AISI 4340 Round Bar exporter in Oman
AISI 4340 Round Bar exporter in Oman plays a crucial role in supplying high-strength alloy steel bars to various industrial sectors within the region. Known for its exceptional toughness, fatigue resistance, and ability to withstand high stress, this nickel-chromium-molybdenum alloy steel is widely sought after for critical engineering applications. The round bars are meticulously manufactured to meet stringent international standards, ensuring consistent quality and mechanical properties that cater to demanding operational environments.
The round bars typically conform to ASTM A29 and SAE 4340 specifications, offering excellent hardenability and high tensile strength. With a balanced composition of carbon, nickel, chromium, and molybdenum, these alloy steel bars provide superior performance in heat-treated condition. Their dimensional accuracy and surface finish are maintained to facilitate seamless integration into precision components such as gears, shafts, fasteners, and aircraft landing gear parts.
Industries such as aerospace, automotive, defense, and heavy machinery heavily rely on these alloy steel round bars due to their durability and resistance to wear and corrosion. The materialβs versatility allows it to be used in manufacturing critical parts that require a combination of strength, toughness, and fatigue resistance. Furthermore, the bars exhibit excellent machinability and weldability, making them ideal for custom fabrication and specialized industrial applications.
Export readiness is a key consideration for suppliers in Oman, ensuring that all shipments comply with international trade regulations and quality assurance protocols. Packaging is designed to protect the bars during transit, while certifications such as Mill Test Reports (MTR) and material traceability documents accompany each consignment. This guarantees that industrial buyers receive products that meet their technical requirements and project timelines without compromise.
By partnering with a reliable exporter in Oman, industrial buyers gain access to a steady supply of premium AISI 4340 round bars tailored to their specific needs. The combination of advanced manufacturing processes, stringent quality control, and efficient logistics support makes these alloy steel bars a dependable choice for industries aiming to enhance the performance and longevity of their critical components.
Our Approvals | Third Party Inspection
Lead Time
2β7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why AISI 4340 Round Bar exporter in Oman 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 4340 Round Bar exporter in Oman
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4340 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 4340 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 4340 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 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 4340 Round Bar
- β High tensile strength for demanding applications
- β Excellent toughness and fatigue resistance
- β Good weldability and machinability
- β Suitable for heat treatment to improve hardness
- β Corrosion-resistant properties with surface treatments
- β Widely used in automotive and aerospace industries
Technical Overview of AISI 4340 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| AISI 4340 Round Bar | Carbon 0.38-0.43%, Manganese 0.60-0.90%, Chromium 0.70-0.90%, Nickel 1.65-2.00%, Molybdenum 0.15-0.25% | Used in high-stress applications, including gears, shafts, and aircraft components | ASTM A29, ASTM A322, AMS 6349 |
| AISI 4340 Round Bar | Carbon 0.38-0.43%, Manganese 0.60-0.90%, Chromium 0.70-0.90%, Nickel 1.65-2.00%, Molybdenum 0.15-0.25% | Suitable for heat treatment to enhance mechanical properties | SAE J403, ASTM A829 |
| AISI 4340 Round Bar | Carbon 0.38-0.43%, Manganese 0.60-0.90%, Chromium 0.70-0.90%, Nickel 1.65-2.00%, Molybdenum 0.15-0.25% | Commonly used in automotive and aerospace industries | ISO 683-1, EN 10083-3 |
Specifications Table
| Material | AISI 4340 |
|---|---|
| Grades | 4340 |
| Standard | ASTM A29/A29M |
| Size Range | 10 mm to 300 mm diameter |
| Length | Up to 6000 mm |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| AISI 4340 Round Bar | C: 0.38-0.43, Mn: 0.60-0.90, Si: 0.15-0.40, Cr: 0.70-0.90, Mo: 0.15-0.25, Ni: 1.65-2.00 | Used in aerospace, automotive, and heavy machinery for high strength and toughness. |
| AISI 4340 QT Round Bar | C: 0.38-0.43, Mn: 0.60-0.90, Si: 0.15-0.40, Cr: 0.70-0.90, Mo: 0.15-0.25, Ni: 1.65-2.00 (quenched and tempered) | Ideal for high-stress applications including gears, shafts, and critical structural components. |
