4140 Forged Black Flat Bar exporter in Punjab
4140 Forged Black Flat Bar exporter in Punjab offers premium quality alloy steel bars known for their exceptional strength and durability. Manufactured through a precise forging process, these flat bars feature uniform grain structure and enhanced mechanical properties, making them ideal for demanding industrial applications. The black finish provides a protective oxide layer, improving corrosion resistance and surface hardness, which is crucial for heavy-duty usage.
These flat bars are crafted from 4140 steel, a chromium-molybdenum alloy renowned for its excellent toughness, fatigue strength, and wear resistance. Typically available in various dimensions and thicknesses, the product meets stringent industry standards such as ASTM A29 and SAE J404. Their versatility allows for machining, welding, and heat treatment, enabling customization to specific engineering requirements.
Widely utilized across sectors such as automotive, construction, manufacturing, and heavy machinery, these forged steel bars serve as key components in shafts, gears, bolts, and structural frameworks. Their capability to withstand high stress and dynamic loads makes them indispensable for critical applications that demand reliability and long service life.
With a robust export infrastructure based in Punjab, the supplier ensures timely delivery and compliance with international quality certifications. The packaging and handling processes are designed to maintain the integrity of the product during transit, catering to global industrial buyers who require consistent quality and on-time shipments.
Industrial purchasers can rely on these forged alloy steel flat bars for their superior mechanical performance and export readiness. Whether for large-scale manufacturing or specialized engineering projects, the product delivers a balance of strength, durability, and adaptability essential for modern industrial demands.
Our Approvals | Third Party Inspection
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why 4140 Forged Black Flat Bar exporter in Punjab 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 4140 Forged Black Flat Bar exporter in Punjab
- 2. How to Choose the Right Manufacturer
- 3.Comparison of 4140 Forged Black Flat Bar exporter in Punjab
- 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 4140 Forged Black Flat Bar exporter in Punjab
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 4140 Forged Black Flat Bar exporter in Punjab
| 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 4140 Forged Black Flat Bar
- ✔ High tensile strength and toughness
- ✔ Excellent wear resistance
- ✔ Suitable for high-stress applications
- ✔ Versatile and easily machinable
- ✔ Good weldability and hardenability
- ✔ Available in various dimensions and thicknesses
Technical Overview of 4140 Forged Black Flat Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| 4140 Forged Black Flat Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Used in high-stress applications such as gears, axles, and crankshafts | ASTM A829, ASTM A36 |
| 4140 Forged Black Flat Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Ideal for heavy-duty machinery and structural components | SAE J404, ASME SA-36 |
| 4140 Forged Black Flat Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Commonly used in automotive and aerospace applications | ASTM A572, ASTM A992 |
Specifications Table
| Material | 4140 Steel |
|---|---|
| Grades | ASTM A829, AISI 4140 |
| Standard | ASTM, ASME |
| Size Range | 1" to 12" Width, 0.25" to 4" Thickness |
| Length | Up to 20 Feet |
| Form | Forged Flat Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| 4140 Forged Black Flat Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr | Machinery components, automotive parts, and structural applications |
| 4140HT Forged Black Flat Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, Heat-treated | High-stress applications, gearing, and tool manufacturing |
| 4140QT Forged Black Flat Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, Quenched and tempered | Heavy-duty machinery, and precision parts requiring high tensile strength |
| 4140B Forged Black Flat Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, Boron added | Applications requiring improved hardenability and wear resistance |
