ensuring long-lasting performance and safety.

Heavy Machinery and Construction

  • Gears and Gear Shafts

Gears and gear shafts made from 30CrNiMo8 steel are commonly used in heavy machinery and construction equipment. The steel’s ability to maintain its hardness and strength under heavy loads ensures reliable operation and longevity.

  • Hydraulic Components

Hydraulic systems rely on components that can withstand high pressure and stress. 30CrNiMo8 steel is used to manufacture hydraulic pistons and cylinders, providing the necessary durability and performance for demanding applications.

Marine Industry

  • Propeller Shafts

In the marine industry, propeller shafts made from 30CrNiMo8 steel offer excellent corrosion resistance and durability. These shafts must endure harsh marine environments while maintaining their structural integrity and performance.

  • Rudder Stocks

Rudder stocks, essential for steering ships, benefit from the toughness and strength of 30CrNiMo8 steel. This ensures reliable performance and longevity, even in challenging sea conditions.

Key Applications of 30CrNiMo8 Steel

30CrNiMo8 steel’s unique combination of hardness, toughness, and machinability makes it an ideal choice for a wide range of applications. From automotive and aerospace to oil and gas, heavy machinery, and marine industries, this steel meets the demanding requirements of each sector. At OTAI, we are proud to supply high-quality 30CrNiMo8 steel, offering extensive stock and custom solutions to meet your specific needs. Contact us today to learn more about how 30CrNiMo8 steel can enhance your projects with its superior performance and reliability.

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Thousand tons 30CrNiMo8 stocking

Thousand tons 30CrNiMo8 stocking

30CrNiMo8 steel is German DIN standard in Q+T (quenched and tempered steel), equivalent to 30cr2ni2mo in China.

30crnimo8 material has high yield strength, tensile strength and fatigue strength, and sufficient plasticity and toughness.

Generally, EAF and BOF are used for smelting, and secondary refining, electroslag remelting or vacuum treatment, vacuum induction furnace smelting or double vacuum smelting and appropriate heat treatment are adopted for those with high requirements.

The material 30CrNiMo8 is difficult to machine. 30CrNiMo8 to achieve hrb80 below is very difficult, generally do about hrb85 can.

 

 30crnimo8 equivalent grade

EN 30CrNiMo8 – 1.6580
0.26 – 0.34 0.3 – 0.6 <0.4 <0.025 <0.035 1.8 – 2.2 1.8 – 2.2 0.3 – 0.5
PN 30H2N2M
0.26 – 0.34 0.3 – 0.6 0.17 – 0.37 <0.035 <0.035 1.8 – 2.1 1.8 – 2.1 0.25 – 0.35 <0.2
NF 30CND8 / 30NCD8
0.26 – 0.33 0.3 – 0.6 0.1 – 0.4 <0.030 <0.025 1.8 – 2.2 1.8 – 2.2 0.3 – 0.5

 

30crnimo8 steel properties

30CrNiMo8 steel belongs to DIN alloy structure tempered steel, which has high yield strength, tensile strength, and enough plasticity and toughness. The critical temperature of Ac3 in 30crnimo8 heat treatment is 800℃, and the quenching temperature is Ac3+(30 ~ 70)℃. After comprehensive consideration, the process was determined as follows: normalizing 880℃, holding heat for 5h; The quenching temperature is 840 ~ 860℃, and the holding time is 4 ~ 4.5h. Water quenching oil is used for quenching and tempering temperature is 570 ~ 620℃. The tempering time should not only ensure that the tissue transformation can be fully carried out through through burning, but also try to eliminate the residual stress.

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