Specifications

Hot forged round bars,
Diameter:140 mm
Length:4m and up or fix length
Ultrasonic Test:Sep1921 Class D/d

Commodity: Forged steel round bar

Grade: SCM440, delivery condition: as forged.

Similar garde:AISI4140,42CrMo4

Chemical Composition :C : 0.42 - 0.47% , Si : 0.20 - 0.35% , Mn : 0.70 - 0.90% ,P/S : MAX.0.020% , Cr : 0.95 - 1.20%,Ni : Max.0.20% , Mo : 0.18 - 0.25% , Cu : Max.0.35%.

Length:4880mm-5080mm,

Or 4m and up for random length

SIZE TOL : +2 / +6MM OF DIA.(Other steel grade and length can be talk between the customer and us)

Diameter:90mm-800mm

Diameter tolerance:+2/+6mm

Surface Condition:Black(No Grinding).

We will supply Rough Machined condition and Normalized/Annealed/Q/T Condition

according the customer requirement.

Straightness:3mm/M Max.

End bar must be saw cutting.

Ultra sonic test:  Sep1921-84 Class 3 C/c,D/d,E/e;

Other Steel Grade:

Carbon Steel:S20C,S26C,S35C,S45C,S50C,S55C,S60C;

Alloy Steel:SCM440,SCM420,SCM435,SCM415,SNCM220,SNCM439,SACM 645;

Tool Steel:SKD61,1.2714

Manufacturer:Jiangsu Zhuhong Forging Co.,Ltd.