Grade 52100 is American standard AISI /SAE high carbon chromium rolling bearing steel remelted by electroslag. It has a higher hardenability, high hardness heat treatment, high contact fatigue strength, good dimensional stability and corrosion resistance. In the manufacture of ball bearings, it is used for rolling bearing sleeves with wall thickness of 12mm. Outer diameter <250mm and steel balls with diameters of 25.4 - 50.8mm, military bearing, aero-engine bearing, precision instrument, precision spindle bearing, etc., can also be used for bear application with large loads. high wear resistance, elastic limit, high contact fatigue strength of other mechanical parts and various precision gauge cold mould.
Standards: ASTM A295
Size: φ15 - 200mm
Forms: Round bar
Heat treatment: 850 ~ 860℃ quenching, oil cold; Tempering at 160℃ for 2h.
The Equivalent Standards:
| EN/DIN | AISI | JIS | GB |
| 100Cr6 | 52100 | SUJ2 | GCr15 |
Chemical Composition
C | Si | Mn | Cr | Ni | Cu | S | P |
0.95-1.05 | 0.1-0.35 | 0.2-0.4 | 1.30-1.60 | ≤0.3 | ≤0.25 | ≤0.02 | ≤0.02 |
The Mechanical Properties
Tensile Strength (kgf/mm²) | Yield Strength 0.2% (MPa) | Elongation - % in 50 mm (min.) | Hardness, HB |
>861.3 | >518.42 | 27.95 | 63HRC |
World iron&steel is a professional supplier of alloy steel rods and bars. We manufacture and distribute high quality 52100 steel round bar for gear application in accordance with standards ASTM A295, specified delivery conditions and final customer specifications for industrial and commercial applications. Special sizes of steel bars and delivery issues can be further negotiated and we provide a wide range of solutions for purchasing departments to select alternative grades, contact us today!