Your Strategic Factory Partner for High-Tolerance Steel Solutions
Tianjin YaDa Metal Co., Ltd (YaDa Industry) is a premier Chinese manufacturer specializing in high-precision cold drawn steel bars. With over 20 years of engineering expertise and a fully integrated in-house production line, we provide global industries with standard and complex custom-profile steel solutions that meet ASTM, GB, and JIS standards.
We specialize in transforming raw steel into high-value components with a focus on dimensional accuracy and surface integrity.
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Standard Profiles: Round, Square, Flat, Hexagonal, and Triangle Bars.
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Specialty Profiles: Trapezoid, Segment Steel, and Custom-Shaped Bars tailored strictly to your 2D/3D technical drawings.
| Specification | Details |
| Material Grades |
Carbon: 1018, 1020, 1045, A36 Alloy: 4140, 5140, 20CrMnTi, 4340 Stainless: 304, 316, 17-4PH |
| Standard Compliance | ASTM A108, EN 10277, JIS G3101, GB/T 905 |
| Size Range |
Round: Ø4-102mm | Square: 4×4-90x90mm Hex: S4-101mm | Flat: (3-60)x(4-110)mm |
| Special Shapes | Triangle, Trapezoid, Segment, and Custom Drawing Profiles |
| Tolerance | h9, h10, h11 |
| Supply Condition | Cold Drawn, Annealed, Polished, Straightened, Cut-to-length |
Why Choose YaDa Cold Drawn Solutions?
1. Integrated One-Stop Production
Unlike traders, we control the entire process in-house: Peeling → Head Pointing → Annealing → Auto-Phosphating → Cold Drawing → Straightening → Polishing → Precision Cutting. This ensures 100% quality traceability and shorter lead times (as fast as 10–15 days).
2. Advanced Surface Treatment
Our fully automated Phosphating & Saponification line is an eco-friendly system that provides a superior lubrication coating, resulting in a scratch-free surface and enhanced mechanical performance.
3. Cost-Efficiency through Customization
Our custom-shaped steel bars are engineered to be “Ready-to-Assemble.” By matching the profile to your final part’s cross-section, we help you:
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Reduce material waste by up to 30%.
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Eliminate expensive secondary machining steps.
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Accelerate your production cycle.
Global Industry Applications
Our products are trusted by manufacturers in over 14 countries (USA, Germany, Italy, Israel, etc.) for:
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Automotive: Transmission gears, shafts, and steering components.
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Machinery: Linear guides, slide rails, and hydraulic cylinder rods.
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Fasteners: High-strength bolts and specialized hardware.
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Construction: High-precision structural connectors.
Quality Assurance & Service
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100% Inspection: Every batch undergoes strict dimensional and surface checks.
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MTC Provided: Full Mill Test Certificates included with every shipment.
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Free Samples: Available for qualified projects to ensure technical compatibility.
