• Model NO.：SAE52100, GCr15, EN31, SUJ2
• Processing：Peeled, Turned, Polished
• Delivery Condition：Hot Rolled, Forged
• Test：Ut 100% passed
• Production Process：Ef,Eaf+Lf+Vd,ESR
• Lead time：7-15 days
• Sample：Free
• Stock：Available
• MOQ：1MT
• Ut standard：Sep 1921-84 class 3 C,C to D,D
• Transport Package：Standard or Customized
• Specification：Thickness 20-120mm
• Trademark：CF STEEL
• Origin：China
• HS Code：7225400000
• Production Capacity：1000mt,Month

ChineseAmericanGermanJapaneseGBAISIDINJISGCr15SAE52100EN31SUJ2 
2. Chemical Composition (%)GradesCSiMnPSCrMoCuNiGCr15/
SAE521000.95-1.050.15-0.350.20-0.40≤0.027≤0.0201.3-1.65≤0.10≤0.25≤0.30EN310.95-1.050.15-0.350.25-0.45≤0.025≤0.0251.4-1.65≤0.08≤0.25≤0.30
3. Surface Treatment
1) Round bar: Black /Grinding /Polished /Peeled /Turned
2) Steel plate: Black /Milling /Machined

4. SAE52100/GCr15/EN31/SUJ2 Ready Stock
Round Bar: Diameter 4-290mm, Length 3000-6000mm
Flat Bar: Thickness 20-200mm, Width 155-2200mm, Length 2000-6000mm
All the dimensions can be customerized as fresh production with MOQ.

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

6. Competitive Advantage
1) Good purity and homogeneity.
2) Good dimensional stability during heat treatment.
3) Good machinability (roughing, grinding and drilling).
4) Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.

7. SAE52100/GCr15/EN31/SUJ2 Heat TreatmentQuenchingTemperingHeating temperature/ºCCooling wayHardness 
(HRC)Tempering temperature/ºCCooling wayHardness
(HRC)830-850Oil Cooling 62-65150-190Air Cooling58-62
8. SAE52100/GCr15/EN31/SUJ2 Mechanical PropertiesTensile strengthYield strengthElongationHardenessσb (MPa):861.3σs (MPa):518.42δ5 (%):27.9525.8HRC

9. SAE52100/GCr15/EN31/SUJ2 Pipe Round Sheet Flat Steel picture show



10. Main Application
1) For making all kinds of bearing ring and rolling element, such as steel ball roller and ferrule of  internal 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) Sometimes also used to make tools, such as pumching die and measuring tool.


11. Payment Term
1) T/T 30% in advance, 70% balance against BL copy.
2) T/T 30% as deposit, 70% balance L/C at sight.

12. Packing
Nude or as customers' request.

13. Delivery
1) For abundant stock, 7-15 days.
2) For customized products, 15-30 days.

14. About Us
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specializing in this line in China since 2005. Our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.
Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services. 


15. FAQ
Q: Are you a manufacturer or merely a trader?
A: We are trading company act as exporting Steel Products with our own factory,
we can manufacture the products as in cutomer's requirement,wholesale and retail all kinds of domestic mould steel,the price we offered is very competitive compared with other agents.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Third,the products we export are mainly from ShaGang group, WenFeng group, XingCheng group, DongTe group,DaYe and so on, the quality are certained.
 
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.