- 설명
Hard Surfacing vs Hard Facing Plate: Understanding the Terminology and Choosing the Right Product
In the wear protection industry, buyers often encounter terms such as hard surfacing, hard facing plate, 용접 오버레이, 클래딩, 그리고 fusion bonded wear plate. Although these words are closely related, they do not always refer to the same product.
A common purchasing mistake happens when suppliers and buyers use the same terminology but imagine different products. 예를 들어, one customer may ask for “하드페이싱” expecting a finished chromium carbide overlay plate, while another may mean only the welding process itself.
This guide explains the industrial meaning of these terms, their differences, and how buyers from different regions usually specify wear-resistant materials.
1. Hard Surfacing vs Hard Facing Plate: The Core Difference
| 용어 | 의미 | Product or Process? |
|---|---|---|
| Hard Surfacing | A general process of applying a wear-resistant alloy layer onto a metal surface | 프로세스 / technology |
| Hard Facing Plate | A finished composite plate with a wear-resistant overlay layer bonded to a steel base | Finished product |
| 하드페이싱 | Industrial term for creating a hard protective surface by welding or thermal spraying | Process category |
| 크롬 카바이드 오버레이 플레이트 | A specific type of hard facing plate using chromium carbide alloy overlay | Finished product |
Simply explained:
- Hard surfacing = how the wear layer is created.
- Hard facing plate = the final material you purchase and install.
2. What Does Hard Surfacing Mean?
Hard surfacing refers to any technology used to improve surface wear resistance by adding a harder material layer onto a base metal.
The base material is usually:
- 탄소강
- Low alloy steel
- 스테인레스 스틸
- Cast iron components
The deposited layer may contain:
- 크롬탄화물
- 텅스텐 카바이드
- 니켈 기반 합금
- Cobalt-based alloys
- Iron-based wear alloys
Hard surfacing is commonly applied to:
- Crusher teeth
- 채굴용 버킷
- 밀 롤러
- 밸브 시트
- Industrial components requiring repair or protection
3. What Is a Hard Facing Plate?
A hard facing plate is a factory-produced composite wear plate designed for installation as a replaceable wear liner.
Its typical structure:
| 층 | 기능 |
|---|---|
| Wear Overlay Layer | Provides high abrasion resistance, usually HRC 50-65 경도 |
| Steel Backing Plate | 강인함 제공, welding ability, 구조적 지원 |
The most common commercial version is the 크롬 카바이드 오버레이 플레이트 (CCO 플레이트), widely used in mining, 시멘트, 강철, 및 전력 산업.
4. Understanding Four Common Industry Terms
4.1 용접 오버레이
“Weld overlay” describes the manufacturing method where a wear-resistant alloy is deposited onto a steel substrate through welding.
It emphasizes the bonding process rather than the final application.
Common methods:
- 서브머지드 아크 용접 (봤다)
- 오픈 아크 용접
- 가스 금속 아크 용접
- Plasma Transfer Arc
4.2 클래딩
Cladding is a broader engineering term describing the bonding of one material layer onto another material.
Cladding may include:
- Weld cladding
- 폭발 본딩
- 롤 본딩
- 레이저 클래딩
In some industries, “clad plate” may refer to corrosion-resistant stainless steel bonded plates rather than abrasion-resistant plates, so buyers should confirm the application.
4.3 Fusion Bonded Wear Plate
Fusion bonded wear plate refers to a wear layer metallurgically bonded to the steel substrate through melting and solidification.
The term highlights:
- Strong metallurgical connection
- Low risk of delamination
- High load-bearing capability
4.4 하드페이싱
Hardfacing is the most commonly used industry spelling, especially in North America and Australia.
It generally means applying a hard alloy surface to improve wear resistance.
It can describe:
- Repair welding
- Component protection
- Wear plate production
5. Regional Purchasing Terminology Differences
| 지역 | Common Terms | Buyer Expectation |
|---|---|---|
| 미국 | Hardfacing plate / Chrome carbide overlay / CCO 플레이트 | Usually means finished wear plate |
| 유럽 | Weld overlay plate / Wear resistant cladding | Focus on metallurgical bonding and standards |
| 호주 | 하드페이싱 / Chromium carbide plate | Mining industry focused terminology |
| 동남아시아 | Hard facing plate / CCO 플레이트 | Often used for mining and cement projects |
6. Hard Facing Plate vs Wear Resistant Steel Plate
| 재료 | 주요 특징 | Suitable Condition |
|---|---|---|
| 크롬 카바이드 오버레이 플레이트 | 매우 높은 표면 경도 | 심한 슬라이딩 마모 |
| NM400/NM500 Wear Plate | 균형잡힌 경도와 인성 | 영향 + 연마 |
| Standard Steel Plate | Low cost and easy fabrication | 가벼운 마모 |
7. How Buyers Should Specify the Product
To avoid misunderstanding, buyers should provide more than just the word “하드페이싱”.
A complete specification should include:
- Product type: chromium carbide overlay plate or other alloy
- 베이스 플레이트 두께
- 오버레이 두께
- Hardness requirement
- Chemical composition requirement
- 플레이트 크기
- Application condition
8. Common Purchasing Mistakes
- Assuming all hardfacing plates have the same wear life
- Comparing only hardness without checking carbide structure
- Confusing repair hardfacing with factory overlay plates
- Ignoring base plate toughness in impact applications
- Choosing the cheapest plate without considering replacement frequency
9. Hard Facing Plate Solutions from Teda Ganghua
Teda Ganghua provides professional wear protection solutions for customers in mining, 시멘트, 강철, 발전, 및 중공업 부문.
Our product solutions include:
- 크롬 카바이드 오버레이 플레이트
- Customized hard facing plates
- Wear liner solutions for severe abrasion environments
- Cutting and fabrication support according to project requirements
By combining material selection experience with application analysis, Teda Ganghua helps customers choose the correct wear protection solution instead of simply purchasing by price.
Learn more:
결론
Hard surfacing and hard facing plate are related but different concepts. Hard surfacing describes the technology, while hard facing plate describes the finished wear-resistant product.
For international buyers, understanding the difference between hardfacing, 용접 오버레이, 클래딩, and chromium carbide overlay plate helps prevent specification errors and ensures the purchased material matches the actual working condition.
