4140 Round Bar exporter in Italy
4140 Round Bar exporter in Italy specializes in supplying high-grade alloy steel bars known for their excellent strength, toughness, and wear resistance. These bars are manufactured from chromium-molybdenum steel, offering superior mechanical properties that make them ideal for demanding industrial applications. The round bars are precision-rolled and heat-treated to ensure uniformity and durability, meeting stringent international standards.
The product features a balanced chemical composition that includes chromium, molybdenum, and manganese, enhancing hardenability and fatigue resistance. Available in various diameters and lengths, these alloy steel bars provide versatility for machining and fabrication processes. Their dimensional accuracy and surface finish are maintained through advanced manufacturing techniques, making them suitable for critical engineering components.
Commonly utilized in sectors such as automotive, aerospace, and heavy machinery, these bars serve as raw material for shafts, gears, bolts, and other structural parts requiring high tensile strength and impact resistance. Their excellent toughness and resistance to wear ensure extended service life, even under high stress and fluctuating loads.
Italian exporters maintain rigorous quality control and comply with international export regulations, ensuring timely delivery and reliable logistics support. The readiness for global shipping includes appropriate certifications and documentation, facilitating smooth customs clearance and adherence to client specifications. This makes them a trusted source for industrial buyers seeking dependable alloy steel round bars for their manufacturing needs.
Our Approvals | Third Party Inspection
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why 4140 Round Bar exporter in Italy Are Preferred by Global Buyers
- ✔ Factory Pricing: Direct manufacturer rates with bulk stock
- ✔ Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- ✔ Export-Ready: Sea-worthy packaging for on-time delivery
- ✔ Fast RFQs: Quick quotes for custom sizes & quantities
- ✔ Traceability: 100% heat number tracking from raw material to finished product
Trusted by industries like oil & gas, petrochemicals, power, marine, and heavy engineering.
- Manufacturing Capacity: 500 MT / Month
- Export Experience: 50+ Years
- Countries Served: 50+
- Annual Export Volume: 5,500 MT
Table of Contents
- 1. What is 4140 Round Bar exporter in Italy
- 2. How to Choose the Right Manufacturer
- 3.Comparison of 4140 Round Bar exporter in Italy
- 4. Why Global Buyers Source from Super Metal Manufacturing Co.
- 5. Features
- 6. Technical Overview
- 7. Specifications
- 8. Available Grades
- 9. Available Sizes
- 10. Chemical Properties
- 11. Mechanical Properties
- 12. Physical & Thermal Properties
- 13. Electrical Resistivity
- 14. Equivalent Grades
- 15. Manufacturing Process & Heat Treatment
- 16. Various Types
- 17. Applications & Uses
- 18. Industries We Serve
- 19. Latest Price List
- 20. MOQ & Payment Terms
- 21.Export Packaging & Shipping
- 22. Cities We Supply in India
- 23. Countries We Export Worldwide
- 24. Our Certifications
- 25. Quality Inspection & Testing
- 26. Our Other Product Types
- 27. People Also Search For
- 28. Frequently Asked Questions
- 29. About Super Metal Manufacturing Co.
How to Choose the Right 4140 Round Bar exporter in Italy
India is home to hundreds of manufacturers ranging from small job shops to large ISO-certified exporters. International and domestic buyers typically evaluate manufacturers based on quality compliance, production capacity, export experience, and pricing transparency.
- Certification & international standards (ASME, ASTM, EN)
- Manufacturing capability vs trading activity
- Export documentation & inspection support
- Stock availability & lead time reliability
- Past supply experience in oil & gas, EPC & heavy industries
Comparison Factors Among 4140 Round Bar exporter in Italy
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| International Standards | Basic | Depends on source | ASME / ASTM / EN |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Export Experience | Low | Medium | 50+ countries |
| Risk for EPC Projects | High | Medium | Low |
International buyers typically prefer ISO-certified manufacturers for large-scale or critical applications due to better quality control, documentation, and lower project risk.
Why Global Buyers Choose Super Metal Manufacturing Co.
