GCr15 AISI 52100 SUJ2 EN31 Alloy Construction Steel Bearing Steel Rounds
Product Introduction
Alloy 52100 bearing quality / aircraft quality dual certified steel is a moderately deep hardening alloy having high resistance to wear,
medium toughness, and low resistance to softening at high temperatures. It is an oil hardening high Carbon - Chromium alloy that develops high surface hardening.
EN31 is a very high strength steel alloy which is hardened and tempered before supplying and has nickel, chromium, molybdenum making it high tensile steel strength, with good ductility and wear resistance. With relatively good impact properties at low temperatures, EN31 is also suitable for a variety of elevated temperature applications. EN31 round bars have good internal strength and high external strength, which makes it highly wear resistant. EN31 steel round bars offer good combination of ductility, strength and wear resistance. EN31 is a very high strength alloy engineering steel.
Features
Superior hardness, 60-67 on Rockwell hardness scale (Rc) at room temperature
High carbon chrome alloy steel
Operates continually at temperatures up to 120°C
Used to produce precision ball bearings and roller bearings
Cost-effective
Long working life
Similar Standards
| Chinese |
American |
German |
Japanese |
| GB |
AISI |
DIN |
JIS |
| GCr15 |
SAE52100 |
100Cr6/EN31 |
SUJ2 |
Chemical Composition
| Grades |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
| GCr15/52100 |
0.95-1.05 |
0.15-0.35 |
0.2-0.4 |
≤0.027 |
≤0.02 |
1.3-1.65 |
≤0.1 |
≤0.25 |
≤0.3 |
| 100Cr6 |
0.95-1.05 |
0.15-0.35 |
0.25-0.45 |
≤0.025 |
≤0.025 |
1.4-1.65 |
≤0.08 |
≤0.25 |
≤0.3 |
Heat Treatment
| Quenching |
Tempering |
| Heating Temperature/ºC |
Cooling |
Hardness/HRC |
Heating Temperature/ºC |
Cooling |
Hardness/HRC |
| 830-850 |
Oil |
62-65 |
150-190 |
Air |
58-62 |
General Applications
For making all kinds of bearing ring and rolling element, such as steel ball roller and ferrule of inernal combustion engine, electric motorcycle, automonilrd tractors, machine tools, rolling mill, boring machine, mining machinery, general machinery, high load and high speed roating mechanical transmission bearing.
Sometimes also used to make tools, such as pumching die and measuring tools
The automotive and aircraft industry use Alloy Steel 52100 for a number of different applications including:
Anti-friction bearings
Mill rolls
Taps
Punches
Aircraft parts
Stock Size
| Round Bar |
Diameter |
16-280mm |
| Length |
4000-10000mm |
| Flat Steel |
Thickness |
8-200mm |
| Length |
3000-4000mm |
Why choose us?
Quality Assurance from government owned steel mills
At Changfeng , we meticulously source materials only from steel manufacturers to ensure consistency in providing the finest quality steel products for our customers.
Being in the competitive market today, we clearly understand that customers are looking for products that are not only best in class but also affordably priced. We are confident that we are able to ful fil these two equally vital aspects -our customers' continuous support over the past two decades is the most heartfelt recognition to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as important as providing quality goods, we treat every business transaction as a priority. Be it a raw material or a finished material with machining or heat treatment, every effort will be made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers' demands and quality considerations, our integrated quality and work management system is continuously being improved and developed further. We document this for our customers by having our quality management system certified in accordance with ISO 9001. This measure is accompanied by audits and recertification's on a regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
Wokrshop
Quality Inspection
Packing & Delivery
Contact Us
Contact us for the latest price and more details NOW!
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