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Description:

1.Process:EAF LF VD
2.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