텅스텐 카바이드와 세라믹 및 스텔라이트 마모 부품 비교

In industries where parts must survive heavy wear, heat, and corrosion, choosing the right material is critical.

Three of the most popular materials for 마모 부품 are tungsten carbide, ceramic, and Stellite. Each material has unique properties, strengths, and weaknesses.

For decision-makers in manufacturing, 채광, 석유와 가스, and other heavy industries, the choice between these materials can greatly affect production costs, downtime, and product performance.

This guide compares tungsten carbide, ceramic, and Stellite wear parts in detail so you can make informed choices for your operations.

텅스텐 카바이드란 무엇인가?

Tungsten carbide is a compound made of tungsten and carbon atoms.

It is one of the hardest materials used in industry, ranking about 8.5–9 on the Mohs hardness scale.

Key Properties:

Extremely high 경도 — harder than steel and most metals.
훌륭한 내마모성 — ideal for abrasive conditions.
High heat resistance — retains hardness even at high temperatures.
보통의 강인함 — more brittle than steel but stronger than most ceramics.

Common Applications: Cutting tools, mining drills, wear-resistant dies, pump and valve components, and nozzles.

What Are Ceramic Wear Parts?

Ceramics are non-metallic, inorganic materials made from compounds such as alumina, zirconia, or silicon nitride.

Key Properties:

Very high 경도 — can be as hard as or harder than tungsten carbide.
Excellent corrosion resistance — does not rust or oxidize.
Lightweight — less dense than metal-based wear parts.
낮은 강인함 — very brittle, prone to cracking under impact.

Common Applications: Bearings, seals, cutting blades for very fine finishes, and high-temperature components in chemical processing.

What Is Stellite?

Stellite is a cobalt-based alloy containing chromium, tungsten, and other metals.

It was designed for exceptional wear and corrosion resistance, especially at high temperatures.

Key Properties:

높은 내마모성 — especially in sliding and galling conditions.
Good corrosion resistance — suitable for chemical and marine environments.
높은 강인함 — resists impact better than tungsten carbide and ceramics.
낮추다 경도 than tungsten carbide — but often enough for many industrial uses.

Common Applications: Valve seats, cutting edges, turbine blades, and wear-resistant coatings.

Material Property Comparison Table

Here is a side-by-side comparison of the three materials:

재산	텅스텐 카바이드	세라믹	Stellite
경도	8.5–9 Mohs	8–9.5 Mohs	4–6 Mohs
내마모성	훌륭한	훌륭한	좋은
내열성	Very high	Very high	높은
부식 저항성	높은	훌륭한	높은
강인함	보통의	낮은	높은
밀도	Very high	Low to medium	중간
비용	높은	높은	Medium to high

Strengths and Weaknesses of Each Material

1). Tungsten Carbide

1.1). Pros:

훌륭한 내마모성 in abrasive environments.
Performs well in high-heat applications.
Long service life reduces downtime.

1.2). Cons:

Can chip or break under very high impact.
More expensive than many steels.

2). Ceramic

2.1). Pros:

Extremely hard and corrosion-proof.
Lightweight — ideal for applications where weight matters.
Can operate in extremely high temperatures.

2.2). Cons:

Brittle — can fracture easily under shock or bending loads.
Can be expensive for large or complex parts.

3). Stellite

3.1). Pros:

훌륭한 강인함 — handles shock and vibration well.
Good wear and corrosion resistance.
Can be welded or coated onto other parts.

3.2). Cons:

Lower hardness compared to tungsten carbide and ceramics.
May wear faster in abrasive environments.

Best Material by Application Type

애플리케이션	Best Choice	Reason
채굴 및 시추	텅스텐 카바이드	Exceptional wear resistance in abrasive rock and soil.
화학 처리	세라믹	Superior corrosion resistance and high heat capability.
Valve Seats in Oil & Gas	Stellite	High toughness to resist impact and vibration.
고속 절삭 공구	텅스텐 카바이드	Maintains sharpness and hardness at high speeds.
High-Temperature Bearings	세라믹	Lightweight and stable under extreme heat.

Choosing the Right Material

When deciding between tungsten carbide, ceramic, and Stellite, consider the following:

Type of Wear: For abrasion, tungsten carbide and ceramics are top choices. For impact and galling, Stellite is better.
Operating Temperature: All three handle heat well, but ceramics excel in extreme heat.
Corrosion Risk: Ceramics offer the best corrosion protection, followed by Stellite and tungsten carbide.
Budget: Stellite often costs less than ceramics and tungsten carbide for similar part sizes.