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|Alloy Machinery Steel
|100% UT Passed
engineering special steels,
h13 tool steel
Alloy Engineering Steel Bar Bearing Steel Round Bar GBGCR15/DIN EN31/ SUJ2/100Cr6/AISI 52100
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.
52100 Premium Quality VAR is 52100 melted twice (vacuum arc remelted) and is used in various bearing applications for aircraft or other critical parts. It has excellent wear and abrasion resistant qualities and can also be used in place of tool steels. It has the same basic properties as 52100 but the VAR melting provides extreme cleanliness.
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.
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
Long working life
Mechanical Properties of ASTM A295 52100 Bearing Steel
|Bulk modulus (typical for steel)
|Shear modulus (typical for steel)
|Hardness, Knoop (converted from Rockwell C hardness)
|Hardness, Rockwell C (quenched in oil from 150°C tempered)
|Hardness, Rockwell C (quenched in water from 150°C tempered)
|Hardness, Rockwell C (quenched in oil)
|Hardness, Rockwell C (quenched in water)
|Hardness, Vickers (converted from Rockwell C hardness)
|Machinability (spheroidized annealed and cold drawn. Based on 100 machinability for AISI 1212 steel)
1. 1 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.
2. 2. Sometimes also used to make tools, such as pumching die and measuring tools
3. 3The automotive and aircraft industry use Alloy Steel 52100 for a number of different applications including:
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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.
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Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
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