4140 Round Bar Supplier in Chennai
Super Metal Manufacturing Co. Since 1965 is an experienced 4140 Round Bar Supplier in Chennai, serving engineering, manufacturing, fabrication and industrial customers with chromium-molybdenum alloy steel round bars. Chennai is a major industrial and manufacturing centre in South India with strong activity in automotive, engineering, machinery, manufacturing and industrial sectors.
Our 4140 Round Bars are suitable for manufacturers, engineering companies, machinery manufacturers, fabricators, OEMs, automotive component manufacturers and industrial procurement companies. Customers in Chennai and nearby industrial areas can source different sizes and material conditions according to their requirements.
Important industrial locations around Chennai include Ambattur, Padi, Guindy, Manali, Sriperumbudur, Oragadam, Maraimalai Nagar and Ennore. These areas support diverse engineering, manufacturing, automotive and industrial activities, creating demand for reliable alloy steel products.
Our 4140 Round Bars can be supplied according to required diameter, length, finish and material condition. Customers can share their required grade, size, quantity and application to check suitable material availability.
What is 4140 Round Bar?
4140 Round Bar is a chromium-molybdenum alloy steel round bar commonly specified as AISI 4140, SAE 4140 and UNS G41400. It is widely selected for engineering applications requiring a combination of strength, toughness, wear resistance and hardenability.
Chromium and molybdenum contribute to the hardenability and mechanical performance of 4140 alloy steel. With suitable heat treatment, the material can achieve different combinations of hardness, strength and toughness.
4140 Round Bars can be machined through turning, drilling, milling, threading and grinding under appropriate material conditions. This makes the grade useful for manufacturing shafts, gears, pins, spindles, rollers and other mechanical components.
4140 is commonly associated with grades such as EN19, 42CrMo4 and DIN 1.7225. Exact equivalence should always be verified against the applicable standard, chemical composition and mechanical requirements.
Advantages of 4140 Round Bars
4140 Alloy Steel Round Bars are selected for applications requiring a combination of strength, toughness and wear resistance. Important advantages include:
- High Strength: Suitable for components subjected to substantial mechanical loading.
- Good Toughness: Provides a useful balance of toughness and strength after suitable heat treatment.
- Good Hardenability: Chromium and molybdenum contribute to hardenability.
- Wear Resistance: Suitable heat treatment can improve resistance to mechanical wear.
- Fatigue Performance: Suitable for components exposed to repeated mechanical stresses.
- Machinability: Can be machined into shafts, pins, gears and other engineering components under appropriate conditions.
- Heat Treatment Capability: Can be supplied in different material conditions according to application requirements.
4140 Round Bar Manufacturing Process
The production and processing of 4140 Round Bars involves controlled stages to achieve the required dimensions, surface condition and mechanical properties. The exact production route depends on the required size and supply condition.
Raw Material Selection
Suitable chromium-molybdenum alloy steel is selected according to the specified 4140 grade and applicable standard.
Heating
The alloy steel is heated under controlled conditions before hot working to support consistent rolling or forging operations.
Hot Rolling
Heated alloy steel is processed through rolling equipment to obtain the required round-bar profile and approximate dimensions.
Forging
Forging may be used for specific 4140 applications where forged material is required for heavy-duty engineering components.
Heat Treatment
Depending on the required material condition, 4140 Round Bars may undergo annealing, normalizing, hardening, quenching and tempering.
Cutting and Straightening
Bars can be straightened and cut to standard or customer-specified lengths according to order requirements.
Surface Finishing
4140 Round Bars can be supplied in black, bright, turned, peeled, ground or forged finishes depending on size and requirements.
Inspection
Inspection may include chemical analysis, dimensional inspection, surface inspection and mechanical testing according to the applicable specification.
4140 Round Bars Material Specification
| Grade | AISI 4140 / SAE 4140 |
|---|---|
| Material Type | Chromium Molybdenum Alloy Steel |
| Material Number | 1.7225 / 42CrMo4 |
| UNS | G41400 |
| Standards | ASTM, ASME, AISI, SAE, EN, DIN, JIS, BS |
| Diameter | 5 mm to 500 mm |
| Length | 1000 mm to 6000 mm |
| Finish | Bright, Black, Forged, Turned Bright |
| Form | Round, Billet, Ingot, Forging |
| Supply Condition | Annealed, Normalized, Hardened & Tempered, Quenched & Tempered |
AISI 4140 / SAE 4140 / EN19 / 42CrMo4 Round Bars Grade
| Country names | USA | German | British | Japan | China | Australia | |
|---|---|---|---|---|---|---|---|
| Country standards | UNS | AISI / ASTM | DIN | BS | JIS | GB/T | AS |
| Grades | G41400 | 4140 | 1.7225 / 42CrMo4 | EN19 / 817M40 | SCM440 | 42CrMo | 4140 |
4140 Round Bars Chemical Composition
4140 alloy steel contains carbon, manganese, silicon, chromium and molybdenum. These alloying elements contribute to the material's strength, hardenability and mechanical performance.
