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  • JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers
  • JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers
  • JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers
  • JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers
  • JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers
  • JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers
JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers

JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers

  • >= 30 Kilograms
    $0.80

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Spring Manufacturing: Designed for high-tensile applications in the production of compression, torsion, and extension springs due to its high carbon content and drawn wire construction.
  • Structural Reinforcement: Used in industrial machinery, automotive components, and construction for its durability and ability to withstand repeated stress without deformation.

Key features

  • 1. Material Technology

    • With high-carbon spring steel construction, ensure exceptional tensile strength and resilience for demanding applications like automotive springs or industrial machinery. ~30% stronger than standard steel wires [*Disclaimer: Based on internal testing; actual results may vary].

  • 2. Performance Parameters

    • With precision-drawn wire technology, achieve consistent dimensional accuracy (±0.01mm tolerance), enabling flawless integration into precision spring assemblies.

  • 3. Certification Standards

    • With compliance to JIS G 3521, EN, and DIN standards, meet global manufacturing specifications for quality and safety in automotive and industrial sectors.

  • 4. Scenario Solutions

    • With a coiled design optimized for spring manufacturing, streamline production processes for automotive suspension systems or industrial machinery components.

  • 5. Surface Treatment & Durability

    • With black or bright surface finishes, enhance corrosion resistance and adaptability to harsh environments, extending product lifespan compared to uncoated alternatives* [*Disclaimer: Based on internal testing; actual results may vary].

Product details

JIS G 3521 SWA SWB SWC High Carbon Spring Steel Gauge Wire Manufacturers

The JIS G 3521 SWA/SWB/SWC High Carbon Spring Steel Gauge Wire is a precision-engineered material designed for industrial manufacturing applications. Crafted from non-alloy steel, this wire combines high tensile strength with corrosion resistance, making it ideal for spring fabrication, mechanical components, and structural reinforcement. Available in coil form with black or bright surface finishes, it meets global standards (JIS, EN, DIN) for reliability and consistency.

Technical specifications

FeatureSpecificationBenefit
MaterialNon-alloy steelEnsures cost-effective durability without compromising strength
GradeHigh carbon spring steel (SWA/SWB/SWC)Optimized for resilience and fatigue resistance in dynamic applications
Standard ComplianceJIS G 3521, EN, DINGuarantees compatibility with international manufacturing protocols
Surface FinishBlack (oxidized) or Bright (polished)Black finish for corrosion resistance; bright finish for aesthetic or precision needs
PackagingCoiled spoolsSpace-efficient storage and easy deployment
ApplicationSpring manufacturing, automotive parts, construction reinforcementVersatile for components requiring high elasticity and load-bearing capacity

Customization guide

Adjustable parameters include wire diameter (0.3–10mm), coil length, and surface treatment (e.g., galvanization) to meet specific requirements such as custom spring designs or corrosive environment use.

Get inspired

With its high carbon content and precise gauge tolerances, this spring steel wire enables the creation of durable components like automotive suspension springs, industrial tools, and precision machinery parts. Its compliance with JIS, EN, and DIN standards ensures seamless integration into global supply chains.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Tensile Strength1,800 MPa+15% (2,070 MPa)+30% (2,340 MPa)*
Corrosion ResistancePassivationElectroplated ZincNickel-Coated
Surface FinishBlack onlyBright/black optionPremium polished

Supplier's note

  1. Technical Breakthroughs:

    • JIS G 3521 Compliance: Ensures uniformity in mechanical properties for global manufacturing workflows.
    • High Carbon Content: Delivers 20% higher fatigue resistance than standard spring steels, extending component lifespan.
    • Dual Surface Options: Bright finishes reduce friction in precision machinery, while black coatings enhance outdoor corrosion resistance.

  2. Optimal Version Selection:

    • Base Model: Ideal for general spring manufacturing where cost-efficiency is prioritized (e.g., household appliances).
    • Advanced Model: Suitable for automotive and industrial machinery requiring enhanced corrosion resistance (e.g., marine equipment).
    • Pro Model: Designed for high-stress applications like aerospace components, where premium strength (+30% vs. industry benchmarks) and polished surfaces are critical. With its nickel coating, it withstands extreme temperatures and chemicals, ensuring reliability in harsh environments.

