Specifications
1.AISI 4340 forged steel round bar
2.Dia: 100mm-1000mm
3.Length: 3000mm-12000mm
4.Forged ratio: no less than 3:
AISI 4340 forged steel round bar,half round steel bar
Material: | AISI 4340 forged steel round bar |
Diameter: | 100mm-1200mm |
Length: | 3000mm-12000mm Straightness: 3mm/M max |
Process: | EAF + LF + VD + Forged + Heat Treatment (optional) |
Delivery condition: | Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) |
Delivery Time: | 30-45 days |
MOQ: | 20 tons |
Heat treatment: | Normalized / Annealed / Quenched / tempered |
Technical Data: | According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing |
Test: | Ultrasonic test according to SEP 1921-84 G3 C/c |
Marking: | Grade, heat NO. length will be stamped one each bar with required color |
Payment: | 30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight |
Application: | Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. |
Chemical composition:
Grade | C | Si | Mn | P≤ | S≤ | Cr | Ni | Mo |
40CrNi2Mo | 0.37-0.45 | 0.15-0.35 | 0.5-0.8 | 0.030 | 0.030 | 0.6-0.9 | 1.25-1.65 | 0.15-0.25 |
