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Steel Tube Bearing Steel GKZ Cold Drawn SUJ2 Seamless Tubing

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New-Era Steel Tube Bearing Steel GKZ Cold Drawn SUJ2 Seamless Tubing

1. Features

Bearing steel tube is a sort of hot-rolled or cold-rolled (cold-drawn) seamless steel tube. It withstands great pressure

and friction force, so bearing steel tube own high and uniform hardness and abrasive resistance and elastic max.

There are strict requirements for bearing tube, particularly the uniformaity of chemical composition, non-metallic inclusion

content and distribution of carbides.

roduct Name	Cold Drawn Precision Steel Tube Cold Rolled Precision Steel Tube
Materials	Carbon Steel ,Alloy steel ,Bearing Steel ,Stainless Steel
Shape	Round ,Triangle,Hexagon,Square,Rectangular,Octagon or as customer’s drawing
Technics	Cold Drawn ,Cold Rolled
Surface Treatment	Oiled,Brightness
Length	As customer’s demand
Tolerance	+-0.1mm, +-0.05mm
Application	Precision machine parts, Parts for Car,Auto and Motorcycle ,Sleeve Pipe
Delivery Condition	1. BK (+C) 2. BKW (+LC) 3. BKS (+SR) 4. GBK (+A) 5. NBK (+N)

3. Chemical Composition

4. Heat Treatment

5. Mechanical Properties of ASTM A295 52100 Bearing Steel

Properties	Metric	Imperial
Bulk modulus (typical for steel)	140 GPa	20300 ksi
Shear modulus (typical for steel)	80 GPa	11600 ksi
Elastic modulus	190-210 GPa	27557-30458 ksi
Poisson's ratio	0.27-0.30	0.27-0.30
Hardness, Brinell	-	-
Hardness, Knoop (converted from Rockwell C hardness)	875	875
Hardness, Rockwell C (quenched in oil from 150°C tempered)	62	62
Hardness, Rockwell C (quenched in water from 150°C tempered)	64	64
Hardness, Rockwell C (quenched in oil)	64	64
Hardness, Rockwell C (quenched in water)	66	66
Hardness, Vickers (converted from Rockwell C hardness)	848	848
Machinability (spheroidized annealed and cold drawn. Based on 100 machinability for AISI 1212 steel)	40	40

Production Steel BearingTube 100Cr6/GCr15/52100 :

Steel Tube Bearing Steel GKZ Cold Drawn SUJ2 Seamless Tubing

Tags:Bearing Steel 52100,Bearing tubes 100Cr6,ASTM A295/A295M bearing steel tubes,

SUJ2 Seamless Tubing;New-Era Steel Tube

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