| AISI 4340 N Round Bar | C: 0.38-0.43, Mn: 0.60-0.90, Si: 0.15-0.40, Cr: 0.70-0.90, Mo: 0.15-0.25, Ni: 1.65-2.00 (normalized) | Used in applications requiring high toughness and strength in a normalized state. |
| AISI 4340 Mod Round Bar | C: 0.40-0.45, Mn: 0.70-0.90, Si: 0.15-0.40, Cr: 0.80-1.00, Mo: 0.15-0.25, Ni: 1.80-2.25 | Designed for improved ductility and toughness, suitable for forging and machining. |
| AISI 4340 H Round Bar | C: 0.40-0.45, Mn: 0.70-0.90, Si: 0.15-0.40, Cr: 1.00-1.30, Mo: 0.15-0.25, Ni: 1.80-2.25 (high strength) | Recommended for highly stressed structural components, such as aircraft landing gear. |
Available Sizes of AISI 4340 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 12 |
| 14 | 16 |
| 18 | 20 |
| 22 | 25 |
| 28 | 30 |
| 32 | 35 |
| 40 | 45 |
| 50 | 55 |
| 60 | 65 |
| 70 | 75 |
Chemical Properties of AISI 4340
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.60 - 0.90 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.70 - 0.90 |
| Nickel (Ni) | 1.65 - 2.00 |
| Molybdenum (Mo) | 0.20 - 0.30 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
Mechanical Properties of AISI 4340
| Property | Value |
|---|---|
| Tensile Strength | 980 MPa (142 ksi) |
| Yield Strength | 850 MPa (123 ksi) |
| Elongation | 12% in 50 mm |
| Reduction of Area | 50% |
| Hardness (HB) | 250-300 |
AISI 4340 Round Bar β Physical & Thermal Properties
Density of AISI 4340 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cmΒ³ | 0.284 lb/inΒ³ |
Melting Point of AISI 4340 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1460 Β°C | 2600 - 2660 Β°F |
Specific Heat of AISI 4340 Round Bar
| Specific Heat of AISI 4340 Round Bar | ||
|---|---|---|
| Specific Heat (J/kgΒ·K) | Temperature Range (Β°C) | Condition |
| 500 | 20 - 200 | Annealed |
| 460 | 200 - 600 | Annealed |
| 420 | 600 - 800 | Annealed |
Electrical Resistivity of AISI 4340 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (¡Ω·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | Normalized |
| 78 | 100 | |
| 80 | 200 | |
| 82 | 300 | |
| 85 | 400 | |
Equivalent of AISI 4340
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 34CrNiMo6 | G43400 |
| DIN 1.6563 | 34CrNiMo6 | G43400 |
Manufacturing Process & Heat Treatment of AISI 4340
Annealing
The annealing process for AISI 4340 involves heating the steel to a temperature range of 800-850Β°C, followed by controlled cooling. This treatment relieves internal stresses, refines the grain structure, and improves ductility, making the material more workable for subsequent operations.
Forging
AISI 4340 is typically forged at temperatures between 1100-1250Β°C. The forging process enhances the mechanical properties of the steel by refining the grain structure and ensuring uniformity in the material. It is essential for achieving the desired shape and dimensions while maintaining strength and toughness.
Hardening & Tempering
| Process | Temperature Range (Β°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 850-900 | Oil or Water | To increase hardness and strength by transforming austenite into martensite. |
| Tempering | 400-600 | Air | To reduce brittleness and relieve stresses introduced during hardening. |
| Quenching | Varies | Oil | To rapidly cool the steel to achieve desired hardness levels. |
The combination of these processes ensures that AISI 4340 round bars meet the stringent requirements for strength, toughness, and fatigue resistance, making them suitable for various applications in demanding environments.
Various Types
AISI 4340 Round Bar - Hot Rolled
- Diameter: 10mm to 300mm
- Condition: Hot Rolled
- Applications: Aerospace, Automotive, Industrial Machinery
AISI 4340 Round Bar - Cold Drawn
- Diameter: 5mm to 100mm
- Condition: Cold Drawn
- Applications: High-stress components, Gear shafts, Crankshafts
AISI 4340 Round Bar - Annealed
- Diameter: 20mm to 250mm
- Condition: Annealed
- Applications: Forging, Machining, Structural applications
AISI 4340 Round Bar - Quenched and Tempered
- Diameter: 30mm to 200mm
- Condition: Quenched and Tempered
- Applications: Heavy machinery, Tool making, Oil and 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 AISI 4340 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| AISI 4340 | 3 mm | $5.20 β $5.50 | βΉ430 β βΉ450 |
| AISI 4340 | 6 mm | $5.10 β $5.40 | βΉ420 β βΉ440 |
| AISI 4340 | 10 mm | $5.00 β $5.30 | βΉ410 β βΉ430 |
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 4340 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 4340 Steel Suppliers in Oman
- Alloy Steel Round Bar Exporters
- 4340 Steel Round Bar Price in Oman
- High Strength Steel Bar Manufacturers
- Oman Steel Export Market Trends
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.