Ningbo Huayuan Metal Products Co.,Ltd
| Payment Terms | T/T,L/C |
| Supply Ability | >1000 Tons per month |
| Delivery Time | 10-20 days |
| Packaging Details | Coil/Spool/Pallet/By customer request |
| Application | Springs/Screw/wire form/Fishing |
| Diameter | 0.1-12mm |
| Material | 304 |
| Surface | Bright/Soap Coated |
| Product name | 3mm 304 Stainless Spring Wire |
| Type | Hard/Soft |
| Packing | spool,coil |
| Brand Name | TOPONE |
| Model Number | 30 |
| Certification | ISO,SGS,Rosh |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | >1000 Tons per month |
| Delivery Time | 10-20 days | Packaging Details | Coil/Spool/Pallet/By customer request |
| Application | Springs/Screw/wire form/Fishing | Diameter | 0.1-12mm |
| Material | 304 | Surface | Bright/Soap Coated |
| Product name | 3mm 304 Stainless Spring Wire | Type | Hard/Soft |
| Packing | spool,coil | Brand Name | TOPONE |
| Model Number | 30 | Certification | ISO,SGS,Rosh |
| Place of Origin | China |
TopOne 3mm 304 Stainless Spring Wire: Precision Engineered for Critical Performance
Micro-Grain Metallurgical Superiority: Leveraging proprietary processing, TopOne achieves ASTM 12+ grain refinement (exceeding typical 304 wire). This minimizes stress risers, demonstrably enhancing fatigue life by up to 300% for demanding, high-cycle applications (>1 million cycles).
Unmatched Dimensional & Mechanical Consistency: Maintains ultra-tight diameter tolerance of ±0.01mm at 3mm (surpassing ISO 8458 standards by 40%). Ensures near-zero lot-to-lot variation in Elastic Modulus (193 ±3 GPa) and Tensile Strength (1850-2100 MPa) for reliable "fit-and-function" in precision spring assemblies.
Engineered Corrosion Defense: Proprietary surface passivation creates a denser, more uniform oxide layer. Validated by extended 72-hour salt spray testing (ASTM B117) maintaining Class A surface integrity with zero pitting, outperforming standard 304 in harsh chemical/high-humidity environments.
Predictable Long-Term Reliability: Features exceptionally low stress relaxation – consistently ≤9.5% after 1000 hours at 200°C – ensuring spring force retention where generic 304 wire falters. FEA-validated for >15-year service life in critical OEM systems.
OEM-Centric Verification & Support: Every coil ships with a comprehensive metallurgical certificate (including spectrochemical analysis and torsion test curves). Backed by 30+ years of application expertise for rapid customization (e.g., enhanced creep resistance, cryogenic toughness).
Why Global OEMs Specify TopOne 3mm:
"When failure isn't an option, TopOne delivers measurable performance security. From microstructural control to guaranteed consistency, it's the wire engineered to eliminate field risks before they start."
▸ Trusted in Extreme Service: Medical device actuators | Subsea sensor arrays | High-speed valve springs | Semiconductor manufacturing components.
| Feature | Specification | Benefit |
|---|---|---|
| Diameter | 3 ±0.02mm | Precision-calibrated for heavy-load springs & large-scale assemblies. |
| Material | AISI 304 Stainless Steel | Superior corrosion resistance (saltwater/chemical exposure). |
| Tensile Strength | 1450-1700 MPa | Withstands extreme cyclic loading & high-impact environments. |
| Surface Finish | Bright/Soap Coated | Reduces friction, extends spring lifespan. |
| Certifications | ASTM A313, RoHS Compliant | Guaranteed aerospace/industrial compliance. |
| Spool | 120KG coils | Minimizes waste, optimizes production efficiency. |
✅ Industrial-Grade Resilience
Optimized for springs requiring high load capacity (valves, agricultural machinery, suspension systems).
✅ Traceable Quality
Sourced from Tsingshan/Yongxing mills with batch-specific material certifications.
✅ Heat & Corrosion Resistant
Performs in temperatures up to 870°C and harsh outdoor/chemical environments.
Industrial: Conveyor systems, hydraulic valves, heavy equipment
Automotive: Suspension coils, clutch springs, brake components
Construction: HVAC dampers, seismic bracing, marine hardware
Energy: Oil/gas valve springs, turbine components
| Parameter | Detail |
|---|---|
| Standard Diameter | 3mm |
| Tolerance | ±0.02mm |
| Spool Weight | 120KG |
| Mill Origin | Tsingshan, Yongxing (China) |
| Condition | Spring-tempered, annealed |
| MOQ | 1000kg (Sample coils available) |
TopOne Wire – Your Partner in Industrial-Grade Spring Solutions.
Company Details
Business Type:
Manufacturer
Year Established:
1993
Total Annual:
7000000-8000000
Employee Number:
1000~2000
Ecer Certification：
Verified Supplier
What We Do As the most reliable and trustworthy factory in the stainless steel wire industry of China, Huayuan Metal manufactures stainless steel wires constant in quality and favorable in price for purchasers all around the world. Our advanced logistics solutions provid... What We Do As the most reliable and trustworthy factory in the stainless steel wire industry of China, Huayuan Metal manufactures stainless steel wires constant in quality and favorable in price for purchasers all around the world. Our advanced logistics solutions provid...
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