AISI 4140 Round Bar exporter in Bahrain
AISI 4140 Round Bar exporter in Bahrain offers high-quality alloy steel bars known for their excellent strength, toughness, and wear resistance. These round bars are manufactured using the AISI 4140 grade, a chromium-molybdenum steel renowned for its versatile mechanical properties and high hardenability. Ideal for demanding industrial applications, these bars undergo stringent quality control to meet international standards, ensuring consistent performance and durability.
The 4140 alloy steel round bars are typically supplied in various diameters and lengths, catering to diverse engineering requirements. Their chemical composition includes chromium, molybdenum, and manganese, which contribute to enhanced tensile strength and fatigue resistance. Heat treatment options such as annealing, quenching, and tempering further optimize the bars for specific mechanical properties, making them suitable for machining, forging, and fabrication processes.
Widely used across industries like automotive, aerospace, oil and gas, and heavy machinery manufacturing, these round bars serve as critical components in shafts, gears, bolts, and structural parts. Their ability to withstand high stress and resist deformation under load makes them indispensable in applications requiring reliability and long service life. Additionally, the barsβ machinability allows for precise component manufacturing, accommodating the customization needs of industrial buyers.
Export readiness is a key focus for suppliers in Bahrain, ensuring that the AISI 4140 round bars are packaged and shipped in compliance with global logistics and quality assurance protocols. This includes proper certification, traceability, and timely delivery to international markets. Buyers can expect comprehensive support, including technical documentation and after-sales service, facilitating smooth procurement and integration into their supply chains.
Our Approvals | Third Party Inspection
Lead Time
2β7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why AISI 4140 Round Bar exporter in Bahrain Are Preferred by Global Buyers
- β Factory Pricing: Direct manufacturer rates with bulk stock
- β Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- β Export-Ready: Sea-worthy packaging for on-time delivery
- β Fast RFQs: Quick quotes for custom sizes & quantities
- β 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 Bahrain
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4140 Round Bar exporter in Bahrain
- 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 Bahrain
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 Bahrain
| 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 15β20% 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
- β High tensile strength for demanding applications
- β Excellent toughness and ductility
- β Good wear resistance, ideal for heavy machinery
- β Versatile for various heat treatment processes
- β Suitable for cold working and machining
- β Available in various diameters and lengths for customization
Technical Overview of AISI 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| AISI 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Used in manufacturing high-strength steel components, shafts, gears, and axles. | AISI, ASTM, SAE |
| AISI 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Ideal for applications requiring high fatigue strength and impact resistance. | AISI, ASTM, SAE |
| AISI 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Commonly used in the automotive and aerospace industries. | AISI, ASTM, SAE |
Specifications Table
| Material | AISI 4140 |
|---|---|
| Grades | 4140 |
| Standard | ASTM A829 |
| Size Range | 10 mm to 300 mm diameter |
| Length | 3 meters to 6 meters |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| AISI 4140 Round Bar | Carbon: 0.38-0.43%, Manganese: 0.75-1.00%, Chromium: 0.80-1.10%, Molybdenum: 0.15-0.25% | Used in the manufacture of gears, crankshafts, and other high-stress applications. |
| AISI 4140 QT Round Bar | Carbon: 0.38-0.43%, Manganese: 0.75-1.00%, Chromium: 0.80-1.10%, Molybdenum: 0.15-0.25% | Ideal for high-strength applications requiring quench and temper treatment. |
| AISI 4140 Annealed Round Bar | Carbon: 0.38-0.43%, Manganese: 0.75-1.00%, Chromium: 0.80-1.10%, Molybdenum: 0.15-0.25% | Suitable for machining and fabrication of parts that will be heat treated later. |
| AISI 4140 Prehard Round Bar | Carbon: 0.38-0.43%, Manganese: 0.75-1.00%, Chromium: 0.80-1.10%, Molybdenum: 0.15-0.25% | Used in applications where high strength and toughness are required without further heat treatment. |
| AISI 4140 Hot Rolled Round Bar | Carbon: 0.38-0.43%, Manganese: 0.75-1.00%, Chromium: 0.80-1.10%, Molybdenum: 0.15-0.25% | Commonly used in structural applications and for producing forged components. |
Available Sizes of AISI 4140 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 20 | 30 |
