TitleProduct

GB Gcr15 Bearing Steel Bar

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    Negotiable

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  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Jiangsu

  • Validity to:

    Long-term effective

  • Last update:

    2017-12-21 20:52

  • Browse the number:

    265

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Company Profile

Kunshan Chengweishang Special Steel Co., Ltd.

By certification [File Integrity]

Contact:Mr. Fortune Yang(Mr.)  

Email:

Telephone:

Phone:

Area:Jiangsu

Address:Jiangsu

Website: http://ks-cws.auto-charge.net/

PRODUCT DETAILS
Bearing Steel
Machinability
AISI 52100 alloy steel can be machined using conventional techniques. The machinability of this steel can be improved by performing spherodizing annealing process at 649°C (1200°F) before machining.
Forming
AISI 52100 alloy steel can be formed using all conventional techniques such as cold forging or stamping and hot or cold upset forming techniques.
Heat Treatment
AISI 52100 alloy steel is heated at 816°C (1500°F) followed by quenching in oil. Before performing this process, it is subjected to normalizing heat treatment at 872°C (1600°F) followed by slowly cooling in order to reduce the machining stress.
Forging
AISI 52100 alloy steel is forged at 927 to 1205°C (1700 to 2200°F).
Hot Working
AISI 52100 alloy steel can be hot worked at 205 to 538°C (400 to 1000°F).
Cold Working
AISI 52100 alloy steel can be cold worked using conventional techniques in the annealed or normalized conditions.
Annealing
AISI 52100 alloy steel is annealed at 872°C (1600°F) followed by slowly cooling to reduce cold working or machining stress.
Hardening
AISI 52100 alloy steel is hardened by cold working, or heating and quenching. It can be carburized at 913°C (1675°F) followed by quenching. It is again heated at 788°C (1450°F) followed by quenching for the second time.
 
Equivalent grades GB DIN ASTM JIS
GCr15 100Cr6 52100 SUJ2
Chemical Composition C Si Mn Cr P S
0.98-1.10 0.15-0.35  0.25-0.45 1.30-1.60 0.025MAX 0.025MAX
Delivery Status Forged,Black surface
Hot rolled,Black surface
Cold drawn,Bright surface
Forged,Turned,Bright surface
Hot rolled,Turned,Bright surface
Hardness and heat treatment specification Annealed hardness HBS:225
Cold drawn hardness HBS: 269
Preheat temperature/ºC: 800-850
Hardening temperature/ºC: 840-870
Tempering temperature/ºC: 550-770
(controlled atmosphere furnace)
The heat preservation time/min: 90-120
Quenching medium: Air cooling
After tempering hardness: 18-25
HRC(≥)