5140 alloy steel:
1,Production Specification:
Material: | 41cr4 alloy steel bar |
Diameter: | 20mm-600mm |
Length: | 3000mm-7000mm 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: | 10-45 days |
MOQ: | 5 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 T\T; 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. |
2, Chemical Composition
C | Si | Mn | P | S | Cr |
0.38 - 0.45 | max 0.4 | 0.6 - 0.9 | max 0.035 | max 0.035 | 0.9 - 1.2 |
3,Properties:
Brinell hardness (HBW): (+S) | 255 |
Brinell hardness (HBW): (+A) | 241 |
4. Plant image:
Technical process: