AISI 4340 Forged Black Flat Bar exporter in Malaysia
AISI 4340 Forged Black Flat Bar exporter in Malaysia offers high-strength alloy steel products known for their excellent toughness, fatigue resistance, and hardenability. This particular grade is widely used in demanding industrial applications due to its balanced combination of mechanical properties and durability. The black finish on the flat bars provides additional corrosion resistance and surface protection, making it suitable for environments where wear and tear are significant concerns.
The flat bars are manufactured through a forging process that enhances the grain structure, resulting in improved mechanical performance compared to standard rolled products. AISI 4340 is a nickel-chromium-molybdenum alloy steel, characterized by its high tensile strength, impact resistance, and ability to maintain structural integrity under high stress. Typical dimensions and thicknesses are available to meet diverse engineering requirements, ensuring compatibility with various machinery and fabrication needs.
These forged flat bars are extensively utilized in heavy machinery components, automotive parts, aerospace structures, and industrial tooling. Their high fatigue strength makes them ideal for shafts, gears, and fasteners that endure cyclic loading. The black oxide coating not only enhances corrosion resistance but also reduces friction, which is beneficial in dynamic applications where surface wear could lead to premature failure.
Export readiness is a key aspect of suppliers in Malaysia, with strict adherence to international quality standards and certifications. Packaging and logistics are optimized to preserve the integrity of the bars during transit, ensuring timely delivery to global clients. Buyers can expect detailed mill test reports and material certifications that comply with ASTM and SAE specifications, facilitating seamless integration into global supply chains.
For industrial buyers seeking reliable and high-performance alloy steel flat bars, sourcing from a reputable exporter in Malaysia guarantees access to premium forged AISI 4340 products. The combination of superior material properties, precise manufacturing, and export compliance makes these flat bars an excellent choice for critical engineering applications worldwide.
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 Malaysia 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 Malaysia
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4340 Forged Black Flat Bar exporter in Malaysia
- 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 Malaysia
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 Malaysia
| 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 for demanding applications
- ✔ Excellent toughness and fatigue resistance
- ✔ Superior hardenability suitable for heat treatment processes
- ✔ Consistent quality through meticulous forging process
- ✔ Versatile for various industries including automotive and aerospace
- ✔ Corrosion-resistant properties for enhanced durability
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%, Nickel: 1.65-2.00%, Chromium: 0.70-0.90%, Molybdenum: 0.15-0.25% | Manufacturing of gears, shafts, and other high-strength components | ASTM A829, ASTM A36 |
| AISI 4340 Forged Black Flat Bar | Carbon: 0.38-0.43%, Manganese: 0.60-0.90%, Nickel: 1.65-2.00%, Chromium: 0.70-0.90%, Molybdenum: 0.15-0.25% | Applications requiring good toughness and fatigue resistance | SAE J403, AMS 6414 |
| AISI 4340 Forged Black Flat Bar | Carbon: 0.38-0.43%, Manganese: 0.60-0.90%, Nickel: 1.65-2.00%, Chromium: 0.70-0.90%, Molybdenum: 0.15-0.25% | Used in aerospace, automotive, and heavy machinery industries | ISO 683-1, EN 10083-3 |
Specifications Table
| Material | AISI 4340 |
|---|---|
| Grades | 4340 |
| Standard | ASTM A829 |
| Size Range | 25mm x 5mm to 150mm x 25mm |
| Length | Up to 6000mm |
| Form | Forged Black Flat Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| AISI 4340 | 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 aerospace, automotive components, and high-strength applications. |
| AISI 4340 Heat Treated | 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 heavy-duty gears, shafts, and structural components requiring enhanced strength. |
