Description:
1.Process:EAF LF VD2.Technique:Forged
3.Manufacturer. EF/ESR. OEM.
AISI 4340/DIN1.6511/EN24 alloy structural steel square bar
1.Chemicalcomposition:
C | Si | Mn | S | P | Cr | Mo |
0.38~0.45 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 | 0.90~1.20 | 0.15~0.25 |
2.Size:
round | diameter(mm) | length(mm) | |
14~900 | 2000~5800 | ||
plate/sheet | thichkness(mm) | width(mm) | length(mm) |
20~500 | 50~1500 | 2000~5800 |
3.Application:
- It is widelyused in high-strength forgings, such as traction gear, superchargerdrive gear, rear axle, the load of connecting rod, springclip;
- It alsomanufactured tool joints and finish tools which used for oil wellsbelow 2000m deep.
4. Mainfeatures: • Good purity andhomogeneity.
• Goodmachinability(Roughing, grinding anddrilling).
• Gooddimensional stability during heat treatment.
• Excellentpreparation for nitriding, both ionic and gaseous, inductionhardening to increase the mechanical properties.• Poorsolderability
5.Process:EAFLF VD Forged Heat Treatment (optional)
6.Deliverycondition:
Hot forged Rough machined(black surface after Q/T) Turned (optional)
7.Technicaldata:
According to the customer''srequirement of Chemical Composition, Physical Properties andMechanical Testing.
8.Heattreatment:Normalized / Annealed / Quenched /tempered


