SAE 52100 Round Bars - JSW & Bhushan
SAE 52100 Round Bar is a Bearing Steel is a High Carbon, Chromium Containing low alloy steel that is through hardening and noted in particular for use as bearings.
SAE 52100 Bearing steel is one kind of special steel with features of high wear resistance and rolling fatigue strength. High-carbon chromium bearing steel, engineering steel and some types of stainless steel and heat resistant steel are used as materials of bearings and for other purposes.
When properly heat treated, 52100 steel can achieve incredibly high hardness values, up to 66 Rockwell C. This hardness allows components made from 52100 to better withstand intense mechanical stresses, abrasive wear, and surface fatigue over extended periods of use. It has excellent corrosion resistance due to the high chromium content.
While its hardness makes 52100 incredibly tough and long lasting, it also means the steel is quite brittle compared to other steel grades. While incredibly hard and resilient, the alloy does sacrifice some malleability and resistance to impact forces. Care must be taken during machining and fabrication to avoid introducing microscopic cracks and defects that could lead to catastrophic failures down the line.
For this reason, 52100 is an alloy utilised primarily for parts and components that experience punishing conditions but require little deformation during operation. You'll find it used in a variety of harsh industrial settings like bearings, bushings, cams, shafts, and other high-load, high-wear applications where tremendous hardness and resilience is paramount.
We keep ready stock of JSW & Bhushan Make with spheroidized annealed in Bright and Black Round Bar form.
What is Spheroidize Annealing ?
Spherodize annealing is generally done on parts which have been work hardened, to allow them to be further worked, either rolled in the case of coils, or drawn for wire. This resulting product has improved ductility and toughness with reduced hardness and strength.
SAE 52100 Chemical Composition :
Elements | Min | Max |
C | 0.93 | 1.05 |
Mn | 0.25 | 0.45 |
Si | 0.15 | 0.35 |
P | - | 0.025 |
S | - | 0.015 |
Cr | 1.35 | 1.60 |
Applications of SAE 52100 :
SAE 52100 alloy steel excels for severe-duty bearings, bushings, and wear components subjected to intense temperatures, loading, and hostile environments. Its exceptional hardness and wear resistance make it ideal for aircraft engines, machine tooling, offshore equipment, and any application demanding ultra-hard, durable components.