Quick Details
Packaging & Delivery
Packaging Details: |
seaworthy packing; 20ft: GW:17.5T; (5.80mX2.13mX2.18m,) 40ft: GW:22T; (11.8mX2.13mX2.18m,) |
Delivery Detail: |
4~7days after the order is confirmed |
Specifications
1.6582 steel 34CrNiMo6 steel round bars aisi 4340 steel
1.A/N/Q+T
2.Sample free
3.Black or Bright
4.Dia Max:800mm
Product Description
Hot rolled 1.6582 steel 34CrNiMo6 steel round bars aisi 4340 steel | |||||||||
1. Specification of aisi 4340 steel | |||||||||
Round bar |
Diameter(mm) |
Length (mm) |
| ||||||
20~800 |
3000~5800 |
| |||||||
Plate |
Thickness(mm) |
Width (mm) |
Length (mm) | ||||||
Max:800 |
205~800 |
2000~4000 | |||||||
The specification can be customized. | |||||||||
2. Chemical compositon(%) of aisi 4340 steel | |||||||||
Number |
C |
Si |
Mn |
Cr |
Mo |
P |
S |
Ni | |
GB |
40CrNiMoA |
0.37~0.44 |
0.17~0.37 |
0.50~0.80 |
0.6~0.9 |
0.15~0.25 |
≤0.035 |
≤0.035 |
1.25~1.65 |
AISI |
4340 |
0.38~0.43 |
0.15~0.35 |
0.60~0.80 |
0.7~0.9 |
0.20~0.30 |
≤0.035 |
≤0.040 |
1.65~2.00 |
EN (DIN) |
1.6562 |
0.37~0.44 |
0.15~0.40 |
0.50~0.80 |
0.6~0.9 |
0.20~0.30 |
≤0.035 |
≤0.040 |
160~1.90 |
3. Characteristic of aisi 4340 steel | |||||||||
1.6562 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. | |||||||||
4.Mechanical properties of aisi 4340 steel | |||||||||
Tensile str. (N/mm2) |
Yield point (N/mm2) |
Elongation (%) |
Contraction (%) |
Impack work (J/cm2) |
Hardness (HB) | ||||
980 |
835 |
12 |
205 |
55 |
269 |
6. Main application of aisi 4340 steel: |
(1) Generally used for producing the important parts with high strength and good plastic. |
(2) After nitrogen treatment, used for producing the important parts with special performance |
requirements, such as shafts, gears, fasteners, bolt of large dia steamer etc. |
Annual output :300000Tons |
Cutting service provided |
Workshop is equipped with the most advanced CNC grinding machine, CNC milling machine, |
Vertical and Horizontal band saw cutting machine, Max. 30MT Loading Cranes, ultrasonic Test machines... |
These equipments are manipulated with professional engineers with many years work experiences. |
50000T steels in stock |
4340 Steel Round Bar each step is strictly controlled to make sure the products are high quality! |
Steelmaking view |