4140 Round Bar exporter in France
4140 Round Bar exporter in France plays a crucial role in supplying high-quality alloy steel bars tailored for demanding industrial applications. Known for its excellent strength, toughness, and wear resistance, this grade is widely used across various manufacturing sectors. The round bar form offers versatility in machining and fabrication, making it a preferred choice for components requiring precision and durability.
Manufactured from chromium-molybdenum alloy steel, these bars typically conform to international standards such as ASTM A29/A29M. Their chemical composition ensures superior hardenability and fatigue resistance, essential for parts subjected to heavy loads and stress. Dimensional accuracy and consistent surface finish are maintained to meet stringent quality requirements, facilitating seamless integration into production lines.
Industries such as automotive, aerospace, oil and gas, and heavy machinery extensively utilize these alloy steel bars for shafts, gears, bolts, and other critical components. The material's ability to withstand high torque and impact makes it ideal for manufacturing parts exposed to harsh operating environments. Additionally, the bars are readily machinable and respond well to heat treatment processes, enhancing their mechanical properties further.
Exporters based in France ensure that their shipments comply with international trade regulations and packaging standards, guaranteeing safe and timely delivery worldwide. With robust logistics networks and quality certifications, these suppliers cater to global industrial buyers seeking reliable and consistent supply. Custom lengths, diameters, and surface treatments can be arranged to suit specific project needs, underscoring their export readiness.
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 France 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 France
- 2. How to Choose the Right Manufacturer
- 3.Comparison of 4140 Round Bar exporter in France
- 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 France
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 France
| 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 toughness and fatigue resistance
- ✔ Good machinability, making it easy to work with
- ✔ Suitable for heat treatment to enhance performance
- ✔ Wide range of applications, including automotive and aerospace
- ✔ Available in various sizes and custom lengths
Technical Overview of 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.10% Mo | Used in high-stress applications such as gears, shafts, and axles. | ASTM A829, ASTM A36 |
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.10% Mo | Commonly utilized in the automotive and aerospace industries. | SAE J404, SAE J403 |
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.10% Mo | Ideal for manufacturing tools and machinery components. | ISO 683-17, EN 10083 |
Specifications Table
| Material | 4140 Alloy Steel |
|---|---|
| Grades | AISI 4140, ASTM A829 |
| Standard | ASTM A36, ASTM A572 |
| Size Range | 20 mm to 300 mm diameter |
| Length | 3 m to 6 m |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.30% Cr, 0.85-1.10% Mo | Manufacturing of gears, axles, and shafts in the automotive and aerospace industries |
| 4140 HT Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.30% Cr, 0.85-1.10% Mo | High strength applications requiring good ductility and toughness |
| 4140 QT Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.30% Cr, 0.85-1.10% Mo | Applications demanding high hardness and wear resistance |
| 4140 Normalized Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.30% Cr, 0.85-1.10% Mo | Used in structural applications where high strength is required |
| 4140 Cold Drawn Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.30% Cr, 0.85-1.10% Mo | Precision components in various industrial applications |
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 |
| 130 | 140 |
Chemical Properties of 4140 Round Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Silicon (Si) | 0.15 - 0.40 |
| Iron (Fe) | Balance |
Mechanical Properties of 4140 Round Bar
| Property | Value |
|---|---|
| Tensile Strength | 655 MPa |
| Yield Strength | 415 MPa |
| Elongation | 21% |
| Hardness (HB) | 207 |
| Modulus of Elasticity | 210 GPa |
4140 Round Bar – Physical & Thermal Properties
Density of 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,850 kg/m³ | 490 lb/ft³ |
Melting Point of 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,540 °C | 2,800 °F |
Specific Heat of 4140 Round Bar
| Specific Heat of 4140 Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 460 | 20 to 100 | Room Temperature |
| 500 | 100 to 300 | Heating |
| 540 | 300 to 600 | High Temperature |
Electrical Resistivity of 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.00075 | 20 | Quenched and Tempered |
| 0.00080 | 100 | |
| 0.00085 | 200 | |
| 0.00090 | 300 | |
| 0.00095 | 400 | |
Equivalent of 4140 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| AISI 4140 | 1.7225 | G41400 |
| ASTM A829 | 4140 | G41400 |
Manufacturing Process & Heat Treatment of 4140 Round Bar
Annealing
The annealing process for 4140 round bars involves heating the material to a temperature range of 850°C to 900°C, followed by slow cooling in a furnace. This process relieves internal stresses, improves ductility, and refines the microstructure, making the material easier to machine and form.
Forging
Forging of 4140 round bars is typically conducted at temperatures between 1100°C and 1250°C. This hot working process enhances the mechanical properties by refining the grain structure and aligning it in the direction of the applied load, resulting in improved strength and toughness.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 830 - 860 | Oil | To increase hardness and strength by transforming austenite to martensite. |
| Tempering | 400 - 700 | Air | To reduce brittleness and relieve stresses introduced during hardening. |
| Hardening | 860 - 880 | Water | To achieve a finer microstructure and enhance toughness and fatigue resistance. |
The manufacturing and heat treatment processes of 4140 round bars are critical in achieving the desired mechanical properties for various industrial applications. Proper execution of these processes ensures high-quality products suitable for export.
Various Types
4140 Round Bar - Hot Rolled
- Diameter: 10mm to 300mm
- Condition: Hot Rolled
- Applications: Automotive, Machinery, and Structural Components
4140 Round Bar - Cold Drawn
- Diameter: 5mm to 100mm
- Condition: Cold Drawn
- Applications: Precision Parts, Tooling, and Fixtures
4140 Round Bar - Quenched and Tempered
- Diameter: 20mm to 150mm
- Condition: Quenched and Tempered
- Applications: Heavy Machinery, Oil and Gas Industry
4140 Round Bar - Annealed
- Diameter: 12mm to 200mm
- Condition: Annealed
- Applications: Forging, Machining, and Welding
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 | $3.50 – $4.00 | ₹290 – ₹340 |
| 4140 Round Bar | 6 mm | $3.20 – $3.80 | ₹260 – ₹330 |
| 4140 Round Bar | 10 mm | $3.00 – $3.50 | ₹240 – ₹290 |
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 Suppliers in France
- 4140 Round Bar Price in France
- 4140 Steel Round Bar Manufacturers
- 4140 Alloy Steel Exporters
- 4140 Steel Specifications and Standards
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.