SAE 8620 Bright Bar Manufacturer & Supplier
Nickel-chromium-molybdenum case hardening bar to the American standard. The molybdenum gives better core hardenability than 20MnCr5 in heavier sections.
UNS: G86200 / 21NiCrMo2 | Category: Case Hardening Steel
Size Range
Outer Diameter: Diameter 10-120 mm · Round, square, hexagon & flat sections
Chemical Composition (%)
| C | Ni | Cr | Mo | Mn |
|---|---|---|---|---|
| 0.18-0.23 | 0.40-0.70 | 0.40-0.60 | 0.15-0.25 | 0.70-0.90 |
Mechanical Properties
- Tensile Strength
- 650-900 MPa (core)
- Yield Strength
- 420 MPa min
- Elongation
- 12%
- Case hardness
- 58-62 HRC
Applicable Standards
- EN 10277-4 (case hardening bright steel)
- EN 10084 (case hardening steels)
- EN 10278 (dimensions & tolerances)
- ASTM A29 / A322
- EN 10204 3.1 certification
Applications
- Carburised gears & shafts
- Ring gears
- Hydraulic pump components
- Chain components
- Universal joint parts
Industries Served
- Automotive & Auto Components
- Hydraulics & Pneumatics
- Heavy Engineering
- Agricultural Equipment
- General Engineering
- Mining Equipment
Equivalent Grades
- EN
- 21NiCrMo2
- Werkstoff / DIN
- 1.6523
- BS 970
- 805M20
- JIS
- SNCM220