SAE52100 GCr15 Bearing Steel Tube

Short Description:

GCr15 steel pipe is a kind of high carbon chromium bearing steel with low alloy content, good performance and most widely used. After quenching and tempering, it has high and uniform hardness, good wear resistance and high contact fatigue performance. The cold working plasticity of this steel is medium, the cutting performance is general, the welding performance is poor, the sensitivity to the formation of white spots is large, and the temper brittleness is present.

GB/T18254 GCr15 Bearing Steel Tube

1)Standards: Gcr 15, ISO 683/xv11, AISI 52100, JIS SUJ2

2)Chemical composition: C, Cr, Si, Mn, P, S

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Product Introduction

It has high and uniform hardness and good wear resistance. It is used to make small section quenching and tempering parts with large load and large normalizing parts with small stress.

Usage: used for making various bearing rings and rolling bodies. For example: making internal combustion engine, electric locomotive, automobile, tractor, machine tool, steel rolling machine, drill Steel rollers and ferrules for transmission bearings of exploration machines, mining machinery, general machinery and high-speed rotating machinery with high load.

Products: GB/T18254 GCr15 Stainless Bearing Steel Tube.
Standard: SKF/ ASTM/DIN/JIS/BS/GB.
Size(mm): OD:8mm ~ 101.6mm; WT:1.0mm ~ 10mm.
Length: Fixed(6m,9m,12,24m) or normal length(5-12m).

Delivery Condition

1. Ordinary annealing: heating at 790-810 ℃, furnace cooling to 650 ℃, air cooling - hb170-207.

2. Isothermal annealing: 790-810 ℃ heating, 710-720 ℃ isothermal, air cooling - hb207-229.

3. Normalizing: 900-920 ℃ heating, air cooling - hb270-390.

4. High temperature tempering: 650-700 ℃ heating, air cooling - hb229-285.

5. Quenching: 860 ℃ heating, oil quenching - hrc62-66.

6. Low temperature tempering: 150-170 ℃ tempering, air cooling - hrc61-66.

7. Carbonitriding: 820-830 ° C for 1.5-3 hours, oil quenching, - 60 ° C to - 70 ° C cryogenic treatment + 150 ° C to + 160 ° C tempering, air cooling - HRC ≈ 67.

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Specifications of Gcr 15/AISI 52100 Bearing Steel Pipe

1) Equivalent standard of Gcr 15/AISI 52100 Bearing Steel pipe
GB GCr15 bearing steel is GB standard Alloy Bearing steel, It belong to the high quality high carbon, alloy chromium,manganese steel. GB GCr15 properties is a chromium,manganese alloy steel specification. GCr15 is equivalent to AISI 52100, DIN 100Cr6. Most applications can replace each others.

GB	ISO	ASTM	JIS	DIN	NF	Sweden
GB/T18254	9001:2008	52100	SUJ2	100Cr6	100C6	SKF3

2)Chemical composition

CNS-SUJ2	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Cr(%)	Mo(%)	Ni(%)	Cu(%)
CNS-SUJ2	0.95-1.10	0.15-0.35	≦0.5	≦0.025	≦0.025	1.3-1.6	≦0.08	≦0.25	≦0.25
GB-GCr15	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Cr(%)	Mo(%)	Ni(%)	Cu(%)
GB-GCr15	0.95-1.05	0.15-0.35	0.25-0.45	≦0.025	≦0.025	1.40-1.65	≦0.1	≦0.3	≦0.25
JIS-SUJ2	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Cr(%)	Mo(%)	Ni(%)	Cu(%)
JIS-SUJ2	0.95-1.10	0.15-0.35	≦0.5	≦0.025	≦0.025	1.3-1.6	≦0.08	≦0.25	≦0.25
ASTM-E52100	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Cr(%)	Mo(%)	Ni(%)	Cu(%)
ASTM-E52100	0.98-1.10	0.15-0.35	0.25-0.45	≦0.025	≦0.025	1.3-1.6	≦0.1	≦0.25	≦0.35
100Cr6（W3）	C(%)	Si(%)	Al(%)	Mn(%)	P(%)	S(%)	Cr(%)	Cu(%)
100Cr6（W3）	0.93-1.05	0.15-0.35	≦0.05	0.25-0.45	≦0.025	≦0.015	1.35-1.60	≦0.3