High-precision CNC milling & turning for custom Q235A steel components. Low-cost, fast turnaround, and ISO-certified quality. Request a free quote today!
As a classic low-carbon structural steel, Q235A is a top choice for non-standard custom machined parts due to its excellent machinability, superior weldability, outstanding ductility, and high cost-efficiency.
Material Characteristics & International Equivalents
| Standard / Region | Material Grade | Core Properties & Features |
| China (GB/T 700) | Q235A | Yield strength $\ge 235\text{ MPa}$, tensile strength 370–500 MPa, balanced toughness and ductility. |
| USA (ASTM) | ASTM A36 / A283 Grade C | Universal structural steel with optimal machinability and welding performance. |
| Japan (JIS) | SS400 | General structural steel widely utilized in mechanical component fabrication. |
| Europe (EN / DIN) | S235JR (1.0038) / St37-2 | Standard carbon structural steel across European manufacturing. |
| International (ISO) | E235A | Globally recognized standard carbon structural steel grade. |
Available Precision Machining Processes
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CNC Turning: High-precision manufacturing for shafts, discs, and threaded components, maintaining tight tolerances within $\pm 0.01\text{ mm}$.
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CNC Milling: 3-axis, 4-axis, and 5-axis machining for complex cavities, structural plates, mounting brackets, and custom enclosures.
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Laser Cutting & Bending: High-speed sheet metal blanking, complex profiling, and precision bending for structural fabrications.
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Grinding & Wire EDM: Surface/cylindrical grinding for tight-flatness mating surfaces; wire EDM for intricate slots and keyways.
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Surface Treatments & Post-Processing:
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Protective Plating: Clear/yellow zinc plating, hot-dip galvanizing, hard chrome plating, and nickel plating.
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Coating & Finish: Black oxide treatment, powder coating, and abrasive sandblasting.
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Heat Treatment: Carburizing and surface quenching to dramatically enhance surface hardness while retaining core toughness.
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Key Industry Applications & Typical Parts
Industrial Automation & Robotics
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Characteristics: High structural stability, excellent threadability, and reliable assembly precision.
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Key Components: Machine baseplates, cylinder mounting blocks, sensor brackets, servo motor plates, linear guide positioning blocks, robotic gripper adapters, and module connection plates.
Automotive & Transportation
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Characteristics: High vibration resistance, seamless weldability, and exceptional cost efficiency.
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Key Components: Chassis stiffeners, sheet metal brackets, trailer linkage rings, inspection fixture bases, door hinge bushings, brake mounting plates, and steering shaft supports.
Heavy Machinery & Industrial Equipment
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Characteristics: Reliable load-bearing capacity, short processing cycles, and easy material procurement.
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Key Components: Bearing housings, gear blanks, connecting rods, pulley blanks, hydraulic cylinder end caps, flanges, blind plates, pin shafts, bushings, and equipment support legs.
Construction & Structural Engineering
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Characteristics: Superior weldability, toughness, and high structural elongation.
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Key Components: Steel connection plates, embedded anchor plates, tie-rod washers, curtain wall brackets, pipe clamps, and support shims.
Renewable Energy & Power Systems
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Characteristics: Readily adaptable to protective coatings for long-term outdoor weather resistance.
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Key Components: Solar mounting connectors, transformer housing plates, wind turbine tower fittings, electrical cabinet sub-frames, and cable tray brackets.
Tooling, Jigs & Fixtures
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Characteristics: Ideal for rapid prototyping and low-cost, high-volume production runs.
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Key Components: Custom non-standard nuts, specialized washers, alignment shims, locating pins, welded sub-assemblies, and fixture baseplates.
Custom Machining Service Capabilities
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Flexible Production: Seamless scaling from rapid single-piece prototyping and low-volume trials to full-scale automated CNC production runs.
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Strict Quality Control: Full material traceability (spectrometry/hardness checks) and 100% CMM dimensional inspection against engineering drawings.
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Turnkey Manufacturing: Integrated one-stop delivery covering raw material sourcing, CNC machining, heat treatment, surface finishing, and pre-assembly.
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