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Shougang Metallurgical Building Materials Co., Ltd., Fengrun District, Tangshan City
Address: Baiguantun Economic Development Zone, Fengrun District, Tangshan City, Hebei Province
Website: www.sgsteelball.cn
Website: www.sgsteelball.com
SGFB-3 (C:0.75%, Cr:0.5%)
1. Chemical Composition: Product Name, Grade, and Chemical Composition (%): CSiMnCrMoCuPS Forged Steel Balls SGFB-3: 0.72–0.85, 0.17–0.37, 0.7–0.9, 0.4–0.6, ≤0.30, ≤0.30, ≤0.035, ≤0.035 2. Hardness, Impact Toughness, Microstructure, and Fatigue Life: Grade/Model (mm) | Surface Hardness (HRC) | Core Hardness (HRC) | Bulk Hardness (HRC) | Impact Value (Ak: J/cm²) | Microstructure | Drop‑Ball Impact Fatigue Life (Height: 3.5 m) SGFB‑3 Φ40–Φ50 6
Keywords:
SGFB-3 (C:0.75%, Cr:0.5%)
Category:
Product Description
1. Chemical Composition:
|
Product Name |
Grade |
Chemical Composition (%) |
|||||||
|
C |
Yes |
Mn |
Cr |
Mo |
Cu |
P |
S |
||
|
Forged steel ball |
SGFB-3 |
0.72-0.85 |
0.17-0.37 |
0.7-0.9 |
0.4-0.6 |
≤0.30 |
≤0.30 |
≤0.035 |
≤0.035 |
2. Hardness, impact toughness, microstructure, and fatigue life:
|
Grade |
Model number |
Surface hardness |
Inner hardness |
Volumetric hardness |
Impact value |
Microstructure |
Drop-ball impact fatigue life |
|
|
SGFB-3 |
Φ40~Φ50 |
60-65 |
59-64 |
60-65 |
≥13 |
M+B+C |
80≤Φ≤150 |
≥10000 |
|
Φ60~Φ80 |
60-65 |
58-63 |
60-65 |
|||||
|
Φ90 |
57-62 |
51-56 |
56-61 |
|||||
|
Φ100~Φ120 |
53-58 |
47-52 |
50-55 |
|||||
|
Φ125~Φ130 |
51-56 |
45-50 |
47-52 |
|||||
|
Φ140~Φ150 |
48-53 |
40-45 |
45-50 |
|||||
|
M—martensite, B—bainite, C—carbide |
||||||||
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