JFE Everhard 450 Wear Resistant Steel Plate

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NM450

JFE-EH450

HARDOX 450

DILLIDUR 450V

RAEX 450

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What kind of steel is JFE-EH450?

Wear-resistant steel plate

What does the “450” in JFE-EH450 represent?

The “450” in JFE’s EH450 Steel Plate indicates that the minimum guaranteed Brinell hardness (HBW) of this wear-resistant steel plate is 450.

Which standard system does JFE-EH450 belong to?

PROPRIETARY – JFE-EH450 falls under the Japanese Industrial Standard (JIS) system.

What are the differences between JFE-EH450 and NM450, AR450, and Hardox 450?

JFE-EH450 Carbon Wear Resistant Steel Plate, NM450 and Hardox 450 are all 450HBW grade low-alloy quenched and tempered wear-resistant steels. The main differences lie in the origin brand, implementation standards and microstructure stability.

What domestic brand does JFE-EH450 correspond to?

NM450

Is JFE-EH450 a quenched and tempered steel or an ordinary wear-resistant steel?

High-performance wear-resistant steel plate

What thickness specifications does JFE-EH450 have?

Thickness range: 6 – 100 mm, Width: 1.2 – 2.5 m.

What is the maximum thickness that the JFE-EH450 can reach?

100mm,Can be customized to 120mm

What are the main chemical elements of JFE-EH450?

C : ≤0.25
Si : ≤0.55
Mn : ≤1.60
P : ≤0.030
S : ≤0.030
Cr : ≤0.80
Mo : ≤0.50
Ti : ≤0.020
B : ≤0.004
Fe : margin
 
What effect does the C content have on the hardness of JFE-EH450?
 
JFE EH-C450 An increase in carbon content enhances the strength and hardness of steel while reducing its plasticity.
 
What is the role of the Mn element in EH450?
 
Mn in JFE EH C450 Plates mainly plays the roles of enhancing quenching hardness, solid solution strengthening and refining the microstructure, ensuring uniform hardness of the thick plate section and maintaining high toughness.
 
How can the quality of EH450 be determined based on its chemical composition?
 
JFE EH C450 Steel Plates Chemical composition analysis.
 
Does JFE-EH450 contain boron (B) element?
 
YES
 
What is the JFE-EH450 Wear Plate carbon equivalent (Ceq)? What impact does it have on welding?
 
Common formula (recommended by IIW) ‌
 
:Ceq=C+Mn6+Cr+Mo+V5+Ni+Cu15
  • ‌Ceq ≤ 0.40%: Excellent weldability
  • 0.40% < Ceq ≤ 0.60%: Moderate weldability
  • Ceq > 0.60%: Poor weldability

Is the chemical composition stable across different batches of the JFE Everhard 450 Wear Resistant Steel Plate furnaces?

아니요

JFE-EH450 Mechanical Properties?

performance indexNumerical range/requirements
‌Brinell Hardness (HB)‌430~470
‌Yield strength (σ0.2)≥900~1100 MPa
‌Tensile strength (σb)‌1000~1150 MPa
‌Strain (A)‌≥10%
‌Impact toughness‌-20℃ or -40℃ 

Does the performance decline after the JFE Everhard 450 Wear Resistant Steel Plate thickness increases?

YES

How is the impact performance of JFE-EH450?

GOOD

How does the performance of JFE Everhard 450 Plate Suppliers in china fare in a low-temperature environment?

-40℃

Is JFE-EH 450 Wear Resistant Steel Plates mainly composed of martensite?

YES

Does the EH450 alloy contain bainite structure?

YES

How much higher is the wear resistance of JFE-EH450 compared to the ordinary Q355?

The wear resistance of JFE EH 450 Plates is approximately 3 to 5 times that of ordinary Q355.

Which has better wear resistance, EH450 or NM450?

The wear resistance of JFE EH 450 JFE China Wear Resistance is basically the same as that of NM450.

