4140 Round Bar exporter in Indonesia
4140 Round Bar exporter in Indonesia offers high-quality alloy steel bars known for their exceptional strength and toughness. This material, composed primarily of chromium, molybdenum, and manganese, is widely used in demanding industrial applications requiring durability and wear resistance. The round bars are precision-manufactured to meet stringent international standards, ensuring consistent mechanical properties and dimensional accuracy.
These alloy steel rods typically feature excellent hardenability and are supplied in various diameters and lengths to accommodate diverse engineering needs. Their superior tensile strength, combined with good fatigue resistance, makes them ideal for components such as shafts, gears, bolts, and machine parts. Heat treatment processes like quenching and tempering further enhance the mechanical characteristics, allowing customization according to specific project requirements.
Industries including automotive, construction, oil and gas, and heavy machinery rely heavily on these round bars for critical parts that must withstand high stress and harsh environments. The material's versatility also makes it suitable for fabrication and machining, enabling manufacturers to achieve intricate designs without compromising structural integrity. Its robust chemical composition ensures corrosion resistance, which is vital for long-term performance in challenging conditions.
Export readiness is a key advantage offered by suppliers in Indonesia, who maintain rigorous quality control and certification protocols to meet global market demands. With efficient logistics and compliance with international shipping standards, these alloy steel bars are delivered promptly to clients worldwide. The availability of comprehensive technical support and material traceability further strengthens the confidence of industrial buyers in sourcing from this region.
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 Indonesia 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 Indonesia
- 2. How to Choose the Right Manufacturer
- 3.Comparison of 4140 Round Bar exporter in Indonesia
- 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 Indonesia
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 Indonesia
| 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
- ✔ High tensile strength for demanding applications
- ✔ Excellent fatigue resistance and toughness
- ✔ Versatile material for various engineering designs
- ✔ Good machinability for efficient production
- ✔ Available in various sizes and dimensions
- ✔ Complies with international quality standards
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, 0.80-1.10% Cr, 0.15-0.30% Mo | Used in the manufacturing of automotive components, gears, and structural applications requiring high strength | ASTM A829, AMS 6345, ASME SA-829 |
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.80-1.10% Cr, 0.15-0.30% Mo | Ideal for applications in machinery, oil and gas, and heavy equipment | ASTM A829, AMS 6345, ASME SA-829 |
| 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.80-1.10% Cr, 0.15-0.30% Mo | Commonly employed in heat-treated components requiring enhanced hardness and toughness | ASTM A829, AMS 6345, ASME SA-829 |
Specifications Table
| Material | 4140 Steel |
|---|---|
| Grades | AISI 4140 |
| Standard | ASTM A829, ASTM A36 |
| Size Range | 10 mm to 300 mm diameter |
| Length | 3 meters to 6 meters |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Used in the manufacture of gears, shafts, and heavy-duty machinery components. |
| 4140 HT Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Suitable for applications needing high tensile strength, such as automotive parts and tooling. |
| 4140 QT Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Ideal for high-stress applications like axles and crankshafts due to its toughness. |
| 4140 Pre-Hard Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Commonly used in hydraulic cylinders and other applications requiring pre-hardened properties. |
| 4140 Alloy Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Utilized in fields such as oil and gas drilling, and aerospace engineering for its excellent strength. |
Available Sizes of 4140 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 20 | 25 |
| 30 | 35 |
| 40 | 45 |
| 50 | 55 |
| 60 | 65 |
| 70 | 75 |
| 80 | 85 |
| 90 | 95 |
| 100 | 110 |
| 120 | 130 |
Chemical Properties of 4140 Round Bar
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.04 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Iron (Fe) | Balance |
Mechanical Properties of 4140 Round Bar
| Property | Value |
|---|---|
| Tensile Strength | 655 - 850 MPa |
| Yield Strength | 415 MPa (min) |
| Elongation | 20% (min) |
| Hardness | 28 - 34 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 |
| 480 | 100 - 600 | Heating |
| 500 | 600 - 1000 | High Temperature |
Electrical Resistivity of 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | Annealed |
| 80 | 100 | |
| 85 | 200 | |
| 90 | 300 | |
| 95 | 400 | |
Equivalent of 4140 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| AISI | 1.7225 | G41400 |
| ASTM | A29 | A4140 |
Manufacturing Process & Heat Treatment of 4140 Round Bar
Annealing
Annealing of 4140 round bars involves heating the steel to a temperature range of 850-900°C, followed by controlled cooling. This process relieves internal stresses, refines the grain structure, and improves machinability, making it suitable for subsequent manufacturing processes.
Forging
Forging of 4140 round bars is typically performed at high temperatures, between 1100-1250°C. This hot working process enhances the mechanical properties by improving the grain flow and aligning the microstructure, resulting in superior strength and toughness.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 800-850 | Oil | To increase hardness and strength by transforming the microstructure to martensite. |
| Tempering | 400-600 | Air | To reduce brittleness and relieve stresses while maintaining hardness. |
| Stress Relieving | 600-700 | Air | To minimize residual stresses from machining and improve dimensional stability. |
The manufacturing and heat treatment processes for 4140 round bars are critical in achieving the desired mechanical properties and performance in various industrial applications.
Various Types
4140 Round Bar - Hot Rolled
- Diameter: 20mm to 300mm
- Condition: Hot Rolled
- Applications: Automotive parts, machinery components
4140 Round Bar - Cold Drawn
- Diameter: 10mm to 250mm
- Condition: Cold Drawn
- Applications: Precision shafts, high-stress applications
4140 Round Bar - Annealed
- Diameter: 25mm to 350mm
- Condition: Annealed
- Applications: Forging, machining, welding applications
4140 Round Bar - Quenched and Tempered
- Diameter: 30mm to 200mm
- Condition: Quenched and Tempered
- Applications: Heavy-duty machinery, structural components
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 | ₹207 – ₹248 |
| 4140 Round Bar | 6 mm | $2.40 – $2.90 | ₹199 – ₹241 |
| 4140 Round Bar | 10 mm | $2.30 – $2.80 | ₹192 – ₹232 |
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
- 4140 Steel Round Bar Supplier in Indonesia
- 4140 Alloy Steel Round Bar Manufacturer
- 4140 Steel Round Bar Price in Indonesia
- 4140 Round Bar Importer in Indonesia
- 4140 Steel Round Bar Specifications
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.