Super Metal Manufacturing Co. is a trusted ISO 9001:2015 certified manufacturer and global exporter of ferro alloys and metal products, supplying consistent, high-quality materials to customers across USA, UK, Europe, Middle East, Africa, and Asia-Pacific. Our focus on quality assurance, cost efficiency, and on-time delivery makes us a preferred sourcing partner for international buyers.
| Key Advantage | Buyer Benefit |
|---|---|
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Lower Manufacturing & Sourcing Costs | Save up to 15–20% compared to European suppliers |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Export-Grade Packaging & Global Logistics | Sea-worthy packing, palletization & worldwide shipping support |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
Features of 4140 Round Bar
- ✔ High tensile strength for demanding applications
- ✔ Excellent hardenability for improved wear resistance
- ✔ Good machinability for enhanced fabrication processes
- ✔ Versatile alloy suitable for various industries
- ✔ Superior fatigue resistance for extended service life
- ✔ Availability in various diameters for different needs
Technical Overview of 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| 4140 Round Bar | Carbon 0.38-0.43%, Chromium 0.8-1.1%, Molybdenum 0.15-0.25% | Used in structural applications, automotive components, and machinery | ASTM A829, ASTM AISI 4140 |
| 4140 Round Bar | Carbon 0.38-0.43%, Chromium 0.8-1.1%, Molybdenum 0.15-0.25% | Used in gears, shafts, and heavy-duty components | SAE J403, ASME SA-829 |
| 4140 Round Bar | Carbon 0.38-0.43%, Chromium 0.8-1.1%, Molybdenum 0.15-0.25% | Suitable for heat treatment to enhance hardness and strength | ISO 683-1, ASTM A36 |
Specifications Table
| Material | 4140 Steel |
|---|---|
| Grades | AISI 4140 |
| Standard | ASTM A829, ASTM AISI |
| Size Range | 10 mm to 300 mm diameter |
| Length | Up to 6000 mm |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| 4140 Round Bar | C: 0.38-0.43%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Used in the manufacture of gears, axles, shafts, and heavy machinery components. |
| 4140 HT Round Bar | C: 0.38-0.43%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Ideal for applications requiring high tensile strength and toughness. |
| 4140 QT Round Bar | C: 0.38-0.43%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Commonly used in oil and gas industry for drill bits and downhole tools. |
| 4140 Prehardened Round Bar | C: 0.38-0.43%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Used in machining operations where stress relief and dimensional stability are important. |
| 4140 Alloy Steel Round Bar | C: 0.38-0.43%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Suitable for high-stress applications including automotive and aerospace components. |
Available Sizes of 4140 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 20 |
| 25 | 30 |
| 35 | 40 |
| 45 | 50 |
| 55 | 60 |
| 65 | 70 |
| 75 | 80 |
| 90 | 100 |
| 110 | 120 |
| 150 | 200 |
Chemical Properties of 4140 Round Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.90 - 1.20 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
| Iron (Fe) | Balance |
Mechanical Properties of 4140 Round Bar
| Property | Value |
|---|---|
| Tensile Strength | 655 MPa (95 ksi) |
| Yield Strength | 415 MPa (60 ksi) |
| Elongation | 20% |
| Reduction of Area | 50% |
| Hardness (Rockwell C) | 28-32 HRC |
4140 Round Bar – Physical & Thermal Properties
Density of 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
Melting Point of 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1420 - 1540 °C | 2600 - 2800 °F |
Specific Heat of 4140 Round Bar
| Specific Heat of 4140 Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 460 | 100 - 300 | Moderate Heating |
| 420 | 300 - 600 | High Temperature |
Electrical Resistivity of 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.00045 | 20 | Quenched and Tempered |
| 0.00047 | 100 | |
| 0.00050 | 200 | |
| 0.00053 | 300 | |
| 0.00056 | 400 | |
Equivalent of 4140 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A829 | 1.7225 | G41400 |
| SAE J403 | 4140 | G41400 |
Manufacturing Process & Heat Treatment of 4140 Round Bar
Annealing
Annealing of 4140 round bars involves heating the material to a temperature range of 850-900°C followed by slow cooling. This process reduces hardness and improves ductility, making the steel easier to machine and shape.
Forging
The forging of 4140 round bars is performed at temperatures between 1100-1250°C. This process enhances the mechanical properties of the steel by refining the grain structure and improving strength and toughness.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 800-850 | Oil | To increase hardness and strength by transforming the microstructure. |
| Tempering | 400-600 | Air | To reduce brittleness and relieve internal stresses after hardening. |
| Stress Relieving | 600-650 | Air | To reduce residual stresses from machining and forging. |
The combination of these processes ensures that 4140 round bars meet the high standards required for various industrial applications, providing optimal performance in demanding environments.
