AISI 4340 Forged Black Flat Bar exporter in Turkey
AISI 4340 Forged Black Flat Bar exporter in Turkey offers a robust solution for industries requiring high-strength alloy steel components. Known for its excellent toughness, fatigue resistance, and hardenability, AISI 4340 is a nickel-chromium-molybdenum alloy steel widely utilized in demanding mechanical applications. The forged black flat bar form provides enhanced structural integrity, making it an ideal choice for critical engineering parts.
The flat bars are precision-forged to ensure uniform grain structure and superior mechanical properties. Typically, these bars exhibit tensile strength ranging from 90,000 to 110,000 psi, with yield strength around 70,000 psi, depending on heat treatment. The black finish indicates a protective oxide layer that enhances corrosion resistance during storage and transportation, preserving the materialβs quality before final processing.
Industries such as automotive, aerospace, heavy machinery, and oil & gas sectors extensively use these alloy steel bars for manufacturing shafts, gears, crankshafts, and other high-stress components. Their ability to withstand high loads and resist wear makes them indispensable in applications where reliability and safety are paramount. Additionally, the flat bar shape facilitates straightforward machining and fabrication processes.
Turkeyβs strategic location and advanced metallurgical facilities enable efficient export operations, ensuring timely delivery and compliance with international quality standards. Exporters provide detailed certifications, including chemical composition analysis and mechanical test reports, to meet the stringent requirements of global industrial buyers. This readiness for export is crucial for clients looking to source premium raw materials with assured traceability and performance.
For industrial buyers seeking durable and high-performance alloy steel flat bars, sourcing from a reputable Turkish exporter offers both quality assurance and competitive logistics solutions. The combination of superior material properties, precision forging, and export expertise makes these AISI 4340 black flat bars a reliable choice for critical manufacturing needs worldwide.
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 Forged Black Flat Bar exporter in Turkey 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 Forged Black Flat Bar exporter in Turkey
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4340 Forged Black Flat Bar exporter in Turkey
- 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 Turkey
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 Turkey
| 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 Forged Black Flat Bar
- β High tensile strength and durability
- β Excellent fatigue resistance for demanding applications
- β Good weldability and machinability properties
- β Available in various sizes and thicknesses
- β Suitable for heat treatment to enhance mechanical properties
- β Resistant to abrasion and wear for long-lasting performance
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%), Phosphorus (max 0.035%), Sulfur (max 0.040%), Chromium (0.70-0.90%), Nickel (1.65-2.00%), Molybdenum (0.15-0.25%) | Used in high-strength applications such as gears, shafts, and heavy machinery components. | ASTM A829, ASME SA829, SAE J403 |
| AISI 4340 Forged Black Flat 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 (0.15-0.25%) | Ideal for applications requiring high tensile strength and toughness. | ASTM A829, ASME SA829, SAE J403 |
| AISI 4340 Forged Black Flat 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 (0.15-0.25%) | Commonly used in the aerospace and automotive industries for structural components. | ASTM A829, ASME SA829, SAE J403 |
Specifications Table
| Material | AISI 4340 |
|---|---|
| Grades | 4340 |
| Standard | ASTM A29/A29M |
| Size Range | 1" x 4" to 2" x 6" |
| Length | 12 ft to 20 ft |
| Form | Forged 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%), Nickel (1.65-2.00%), Chromium (0.70-0.90%), Molybdenum (0.15-0.25%) | Aerospace, Automotive, Heavy Machinery, Oil and Gas Equipment |
| AISI 4340 Forged Black Flat Bar | Carbon (0.38-0.43%), Manganese (0.60-0.90%), Silicon (0.15-0.40%), Nickel (1.65-2.00%), Chromium (0.70-0.90%), Molybdenum (0.15-0.25%) | High-Strength Structural Components, Gear Manufacturing, Hydraulic Parts |
| AISI 4340 Forged Black Flat Bar | Carbon (0.38-0.43%), Manganese (0.60-0.90%), Silicon (0.15-0.40%), Nickel (1.65-2.00%), Chromium (0.70-0.90%), Molybdenum (0.15-0.25%) | Tooling, Die Making, High-Stress Applications |
