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Thông tin chi tiết sản phẩm:
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| Lớp thép: | Hợp kim thép 4340 | Hợp kim hay không: | Là hợp kim |
|---|---|---|---|
| Kỹ thuật: | cán nóng, rèn, rút nguội | Ứng dụng: | Thanh thép chết, hóa chất, đóng tàu |
| Kiểu: | Thanh thép hợp kim | Tiêu chuẩn: | ASTM, DIN, AISI |
| Hình dạng: | Tròn | Chiều dài: | 1--12m |
| Bề mặt: | đen hoặc sáng | Đường kính: | 12mm-650mm |
| Điều trị nhiệt: | Bình thường hóa + Ủ + Dập tắt + Cường độ |
AISI/ASTM 4340 Alloy Steel Round Bar SAE AISI 4340 Steel Properties, Heat Treatment SAE4340 Alloy Steel
40CrMnNiMo8-4 is another alloy which displays superior mechanical properties. This material is available in the Annealed or Quenched and Tempered conditions. 4340 is used many industries including oil and gas exploration, gear manufactring etc.
Comparable Standards:
| AISI/SAE | DIN | W.Nr. | AFNOR | JIS | BS | SIAU | GB,YB |
| 4340 | 40CrMnNiMo8-4 | 1.6562 | - | SNCM439 | - | NCM4 | 40CrNiMoA |
Chemical Analysis (%):
| C | Mn | Si | Cr | Ni | Mo | P | S |
| 0.37-0.44 | 0.50-0.80 | 0.15-0.40 | 0.60-0.90 | 1.60-1.90 | 0.20-0.30 | ≤0.035 | ≤0.040 |
Mechanical properties
| Tensile str. (N/mm2) | Yield point (N/mm2) | Elongation (%) | Contraction (%) | Impack work (J/cm2) | Hardness (HB) |
| 980 | 835 | 12 | 205 | 55 | 269 |
| Heat Treatment(°C) | Physical Properties | ||||
| Quenched | Tempered | Thermal Conductivity (20°C)Wm-1. ok-1 |
Typical Thermal expansion coefficient (20-200°C) | Specific Heat (20°C) |
Density (20°C) |
| 850 | 600 | 12 | 12.7 | ||
AISI 4340 Alloy Steel Round Bar
Applications:
Description:
1. AISI 4340/GB40CrNiMo/DIN 1.6511 alloy steel round bar
2. Hot rolled or forged condition, annealing, black or milled surface
3. Hardness: ≤220HBS;
4. Hot rolled technology: EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
5. Ultrasonic test standard: SPE1921-GR3, CLASS D/D or E/E
6. Production leadtime: 7~10 days
Competitive Advantage:
MITTEL Specializes in plastic mould steel, hot work mould steel,
cold work mould steel alloy steel and carbon structural steel, such as: P20, P20+Ni, 1.2714,
1.2083, 1.2316, H13, O1, D2, D3, D5, 1045, 1050, A3, 52100(EN31), 4137, 4140, 4340,
5140, 6150, 8620 and SCM420 for exporting over 20 countries now, such as: Brazil, India,
Turkey, Italy, Germany, Korea, Malaysia, Iran and so on.
Our company have introduced large-sized Vertical saw machines, horizontal saw machines,
Milling machines, Grinding machines and other advance equipments, we can export our
products by wholesales and retail sales, whole plate or strip is available. All our products
can meet the standards of DIN, AISI, JIS and GB, all the material should be inspected the
ultrasonic, hardness and others strict inspection process before the shipment!
Người liên hệ: Mr. Gao Ben
Tel: +86-18068357371
Fax: 86-0510-88680060
