Introduction
Rongli Forging Co., Limited is capable to supply rolls for steel rolling mill. Our custom-manufactured rolls emphasize in quality and that is what has been supporting us selling thousands of rolls to all over the world over decades, for industries of steel making, heavy industry machinery, metallurgy, etc.
Material
| C | Si | Mn | Cr | Ni | Mo | V | P | S | |
| 9Cr2Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.40 | 1.70-2.10 | ≤0.30 | 0.20-0.40 | ≤0.030 | ≤0.030 | |
| 9Cr3Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.35 | 3.00-3.50 | ≤0.30 | 0.20-0.30 | ≤0.030 | ≤0.030 | |
| MC3 | 0.82-0.90 | 0.60-0.90 | 0.20-0.45 | 2.80-3.20 | 0.60-0.80 | 0.40-0.60 | 0.05-0.15 | ≤0.020 | ≤0.015 |
| MC5 | 0.80-0.90 | 0.30-0.55 | 0.20-0.50 | 4.80-5.40 | 0.30-0.50 | 0.20-0.40 | 0.05-0.12 | ≤0.020 | ≤0.015 |
| 70Cr3NiMo | 0.58-0.70 | 0.40-0.70 | 0.40-0.70 | 2.60-3.40 | 0.50-1.00 | 0.60-0.80 | 0.05-0.15 | ≤0.020 | ≤0.015 |
| 70Cr3Mo | 0.60-0.75 | 0.40-0.70 | 0.50-0.90 | 2.80-3.50 | ≤0.60 | 0.25-0.60 | ≤0.025 | ≤0.025 | |
| 60CrMnMo | 0.55-0.65 | 0.25-0.40 | 0.70-1.00 | 0.80-1.20 | 0.20-0.30 | ||||
| Any other material grade as per customer’s requirement | |||||||||
Forging method: Open die forging / free forging
1. Material: Carbon steel, alloy steel, stainless steel
2. Material standard: DIN/ ASTM/AISI/ASME/BS/EN/JIS/ISO
3. Mechanical properties: According to customer requirement or standard.
4. Weight: Up to 70 Tons of finished forging. 90 Tons for ingot
5. Diameter: Up to 20 meters for forging
6. Delivery Status: Heat treated and rough machined
7. Industries: heavy industry machinery, etc
8. Inspection: Chemical analysis with spectrometer, Tensile test, Charpy test, Hardness Test, Metallurgy test, Ultrasonic test, Magnetic Particle test, Liquid Penetration test, Hydro test, Radiographic test are implementable.
9. Quality Assurance: Per ISO9001-200