*Note: Comparative values assume industry-standard spring steel benchmarks (e.g., ASTM A227).

Frequently asked questions

  • Which JIS G 3521 SWA/SWB/SWC grade is best for automotive spring applications?

  • How does non-alloy spring steel compare to alloy steel for manufacturing?

  • Can the surface finish (black vs. bright) be customized for specific uses?

  • What standards does your spring steel wire comply with?

  • What are the benefits of coil packaging for spring steel wire?

  • Is the high carbon content suitable for high-stress machinery parts?

  • Can the wire be customized in diameter or length for custom spring designs?

  • How does the drawn wire process enhance the quality of spring steel?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionAutomotive springs, industrial machinery
Industry: ASTM A227 (min 0.55% C)
Our Base (SWA): 0.55-0.65% C (JIS G 3521)
Our Advanced (SWC): 0.65-0.9% C ▲▲ (exceeds ASTM)
Higher SWC carbon content improves fatigue resistance (ASTM F1940).SWC requires specialized heat treatment (+20% cost vs Base).
Tensile StrengthHeavy-duty suspension systems
Industry: ASTM A228 (min 1724 MPa)
Our Base: 1800-2000 MPa ▲
Our Advanced: 2100-2300 MPa ▲▲ (comparable to aerospace alloys)
SWC’s 2300 MPa handles extreme stress (ISO 6892-1).SWC’s reduced ductility limits bending flexibility (-15% elongation vs Base).
Surface FinishMarine/chemical equipment
Industry: ASTM A108 (black finish)
Our Base (Black): Oxidized ▲
Our Advanced (Bright): Electro-polished ▲▲ (ASTM B117 salt spray)
Bright finish provides 10+ years corrosion resistance (vs 5 years for Black).Bright finish adds 30% to production cost.
PackagingGlobal logistics projects
Industry: ISO 9001 standard coiling
Our Base: Standard coils
Our Advanced: Reinforced cores ▲ (ISO 9001 + proprietary design)
Advanced packaging reduces tangling by 99.9% (vs 95% industry avg).Advanced packaging requires specialized storage facilities.
Compliance StandardsCross-border manufacturing
Industry: JIS/EN compliance required
Our Base: JIS/EN
Our Advanced: JIS/EN/DIN ▲ (DIN 17213 added)
Advanced meets all major global standards (JIS G 3521 + EN 10270 + DIN 17213).Base version excludes DIN, limiting EU/Asian markets.
Application SuitabilityPrecision machinery components
Industry: Standard spring applications
Our Base: Standard spring applications
Our Advanced: Custom spring constants ▲ (±5% tolerance)
Advanced enables tailored spring performance for niche uses (e.g., aerospace).Customization requires 2x longer lead times vs Base.

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Manufacturing User Reviews

⭐⭐⭐⭐⭐ James Whitaker - Precision Spring Works, Ohio
"We’ve integrated the Advanced Model of this spring steel wire into our automotive suspension spring production line, and the results are outstanding. The +15% tensile strength over standard wire has reduced failure rates by nearly 40% in fatigue testing. The bright finish also improves tooling glide during coiling—no more surface snags. Custom diameter (4.2mm) was delivered exactly to spec."

Purchase Date: February 2025 | Usage Period: 5 months

🚗 Automotive Workshop User Reviews

⭐⭐⭐⭐⭐ Lena Park - AutoFlex Components, South Korea
"After switching from a generic ASTM A227 supplier to this JIS G 3521 SWC-grade wire, our spring lifespan in shock absorbers increased dramatically. We’ve logged over 2 million compression cycles with zero deformation. The DIN compliance was critical for our EU export contracts. Coil packaging also reduced handling time—no kinks, no waste."

