Specifications

SAE 4140
1.Delivery time:7~10 days
2.Ut test grade:SEP1921-84 Class C/c.

SAE 4140

1.Grade:4140 round steel bar   

2.Size: 20-400*1000-5800mm.

   

 

3.Factory state: annealed,hot rolled.

 

 

4.Chemical composition(for reference only):

C	Si	Mn	P	S	Cr	Mo
0.38-0.45	≤0.4	0.6-0.9	≤0.035	≤0.030	0.9-1.2	0.15-0.30

 

 

5.Characteristic application:

Use for general machinery parts ,spare pares and the others