AISI 4340 Forged Black Flat Bar exporter in Bahrain
AISI 4340 Forged Black Flat Bar exporter in Bahrain offers high-quality alloy steel bars known for their superior strength and toughness. These bars undergo a forging process that enhances their mechanical properties, making them suitable for demanding industrial applications. The black finish provides additional surface protection and aesthetic appeal, ensuring durability during transportation and storage.
The flat bars are crafted from AISI 4340 steel, a nickel-chromium-molybdenum alloy renowned for its excellent hardenability and fatigue resistance. This material is commonly used in aerospace, automotive, and heavy machinery sectors where high tensile strength and impact resistance are critical. The forged manufacturing method ensures uniform grain structure and improved dimensional stability, catering to precision engineering requirements.
Designed to meet stringent international standards, these flat bars come in various dimensions to accommodate diverse engineering needs. Their versatility allows them to be machined, welded, and heat-treated efficiently, providing flexibility for custom fabrication projects. The black oxide coating further aids in corrosion resistance, making these bars ideal for both indoor and outdoor industrial environments.
Export readiness is a key advantage offered by suppliers in Bahrain, ensuring timely delivery with proper packaging and certification. Industrial buyers can rely on consistent quality control and compliance with export regulations, facilitating smooth logistics and supply chain management. This makes the product an excellent choice for global manufacturers seeking reliable raw materials for structural and mechanical components.
Overall, these forged flat bars serve as a robust solution for applications requiring high-performance alloy steel with enhanced mechanical properties. Whether used in construction, heavy equipment, or precision tooling, the combination of material strength and manufacturing excellence guarantees long-term operational efficiency and value.
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 Forged Black Flat Bar exporter in Bahrain 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 Forged Black Flat Bar exporter in Bahrain
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4340 Forged Black Flat 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 4340 Forged Black Flat 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 4340 Forged Black Flat 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 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 Forged Black Flat Bar
- ✔ High tensile strength and toughness
- ✔ Excellent fatigue resistance
- ✔ Suitable for high-stress applications
- ✔ Good weldability and machinability
- ✔ Ideal for heat treatment processes
- ✔ Available in various sizes and thicknesses
Technical Overview of AISI 4340 Forged Black Flat Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| AISI 4340 Forged Black Flat 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 such as automotive and aerospace components, gears, and shafts. | ASTM A29, ASTM A322, ASTM A829 |
| AISI 4340 Forged Black Flat 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%) | Utilized in manufacturing heavy-duty machinery and structural components requiring high tensile strength. | AMS 6414, SAE J403 |
| AISI 4340 Forged Black Flat 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%) | Ideal for applications in oil and gas, military, and construction sectors where durability is crucial. | ISO 683-1, EN 10083-3 |
Specifications Table
| Material | AISI 4340 |
|---|---|
| Grades | 4340 |
| Standard | ASTM A829 |
| Size Range | 1.0" to 10.0" Width x 0.25" to 3.0" Thickness |
| Length | Up to 20 Feet |
| Form | Forged Black Flat Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| AISI 4340 Forged Black Flat Bar | Carbon: 0.38-0.43%, Manganese: 0.60-0.90%, Silicon: 0.15-0.40%, Chromium: 0.70-0.90%, Nickel: 1.65-2.00%, Molybdenum: 0.15-0.25% | High strength structural applications, aerospace components, automotive parts, machinery components |
| AISI 4340 Modified | Carbon: 0.40%, Manganese: 0.75%, Silicon: 0.25%, Chromium: 1.00%, Nickel: 1.80%, Molybdenum: 0.25% | High fatigue strength applications, helicopter rotor hubs, high-stress parts |
| AISI 4340 Heat Treated | Carbon: 0.40-0.50%, Manganese: 0.60-0.90%, Silicon: 0.15-0.40%, Chromium: 0.70-0.90%, Nickel: 1.70-2.00%, Molybdenum: 0.15-0.25% | Heavy machinery, tools, and dies, high-performance components |
