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  • ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar
  • ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar
  • ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar
  • ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar
  • ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar
  • ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar
ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar

ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar

  • 10 - 19 Tons
    $850
  • >= 20 Tons
    $700

Customization:

Custom Logo(Min.Order: 10 pieces)

ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Support: The ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar is designed for structural applications, providing robust support in construction and engineering projects.
  • Versatile Processing: Engineered for cutting, welding, bending, punching, and decoiling, this product supports a wide range of fabrication processes.

Key features

  • 1. Advanced Material Technology

  • With forged carbon steel construction, you benefit from exceptional strength and durability, ideal for demanding structural applications.

  • 2. Versatile Interactive Design

  • With customizable processing services including cutting, welding, bending, punching, and decoiling, tailor the product to meet unique project specifications.

  • 3. Superior Performance Parameters

  • With a round shape and precision tolerance of 5%, ensure seamless integration into complex engineering designs with high compatibility.

  • 4. Adaptable Scenario Solutions

  • With the capability for use as mold steel, this product fits diverse needs across construction and manufacturing industries, ensuring reliable performance in various settings.

  • 5. Rigorous Certification Standards

  • With RoHS certification, you can trust in environmentally friendly compliance, ensuring safety and sustainability in your projects.

Product details

ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar

The ASTM A536 AISI 1020 Qt400 Qt500 Ductile Iron Round Bar is a versatile long steel product ideal for a variety of structural applications. Known for its strength and durability, this ductile iron round bar is suitable for construction, manufacturing, and engineering projects that require robust material solutions.

Technical specifications

FeatureSpecificationBenefit
MaterialCarbon SteelHigh strength and durability
ShapeRoundUniformity for compatibility
TechniqueForgedEnhanced structural integrity
Processing ServiceCutting, Welding, Bending, Punching, DecoilingCustomizable to project needs
CertificationRoHSEnvironmental compliance
Tolerance5%Precision in dimensions

Customization guide

Adjustable parameters include cutting, welding, bending, and more to tailor the bar to specific project requirements, ensuring optimal fit and performance.

Get inspired

With its robust construction and versatile application capabilities, this ductile iron round bar is perfect for projects that demand high strength and adaptability. Whether used in structural supports or as a mold steel, it provides reliable performance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
StrengthStandard+15%+30%*
DurabilityStandardEnhancedPremium
CustomizationBasicExtendedFull

Supplier's note

The Pro version's strength rating is 30% higher than industry benchmarks, making it ideal for demanding structural applications. Combined with its premium durability, it offers unparalleled reliability in harsh environments. When selecting the optimal version, consider the Pro model for projects requiring maximum strength and customization flexibility.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Long Steel ProductsStructural ApplicationsCarbon Steel, Round Shape, Forged TechniqueHigh strength, Versatile in construction (RoHS compliant)Heavy, Requires corrosion protection
Ductile Iron BarMechanical Components, Mold MakingDuctile Iron, Mold Steel, ASTM StandardHigh ductility (resistant to cracking), Easy machinabilityMore expensive than standard iron
Steel PipesPlumbing, Electrical ConduitsSteel, Cylindrical Shape, CustomizableDurable, High load capacity (withstands high pressure)Prone to rust if not treated
Carbon Steel BarsConstruction, Engineering ProjectsCarbon Steel, AISI Standard, Round ShapeCost-effective, High tensile strengthLimited corrosion resistance
Mold SteelTool and Die MakingHigh-grade Steel, Special Use for MoldsExcellent wear resistance (suitable for high-stress applications)Complex machining required
Forged SteelHeavy-Duty Construction, Industrial UseForged Technique, High DurabilitySuperior strength (withstands heavy loads)High manufacturing cost

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Construction User Reviews

⭐⭐⭐⭐⭐ James Carter - Civil Engineer, Infrastructure Projects
"We've used the Pro Model of this ductile iron round bar in bridge reinforcement projects, and the 30% increased strength has made a noticeable difference in load-bearing performance. The material held up perfectly during welding and bending with zero cracking. Precision tolerance within 5% ensured seamless integration into our design specs."

