4140 Forged Steel Roller Shaft Parts

• Customization: Available
• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB
• Model NO.: forged parts
• Composition: Alloy Steel or Carbon Steel
• Technique: Forged
• Shape: Bar
• Surface Treatment: Rough Machining or Black Surface
• Special Use: Cold Heading Steel, Mold Steel
• Application: Structural Steel Bar
• Ready Stock Grade: 1045 4140 Forged Steel Bar
• Delivery Time of New Goods: 30days
• Heat Treatment: Qt/Normalized/Annealing
• Rough Machining Diameter Tolerance: -0/+0.5mm
• Transport Package: Seaworthy Packaging
• Specification: 200mm-1000mm
• Trademark: Shandong
• Origin: China
• Production Capacity: 5000tons

Product Description

Premium Quality SCM440 SCM435 4130 4140 4145 Forged Bars, Forging Shaft, and Forged Parts
High-Strength Forged Alloy Steel Round Bar 4140
Specification: 1.7225
Expertly Crafted Hot Forging Steel Bar
Precision Forged Parts
Superior SCM440 SCM435 4130 4140 4145 Forged Bars
1. Comprehensive 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. Wide Range of Available Sizes:
Round: Diameter 1
6
- 1000mm
16
mm-3
5
0mm available in hot rolled supply condition;
200-1000mm available in forged supply condition
3. Delivery Conditions:
Multiple Delivery Conditions : Hot Rolled or Forged, Peeled or Black Surface, Annealed or QT.
4. Versatile Applications:
Ideal for statically and dynamically stressed components in vehicles, engines, and machines. Suitable for larger cross-sections, crankshafts, and gears.
5. Precise Heat Treatment:
Soft Annealing: Heat to 680-720°C, then cool slowly.
Post-Annealing Hardness: Max. 241 HB
Hardening Temperature: 820 - 850 °C
Normalizing Temperature: 840-880°C
Tempering Temperature: 540-680°C
6. Rigorous Inspection: 100% Ultrasonic Inspection according to SEP1921-84, GR.3 CLASS C/C standards.
7. Secure Packing Situation: Standard Seaworthy Packing or Custom Packing as Required
8. Prompt Delivery Time: Approximately 30 Days after Order Confirmation
9. Advanced Process: State-of-the-Art Process: EAF+LF+VD (as necessary) +UT+ Optional Peeling +Optional Turning + Optional Heat Treatment

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 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 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