| AISI 4340 Ground Flat Stock | Carbon: 0.38-0.43%, Manganese: 0.60-0.90%, Silicon: 0.15-0.40%, Chromium: 0.70-0.90%, Nickel: 1.65-2.00%, Molybdenum: 0.15-0.25% | Precision machining applications, custom tooling, and fixture components |
| AISI 4340 Cold Drawn | Carbon: 0.38-0.43%, Manganese: 0.60-0.90%, Silicon: 0.15-0.40%, Chromium: 0.70-0.90%, Nickel: 1.65-2.00%, Molybdenum: 0.15-0.25% | Automotive gears, shafts, and axles requiring tight tolerances |
Available Sizes of AISI 4340 Forged Black Flat Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 x 6 | 50 x 10 |
| 30 x 8 | 60 x 12 |
| 40 x 10 | 75 x 15 |
| 45 x 10 | 80 x 20 |
| 50 x 12 | 100 x 25 |
| 60 x 15 | 120 x 30 |
| 70 x 20 | 150 x 40 |
| 80 x 25 | 200 x 50 |
| 90 x 30 | 250 x 60 |
| 100 x 35 | 300 x 70 |
Chemical Properties of AISI 4340 Forged Black Flat Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.60 - 0.90 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | 0.15 - 0.40 |
| Nickel (Ni) | 1.65 - 2.00 |
| Chromium (Cr) | 0.70 - 0.90 |
| Molybdenum (Mo) | 0.15 - 0.25 |
Mechanical Properties of AISI 4340 Forged Black Flat Bar
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 1080 - 1180 |
| Yield Strength (MPa) | 930 |
| Elongation (%) | 12 - 15 |
| Hardness (HB) | 321 - 387 |
| Modulus of Elasticity (GPa) | 210 |
AISI 4340 Forged Black Flat Bar – Physical & Thermal Properties
Density of AISI 4340 Forged Black Flat Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
Melting Point of AISI 4340 Forged Black Flat Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1540 °C | 2600 - 2800 °F |
Specific Heat of AISI 4340 Forged Black Flat Bar
| Specific Heat of AISI 4340 Forged Black Flat Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Annealed |
| 460 | 100 - 400 | Quenched |
| 390 | 400 - 800 | Tempered |
Electrical Resistivity of AISI 4340 Forged Black Flat Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | Quenched and Tempered |
| 79 | 100 | |
| 83 | 200 | |
| 87 | 300 | |
| 90 | 400 | |
Equivalent of AISI 4340 Forged Black Flat Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 34CrNiMo6 | G43400 |
| EN 10083-3 | 42CrMo4 | 1.7225 |
Manufacturing Process & Heat Treatment of AISI 4340 Forged Black Flat Bar
Annealing
Annealing of AISI 4340 involves heating the steel to a temperature range of 800-850°C, followed by slow cooling. This process is crucial to relieve internal stresses, improve ductility, and refine the grain structure, making the material easier to machine and form.
Forging
The forging of AISI 4340 is performed at elevated temperatures, typically between 1050-1200°C. This process enhances the mechanical properties of the steel by aligning the grain structure and eliminating defects. The forged flat bars are then cooled at a controlled rate to maintain their integrity.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 850-880 | Oil | To increase hardness and strength |
| Tempering | 400-600 | Air | To reduce brittleness while maintaining strength |
| Stress Relieving | 600-650 | Air | To alleviate residual stresses from the hardening process |
The combination of these processes ensures that AISI 4340 forged black flat bars meet the stringent requirements for strength, toughness, and durability, making them suitable for various industrial applications.
Various Types
AISI 4340 Forged Black Flat Bar - Standard
- Thickness: 25 mm, Width: 100 mm, Length: 3000 mm
- Condition: Hot Rolled
- Applications: Automotive components, Structural applications
AISI 4340 Forged Black Flat Bar - High Strength
- Thickness: 30 mm, Width: 150 mm, Length: 4000 mm
- Condition: Quenched and Tempered
- Applications: Aerospace components, Heavy machinery
AISI 4340 Forged Black Flat Bar - Custom Sizes
- Thickness: 20 mm to 50 mm, Width: 50 mm to 200 mm, Length: Customized
- Condition: Annealed
- Applications: Oil and gas industry, Marine applications
AISI 4340 Forged Black Flat Bar - Specialty Grades
- Thickness: 15 mm, Width: 75 mm, Length: 2500 mm
- Condition: Cold Drawn
- Applications: Tooling, Specialized machinery
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 Forged Black Flat Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| AISI 4340 | 3 mm | $2.50 – $2.70 | ₹207 – ₹217 |
| AISI 4340 | 6 mm | $2.40 – $2.60 | ₹199 – ₹209 |
| AISI 4340 | 10 mm | $2.30 – $2.50 | ₹192 – ₹202 |
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 Forged Black Flat 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 4340 Steel Properties and Applications
- Forged Steel Bar Suppliers in Bahrain
- AISI 4340 Flat Bar Manufacturer
- Heat Treatment of AISI 4340 Steel
- Steel Exporters in the Middle East
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.