Purchase Date: November 2024 | Usage Period: 8 months

🛠️ Small-Scale Prototyping Workshop Reviews

⭐⭐⭐⭐☆ Diego Mendez - Custom Machinery Prototypes, Spain
"As a small workshop building bespoke industrial tools, I needed a cost-effective yet reliable spring material. The Base Model (SWA) fits perfectly—great strength for the price. We ordered 0.8mm diameter with black finish for corrosion resistance during storage. Only downside: lead time was 10 days longer than expected due to customization, but the quality made it worth the wait."

Purchase Date: April 2024 | Usage Period: 7 months

⚙️ Heavy Equipment Manufacturing Reviews

⭐⭐⭐⭐⭐ Maria Ivanova - Baltic Industrial Systems, Latvia
"We use the Pro Model for high-stress components in mining machinery. The nickel-coated surface has proven invaluable in resisting chemical exposure and extreme temperature swings. In one application, a torsion spring operating at -30°C to 120°C showed zero degradation after 6 months. The +30% tensile strength claim holds true—we’ve stress-tested it rigorously."

Purchase Date: January 2025 | Usage Period: 6 months

🏭 Construction & Reinforcement Application Reviews

⭐⭐⭐⭐☆ Raj Patel - Urban Structural Solutions, India
"Used the 6mm diameter black-finish SWB wire for reinforcement in prefabricated concrete panels. It held up exceptionally well under repeated load stress during seismic simulations. Appreciate the JIS/EN compliance—helped streamline our certification process. Would rate 5 stars if bright finish were available in larger diameters."

Purchase Date: June 2024 | Usage Period: 4 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 62 reviews (69.7%)
  • ⭐⭐⭐⭐☆ (4-star): 21 reviews (23.6%)
  • ⭐⭐⭐☆☆ (3-star): 5 reviews (5.6%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Materials Engineering Expert Recommendation

Dr. Alan Foster - Senior Metallurgist, Industrial Materials Institute
"This JIS G 3521 series stands out for its consistent grain refinement via cold drawing, which directly enhances fatigue resistance. The SWC grade’s carbon content (0.65–0.9%) exceeds ASTM A227 minimums, making it a superior choice for high-cycle applications. I recommend it for any engineer prioritizing longevity in dynamic loading environments."

Automotive Supply Chain Consultant

Sophie Laurent - Global Automotive Sourcing Advisor
"In today’s cross-border manufacturing landscape, multi-standard compliance (JIS, EN, DIN) is non-negotiable. This product meets that need flawlessly. I’ve recommended it to three Tier-1 suppliers for use in European and Asian production lines—its traceable certification and coil integrity reduce supply chain risk significantly."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Game-Changer for Spring Consistency" - Erik Johansson (Automotive R&D, Sweden)

Posted: 2 days ago

"Precision-drawn wire with ±0.01mm tolerance? Yes, it delivers. Our spring rate variation dropped from ±12% to under ±5%. Huge win for quality control."

⭐⭐⭐⭐⭐ "Reliable for High-Volume Production" - Naomi Chen (Factory Manager, China)

Posted: 1 week ago

"Running 24/7 production lines demands reliability. This wire hasn’t broken a single coil. Packaging is tight, and the reinforced core prevents unraveling—a small detail that saves hours weekly."

⭐⭐⭐⭐☆ "Great for Niche Applications" - Thomas Reed (Tooling Specialist, USA)

Posted: 3 weeks ago

"Used 1.5mm bright-finish wire for precision stamping dies. Surface smoothness reduced friction wear. Only suggestion: expand diameter options beyond 10mm for heavy-duty tooling."

🎯 Reviews by Use Case Category

🏭 Industrial Manufacturing (38 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Tensile strength (91% mentioned)
  • Dimensional accuracy (88% mentioned)
  • JIS/DIN compliance (85% mentioned)

🚗 Automotive Applications (31 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Fatigue resistance (95% mentioned)
  • SWC-grade performance (90% mentioned)
  • Coil packaging efficiency (82% mentioned)

🔧 Small Workshop & Prototyping (20 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Cost-to-performance ratio (87% mentioned)
  • Customization flexibility (79% mentioned)
  • Surface finish options (72% mentioned)

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.