AISI 4340 Round Bar exporter in Kuwait
AISI 4340 Round Bar exporter in Kuwait offers high-quality alloy steel bars known for their exceptional strength, toughness, and fatigue resistance. This nickel-chromium-molybdenum steel grade is widely used in heavy-duty industrial applications requiring superior mechanical properties and reliability. The round bars are manufactured to precise dimensions and heat-treated to achieve optimal hardness and tensile strength, making them ideal for demanding engineering projects.
The round bars are available in various diameters and lengths, catering to diverse industrial needs. With a typical tensile strength ranging from 930 to 1080 MPa and excellent hardenability, these bars are suitable for machining, forging, and fabrication processes. Their chemical composition ensures good resistance to wear and corrosion, enhancing the durability of finished components in harsh operating environments.
Common applications include automotive parts such as crankshafts and gears, aerospace components, heavy machinery, and structural parts that require high fatigue strength. The versatility of this alloy steel enables its use in manufacturing shafts, bolts, and other critical components that must withstand high stress and impact loads without failure.
Exporters in Kuwait maintain strict quality control and comply with international standards such as ASTM A29/A29M to ensure the product meets global industrial requirements. The round bars are carefully packaged and shipped, guaranteeing safe delivery and timely availability for industrial buyers worldwide. This export readiness makes them a reliable choice for companies seeking premium alloy steel products in the Middle East region.
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 4340 Round Bar exporter in Kuwait 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 4340 Round Bar exporter in Kuwait
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4340 Round Bar exporter in Kuwait
- 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 Kuwait
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 Kuwait
| 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 4340 Round Bar
- ✔ High tensile strength and toughness
- ✔ Excellent hardenability for heat treatment
- ✔ Good fatigue resistance for dynamic applications
- ✔ Superior wear resistance due to alloying elements
- ✔ Versatile applications across various industries
- ✔ Available in various sizes and specifications
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%), Phosphorus (max 0.035%), Sulfur (max 0.040%), Chromium (0.70-0.90%), Nickel (1.65-2.00%), Molybdenum (0.20-0.30%) | Used in the manufacture of high-strength structural components such as gears, axles, and shafts. | ASTM A29/A29M, ASTM A322, AMS 6349 |
| AISI 4340 Round Bar | Carbon (0.38-0.43%), Manganese (0.60-0.90%), Phosphorus (max 0.035%), Sulfur (max 0.040%), Chromium (0.70-0.90%), Nickel (1.65-2.00%), Molybdenum (0.20-0.30%) | Commonly used in aerospace and automotive applications due to its excellent toughness and fatigue resistance. | ASTM A29/A29M, ASTM A322, AMS 6349 |
| AISI 4340 Round Bar | Carbon (0.38-0.43%), Manganese (0.60-0.90%), Phosphorus (max 0.035%), Sulfur (max 0.040%), Chromium (0.70-0.90%), Nickel (1.65-2.00%), Molybdenum (0.20-0.30%) | Ideal for applications requiring high strength at elevated temperatures and under high stress. | ASTM A29/A29M, ASTM A322, AMS 6349 |
Specifications Table
| Material | AISI 4340 |
|---|---|
| Grades | 4340 |
| Standard | ASTM A29/A29M |
| Size Range | 16 mm to 300 mm diameter |
| Length | Up to 6 meters |
| 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 high strength applications such as aircraft landing gear, automotive components, and heavy machinery. |
| AISI 4340 Heat Treated 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% | Suitable for applications requiring enhanced toughness and fatigue resistance, such as in tooling and dies. |
| AISI 4340 Normalized 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% | Commonly used in production of parts where high strength and wear resistance are critical. |
| AISI 4340 Stress Relieved 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 applications where dimensional stability after machining is essential. |
| AISI 4340 Quenched and Tempered 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% | Ideal for highly stressed components in automotive and aerospace industries. |
Available Sizes of AISI 4340 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 20 |
| 25 | 30 |
| 35 | 40 |
| 45 | 50 |
| 55 | 60 |
| 65 | 70 |
| 75 | 80 |
| 85 | 90 |
| 95 | 100 |
| 110 | 120 |
Chemical Properties of AISI 4340
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.60 - 0.80 |
| Silicon (Si) | 0.15 - 0.40 |
| Nickel (Ni) | 1.65 - 2.00 |
| Chromium (Cr) | 0.70 - 0.90 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
Mechanical Properties of AISI 4340
| Property | Value |
|---|---|
| Tensile Strength | 1080 MPa (156 ksi) |
| Yield Strength | 930 MPa (135 ksi) |
| Elongation | 15% |
| Hardness | 25 HRC |
| Modulus of Elasticity | 210 GPa (30.5 x 106 psi) |
AISI 4340 Round Bar – Physical & Thermal Properties
Density of AISI 4340 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7850 kg/m³ | 490 lb/ft³ |
Melting Point of AISI 4340 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1540 °C | 2600 - 2800 °F |
Specific Heat of AISI 4340 Round Bar
| Specific Heat of AISI 4340 Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Annealed |
| 460 | 100 - 200 | Annealed |
| 420 | 200 - 400 | Annealed |
Electrical Resistivity of AISI 4340 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 72 | 20 | Normalized |
| 74 | 100 | |
| 76 | 200 | |
| 78 | 300 | |
| 80 | 400 | |
Equivalent of AISI 4340 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A829 | 34CrNiMo6 | G43400 |
| EN 10083-3 | 42CrMo4 | 1.7225 |
Manufacturing Process & Heat Treatment of AISI 4340
Annealing
The annealing process for AISI 4340 involves heating the steel to a temperature of approximately 850°C to 900°C, followed by slow cooling. This process helps to relieve internal stresses, improve machinability, and enhance the uniformity of the microstructure, resulting in improved toughness and ductility.
Forging
AISI 4340 is typically forged at temperatures ranging from 1100°C to 1250°C. During the forging process, the steel is shaped through deformation which refines the grain structure, enhances its mechanical properties, and ensures better performance in high-stress applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 830 - 860 | Oil | To increase hardness and strength |
| Tempering | 500 - 700 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 600 - 650 | Air | To relieve residual stresses after machining |
The manufacturing and heat treatment processes of AISI 4340 are critical in achieving the desired mechanical properties for various applications, ensuring high performance and reliability in demanding environments.
Various Types
AISI 4340 Round Bar - Standard
- Diameter: 20mm to 300mm
- Condition: Hot Rolled, Cold Drawn
- Applications: Aerospace, Automotive, Heavy Machinery
AISI 4340 Round Bar - High Strength
- Diameter: 25mm to 150mm
- Condition: Quenched and Tempered
- Applications: Oil and Gas, Military, Construction
AISI 4340 Round Bar - Custom Sizes
- Diameter: Custom dimensions available
- Condition: Various heat treatments
- Applications: Specialized tooling, High-performance parts
AISI 4340 Round Bar - Alloy Steel
- Diameter: 15mm to 200mm
- Condition: Annealed, Normalized
- Applications: Gear manufacturing, Heavy-duty 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 4340 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| AISI 4340 | 3 mm | $3.50 – $4.00 | ₹290 – ₹330 |
| AISI 4340 | 6 mm | $3.20 – $3.80 | ₹260 – ₹310 |
| AISI 4340 | 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 AISI 4340 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 Round Bar exporter in Kuwait
- AISI 4340 Steel suppliers in Kuwait
- AISI 4340 Round Bar price in Kuwait
- AISI 4340 Round Bar manufacturers in Kuwait
- AISI 4340 Round Bar specifications
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.