AISI 4140 Round Bar exporter in Oman
AISI 4140 Round Bar exporter in Oman plays a crucial role in supplying high-strength alloy steel bars known for their excellent mechanical properties and versatility. These bars are manufactured from chromium-molybdenum steel, offering superior toughness, wear resistance, and fatigue strength. Ideal for industrial applications requiring durability and precision, this product is widely sought after in sectors such as oil and gas, automotive, and heavy machinery.
The round bars typically conform to international standards such as ASTM A29/A29M, ensuring consistent chemical composition and mechanical performance. With a tensile strength ranging from 95,000 to 105,000 psi and a yield strength of approximately 60,000 psi, the material is suitable for components that endure high stress and impact. Heat treatment processes like quenching and tempering further enhance the hardness and resilience of these alloy steel bars, making them reliable for demanding engineering tasks.
Manufactured with precise dimensional tolerances and smooth surface finishes, these alloy steel rods are available in various diameters and lengths to meet specific project requirements. Their machinability and weldability allow for customization and integration into complex assemblies. The combination of strength and versatility makes them ideal for manufacturing gears, shafts, bolts, and other critical parts in mechanical systems.
Export readiness is a key aspect of suppliers in Oman, ensuring that all AISI 4140 round bars are packaged and shipped according to international export regulations. This includes proper documentation, quality certifications, and compliance with shipping standards to guarantee safe and timely delivery to global industrial buyers. The strategic location of Oman facilitates efficient logistics and access to key markets in the Middle East, Asia, and beyond.
Industrial buyers looking for reliable alloy steel solutions can benefit from the expertise of local exporters who provide tailored support, technical guidance, and competitive pricing. By sourcing from a trusted supplier in Oman, companies can secure high-quality AISI 4140 round bars that meet stringent engineering specifications and contribute to the longevity and performance of their products.
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 Oman 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 Oman
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4140 Round Bar exporter in Oman
- 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 Oman
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 Oman
| 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
- ✔ Good machinability and weldability
- ✔ Versatile applications in various industries
- ✔ Enhanced hardenability for improved performance
- ✔ Available in various sizes and finishes
Technical Overview of AISI 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| AISI 4140 Round Bar | Carbon: 0.38-0.43%, Chromium: 0.90-1.20%, Molybdenum: 0.15-0.25% | Used in manufacturing gears, shafts, and other high-strength components | AISI, ASTM, SAE |
| AISI 4140 Round Bar | Carbon: 0.38-0.43%, Chromium: 0.90-1.20%, 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%, Chromium: 0.90-1.20%, Molybdenum: 0.15-0.25% | Commonly used in the oil and gas industry for drilling equipment | AISI, ASTM, SAE |
Specifications Table
| Material | AISI 4140 |
|---|---|
| Grades | 4140, 4142, 4145 |
| Standard | AISI, ASTM, SAE |
| Size Range | 16 mm to 300 mm diameter |
| Length | 3 m to 6 m |
| 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 automotive components, gears, and crankshafts. |
| 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 | Ideal for high-stress applications and heavy-duty parts. |
| 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 | Recommended for components requiring high strength and toughness. |
| AISI 4140 Prehard 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 where additional machining is required after heat treatment. |
| AISI 4140 Alloy Steel 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 manufacturing of oil and gas drilling equipment. |
Available Sizes of AISI 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 AISI 4140
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.04 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Iron (Fe) | Balance |
Mechanical Properties of AISI 4140
| Property | Value |
|---|---|
| Tensile Strength | 655 MPa (95 ksi) |
| Yield Strength | 415 MPa (60 ksi) |
| Elongation | 20% |
| Hardness | 28-32 HRC |
| Modulus of Elasticity | 210 GPa (30,000 ksi) |
AISI 4140 Round Bar – Physical & Thermal Properties
Density of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7850 kg/m³ | 490 lb/ft³ |
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 |
| 500 | 20 - 100 | Room Temperature |
| 460 | 100 - 400 | Heat Treated |
| 420 | 400 - 800 | High Temperature |
Electrical Resistivity of AISI 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.00070 | 20 | As-rolled |
| 0.00075 | 100 | |
| 0.00080 | 200 | |
| 0.00085 | 300 | |
| 0.00090 | 400 | |
Equivalent of AISI 4140 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 1.7225 | G41400 |
| DIN 42CrMo4 | 1.7225 | G41400 |
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 range of 850°C to 900°C and holding it at that temperature for a specific period. This process is followed by slow cooling in a furnace or air cooling, which helps to relieve internal stresses, improve ductility, and refine the microstructure of the steel.
Forging
Forging of AISI 4140 round bars is typically performed at elevated temperatures ranging from 1100°C to 1250°C. During this process, the steel is shaped using mechanical or hydraulic presses, which enhances its mechanical properties through grain refinement and alignment of the microstructure, making it stronger and more durable.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 850 - 900 | Oil | Increase hardness and strength |
| Tempering | 400 - 700 | Air | Reduce brittleness and improve toughness |
| Stress Relieving | 600 - 650 | Air | Eliminate residual stresses |
The combination of these manufacturing processes and heat treatments ensures that AISI 4140 round bars meet the stringent requirements for various industrial applications, providing excellent mechanical properties and performance.
Various Types
AISI 4140 Round Bar - Heat Treated
- Diameter: 20mm to 300mm
- Condition: Heat Treated to HRC 28-32
- Applications: Gears, Crankshafts, and Forgings
AISI 4140 Round Bar - Cold Drawn
- Diameter: 10mm to 100mm
- Condition: Cold Drawn, Surface Finish
- Applications: Hydraulic Cylinders and Machine Components
AISI 4140 Round Bar - Annealed
- Diameter: 25mm to 150mm
- Condition: Annealed for Enhanced Machinability
- Applications: Tooling and Structural Parts
AISI 4140 Round Bar - Quenched and Tempered
- Diameter: 15mm to 250mm
- Condition: Quenched and Tempered for High Strength
- Applications: Heavy Machinery and Aerospace Components
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 – $3.00 | ₹205 – ₹246 |
| AISI 4140 | 6 mm | $2.40 – $2.90 | ₹198 – ₹239 |
| AISI 4140 | 10 mm | $2.30 – $2.80 | ₹192 – ₹234 |
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 Suppliers in Oman
- 4140 Round Bar Price in Oman
- AISI 4140 Round Bar Manufacturers
- 4140 Alloy Steel Round Bar Exporters
- Heat Treatment of AISI 4140 Steel
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.