| 4142 Forged Black Flat Bar | 0.40-0.45% C, 0.70-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr | High-strength applications including aerospace and automotive components |
Available Sizes of 4140 Forged Black Flat Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 25 x 6 | 100 x 10 |
| 30 x 10 | 125 x 12 |
| 40 x 10 | 150 x 15 |
| 50 x 10 | 200 x 20 |
| 60 x 15 | 250 x 25 |
| 70 x 20 | 300 x 30 |
| 80 x 20 | 350 x 35 |
| 90 x 25 | 400 x 40 |
| 100 x 30 | 450 x 45 |
| 120 x 30 | 500 x 50 |
Chemical Properties of 4140 Forged Black Flat Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
| Iron (Fe) | Balance |
Mechanical Properties of 4140 Forged Black Flat Bar
| Property | Value |
|---|---|
| Tensile Strength | 655 MPa |
| Yield Strength | 415 MPa |
| Elongation | 20% |
| Hardness (Brinell) | 207 HB |
| Modulus of Elasticity | 210 GPa |
4140 Forged Black Flat Bar – Physical & Thermal Properties
Density of 4140 Forged Black Flat Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
Melting Point of 4140 Forged Black Flat Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1420 - 1540 °C | 2600 - 2800 °F |
Specific Heat of 4140 Forged Black Flat Bar
| Specific Heat of 4140 Forged Black Flat Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 460 | 20 - 300 | Room Temperature |
| 500 | 300 - 800 | Heating |
| 540 | 800 - 1200 | High Temperature |
Electrical Resistivity of 4140 Forged Black Flat Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 60 | 20 | As Forged |
| 62 | 100 | |
| 65 | 200 | |
| 68 | 300 | |
| 70 | 400 | |
Equivalent of 4140 Forged Black Flat Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A829 | 42CrMo4 | G41400 |
| DIN 1.7225 | 42CrMo4 | G41400 |
Manufacturing Process & Heat Treatment of 4140 Forged Black Flat Bar
Annealing
Annealing of 4140 forged black flat bars is performed to relieve internal stresses and improve machinability. The bars are heated to a temperature of approximately 850-900°C and held for a sufficient time to allow for uniform temperature throughout the material. After soaking, the material is slowly cooled in a furnace to room temperature, resulting in a softer and more workable product.
Forging
The forging process for 4140 black flat bars involves heating the steel to a temperature range of 1100-1250°C, where it becomes malleable. The heated steel is then shaped using hydraulic presses or hammers, which impart specific mechanical properties and grain structure. This process enhances the strength and toughness of the final product, making it suitable for various industrial applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 830-860 | Oil | To increase hardness and strength |
| Tempering | 400-600 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 600-650 | Air | To eliminate residual stresses |
The combination of forging, hardening, and tempering processes ensures that the 4140 forged black flat bars possess excellent mechanical properties, making them ideal for applications in construction, automotive, and machinery industries.
Various Types
4140 Forged Black Flat Bar - Standard
- Width: 50mm, Thickness: 10mm, Length: 6m
- Condition: Hot Rolled
- Applications: Machinery Components, Tooling, Automotive Parts
4140 Forged Black Flat Bar - Heavy Duty
- Width: 75mm, Thickness: 15mm, Length: 6m
- Condition: Heat Treated
- Applications: Structural Support, Heavy Machinery
4140 Forged Black Flat Bar - Custom Size
- Width: Customizable, Thickness: Customizable, Length: Customizable
- Condition: Cold Drawn
- Applications: Specialized Applications, Custom Fabrication
4140 Forged Black Flat Bar - High Tensile
- Width: 100mm, Thickness: 20mm, Length: 6m
- Condition: Quenched and Tempered
- Applications: Aerospace Components, High-Stress 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 4140 Forged Black Flat Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| 4140 Forged Black Flat Bar | 3 mm | $2.50 – $2.70 | ₹207 – ₹224 |
| 4140 Forged Black Flat Bar | 6 mm | $2.55 – $2.75 | ₹212 – ₹229 |
| 4140 Forged Black Flat Bar | 10 mm | $2.60 – $2.80 | ₹217 – ₹234 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for 4140 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
- 4140 Steel Flat Bar Suppliers in Punjab
- Forged Steel Bar Manufacturers in Punjab
- 4140 Alloy Steel Exporters in India
- Black Flat Bar Stockists in Punjab
- 4140 Steel Plate Suppliers in Punjab
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.