Actual chemical composition should be confirmed against the applicable material standard and Mill Test Certificate for the supplied heat.
| Element | Typical Composition |
|---|---|
| Carbon (C) | 0.38 – 0.43% |
| Manganese (Mn) | 0.75 – 1.00% |
| Silicon (Si) | 0.15 – 0.35% |
| Chromium (Cr) | 0.80 – 1.10% |
| Molybdenum (Mo) | 0.15 – 0.25% |
| Phosphorus (P) | As per applicable specification |
| Sulfur (S) | As per applicable specification |
4140 Round Bars Mechanical Properties
Mechanical properties depend on the material condition, heat treatment, section size and applicable specification. The following values are representative and should be confirmed against the specified material condition and test certificate.
| Property | Typical Value / Range |
|---|---|
| Tensile Strength | 850 – 1000 MPa |
| Hardness (Q&T) | 28 – 34 HRC |
| Material Condition | As Specified / Heat Treated |
4140 Round Bars Applications in Chennai
4140 Round Bars are suitable for a wide range of engineering, manufacturing and industrial applications in Chennai and nearby industrial areas. The grade is commonly selected for components where strength, toughness and hardenability are required.
Automotive Industry
4140 Round Bars can be used for suitable shafts, axles, gears, pins, crankshafts and other automotive components according to design and material requirements.
Engineering Industry
Engineering manufacturers can use 4140 alloy steel for shafts, spindles, rollers, studs, pins and customized mechanical components.
Machinery Manufacturing
4140 is suitable for selected machinery components exposed to mechanical loading, torsional stresses and repeated operation.
Industrial Equipment
4140 Round Bars can be used for suitable rollers, shafts, pins and other industrial equipment components.
Fabrication Industry
Fabricators can use 4140 Round Bars for customized mechanical parts where higher strength alloy steel is required.
Heavy Engineering
4140 alloy steel is suitable for selected heavy engineering components requiring a combination of strength and toughness.
4140 Round Bars Heat Treatment
4140 alloy steel can undergo different heat-treatment processes to achieve the required balance of hardness, strength and toughness. The selected process depends on the final application and specified mechanical properties.
Annealing
Annealing provides a relatively softer material condition and can support machining and subsequent processing.
Normalizing
Normalizing can help establish a suitable and uniform microstructure.
Hardening
Hardening increases hardness and strength through controlled heating and cooling.
Quenching
Quenching forms part of the hardening process and the appropriate cooling method depends on section size and required properties.
Tempering
Tempering after hardening helps achieve a suitable balance between strength, hardness and toughness.
4140 Round Bar Supplier for Chennai
Super Metal Manufacturing Co. supplies 4140 Round Bars for Chennai industrial and engineering requirements. Our supply service is suitable for manufacturers, machinery companies, fabricators, OEMs, automotive companies and engineering industries requiring alloy steel round bars.
Customers from Chennai and nearby industrial areas can contact us with the required grade, diameter, length, quantity, finish and material condition. We can check suitable product availability and provide commercial details based on the requirement.
4140 Round Bar Supplier for Ambattur
Ambattur is an important industrial area of Chennai with engineering, manufacturing, machinery and fabrication activities. Super Metal Manufacturing Co. can supply 4140 Round Bars for suitable industrial requirements in Ambattur and surrounding areas, subject to product availability and customer specifications.
4140 Round Bar Supplier for Padi
Padi is an established industrial and automotive-related area in Chennai. We support alloy steel round bar requirements for suitable engineering, machinery and automotive component applications in Padi and nearby industrial locations.
4140 Round Bar Supplier for Guindy
We also support 4140 Round Bar requirements for engineering, manufacturing and industrial customers in Guindy and surrounding Chennai areas. Customers can share their exact grade, size, quantity and material condition for quotation and availability.