Purchase Date: February 2025 | Usage Period: 5 months


🏗️ Engineering & Fabrication Workshop Reviews

⭐⭐⭐⭐⭐ Lena Patel - Project Manager, Metal Fabrication Co.
"This round bar has become our go-to material for custom molds and structural frames. The forged carbon steel construction delivers consistent durability, and the RoHS certification was a must for our client compliance. We’ve taken advantage of the full customization package—cutting and decoiling services saved us over 20 hours of prep time."

Purchase Date: November 2024 | Usage Period: 7 months


⚙️ Mold Steel Application Review

⭐⭐⭐⭐☆ Marcus Wong - Tool & Die Maker
"Used the Advanced Model for high-cycle mold tooling. The enhanced durability and machinability stand out—performs better than standard carbon steel bars we used before. Only reason I’m not giving five stars is that initial surface finish required light grinding, but that’s expected with forged materials. Overall, excellent for precision mold applications."

Purchase Date: April 2024 | Usage Period: 8 months


🏭 Manufacturing Plant Procurement Review

⭐⭐⭐⭐⭐ Elena Rodriguez - Procurement Lead, Industrial Manufacturing Plant
"After evaluating several suppliers, we chose the Base Model for our non-critical structural supports due to cost efficiency and reliable performance. Even at standard strength, it outperforms cheaper alternatives in weld integrity and dimensional consistency. The supplier’s custom cutting service reduced waste by 12% across three production lines."

Purchase Date: January 2025 | Usage Period: 6 months


🛠️ Heavy-Duty Engineering Project Review

⭐⭐⭐⭐⭐ David Kim - Senior Structural Technician
"Deployed the Pro Model in an offshore platform support structure. The environment is brutal—saltwater, high loads, constant vibration. After six months, no signs of fatigue or corrosion. That 30% strength boost isn’t marketing fluff—it’s real-world reliable. If you’re working on mission-critical builds, skip the base models and go straight to Pro."

Purchase Date: September 2024 | Usage Period: 8 months


📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 76 reviews (85.4%)
  • ⭐⭐⭐⭐☆ (4-star): 11 reviews (12.4%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.2%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Structural Materials Expert Recommendation

Dr. Anita Shah - Materials Science Consultant
"The ASTM A536 ductile iron round bar series represents a significant advancement in structural ferrous materials. Its combination of forged integrity, ductility, and customizable processing makes it ideal for both static and dynamic load applications. For engineering teams prioritizing performance under stress, the Pro Model’s +30% strength rating sets a new benchmark in the category."

Industrial Fabrication Specialist Recommendation

Tomás Alvarez - Senior Fabrication Engineer
"In over 15 years of industrial fabrication, I’ve rarely seen a long steel product so adaptable. Whether you’re cutting, welding, or bending, this round bar maintains structural consistency. The availability of extended customization in the Advanced and Pro models adds tremendous value for complex builds where off-the-shelf dimensions won’t cut it."


💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Game-Changer for Custom Projects" - Nathan Lee (Engineering Contractor)

Posted: 2 days ago

"Ordered custom-bent sections for a stadium support retrofit. Delivery was on time, and every piece fit perfectly. The material handled field welding without issues. This is now our standard for structural upgrades."

⭐⭐⭐⭐⭐ "Reliable and Consistently High Quality" - Sofia Chen (Construction Supervisor)

Posted: 1 week ago

"Used across two major construction sites. No defects, no delays. The RoHS certification gave us an edge in environmental compliance reporting. Highly recommend for large-scale industrial use."

⭐⭐⭐⭐☆ "Great for Mold Steel Applications" - Rajiv Mehta (Tooling Workshop Owner)

Posted: 3 weeks ago

"Excellent machinability and wear resistance. Slight variation in surface texture between batches, but nothing that affects performance. Would love to see a polished finish option in the future."


🎯 Reviews by Use Case Category

🏗️ Industrial Construction (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High strength (95% mentioned)
  • Structural reliability (92% mentioned)
  • RoHS compliance (80% mentioned)

⚙️ Engineering & Mold Steel Projects (29 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Machinability (88% mentioned)
  • Ductility and crack resistance (90% mentioned)
  • Custom processing options (85% mentioned)

🏭 Manufacturing & Heavy-Duty Use (22 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Forged durability (100% mentioned)
  • Precision tolerance (91% mentioned)
  • Full customization capability (87% mentioned)

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