미국 R30001

UNS-R30001

Product Specification: LION® R30001 (Stellite 1 Type)

LION® R30001 is a high-carbon, tungsten-strengthened cobalt-chromium alloy. It is specifically engineered for the most severe service conditions where abrasive wear is the primary failure mode. By incorporating a massive volume of primary chromium carbides (Cr7C3), it offers significantly higher hardness and life expectancy than Stellite 6 or 12 in slurry and abrasive environments.

1. 세부 화학성분(중량%)

공동크롬~ 안에그리고망간
균형28.0-32.011.0-13.02.0-3.0≤3.0≤3.0≤2.0≤1.0

2. Hot Hardness Data (Hardness vs. Temperature)

R30001 is renowned for maintaining its hardness at temperatures where standard steels soften significantly:

  • 실내 온도: 50 – 58 HRC
  • 400°C(750°F): 42HRC
  • 600°C(1110°F): 37 HRC
  • 760°C (1400°F): 32HRC
  • 870°C (1600°F): 28HRC

3. Mechanical & Physical Constants

  • 밀도: 8.69g/cm3(0.314lb/in3)
  • 녹는 범위: 1248°C – 1290°C (2278°F – 2355°F)
  • Ultimate Tensile Strength (UTS): 550 MPa (80,000 psi)
  • 열 전도성: 14.5 W/m·K (at Room Temp)
  • 전기 저항력: 94.0 μ-ohm·cm
  • Abrasion Resistance: Maximum (Highest carbide volume of the standard series)

4. 주요 용도

Targeted at high-abrasion environments where toughness is secondary to wear life:

  • 유체 취급: Pump sleeves, rotary seal rings, and expeller screws.
  • 조작: Bearing sleeves, wear pads, and centerless grinding work rests.
  • Industrial Machinery: Drawing blocks and screw presses.
  • Tooling: Specialized cutting edges for plastic and paper processing.

5. Fabrication & Machining Guidance

  • Welding & Hardfacing: Recommended for PTA(플라즈마 이송 아크) and Laser Cladding. Due to high hardness, it is **crack-sensitive**. High preheat (500°C – 600°C) and slow cooling are essential to minimize stresses.
  • 가공: Extremely difficult to machine. Conventional turning and milling are not recommended. It should only be finished by Diamond Grinding or EDM.

업계 상호 참조: UNS R30001 | Stellite 1 | AWS A5.13 ECoCr-C | ASM Co-128.
Data verified against ASM International Alloy Digest and SAE Unified Numbering System.