AISI 4140 Round Bar exporter in Turkey
AISI 4140 Round Bar exporter in Turkey plays a crucial role in supplying high-quality alloy steel products to various industrial sectors worldwide. Known for its excellent strength, toughness, and wear resistance, AISI 4140 is a chromium-molybdenum steel grade commonly used in manufacturing components that demand superior mechanical properties. Turkish exporters ensure that these round bars meet international standards, making them reliable choices for engineering applications.
The round bars are typically available in a range of diameters and lengths, catering to diverse manufacturing needs. With precise chemical composition and controlled heat treatment processes, these bars offer enhanced hardenability and fatigue resistance. The material's versatility allows it to be machined, forged, and welded with ease, making it suitable for critical parts such as shafts, gears, bolts, and automotive components.
Industries such as oil and gas, automotive, heavy machinery, and construction heavily rely on these alloy steel bars for their structural integrity and durability. The superior tensile strength and impact resistance of AISI 4140 round bars make them ideal for high-stress environments. Exporters in Turkey focus on maintaining stringent quality control protocols, ensuring the steel bars comply with ASTM, DIN, and other relevant international standards.
Turkey’s strategic geographic location and well-established logistics infrastructure facilitate efficient global distribution. Exporters are equipped to handle bulk orders and provide tailored packaging solutions to protect the material during transit. This commitment to export readiness ensures timely delivery and cost-effective supply chain management for international industrial buyers.
For procurement specialists seeking robust alloy steel solutions, partnering with a reputable supplier from Turkey guarantees access to premium AISI 4140 round bars. These products support demanding applications by combining durability with versatility, backed by the expertise of experienced manufacturers and exporters focused on meeting global market requirements.
Our Approvals | Third Party Inspection
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why AISI 4140 Round Bar exporter in Turkey 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 AISI 4140 Round Bar exporter in Turkey
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4140 Round Bar exporter in Turkey
- 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 AISI 4140 Round Bar exporter in Turkey
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 AISI 4140 Round Bar exporter in Turkey
| 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 AISI 4140 Round Bar
- ✔ High tensile strength and toughness
- ✔ Excellent wear resistance
- ✔ Versatile for various applications including automotive and construction
- ✔ Easily machinable and weldable
- ✔ Heat treatable for enhanced performance
- ✔ Complies with international standards and specifications
Technical Overview of AISI 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| AISI 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.15% Mo | Used in manufacturing high-stress parts like gears, crankshafts, and axles | ASTM A29, ASTM A322, SAE J403 |
| AISI 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.15% Mo | Commonly used in the oil and gas industry for drilling components | API 5CT, API 6A |
| AISI 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.15% Mo | Suitable for automotive and aerospace applications requiring high tensile strength | AMS 6345, AMS 6346 |
Specifications Table
| Material | AISI 4140 |
|---|---|
| Grades | 4140, 4142 |
| Standard | ASTM A29, ASTM A322 |
| Size Range | 10 mm to 300 mm diameter |
| Length | Up to 6000 mm |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| AISI 4140 Round Bar | C: 0.38-0.43%, Si: 0.15-0.40%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Used in the manufacturing of gears, shafts, and other critical components requiring high strength and toughness. |
| AISI 4140 HT Round Bar | C: 0.38-0.43%, Si: 0.15-0.40%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Suitable for applications needing improved hardness and wear resistance, such as tool and die manufacturing. |
| AISI 4140 QT Round Bar | C: 0.38-0.43%, Si: 0.15-0.40%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Ideal for heavy-duty applications like military vehicles, oil and gas drilling equipment, and heavy machinery. |
