• Jiangsu Hongbao Group Co., Ltd.
    A good collaboration!
  • Jiangsu Hongbao Group Co., Ltd.
    It could provide professional solutions for application of titanium tubes, reliable partner.
Contact Person : Angela
Phone Number : 86-512-58715276
Whatsapp : +8615895686919

Oil Treated Precision Bearing Steel Tube , GCr15 Cold Drawn Seamless Steel Tube

Place of Origin China
Brand Name Hongbao
Certification ISO9001, OHSAS18001,TS16949 etc
Minimum Order Quantity 3 tons
Price Negotiable
Delivery Time 25 days
Supply Ability 20000 ton/year

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Product Details
Material 100Cr6, SKF3, GCr15, SKF3S Standard GB/T18254, YB/T4146
Shape Round Delivery Condition Annealing
Sample Free Sample Port Shanghai Port
High Light

hardened steel tube


ball bearing tube

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Product Description

GCr15 Precision Cold Drawn Seamless Bearing Steel Tube for Auto Parts


Bearing steel pipe is the seamless steel tube for hot rolling or cold rolling (cold drawing) for the manufacture of ordinary rolling bearing ring. The outer diameter of the steel tube is 25-180 mm, and the wall thickness is 3.5-20mm, which is divided into ordinary precision and high precision. Bearing steel is used for making ball bearings, roller bearings and bearing rings. Bearing is under great pressure and friction, so the bearing steel is required to have high and uniform hardness and wear resistance, and high elastic limit. On the uniformity of the chemical composition of bearing steel, the content and distribution of non-metallic inclusions are very demanding, the distribution of the carbide, etc, are all steel production in one of the most demanding steel grade.
1. Main Date
Material: E215, E255, C35E, C45E , E355, 26MnB5, 34MnB5, 50CrVA , SAE1026, SAE5160H, PA12, MT1010, 45# , GCr15,GCr9SiMn,PA12,100 Cr6 etc.
Diameter range:10-160mm ,
Thickness Range:1-25mm
2. Manufacturing Process
Oil Treated Precision Bearing Steel Tube , GCr15 Cold Drawn Seamless Steel Tube 0
3. Main Equipment List and Capacity Analysis

Status Main Equipment List Quantity (Line) Capa per Shift Shift per Day Working days per month Actual Capacity

Piercing Mill ∮50-∮120

5 25T/S 2 Shifts 22 Days 66000T/Y

Rolling Mill ∮40-∮180

50 1.25T/S 2 Shifts 22 Days 33000T/Y

60T 3 Lines of High Precision Drawing Machine

1 15T/S 2 Shifts 22 Days 7920T/Y

Drawing Machine 10T-150T

10 3.5T/S 2 Shifts 22 Days 18480T/Y

Straightening Machine ∮30-∮130

7 16.5T/S 2 Shifts 22 Days 60984T/Y

Heating Furnace

4 26T/S 2 Shifts 22 Days 54900T/Y

Eddy Current Detector

3 33T/S 2 Shifts 22 Days 52272T/Y

Ultrasonic Detector

1 10T/S 2 Shifts 22 Days 5280T/Y

Ultrasonic & Eddy Current Detector

1 25T/S 2 Shifts 22 Days 13200T/Y
Automatic Pickling Equipment 1 115T/S 2 Shifts 22 Days 60720T/Y
60 Welding Line 1 25T/S 2 Shifts 22 Days 13200T/Y
Head Shrinked Machine 1 25T/S 2 Shifts 22 Days 13200T/Y
85m Roller Hearth Bright Normalizing(Annealing) Furance 1 48T/D 2 Shifts 22 Days 12672T/Y


Project under construction

SG/76 Strengthen Precision High Frequency Welding Line

1 65T/D 2 Shifts 22 Days 17160T/Y

14 Roller Precision Straightening Machine

2 25T/S 2 Shifts 22 Days 13200T/Y

60T 3 Lines of High Precision Drawing Machine

1 30T/D 2 Shifts 22 Days 7920T/Y

4. Test
1. Selection of raw materials: Choose the best raw material--titanium sponge.
2. Advanced detection equipment:The turbine detector, Ultrasonic flaw detection & Infrared detection apparatus.
3. Test report with 3rd party.
5. Trade Information

Trade Term FOB, EXW, CIF
MOQ 10000KG
Payment 30% TT in advance, balance before shippment or B/L at sight.
Sample  Free sample but postage is required.
Delivery Time 15-60 days
Package Standary export package or as requirement
Other service As customer requirement