| AISI 4340 Forged Black Flat Bar | Carbon (0.38-0.43%), Manganese (0.60-0.90%), Silicon (0.15-0.40%), Nickel (1.65-2.00%), Chromium (0.70-0.90%), Molybdenum (0.15-0.25%) | Marine Applications, Mining Equipment, Pressure Vessels |
| AISI 4340 Forged Black Flat Bar | Carbon (0.38-0.43%), Manganese (0.60-0.90%), Silicon (0.15-0.40%), Nickel (1.65-2.00%), Chromium (0.70-0.90%), Molybdenum (0.15-0.25%) | Construction Equipment, Automotive Components, Aerospace Fasteners |
Available Sizes of AISI 4340 Forged Black Flat Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 20 | 100 |
| 25 | 125 |
| 30 | 150 |
| 35 | 175 |
| 40 | 200 |
| 45 | 225 |
| 50 | 250 |
| 55 | 275 |
| 60 | 300 |
| 65 | 325 |
Chemical Properties of AISI 4340 Forged Black Flat Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.60 - 0.80 |
| Chromium (Cr) | 0.70 - 0.90 |
| Nickel (Ni) | 1.65 - 2.00 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Silicon (Si) | 0.15 - 0.40 |
| Phosphorus (P) | Max 0.035 |
| Sulfur (S) | Max 0.040 |
Mechanical Properties of AISI 4340 Forged Black Flat Bar
| Property | Value |
|---|---|
| Tensile Strength | 1080 MPa (156 ksi) |
| Yield Strength | 930 MPa (135 ksi) |
| Elongation | 14% |
| Reduction of Area | 50% |
| Hardness (Brinell) | 250 - 300 HB |
AISI 4340 Forged Black Flat Bar β Physical & Thermal Properties
Density of AISI 4340 Forged Black Flat Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cmΒ³ | 0.284 lb/inΒ³ |
Melting Point of AISI 4340 Forged Black Flat Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1460 Β°C | 2600 - 2660 Β°F |
Specific Heat of AISI 4340 Forged Black Flat Bar
| Specific Heat of AISI 4340 Forged Black Flat Bar | ||
|---|---|---|
| Specific Heat (J/kgΒ·K) | Temperature Range (Β°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 300 | Heating |
| 700 | 300 - 500 | High Temperature |
Electrical Resistivity of AISI 4340 Forged Black Flat Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (¡Ω·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | As-Forged |
| 80 | 100 | |
| 85 | 200 | |
| 90 | 300 | |
| 95 | 400 | |
Equivalent of AISI 4340 Forged Black Flat Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 34CrNiMo6 | G43400 |
| DIN 1.6582 | 34CrNiMo6 | G43400 |
Manufacturing Process & Heat Treatment of AISI 4340 Forged Black Flat Bar
Annealing
The annealing process for AISI 4340 involves heating the forged flat bars to a temperature range of 850-900 Β°C, followed by a slow cooling rate in a furnace or air. This process softens the steel, relieves internal stresses, and improves its machinability.
Forging
The forging of AISI 4340 black flat bars is conducted at elevated temperatures, typically between 1150-1250 Β°C. This hot working process enhances the mechanical properties of the steel by refining the grain structure and increasing its strength and toughness.
Hardening & Tempering
| Process | Temperature Range (Β°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 800-850 | Oil | To increase hardness and strength |
| Tempering | 400-600 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 500-600 | Air | To relieve residual stresses after hardening |
The combination of these processes ensures that AISI 4340 forged black flat bars achieve optimal mechanical properties suitable for various industrial applications.
Various Types
AISI 4340 Forged Black Flat Bar - Standard
- Width: 50 mm, Thickness: 10 mm, Length: 2000 mm
- Condition: Hot Rolled
- Applications: Automotive components, Aerospace parts
AISI 4340 Forged Black Flat Bar - Heavy Duty
- Width: 100 mm, Thickness: 20 mm, Length: 3000 mm
- Condition: Quenched and Tempered
- Applications: Machine parts, Structural applications
AISI 4340 Forged Black Flat Bar - Custom Size
- Custom dimensions available on request
- Condition: Normalized
- Applications: Specialized industrial applications
AISI 4340 Forged Black Flat Bar - High Strength
- Width: 75 mm, Thickness: 15 mm, Length: 2500 mm
- Condition: Cold Drawn
- Applications: High-stress applications, Heavy 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 | $4.20 β $4.50 | βΉ350 β βΉ375 |
| AISI 4340 | 6 mm | $4.00 β $4.30 | βΉ340 β βΉ360 |
| AISI 4340 | 10 mm | $3.80 β $4.10 | βΉ320 β βΉ340 |
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: 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 Properties and Applications
- Forged Steel Bar Suppliers in Turkey
- AISI 4340 Flat Bar Manufacturer
- Heat Treatment of AISI 4340 Steel
- Black Flat Bar Specifications and Standards
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.