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Tangshan Fengrun Shougang Metallurgy And Building Materials Co.,Ltd.
Add：Baiguantun Economic Development Zone, Fengrun District,Tangshan City
P.C.：064005
Low Chrome Cast Balls（Cr:1%-3%）
Shougang steel ball set research and development, service as one of the wear-resistant materials production enterprises. Main products: wear-resistant steel ball, wear-resistant steel forging, mill liner, crusher hammer, etc.
Key words:
Low Chrome Cast Balls（Cr:1%-3%）
Classification:
- Product Specification
- Procedure, Quality Inspection & Guarante
- Weight & Tolerance
- Application, Packaging
-
1.Chemical Compositions
Steel Ball Size
Φ8mm~Φ150mm
Name
Grade
Chemical Compositions
C
Si
Mn
Cr
P
S
Mo
Ni
Cu
Low Chrome Cast Balls
(LCCB)
ZQCR3
2.1-3.6
≤1.50
0.3~1.50
3~4
≤0.10
≤0.10
Trace
Trace
Trace
ZQCR2
2~3
ZQCR1
1~2
ZQCR0
0.2~1
2.Hardness, Impact-toughness, Metallurgical Structure:
Name
Grade
Surface Hardness(HRC)
Volumetric Hardness（HRC）
Impact toughness(Ak:J/cm2)
Metallurgical Structure
Dropping Balls Test/Fatigue Life Test
(3.5Meter Height)
Low Chrome Cast Balls(LCCB)
ZQCR1,ZQCR2,ZQCR3
45-50
45-49
≥1.5
P+C
80≤Φ≤150
8000
ZQCR0
40-45
40-44
≥1.2
P+C
P-Pearlite C-Carbide
Key words:- cr
- balls
- trace
- zqcr2
- zqcr3
- zqcr0
- zqcr1
- test
- compositions
- 0.10
-
1.Procedure:
Material—Inspection & Classification—Weighing Preparation—Melting—Initial Melting Inspection—E.F Conditioning—Casting—Inspection after Melting— Separation & Polishing—Semi-Finished Products Inspection—Tempering—Hardness Test—Qualified Products Stock—Packing & Delivery
2.Heat Treatment:
Based on different chemical compositions, continuously hardening and treatment can improve steel ball's hardness under certain temperatures, so as to meet different applications and working conditions
3.Quality Inspection:
Hardness Test:We can make precise control on steel ball's overall hardness during processing, it make overall hardness are even, there is no more than 3 HRC difference between core and surface hardness.
Note: Above chart is hardness profile typical distribution of ZQCR1 60mm steel ball.
4.Quality Assurance:
Quality Assurance: The breakage rate should be less than 1% in ball mill application.
-
Diameter Tolerance& Weight List
Steel Ball Dia.(mm)
8<Φ≤30
30<Φ≤60
60<Φ≤90
Φ100-Φ150
Diameter Tolerance(mm)
+1，-1
+1.5.-1
`+2.5，-1
`+3，-1
Diameter(mm)
Unit Weight (Kg/Pc)
Quantity（Pcs/Ton）
8mm
0.0021
476190
10mm
0.0041
243902
12mm
0.0071
140845
15mm
0.014
71429
17mm
0.02
50000
20mm
0.032
31250
25mm
0.064
15625
30mm
0.116
8620
35mm
0.176
5682
40mm
0.263
3802
50mm
0.513
1949
60mm
0.888
1126
70mm
1.49
671
80mm
2.104
475
90mm
2.996
334
100mm
4.11
243
110mm
5.46
183
120mm
7.1
141
125mm
8
125
130mm
9.03
111
140mm
11.1
90
150mm
13.6
73
-
1. Application: LCCB series grinding ball usually apply to black metal mines, thermal power plant coal ball mill, building materials ball mill grinding and it is also suitable for ball mill in polymetallic ores grinding.
2. Cast Ball Packaging Method:
By flexible bag: Net Weight 1000Kg/Bag;
By steel drum: Net Weight 850Kg~950Kg/drum
Related Products
Consultation
Contact Us
Tangshan Fengrun Shougang Metallurgy And Building Materials Co.,Ltd.
Add：Baiguantun Economic Development Zone, Fengrun District,Tangshan City
P.C.：064005
Domestic business
Tel/Fax：+86-315-5507099
Contact：Wong shougang +86-13739831999 / Zhang dongxia +86-13785543600 / Wong yachao +86-13933300918
Email：sgnmcl@126.com
International Business
Tel/Fax:+86-315-5115988
Contacts:Mike +86-15531516577，
Email:mike@sgsteelball.com，(Overseas Market)
Contacts:Oksana Shevchenko
Mob.: +86-159-6239-0710 (Telegram, WhatsApp, Viber)
WeChat: oksana1212
Email: Oksana.sgsteelball@yandex.ru
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