What are the differences in lifespan between EH450 and Hardox 450?

Under pure dry grinding conditions, the theoretical lifetimes are similar (with hardness both being approximately 450 HBW). However, in cases of corrosion wear or extreme impact conditions, Hardox 450 typically has a more stable and slightly longer actual service life due to its superior uniform toughness and process consistency.

Is JFE-EH450 Carbon Wear Tahan Steel Plate suitable for impact wear or sliding wear?

impact wear

How is the JFE-EH 450 Wear Resistant Steel Plates ability to withstand the wear caused by ores?

YES

What is the actual service life of the EJFE EVERHARD-C450LE Abrasion-Resistant Steel Plates?

The same sheet of material may last for 6 months in the mine chute, and can be used for more than 3 years in the low-wear conveying section.

Under what circumstances is EH450 not suitable for use?

JFE EVERHARD C450LE Plates Not suitable for use in strong corrosive media, long-term high temperature (>300℃), extremely high risk of impact fracture, and working conditions requiring extremely high corrosion resistance and wear resistance coupling.

How to increase the service life of the JFE-EH450 part?

Strictly control the processing heat input to prevent cracks and softening, optimize the structural design to reduce stress concentration, and standardize welding and post-maintenance procedures.

What is the production process of JFE-EH450?

The Jfe steel process involves steelmaking → continuous casting → heating → rolling → quenching + tempering (quenching and tempering) → finishing.

What kind of heat treatment process is adopted for the JFE-EH450 Carbon Wear Steel Plate?

Quenching + Tempering (quenching and tempering)

Why can the JFE-EH450 Carbon Wear Tahan Steel Plate Suppliers(JBLstainless) thick plate maintain its hardness even inside?

The key lies in the design of high-quenching alloy (containing elements such as Mn, B, Mo, etc.) combined with industrial-grade water quenching process, which ensures that the center of thick sections can also be rapidly cooled to form uniform martensite/bainite structure.

How does JFE control the plate shape and dimensional accuracy?

The JFE wear-resistant plate is controlled to shape through the Super-CR super control rolling technology, the frame-type ultra-fast cooling system, the CVC roller profile optimization and the high-precision feedback model. The dimensional accuracy is guaranteed by the precise rolling load distribution and the online thickness measurement closed loop.

What is the tolerance for JFE EH 450 thickness?

+0.8mm/0mm or ±0.3mm ~ ±0.5mm

In which industries is the JFE-EH450 mainly applied?

Mining machinery, construction machinery, material conveying equipment

Why choose JBL stainless JFE-EH450?

The reason for choosing the JFE-EH450 core lies in its high wear resistance of 430-470HB and its high strength and toughness with a yield strength of ≥ 900MPa. This significantly extends the service life of wear-prone components in construction machinery and reduces the total cost over the entire cycle.

Which is better, the Japanese JFE-EH450 or the domestic NM450?

For extreme conditions/high reliability, JFE-EH450 is the preferred choice. For regular heavy-load and cost-sensitive scenarios, the domestic NM450 offers a better cost-performance ratio.

Why is the price of JFE EH 450 so high?

The high price of EH450 is mainly due to the fact that it is a high-hardness wear-resistant steel plate produced by the Japanese JFE Steel Factory. The core factors driving its high price are the import tariffs/logistics costs, the special alloy formula and heat treatment process, the excellent comprehensive performance (high hardness + high toughness + weldability), as well as market supply and demand.

What are the differences between imported EH450 wear-resistant plates and domestic EH450 wear-resistant plates?

Imported EH450 (usually referring to the original brand name of Japan’s JFE) and the domestic version without the “EH450” brand name, in fact, is a product of the same level as NM450.

Can EH450 replace Hardox 450?

EH450 (usually referred to as JFE-EH450) can replace Hardox 450 in most conventional wear-resistant applications.

Can EH450 replace AR450?

아니요

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