Discover the unparalleled quality of SCM440, SCM435, 4130, 4140, 4145 forged bars. Perfectly crafted forging shafts and parts for your needs.
Premium Forged Alloy Steel Round Bar 4140, engineered for exceptional performance.
High-grade 1.7225 steel for superior durability.
Expertly crafted hot forging steel bars designed for strength and reliability.
Precision-forged parts to meet your exact specifications.
SCM440, SCM435, 4130, 4140, 4145 forged bars: the ultimate in forged metal quality.
1. Chemical Composition (%):
| Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
| 42CrMo4 |
0.38-0.45 |
0.17-0.37 |
0.40-0.70 |
≤0.035 |
≤0.035 |
0.90-1.20 |
0.15-0.25 |
| 1.7225 |
0.38-0.45 |
≤0.40 |
0.60-0.90 |
≤0.025 |
≤0.035 |
0.90-1.20 |
0.15-0.30 |
| 4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
≤0.035 |
≤0.040 |
0.80-1.10 |
0.15-0.25 |
2. Available Sizes:
Round: Diameter 1
6
- 1000mm
16
mm-3
5
0mm with hot-rolled supply condition;
200-1000mm with forged supply condition.
3.
Delivery Condition : Hot rolled or forged, Peeled or black surface, annealed or QT (Quenched and Tempered).
4. Applications:
Ideal for statically and dynamically stressed components in vehicles, engines, and machines. Perfect for parts with larger cross-sections like crankshafts and gears.
5. Heat Treatment:
Soft Annealing: Heat to 680-720°C, then cool slowly.
Hardness after annealing: Max. 241 HB.
Hardening: 820 - 850°C.
Normalizing Temperature: 840-880°C.
Tempering: 540-680°C.
6. Inspection: 100% Ultrasonic inspection according to test standards: SEP1921-84, GR.3 CLASS C/C.
7. Packing Situation: Standard seaworthy packing or as per customer requirements.
8. Delivery Time: 30 days after order confirmation.
9. Process: EAF + LF + VD (necessary) + UT + Peeled (optional) + Turned (optional) + Heat Treatment (optional).
Keywords: forged steel bar, forging parts, forging rings, 4140 forged steel bar, forged round bars, hot forging, steel forging, round bar 4140, 42CrMo4 steel bar, forging, forged products.
Audited Supplier 
){kind=link}
){kind=link}