| AISI 4140 Pre-Hard Round Bar | C: 0.38-0.43%, Si: 0.15-0.40%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Commonly used in production of parts that require machining and a specific hardness level. |
| AISI 4140 Low-Alloy Round Bar | C: 0.38-0.43%, Si: 0.15-0.40%, Mn: 0.75-1.00%, Cr: 0.80-1.10%, Mo: 0.15-0.25% | Utilized in applications that require high fatigue strength and impact resistance. |
Available Sizes of AISI 4140 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 20 | 25 |
| 30 | 35 |
| 40 | 45 |
| 50 | 55 |
| 60 | 65 |
| 70 | 75 |
| 80 | 90 |
| 100 | 110 |
| 120 | 130 |
| 140 | 150 |
Chemical Properties of AISI 4140
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Phosphorus (P) | Max 0.04 |
| Sulfur (S) | Max 0.04 |
| Iron (Fe) | Balance |
Mechanical Properties of AISI 4140
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 655 - 850 |
| Yield Strength (MPa) | 415 - 620 |
| Elongation (%) | 20 - 25 |
| Hardness (Brinell) | 207 - 250 |
| Impact Toughness (J) | 35 - 50 |
AISI 4140 Round Bar – Physical & Thermal Properties
Density of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
Melting Point of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1420 - 1540 °C | 2600 - 2800 °F |
Specific Heat of AISI 4140 Round Bar
| Specific Heat of AISI 4140 Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 460 | 20 - 100 | Room Temperature |
| 500 | 100 - 300 | Heating |
| 540 | 300 - 600 | High Temperature |
Electrical Resistivity of AISI 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | Quenched and Tempered |
| 78 | 100 | |
| 80 | 200 | |
| 82 | 300 | |
| 85 | 400 | |
Equivalent of AISI 4140
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 1.7225 | G41400 |
| EN 10083-3 | 42CrMo4 | 1.7225 |
Manufacturing Process & Heat Treatment of AISI 4140 Round Bar
Annealing
The annealing process for AISI 4140 round bars involves heating the material to a temperature of approximately 850-900°C, followed by a controlled cooling process. This treatment helps to relieve internal stresses, improve machinability, and refine the grain structure, resulting in enhanced ductility and toughness.
Forging
Forging of AISI 4140 round bars is typically performed at temperatures ranging from 1100 to 1250°C. This process enhances the mechanical properties by refining the grain structure and improving the strength of the material through deformation. The bars are shaped into desired dimensions while maintaining uniformity and reducing porosity.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 830-860 | Oil | To increase hardness and strength through martensitic transformation. |
| Tempering | 400-700 | Air | To reduce brittleness and improve toughness after hardening. |
| Stress Relieving | 550-650 | Air | To relieve residual stresses from machining and hardening processes. |
The manufacturing and heat treatment processes for AISI 4140 round bars are critical in ensuring the material meets the stringent requirements for various industrial applications. Proper execution of these processes results in high-quality products suitable for demanding environments.
Various Types
AISI 4140 Round Bar - Annealed
- Diameter: 20mm to 300mm
- Condition: Annealed
- Applications: Machinery components, automotive parts, and structural applications
AISI 4140 Round Bar - Quenched and Tempered
- Diameter: 25mm to 150mm
- Condition: Quenched and Tempered
- Applications: High strength applications, heavy-duty machinery, and tool manufacturing
AISI 4140 Round Bar - Cold Drawn
- Diameter: 10mm to 50mm
- Condition: Cold Drawn
- Applications: Precision components, hydraulic systems, and automotive applications
AISI 4140 Round Bar - Hot Rolled
- Diameter: 40mm to 200mm
- Condition: Hot Rolled
- Applications: General machining, fabrication, and construction
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 AISI 4140 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| AISI 4140 | 3 mm | $2.50 – $2.80 | ₹207 – ₹232 |
| AISI 4140 | 6 mm | $2.40 – $2.70 | ₹199 – ₹224 |
| AISI 4140 | 10 mm | $2.30 – $2.60 | ₹192 – ₹216 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for AISI 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
- AISI 4140 Steel Properties
- AISI 4140 Round Bar Suppliers in Turkey
- AISI 4140 Round Bar Price in Turkey
- AISI 4140 Round Bar Manufacturers
- AISI 4140 Round Bar Applications
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.