| 25 | 35 |
| 28 | 40 |
| 32 | 45 |
| 38 | 50 |
| 42 | 55 |
| 48 | 60 |
| 56 | 70 |
| 63 | 80 |
| 75 | 90 |
Chemical Properties of AISI 4140
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Phosphorus (P) | β€ 0.035 |
| Sulfur (S) | β€ 0.040 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.90 - 1.20 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Iron (Fe) | Balance |
Mechanical Properties of AISI 4140
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 655 - 850 |
| Yield Strength (MPa) | 415 - 620 |
| Elongation (%) | 18 - 22 |
| Hardness (HB) | 207 - 285 |
| Impact Toughness (J) | 34 - 45 |
AISI 4140 Round Bar β Physical & Thermal Properties
Density of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cmΒ³ | 0.284 lb/inΒ³ |
Melting Point of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1420 - 1540 Β°C | 2600 - 2800 Β°F |
Specific Heat of AISI 4140 Round Bar
| Specific Heat of AISI 4140 Round Bar | ||
|---|---|---|
| Specific Heat (J/kgΒ·K) | Temperature Range (Β°C) | Condition |
| 480 | 20 - 200 | Annealed |
| 460 | 200 - 400 | Tempered |
| 500 | 400 - 600 | Quenched |
Electrical Resistivity of AISI 4140
| Electrical Resistivity | ||
|---|---|---|
| Value (¡Ω·m) | Temperature (°C) | Treatment or Condition |
| 74 | 20 | Annealed |
| 77 | 100 | |
| 80 | 200 | |
| 83 | 300 | |
| 86 | 400 | |
Equivalent of AISI 4140
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A829 | 42CrMo4 | G41400 |
| EN 10083-3 | 42CrMo4 | 1.7225 |
Manufacturing Process & Heat Treatment of AISI 4140 Round Bar
Annealing
The annealing process for AISI 4140 round bar involves heating the material to a temperature range of 850-900Β°C, followed by slow cooling. This process relieves internal stresses and improves ductility, making the steel easier to machine and shape in subsequent operations.
Forging
Forging of AISI 4140 round bars is typically performed at temperatures between 1100-1200Β°C. This hot working process enhances the mechanical properties of the steel by refining the grain structure and ensuring uniformity throughout the material. The forged bars are then allowed to cool at room temperature.
Hardening & Tempering
| Process | Temperature Range (Β°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 850-900 | Oil or Water | To increase hardness and strength |
| Tempering | 400-600 | Air | To reduce brittleness and relieve stresses |
| Stress Relieving | 600-650 | Air | To further reduce internal stresses |
The manufacturing and heat treatment processes for AISI 4140 round bars are critical in achieving the desired mechanical properties and performance characteristics. Proper execution of these processes ensures the quality and reliability of the final product for various industrial applications.
Various Types
AISI 4140 Round Bar - Hot Rolled
- Diameter: 20mm to 300mm
- Condition: Hot Rolled
- Applications: Automotive components, machinery parts
AISI 4140 Round Bar - Cold Drawn
- Diameter: 12mm to 200mm
- Condition: Cold Drawn
- Applications: High-strength applications, precision machining
AISI 4140 Round Bar - Annealed
- Diameter: 25mm to 150mm
- Condition: Annealed
- Applications: Welding, forming, machining
AISI 4140 Round Bar - Quenched and Tempered
- Diameter: 30mm to 250mm
- Condition: Quenched and Tempered
- Applications: Structural components, high-load applications
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 | $3.00 β $3.50 | βΉ250 β βΉ290 |
| AISI 4140 | 6 mm | $2.80 β $3.20 | βΉ230 β βΉ270 |
| AISI 4140 | 10 mm | $2.50 β $3.00 | βΉ210 β βΉ250 |
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: 25β100 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.
- β Chemical composition testing
- β Mechanical tests such as tensile and hardness
- β Dimensional inspection as per standard tolerances
- β PMI, ultrasonic, and visual inspection (if required)
- β EN 10204 3.1 / 3.2 test certificates
- β Third-party inspection by SGS, TUV, BV, or Lloydβs
Our quality systems support reliable supply for oil & gas, petrochemical, power, marine, and heavy engineering projects.
People Also Search For
- AISI 4140 Steel Suppliers in Bahrain
- 4140 Round Bar Price in Bahrain
- Alloy Steel Exporters in Bahrain
- 4140 Steel Round Bar Specifications
- Metallurgical Services in Bahrain
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.
- β 50+ years of industry experience in alloy steel and round bar manufacturing
- β Specialized in 4140, EN19, and 42CrMo4 high-performance round bars
- β ISO certified and TUV approved quality standards
- β Strict quality testing including ultrasonic and chemical analysis
- β Premium raw material sourcing from SAIL and JSW
- β Advanced manufacturing infrastructure with modern machinery
- β Custom-engineered solutions as per drawings and specifications
- β Global export capability with reliable delivery
- β 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.