4142
Round
AISI, ASTM, DIN, JIS, GB, BS
Ferrous Steel Scrap
Forged
Bar
Polished
Structural Steel Bar
AISI
Quenched Tempered Qt
Ground, Turning, Polished
Hot Forged
SHUNFU
Wooden Case
80-650mm
China
Product Description
AISI 80-650MM Forged Quenched Polished Alloy Steel Round Bar
We are a manufacturer of alloy steel bars, which include forging, quenching, and polishing processes. Our products are of high quality and durability, suitable for various industrial applications. We have advanced equipment and skilled workers, and we can customize the specifications and grades of the steel bars according to your needs. We are committed to providing you with the best service and competitive prices. If you are interested in our products, please feel free to contact us for more information. We look forward to hearing from you soon.
What we can do for you
Form : Hot rolled and hot forgedHeat treatment: annealed, normalized, quenched and tempered
Surface : Ground, turning, polished
Advantage
- We have more than 20 years of experience in the alloy steel industry, and we have established a good reputation among our customers and partners.
- We have a strong research and development team, which constantly innovates and improves our products and processes, to meet the changing market demands and customer requirements.
- We have a strict quality control system, which ensures that every steel bar we produce meets the international standards and specifications.
- We have a large production capacity and a fast delivery time, which can satisfy your urgent and large orders.
- We have a professional and friendly customer service team, which can provide you.
Chemical Composition
| Grade | Carbon | Manganese | Phosphorus, | Sulfur, | Silicon | Nickel | Chromium | Molybdenum |
| Designation | max | max | ||||||
| 4012 | 0.09-0.14 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.15-0.25 |
| 4023 | 0.20-0.25 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4024 | 0.20-0.25 | 0.70-0.90 | 0.035 | 0.035-0.050 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4027 | 0.25-0.30 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4028 | 0.25-0.30 | 0.70-0.90 | 0.035 | 0.035-0.050 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4032 | 0.30-0.35 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4037 | 0.35-0.40 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4042 | 0.40-0.45 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4047 | 0.45-0.50 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.20-0.30 |
| 4118 | 0.18-0.23 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.40-0.60 | 0.08-0.15 |
| 4120 | 0.18-0.23 | 0.90-1.20 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.40-0.60 | 0.13-0.20 |
| 4121 | 0.18-0.23 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.45-0.65 | 0.20-0.30 |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4135 | 0.33-0.38 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4137 | 0.35-0.40 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4142 | 0.40-0.45 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4145 | 0.43-0.48 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4147 | 0.45-0.50 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4150 | 0.48-0.53 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.80-1.10 | 0.15-0.25 |
| 4161 | 0.56-0.64 | 0.75-1.00 | 0.035 | 0.04 | 0.15to0.35 | ... | 0.70-0.90 | 0.25-0.35 |
| 4320 | 0.17-0.22 | 0.45-0.65 | 0.035 | 0.04 | 0.15to0.35 | 1.65-2.00 | 0.40-0.60 | 0.20-0.30 |
| 4340 | 0.38-0.43 | 0.60-0.80 | 0.035 | 0.04 | 0.15to0.35 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 |
| E4340 | 0.38-0.43 | 0.65-0.85 | 0.025 | 0.025 | 0.15to0.35 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 |
| 4419 | 0.18-0.23 | 0.45-0.65 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.45-0.60 |
| 4422 | 0.20-0.25 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.35-0.45 |
| 4427 | 0.24-0.29 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | ... | ... | 0.35-0.45 |
| 4615 | 0.13-0.18 | 0.45-0.65 | 0.035 | 0.04 | 0.15to0.35 | 1.65-2.00 | ... | 0.20-0.30 |
| 4620 | 0.17-0.22 | 0.45-0.65 | 0.035 | 0.04 | 0.15to0.35 | 1.65-2.00 | ... | 0.20-0.30 |
| 4621 | 0.18-0.23 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | 1.65-2.00 | ... | 0.20-0.30 |
| 4626 | 0.24-0.29 | 0.45-0.65 | 0.035 | 0.04 | 0.15to0.35 | 0.70-1.00 | ... | 0.15-0.25 |
| 4715 | 0.13-0.18 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | 0.70-1.00 | 0.45-0.65 | 0.45-0.60 |
| 4718 | 0.16-0.21 | 0.70-0.90 | 0.035 | 0.04 | 0.15to0.35 | 0.90-1.20 | 0.35-0.55 | 0.30-0.40 |
| 4720 | 0.17-0.22 | 0.50-0.70 | 0.035 | 0.04 | 0.15to0.35 | 0.90-1.20 | 0.35-0.55 | 0.15-0.25 |
| 4815 | 0.13-0.18 | 0.40-0.60 | 0.035 | 0.04 | 0.15to0.35 | 3.25-3.75 | ... | 0.20-0.30 |
| 4817 | 0.15-0.20 | 0.40-0.60 | 0.035 | 0.04 | 0.15to0.35 | 3.25-3.75 | ... | 0.20-0.30 |
| 4820 | 0.18-0.23 | 0.50-0.70 | 0.035 | 0.04 | 0.15to0.35 | 3.25-3.75 | ... | 0.20-0.30 |
