EN31/SAE52100/GCR15 Alloy Seamless Steel Tube Pipe For Bearings

• Type: Seamless
• Technique: Hot Rolled
• Material: Alloy Steel
• Surface Treatment: Black
• Usage: Machinery Industry, Special Purpose
• Section Shape: Round
• Model NO.: EN31/SAE52100/GCR15/Suj2/100Cr6/SH15
• Delivery condition: Annealed
• Heat Treatment: Hot Rolled
• Quality Assurance: 100% UT passed
• Payment Term: TT/LC
• Shipment: 7days
• Condition: stock
• Transport Package: Standard/Customized
• Specification: standard/customized
• Trademark: customized
• Origin: China
• HS Code: 7228300000
• Production Capacity: 1000t/Month

Product Description

EN31/SAE52100/GCR15 Alloy Seamless Steel Tube For Bearing 

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.
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.


Features

1. 1 A kind of high carbon and chromium bearing steel which most widely used with a good permance and less alloy content.
2. 2. High hardenability and good comprehensive performance.
3. 3. Good machinability after spheroidizing annealing
4. 4. High hardness, uniform organization, good wear resistance, high contact fatigue performance after quenching and tempering.
5. 5. Good hot working performance     

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

Applications

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

Stock Size

Round Bar	Diameter	16-280mm
	Length	4000-10000mm
Flat Steel	Thickness	8-200mm
	Length	3000-4000mm

Workshop

Quality Inspection

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