Various Types
4140 Alloy Steel Round Bar
- Diameter: 20mm - 300mm
- Condition: Forged, Annealed, Normalized
- Applications: Automotive, Aerospace, General Engineering
4140 Heat Treated Round Bar
- Diameter: 25mm - 200mm
- Condition: Heat Treated
- Applications: Machinery Components, Structural Parts
4140 Cold Drawn Round Bar
- Diameter: 15mm - 100mm
- Condition: Cold Drawn
- Applications: Precision Machining, Tooling
4140 Stress Relieved Round Bar
- Diameter: 30mm - 150mm
- Condition: Stress Relieved
- Applications: Heavy Machinery, Oil & Gas Industry
Applications & Uses
- Oil & Gas Industry
- Petrochemical Plants
- Water Treatment Plants
- Pharmaceutical Industry
- Food & Beverage Industry
- Automobile Industry
Industries We Serve
Our alloys are widely used across:
- Steel Plants
- Foundries & Casting Units
- Automobile Industry
- Shipbuilding & Marine
- Oil & Gas
- Engineering Components
- Heavy Industrial Machinery
latest Price List of 4140 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| 4140 Round Bar | 3 mm | $2.50 – $3.00 | ₹207 – ₹248 |
| 4140 Round Bar | 6 mm | $2.40 – $2.90 | ₹199 – ₹241 |
| 4140 Round Bar | 10 mm | $2.30 – $2.80 | ₹192 – ₹233 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for 4140 Round Bar.
MOQ & Payment Terms
Minimum Order Quantity: 25–100 Kg depending on part size and grade.
Payment Terms: Depending On Grade and Quantity Size
Export Packaging & Shipping
- Seaworthy, fumigated wooden crates with waterproof inner lining
- Palletised packing with clear shipping marks and heat number identification
- Container stuffing supervision with loading photographs available on request
Cities We Suppllied In India
| Supply Cities | |||||
|---|---|---|---|---|---|
| Mumbai | Delhi | Pune | Chennai | Hyderabad | Bengaluru |
| Ahmedabad | Rajkot | Coimbatore | Kolkata | Bhopal | Surat |
We exported to 50+ countries worldwide.
| Exported Countries | |||||
|---|---|---|---|---|---|
| USA | UK | UAE | Germany | South Africa | Australia |
| Italy | Canada | Netherlands | Qatar | Saudi Arabia | Malaysia |
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards.
Quality Inspection & Testing
At Super Metal Manufacturing Co., all products are checked through strict quality inspection and testing to meet international standards such as ASTM, ASME, EN, and DIN. This ensures consistent quality, accurate dimensions, and full material traceability.
- ✔ Chemical composition testing
- ✔ Mechanical tests such as tensile and hardness
- ✔ Dimensional inspection as per standard tolerances
- ✔ PMI, ultrasonic, and visual inspection (if required)
- ✔ EN 10204 3.1 / 3.2 test certificates
- ✔ Third-party inspection by SGS, TUV, BV, or Lloyd’s
Our quality systems support reliable supply for oil & gas, petrochemical, power, marine, and heavy engineering projects.
People Also Search For
- 4140 Steel Round Bar suppliers in Italy
- 4140 Alloy Steel Round Bar manufacturers
- 4140 Round Bar price in Italy
- 4140 Steel Round Bar specifications
- 4140 Round Bar distributors in Europe
Frequently Asked Questions
About Super Metal Manufacturing Co.
Super Metal Manufacturing Co. is a trusted name in the metal industry since 1965, specializing in the manufacturing and export of high-quality 4140, EN19, and 42CrMo4 round bars. With decades of experience, we have built a strong reputation for delivering precision-engineered, durable, and high-performance steel products to industries worldwide.
Our company is committed to excellence through a robust quality management system and strict quality control at every stage of production. From sourcing premium raw materials from reputed suppliers like SAIL and JSW to final delivery, every product undergoes rigorous testing including tensile testing, bend and rebend tests, chemical analysis, and ultrasonic testing to ensure superior performance and reliability.
We are accredited with ISO 9001 certification and are TUV certified, reflecting our commitment to international quality standards. Our state-of-the-art manufacturing facilities, advanced machinery, and skilled workforce enable us to deliver customized solutions tailored to client requirements.
- ✔ 50+ years of industry experience in alloy steel and round bar manufacturing
- ✔ Specialized in 4140, EN19, and 42CrMo4 high-performance round bars
- ✔ ISO certified and TUV approved quality standards
- ✔ Strict quality testing including ultrasonic and chemical analysis
- ✔ Premium raw material sourcing from SAIL and JSW
- ✔ Advanced manufacturing infrastructure with modern machinery
- ✔ Custom-engineered solutions as per drawings and specifications
- ✔ Global export capability with reliable delivery
- ✔ Trusted by industries for critical and high-performance applications
Our Mission
Our mission is to deliver the highest-quality alloy steel round bars while maintaining excellence in precision, innovation, and customer satisfaction. We aim to empower industries worldwide by providing reliable and durable products that meet evolving manufacturing needs.
Our Vision
Our vision is to become a global leader in the manufacturing and export of premium-quality round bars, recognized for our product excellence, innovation, and commitment to exceeding customer expectations.