4140 Round Bar Supplier for Manali
Manali and the surrounding industrial belt have a range of manufacturing and process-industry activities. Super Metal Manufacturing Co. can supply 4140 Round Bars for suitable mechanical, maintenance and fabrication requirements in this region.
4140 Round Bar Supplier for Sriperumbudur
Sriperumbudur is an important manufacturing and automotive industrial corridor near Chennai. We support alloy steel round bar requirements for suitable machinery, automotive and engineering applications in the region.
4140 Round Bar Supplier from Mumbai
Super Metal Manufacturing Co. is based in Mumbai, Maharashtra and supplies 4140 Alloy Steel Round Bars to customers across India. Our supply network supports industrial requirements in Chennai, Tamil Nadu and other major manufacturing centres.
We supply AISI 4140, SAE 4140, EN19 and 42CrMo4 Round Bars for engineering, automotive, machinery, construction, mining and general industrial applications.
4140 Round Bars Quality Assurance
Quality documentation and material traceability are important for alloy steel products used in engineering applications. Relevant documentation can be supplied according to the applicable specification and customer purchase order requirements.
- Mill Test Certificate
- Chemical Composition Report
- Mechanical Test Report
- Dimensional Inspection Report
- Surface Inspection
- Material Traceability
- Third-Party Inspection on Request
4140 Round Bars Export Packing
4140 Round Bars can be packed according to product dimensions, quantity and transportation requirements. Export packing may include steel bundles, wooden crates or skids, protective wrapping and waterproof packaging where required.
MOQ, Lead Time & Payment
Minimum Order Quantity:
MOQ depends on diameter, quantity, stock availability and production
requirements.
Lead Time:
Lead time depends on stock availability, quantity, cutting,
inspection, heat treatment and documentation requirements.
Payment Terms:
Commercial payment terms can be discussed according to order
quantity, destination and customer requirements.
Why Choose Super Metal for 4140 Round Bars?
- Since 1965: Decades of experience in the metal industry.
- 4140 Alloy Steel Supply: Supply of AISI 4140 and related alloy steel grades.
- Industrial Supply: Suitable for engineering and manufacturing requirements.
- Multiple Sizes: Different diameters and lengths according to specification and availability.
- Multiple Finishes: Bright, black, forged and turned finishes.
- Heat Treatment: Annealed, normalized and heat-treated conditions according to requirements.
- Quality Documentation: Relevant material and inspection documentation can be supplied.
- Pan-India Supply: Supply support for Chennai and other industrial locations across India.
Frequently Asked Questions (FAQs)
Who is a 4140 Round Bar Supplier in Chennai?
Super Metal Manufacturing Co. Since 1965 is an experienced 4140 Round Bar Supplier from Mumbai, India, supplying 4140 Alloy Steel Round Bars for industrial and engineering requirements in Chennai and other locations.
What is 4140 Round Bar?
4140 Round Bar is a chromium-molybdenum alloy steel round bar commonly specified as AISI 4140, SAE 4140 and UNS G41400. It is widely used for high-strength mechanical and engineering components.
What are 4140 Round Bars used for?
4140 Round Bars are used for shafts, gears, axles, pins, spindles, rollers, crankshafts, studs and other mechanically loaded components used in automotive, machinery, engineering and industrial applications.
Can you supply 4140 Round Bars to Chennai?
Yes. Super Metal Manufacturing Co. supplies 4140 Round Bars for customers in Chennai and surrounding industrial areas, subject to product availability, order quantity and applicable specifications.
Can you supply 4140 Round Bars to Ambattur and Padi?
Yes. 4140 Round Bars can be supplied for suitable industrial requirements in Ambattur, Padi and other manufacturing locations around Chennai, subject to availability and customer specifications.
What sizes of 4140 Round Bars are available?
4140 Round Bars can be supplied in different diameters and lengths according to the applicable specification, stock availability and customer requirements.
Can 4140 Round Bars be supplied heat treated?
Yes. Depending on the required specification, 4140 Round Bars can be supplied in annealed, normalized, quenched and tempered, or hardened and tempered conditions.
What finishes are available for 4140 Round Bars?
4140 Round Bars can be supplied in bright, black, forged, turned, peeled, ground and other specified finishes depending on size and customer requirements.
Do you provide Mill Test Certificates?
Yes. Relevant material and inspection documentation can be supplied according to the applicable specification and customer purchase order requirements.
How can I request a quotation for 4140 Round Bars in Chennai?
You can send the required grade, diameter, length, quantity, finish and heat-treatment condition by email or WhatsApp to receive availability and commercial details.