4140 Round Bar exporter in Delhi
4140 Round Bar exporter in Delhi specializes in supplying high-quality alloy steel bars known for their excellent strength, toughness, and wear resistance. These round bars are manufactured from 4140 grade steel, a chromium-molybdenum alloy widely used in demanding industrial applications. The product boasts superior mechanical properties, including high tensile strength and good fatigue resistance, making it suitable for various heavy-duty components.
The 4140 alloy steel round bars are precision-engineered to meet stringent international standards such as ASTM A29 and AISI specifications. Available in multiple diameters and lengths, these bars undergo heat treatment processes like quenching and tempering to enhance hardness and durability. Their exceptional machinability and weldability make them a preferred choice for manufacturing shafts, gears, bolts, and other critical parts.
Industries such as automotive, aerospace, construction, and heavy machinery extensively utilize these alloy steel bars due to their ability to withstand high stress and harsh environments. The versatility of 4140 round bars allows them to perform reliably in applications requiring wear resistance, impact strength, and corrosion resistance. This makes them ideal for producing structural components and tools subjected to dynamic loads.
Export readiness is a key aspect of suppliers operating from Delhi, ensuring that these high-grade steel bars are packaged and shipped following global logistics protocols. Exporters maintain rigorous quality control and provide necessary certifications, facilitating seamless international trade. Buyers can expect timely delivery and compliance with export regulations, making these alloy steel bars a dependable choice for global industrial procurement.
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 Round Bar exporter in Delhi 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 Round Bar exporter in Delhi
- 2. How to Choose the Right Manufacturer
- 3.Comparison of 4140 Round Bar exporter in Delhi
- 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 Round Bar exporter in Delhi
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 Round Bar exporter in Delhi
| 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 Round Bar
- ✔ Excellent tensile strength and toughness
- ✔ High resistance to wear and abrasion
- ✔ Suitable for heat treatment and hardening processes
- ✔ Versatile applications in various industries
- ✔ Good machinability for easy fabrication
- ✔ Available in various diameters and lengths to meet specifications
Technical Overview of 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.10% Mo | Used in manufacturing high-strength components such as gears, shafts, and axles | ASTM A829, ASTM A36, SAE J403 |
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.10% Mo | Applied in the automotive and aerospace industries for structural applications | ASTM A829, ASTM A36, SAE J403 |
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.10% Mo | Ideal for heavy-duty machinery and equipment requiring high wear resistance | ASTM A829, ASTM A36, SAE J403 |
Specifications Table
| Material | 4140 Steel |
|---|---|
| Grades | ASTM A829, AISI 4140 |
| Standard | ASTM A36, AMS 6349 |
| Size Range | Diameter: 10mm to 300mm |
| Length | Up to 6 meters |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr | Machine components, gears, shafts, and structural applications |
| 4140 HT Round 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, automotive, and aerospace components |
| 4140 QT Round 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 machinery, oil and gas industry fittings |
| 4140 Prehard Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, pre-hardened | Tooling, dies, and other applications requiring high hardness |
| 4140 Mod Round Bar | 0.40% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, modified | Specialized engineering applications, high strength requirements |
Available Sizes of 4140 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 20 |
| 25 | 30 |
| 35 | 40 |
| 45 | 50 |
| 55 | 60 |
| 65 | 70 |
| 75 | 80 |
| 90 | 100 |
| 110 | 120 |
| 125 | 150 |
Chemical Properties of 4140 Round Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Copper (Cu) | ≤ 0.25 |
Mechanical Properties of 4140 Round Bar
| Property | Value |
|---|---|
| Tensile Strength | 655 MPa |
| Yield Strength | 415 MPa |
| Elongation | 21% |
| Hardness | 28-32 HRC |
| Modulus of Elasticity | 210 GPa |
4140 Round Bar – Physical & Thermal Properties
Density of 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
Melting Point of 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1420 - 1540 °C | 2600 - 2800 °F |
Specific Heat of 4140 Round Bar
| Specific Heat of 4140 Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 460 | 20 - 100 | Room Temperature |
| 500 | 100 - 300 | Heating |
| 540 | 300 - 600 | High Temperature |
Electrical Resistivity of 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 74 | 20 | As Rolled |
| 75 | 100 | |
| 76 | 200 | |
| 77 | 300 | |
| 78 | 400 | |
Equivalent of 4140 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| AISI | 42CrMo4 | G41400 |
| ASTM | 4140 | G41400 |
Manufacturing Process & Heat Treatment of 4140 Round Bar
Annealing
Annealing of 4140 round bars is performed to relieve internal stresses and improve machinability. The bars are heated to a temperature of 870-910°C and held for a specific duration before being cooled slowly in a furnace. This process results in a softer material that can be further processed or machined easily.
Forging
The forging process for 4140 round bars involves heating the steel to a temperature range of 1100-1200°C and then shaping it using mechanical force. This process enhances the mechanical properties of the steel by refining the grain structure, resulting in increased strength and toughness.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 830-860 | Oil or Water | To increase hardness and strength |
| Tempering | 400-700 | Air | To reduce brittleness and relieve stresses |
| Quenching | Varies | Oil | To achieve desired hardness |
The manufacturing and heat treatment processes of 4140 round bars ensure that the final product meets the stringent requirements for strength, hardness, and toughness, making it suitable for various industrial applications.
Various Types
4140 Round Bar - Standard
- Diameter: 20mm - 300mm
- Condition: Hot Rolled, Annealed
- Applications: Automotive components, Gear shafts, Axles
4140 Round Bar - Alloy Steel
- Diameter: 25mm - 200mm
- Condition: Quenched and Tempered
- Applications: Machinery parts, Structural applications, Tooling
4140 Round Bar - Custom Sizes
- Diameter: Customized as per requirement
- Condition: Cold Drawn, Hot Rolled
- Applications: Aerospace, Oil & Gas, Heavy machinery
4140 Round Bar - High Strength
- Diameter: 10mm - 150mm
- Condition: Normalized
- Applications: High-stress applications, Automotive, Defense
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 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| 4140 Round Bar | 3 mm | $2.50 – $3.00 | ₹205 – ₹246 |
| 4140 Round Bar | 6 mm | $2.40 – $2.90 | ₹197 – ₹239 |
| 4140 Round Bar | 10 mm | $2.30 – $2.80 | ₹189 – ₹230 |
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 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
- Alloy Steel 4140 Round Bar suppliers in Delhi
- 4140 Steel Round Bar price in Delhi
- 4140 Round Bar manufacturers in India
- 4140 Round Bar stockists in Delhi
- High tensile steel round bars in Delhi
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.