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Product Overview
Forged Square Steel Bars are premium solid steel bars produced by the hot forging process. The high-temperature forging refines the internal grain structure, eliminates porosity and segregation, and delivers exceptional mechanical strength, impact toughness, and structural uniformity. These bars are widely used in heavy machinery, tool manufacturing, construction, and energy industries for critical components requiring high reliability under load.
| Item | Details |
| Material Grades | Carbon steel (Q235, 45#), Alloy steel (42CrMo, 4140, 4340), Tool steel (H13, Cr12MoV), etc. |
| Cross-section Size | 20mm × 20mm to 600mm × 600mm (customizable) |
| Length | 1000mm–6000mm, or per customer’s drawing requirements |
| Tolerance | ±0.5mm (standard); tighter tolerances available upon request |
| Surface Treatment | Black finish, shot blasting, grinding, turning, or polishing |
| Heat Treatment | Normalizing, quenching & tempering, annealing, as per customer specifications |
● Refined grain structure via hot forging, ensuring superior toughness and wear resistance
● High dimensional stability and low residual stress, suitable for heavy-duty machining
● Customizable material grades, including carbon steel, alloy steel, and tool steel
● Strict quality control with full material traceability and third-party testing
● Improved fatigue strength, ideal for dynamic load-bearing components
Applications
Heavy machinery components: shafts, gears, connecting rods, and crankshafts
Tool and die manufacturing: mold bases, die blocks, and cutting tool blanks
Construction and engineering: structural supports, bridge components, and high-strength fasteners
Energy and power: turbine parts, valve bodies, and pressure vessel components
Automotive and transportation: heavy-duty axle parts and transmission components
Quality Assurance
All Forged Square Steel Bars undergo strict quality inspections, including chemical composition analysis, mechanical property testing (tensile strength, yield strength, impact toughness), ultrasonic testing (UT) for internal defects, and dimensional verification. We provide full material test reports (MTC) and accept third-party inspections such as SGS, BV, and ISO-certified audits.
Customization & Services
We offer one-stop OEM/ODM services, including custom material grades, sizes, heat treatment, surface processing, and precision machining (CNC turning, milling, drilling). Our technical team can provide tailored solutions based on your drawings and application requirements, ensuring the bars meet your exact specifications.