| AISI 4340 Normalized | 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 applications in oil and gas exploration, automotive, and military. |
| AISI 4340 Forged | 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 manufacturing aircraft landing gear and high-performance engine parts. |
| AISI 4340 Annealed | 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 for applications requiring improved machinability and welding capabilities. |
Available Sizes of AISI 4340 Forged Black Flat Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 x 100 | 20 x 100 |
| 10 x 150 | 20 x 150 |
| 10 x 200 | 20 x 200 |
| 15 x 100 | 25 x 100 |
| 15 x 150 | 25 x 150 |
| 15 x 200 | 25 x 200 |
| 20 x 250 | 30 x 100 |
| 20 x 300 | 30 x 150 |
| 25 x 250 | 40 x 100 |
| 25 x 300 | 40 x 150 |
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 |
| Sulfur (S) | 0.04 max |
| Phosphorus (P) | 0.04 max |
Mechanical Properties of AISI 4340 Forged Black Flat Bar
| Property | Value |
|---|---|
| Tensile Strength | 1080 MPa (156 ksi) |
| Yield Strength | 930 MPa (135 ksi) |
| Elongation | 12% (in 50 mm) |
| Reduction of Area | 50% |
| Hardness (Brinell) | 330 HB |
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 - 400 | Annealed |
| 480 | 400 - 800 | Tempered |
| 460 | 800 - 1000 | Quenched |
Electrical Resistivity of AISI 4340 Forged Black Flat Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | As Forged |
| 83 | 100 | |
| 90 | 200 | |
| 95 | 300 | |
| 100 | 400 | |
Equivalent of AISI 4340 Forged Black Flat Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 34CrNiMo6 | G43400 |
| EN 10083-3 | 34CrNiMo6 | G43400 |
Manufacturing Process & Heat Treatment of AISI 4340 Forged Black Flat Bar
Annealing
Annealing of AISI 4340 involves heating the forged flat bars to a temperature of approximately 850-900°C and holding them at this temperature for a period of time to relieve internal stresses and improve machinability. The bars are then slowly cooled in the furnace to achieve a uniform microstructure.
Forging
The forging process for AISI 4340 involves heating the steel to a temperature range of 1100-1250°C, followed by shaping it into flat bar form using hydraulic or mechanical presses. This process enhances the mechanical properties of the steel through grain refinement and alignment of the microstructure.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 820-860 | Oil or Water | To increase hardness and strength by transforming the microstructure to martensite. |
| Tempering | 400-700 | Air | To reduce brittleness and relieve stresses, achieving a balance between hardness and toughness. |
| Stress Relieving | 500-600 | Air | To eliminate residual stresses after machining or hardening processes. |
The manufacturing and heat treatment processes of AISI 4340 forged black flat bars are crucial in achieving the desired mechanical properties for various industrial applications, ensuring reliability and performance in demanding environments.
Various Types
AISI 4340 Forged Black Flat Bar - Standard
- Dimensions: 50mm x 10mm to 200mm x 20mm
- Condition: Hot Rolled, Black Surface
- Applications: Automotive, Aerospace, Machinery Components
AISI 4340 Forged Black Flat Bar - Annealed
- Dimensions: 25mm x 5mm to 150mm x 15mm
- Condition: Annealed, Black Surface
- Applications: Gear Manufacturing, Heavy Equipment
AISI 4340 Forged Black Flat Bar - Quenched and Tempered
- Dimensions: 40mm x 8mm to 160mm x 12mm
- Condition: Quenched and Tempered, Black Surface
- Applications: Structural Components, Oil and Gas Industry
AISI 4340 Forged Black Flat Bar - Custom Sizes
- Dimensions: Customizable upon request
- Condition: Various conditions available
- Applications: Specialized Industrial 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 4340 Forged Black Flat Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| AISI 4340 Forged Black Flat Bar | 3 mm | $3.20 – $3.50 | ₹265 – ₹290 |
| AISI 4340 Forged Black Flat Bar | 6 mm | $3.10 – $3.40 | ₹260 – ₹285 |
| AISI 4340 Forged Black Flat Bar | 10 mm | $3.00 – $3.30 | ₹255 – ₹280 |
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 4140 Forged Black Flat Bar exporter in Malaysia
- AISI 4340 Steel Properties and Applications
- AISI 4340 Forged Round Bar supplier in Malaysia
- AISI 4340 Heat Treatment Process
- AISI 4340 Forged Black Flat Bar price in Malaysia
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.